All Available Parts - 1972 Ford Mustang

Complete engine mounting hardware kit for the 72-73 351C 4-barrel engine. See below for list of included hardware. Click on images to enlarge.

Sold as a pair. Replaces Ford Part # : D0OZ-8052 Check out our video on Radiator and Fan upgrades below:

New valve cover bolts for all Boss 302, 351C-2V, and 351C-4V Ford engines. These are the AMK bolts with original style Ford assembly line head markings. Correct 7/16 hex head and split tooth captured washer, sold in sets of 16.*Note - Excludes 289/302 and 351W engines (see part  number 8316)1/4-20 X 5/8" Hex Head Bolt with Electrolytic Zinc & Wax finishReplaces Ford part number 373071-S.

Reproduction brake and fuel line clamp kit for Mercury Cougars and Ford mustangs equipped with disc brakes.

Reproduction brake and fuel line clamp kit for Mercury Cougars and Ford Mustangs equipped with drum brakes.

Cable length 22.50 inches long. Has clevis and pin on the end for attaching to the throttle pedal assembly. *Note - Used on Cougars prior to 7/10/1972 look at your throttle pedal end.

Throttle cable for many 1972 and all 1973 Mercury Cougar and Ford Mustang H code 351-2V engines. Cable length 23-3/4 inches long. Uses a green plastic bushing to attach to the throttle pedal. We believe that the MPC is wrong on the length. Our observations are that the 2V cable is longer than the 4V version.Replaces Ford part number D3ZZ-9A758-B.*Note - Used on 1972 Cougars after 7/10/1972 and all 1973 Cougar and Mustangs. Look at your throttle pedal end for verification. I doubt that...

Throttle cable for many 1972 and all 1973 Mercury Cougar and Ford Mustang Q code 351-4V engines. Cable length 23 inches long. Identified by the blue plastic bushing on the throttle pedal end of the pedal. We believe that the MPC is wrong on the stated length, the 4V cable is shorter than the 2V version.Replaces Ford part number D3ZZ-9A758-C.*Note - Used on 1972 Cougars after 7/10/1972 and all 1973 Cougar and Mustangs. Look at your throttle pedal end for verification. I doubt that...

Reproduction throttle cable for the Cougar or Mustang equipped with the 351 engine.Cable length 22.50 inches long.  *Note - Used on Cougars prior to 7/10/1972 look at your throttle pedal end.

Reproduction throttle cable for the Cougar or Mustang equipped with the 351 engine. Cable length 24 inches long, check your application. There were size differences between the 2V and the 4V engines. Replaces Ford part number D3ZZ-9A758-C. *Note - Used on 1972 Cougars after 7/10/1972 and all 1973 Cougar and Mustangs. Look at your throttle pedal end for verification. I doubt that date, I think it was much earlier, than July 1972. ...

SBVALVCOVER Ford engine blue painted valve cover with "Powered by Ford" embossed in the metal. Correct on 1968-1971 Mercury Cougar and 1968-73 Ford Mustang with 289/302/351W engines. Ford master parts catalog shows a right and left version of this cover those Service Replacement numbers are D2OZ-6582-C & D2OZ-6582-D. *Note - This cover will not work on a 351 Cleveland engine.

replaces Ford part # 385161-S Zinc - Dichromate (yellow - rainbow) finish

Bracket that mounts to firewall for accelerator shaft. 1971-73 Mercury Cougar and Ford Mustang. 

York compressor for air conditioning systems for Mercury Cougar and Ford Mustang. These should be professionally inspected or rebuilt and our compressors have all been in storage for some time. Shipped without pulleys, clutches, or valves. The York compressor is constructed mostly of aluminum and is lighter than the Tecumseh brand compressor by 10 pounds. The York compressors are less common too, subject to availability. We often see part numbers on the York tag (which does not list a Ford...

Tecumseh compressor for air conditioning systems for Mercury Cougars and Ford Mustangs. These should be professionally inspected or rebuilt and our compressors have all been in storage for some time. These Tecumseh compressors came with a front oil fill plug up until 1967, thereafter, they have a top fill plug. Top fill is the most common, and likely what you will receive, unless you specify the 1967 style with front fill. These units are shipped without pulleys, clutches, or valves. The...

Door striker replacement bushing.   .90 tall, .69 OD. .49ID. .10 thickness. These plastic bushings were used starting in 1972. We also sell the whole striker assembly. Common striker to many Ford cars after 1971. Apparently Sikorski helicopters too.

Door Striker bolt assembly complete with PVC bushing. 7/16-14 thread. Silver zinc finish. Replaces Ford part #: D2AZ-6522008-A.

Plastic insert with metal locking retainer. Replaces Ford part # C5AZ-6221952-A. NOTE* This clip will need to be squeezed on the clip side in order to obtain a good grip. Check out our handy diagram below to find other '67-'68 door parts you may need. All the item numbers shown can be typed in to the search bar on our site. (Click image to view full size) ...

Replaces Ford Part #: D1ZZ-6221813-A

Replaces Ford Part #: D1ZZ-6221812-A

Convenient matched sets save costly locksmith work. Kits includes a pair of door lock cylinders. Comes with two keys. Includes door cylinder gaskets. Replaces Ford Part # : D2AZ-6521984-A

Ignition lock set is new original from the O.E.M. source. Factory fresh with two keys. Fits 1970 through 1973's manufactured before 5/17/1973. Replaces Ford Part #: D0AZ-11572-A, D2AZ-11582-B, SW-1114.

These are the screws that secure the door latch mechanism to the door shell. These screws come with the attached crown headed lock washer, just like the originals, so be sure to tighten them down snugly to ensure that the screw head sits flush into the screw holes. Sold individually. Three required per door, six per car.

Door lock latch lever, for driver or passenger side locks. Attach with an "E" clip on the rear side of the lock mechanism. Used "E" clip is included. We are going to say that these fit all Ford door locks 1965 through 1973 and beyond. *Note you will need to purchase or reuse your retainer clip for attaching the lock rod. Retainer clip not included, we have good used or reproduction clips, see related items.Ford number stamped C5AB-6221970-A or D2AB-6221970-AA  ...

Latch rod that links the door latch and the inside door handle, passenger side door. Fits any 1971-73 Mercury Cougar and Ford Mustang. Normally this rod was fabric covered. Used rod only, no retaining end clips.Replaces Ford part number D1ZZ-6521940-A.

Latch rod that links the door latch and the inside door handle, driver side door. Fits any 1971-73 Mercury Cougar and Ford Mustang. Normally this rod was fabric covered. Used rod only, no retaining end clips.Replaces Ford part number D1ZZ-6521941-A.

Inside door handle release mechanism for the driver side on 1972-73 Cougar and Mustang. This latch mechanism went through a couple of revisions by the end of 1973. Ford calls this part a 'control and link assembly', this particular one only works with the deluxe door handles as shown in the photo. The Ford MPC describes those door handles as fitting the door panels with molded armrests, instead of the smaller detachable armrests on the base interiors. This style was used after 9/15/1971. It...

Inside door handle release mechanism for the passenger side on base model standard 1972-73 Cougar and Mustang. This latch mechanism went through a couple of revisions by the end of 1973. Ford calls this part a 'control and link assembly', this particular one only works with the base door handles as shown in the photo. The Ford MPC describes those door handles as fitting the door panels with detachable arm rests, instead of the molded arm rests on the door panels, as found on the XR7 and Decor...

Inside door handle release mechanism for the passenger side on 1972-73 Cougar and Mustang. This latch mechanism went through a couple of revisions by the end of 1973. Ford calls this part a 'control and link assembly', this particular one only works with the deluxe door handles as shown in the photo. The Ford MPC describes those door handles as fitting the door panels with molded armrests, instead of the smaller detachable armrests on the base interiors. This style was used after 9/15/1971. It...

For 1972-73 Mercury Cougars and Ford Mustangs with the 351W engine. This is a Pitts manufactured pulley and clutch assembly with a pulley diameter of 6-5/16", a clutch diameter of 5-1/8", and an overall thickness of 1-11/16 inches. Whew boy, say that 5 times fast!Ford part # D2ZA-2981-A. May also have part numbers of D2ZA-2981-A1A, D2ZA-2981-A1B, or D2ZA-2981-A2A.

Brake line rubber grommets for any 1967-73 Mercury Cougar or Ford Mustang. These are the ones that go through the shock towers for the front brake lines. Drum or disc, all the same. Sold as a PAIR. Ford number 373624-S.

Used bolts, and usually new washers. Convertible kit comes with 4 - "A" bolts, 4 "B" bolts, 10 new washers. Kit fits all 1970-73 Mercury Cougar and Ford Mustang convertibles. Coupes or hard tops would include shoulder belt hardware. We will make sure these original seat belt bolts are damage free and rust free. The gold finish will be degraded. There were minor and major changes almost every year. We also have hundreds of used belts and belt sets that we cannot possibly list all of, so give us...

384543-S8 Power steering pump adjusting spacer for use without air conditioning. For most 1970 - 1973 Mercury Cougar or Ford Mustang with 351C engines. Spacer dimensions: 7/16" I.D. and 1/2" thick.*Note 1970 and later cars with 302 or 351W engines use a 3/4 inch spacer.

These are sold individually, two required per car. This is the aluminum emblem / decal which mounts on the center of all of the 68-73 scuff plates. Features raised script like original. Adhesive backed with a protective coating that peels off after installation. Replaces Ford Part #: C7ZZ-6513208-T.Licensed by FORD

Good quality but not as good as original in that it is too shiny. Fits Coupe or convertible, left or right. Sold individually. Ford emblem sold separate. Replaces Ford part # D1ZZ-6513298-A

Good deal for the guy missing a sill plate on a driver. Sold individually.

Reproduction stainless steel scuff / sill plate. Fits Coupe or convertible, left or right. Sold as a pair. Ford emblem sold separate, find it here. Replaces Ford part # D1ZZ-6513298-A

Plastic insert with metal locking retainer. The plastic came in various colors, white, red, and black are common. Replaces Ford part # C5AZ-6221952-A.Check out our handy diagram below to find other '67-'68 door parts you may need. All the item numbers shown can be typed in to the search bar on our site. (Click image to view full size) ...

Reproduction rubber bumper for your 67 - 73 Cougar or Mustang door latch mechanism. The bumper sits on the inside of your door latch mechanism, and is there to dampen the blow from the striker when you close your door.

When ordering this item, you do not need to order a key blank, the key is included. If you need more than one key, you don't need to pay for multiple key cutting services, just buy extra blanks and mention it in the comment section of your order. This listing is for the ECONOMY version of the trunk / glove box key. We now have the ability and equipment from an old Lincoln Mercury dealership to cut keys for Fords "by the numbers". Instead of copying a worn key to make yet another key that...

Good used drivers side door latch for inside the door. Fits any 1971-73 Mercury Cougar and Ford Mustang. Comes as shown, we also have latch rods, fasteners, etc in the related items. Replaces Ford Part #: D1ZZ-6221813-A

Good used drivers side door latch for inside the door. Fits any 1971-73 Mercury Cougar and Ford Mustang. Comes as shown, we also have latch rods, fasteners, etc in the related items. Replaces Ford Part #: D1ZZ-6221813-A

Refurbished pair of door lock cylinders and ignition cylinder for all double cut key Fords 1970-73. These are coded to the original key code, which was stamped onto one of the door lock cylinders. Sometime after 1973, Ford changed the ignition lock cylinder end. We know it works through 1973, not sure of the change. It must fit the brass lock gear at the bottom of the cylinder hole in the side of the steering column. Refer to your shop manual for removal and installation. Includes two...

When ordering this item, you do not need to order a key blank, the key is included. If you need more than one key, you don't need to pay for multiple key cutting services, just buy extra blanks and mention it in the comment section of your order. We now have the ability and equipment from an old Lincoln Mercury dealership to cut keys for Fords "by the numbers". Instead of copying a worn key to make yet another key that doesn't fit properly, we can cut keys as they would have come from the...

One size fits all.  Set of 4.  Good replacement if not worried about show quality. 1967 – 1968 Coupe 6 Required per car 1969 – 1973 Coupe 4 required per car 1969 – 1973 Convertible 2 required per car Will also work on the 69 - 73 shifter bezels. 4 required. Not recommended for our Mass Backed Carpeting. Please see related items for the longer screws. Replaces Ford Part #: 381571-S

Nice reproduction of the outer door handles for the 1971, 1972 or 1973 Mercury Cougar. Replaces Ford Part #: D1ZZ-6222404-A or D1ZZ-6222405-A.

8-32 x 1 inch long screws for attaching automatic shift bezels on 1969-73 Mercury Cougar or Ford Mustang with added Mass Backed Carpeting. Shiny zinc screws as shown, set of 4. Replaces Ford Part #: 381571-S

This is the round metal threaded disc that attaches the D0ZZ-6523258-A bushing to the door glass brackets. About 1-3/4" in diameter, two each per door glass on a 1970. 1971-73 Mercury Cougar and Ford Mustang use 3 of these for retaining the door channel bracket. Ford part number 384289-S.Click on images to enlarge. Do you have questions about Glue-In vs Bolt-In glass? How about how to properly install Glue-In glass in your 1969 Cougar or Mustang? Check out our video below for some great glassy...

57084-S Attaching bolt with 7/16" hex head and captured washer. Among other things, it is used to attach the door run, window stops (all 3), both window stabilizers, and the window regulator. Same bolts for manual and power window regulators. Bolt sold individually, there are a good handful in each door. This bolt is used for bolting in the bolt-in glass on 1970, lower "L" bracket for rear quarter windows on 1971-73 Cougar and Mustangs.

Almost identical to the original, tab is a bit longer. *NOTE*1969 Cougar owners do not need this part as it is built in the the chromed plastic, rectangular bezel on the door panel.

Great reproduction of a rather hard to find part.

D1ZZ-6522380-B Used stabilizer that attaches to the top of the door in two different places. These have a fuzzy padded piece that keeps the glass from rattling while it goes up and down on the door run. In most cases

Reproduction quarter window roller for the 71 - 73 Cougar or Mustang. These rollers attach to the window channel bracket and slide up and down through the window guide.Sold individually

Reproduction Guide Anti-Rattle set for the 71 - 73 Cougar or Mustang. Once the door glass run is installed

383278-S 1/4-20 Nut with spinning or captured washer, sometimes called a swivel nut, for attaching various door window components for 1970-1973 Cougar and Mustang bolt-in door glass. This nut was used to fasten the guides into the 1970 bolt in glass. Additionally this nut was used for attaching the window channel bracket to door and quarter glass on the 1971-73 Cougar and Mustangs. This is a new or reproduction part from AMK.

This gear was used on Cougars starting in 1969 and then Mustang in 1971. Fits pretty much every (common) Ford power window motor except for the unique "pancake" style motors found with the 1/4 windows on the Cougar and Mustang. Includes metal plate as shown. Replaces Ford part # D0AZ-62234A24. Do you have questions about Glue-In vs Bolt-In glass? How about how to properly install Glue-In glass in your 1969 Cougar or Mustang? Check out our video below for some great glassy information! 1969...

Shoulder harness bolt cover. This also holds seat belt buckle when it is not in use. Fits Left Hand or Right Hand side of the car. 2 required per car, sold individually. Below are some examples of originals in cars from our wrecking yard: ...

This never came on a Cougar, but it is a nice upgrade from the string that attaches your seat belt shoulder strap to the coat hanger when the shoulder strap is not in use. Fits all models except convertible. Originally, the shoulder strap connected to the bolt cover on one end, And to a string on the shoulder strap that connects it to the coat hook to keep it out of the way when not in use. This new hook slides into the track on the back of the moulding over the door, and is used instead of...

Great looking replacement style seat belts. All feature a mid sixties period look which includes a chrome buckle. Available in a variety of colors. Sold individually

Great looking replacement style seat belts. All feature a mid sixties period look which includes a chrome buckle. Available in a variety of colorssold individually

Great looking replacement style seat belts. All feature a mid sixties period look which includes a chrome buckle. Available in a variety of colors.sold individually

Great looking replacement style seat belts. All feature a mid sixties period look which includes a chrome buckle. Available in a variety of colors.sold individually

Great looking replacement style seat belts. All feature a mid sixties period look which includes a chrome buckle. Available in a variety of colors.sold individually

Great looking replacement style seat belts. All feature a mid sixties period look which includes a chrome buckle. Available in a variety of colors.sold individually

Great looking replacement style seat belts. All feature a mid sixties period look which includes a chrome buckle. Available in a variety of colors.sold individually

Great looking replacement style seat belts. All feature a mid sixties period look which includes a chrome buckle. Available in a variety of colors. Please note: this is the only aftermarket shade of Aqua, which was only used on the Ford Mustang. Contact us for availibility of good used Cougar correct aqua seat belts.Sold individually

These are era-correct looking seat belts at an affordable price.  These are not Concours reproductions, but have the correct vintage look used by Ford on multiple cars in the Mid to Late 1960's. Starburst Medallion used on the buckle is an exact copy of originals.Sold individually Includes: 1 Complete non-retracting seat belt (includes both male and female side)2 Bolts, nuts, and lock washers

1971 - 1973 Mercury Cougar and Ford Mustang coupe / convertible Grade B factory tinted glass for the passenger side door

1971 - 1973 Mercury Cougar and Ford Mustang coupe / convertible Grade B factory tinted glass for the driver side door

1971 - 1973 Mercury Cougar and Ford Mustang coupe / convertible Grade B factory tinted glass for the passenger side door

1971 - 1973 Mercury Cougar and Ford Mustang coupe / convertible Grade B factory tinted glass for the driver side door

1971 - 1973 Mercury Cougar and Ford Mustang coupe / convertible Grade A factory tinted glass for the passenger side door

D1ZZ-6523288-E Passenger side door window channel bracket. Fits all 1971-73 Mercury Cougar and Ford Mustangs. Side specific, this side for the passenger or right side door.Bracket only, No hardware included. Hardware sold separately. Shows mounting studs attached to glass. Shows guides and door run installed on door channel bracket. Installs as shown, driver/passenger opposite. ...

D1ZZ-6523288-F Driver side door window channel bracket. Fits all 1971-73 Mercury Cougar and Ford Mustangs. Side specific, this side for the passenger or right side door.Bracket only, No hardware included. Hardware sold separately. Shows mounting studs attached to glass. Shows guides and door run installed on door channel bracket. Installs as shown, driver/passenger opposite. ...

These are original looking seat belts at affordable prices. These are not Concours reproductions, but have the correct vintage look used by Ford on several cars in the Mid to Late 1960's. Starburst Medallion used on the buckle is an exact copy of originals. Hardware included!sold individually

These are original looking seat belts at affordable prices. These are not Concours reproductions, but have the correct vintage look used by Ford on several cars in the Mid to Late 1960's. Starburst Medallion used on the buckle is an exact copy of originals. Hardware included!sold individually

These are original looking seat belts at affordable prices. These are not Concours reproductions, but have the correct vintage look used by Ford on several cars in the Mid to Late 1960's. Starburst Medallion used on the buckle is an exact copy of originals. Hardware included!sold individually

These are original looking seat belts at affordable prices. These are not Concours reproductions, but have the correct vintage look used by Ford on several cars in the Mid to Late 1960's. Starburst Medallion used on the buckle is an exact copy of originals. Hardware included!Sold individually

These are original looking seat belts at affordable prices. These are not Concours reproductions, but have the correct vintage look used by Ford on several cars in the Mid to Late 1960's. Starburst Medallion used on the buckle is an exact copy of originals. Hardware included!sold individually

These are original looking seat belts at affordable prices. These are not Concours reproductions, but have the correct vintage look used by Ford on several cars in the Mid to Late 1960's. Starburst Medallion used on the buckle is an exact copy of originals. Hardware included! sold individually

This is an original looking seat belt at an affordable price. These are not Concours reproductions, but have the correct vintage look used by Ford on several cars in the Mid to Late 1960's. Starburst Medallion used on the buckle is an exact copy of originals. Hardware included! SOLD INDIVIDUALLY

These are original looking seat belts at affordable prices. These are not Concours reproductions, but have the correct vintage look used by Ford on several cars in the Mid to Late 1960's. Starburst Medallion used on the buckle is an exact copy of originals. Hardware included!Sold individually

Are you looking to replace or upgrade your complicated 1968-73 3 Point Seat Belts with a modern easy to use factory looking Belt?  These 3 Point Seat Belts will bolt onto any 1968-73 Coupe using your existing mounting hardware. . The belt buckles are very similar to the original starburst buckles Ford used in the Late 1960's

Are you looking to replace or upgrade your complicated 1971-73 3 Point Seat Belts with a modern easy to use factory looking Belt? These 3 Point Seat Belts will bolt onto any 1971-73 Coupe using your existing mounting hardware. . The belt buckles are very similar to the original starburst buckles Ford used in the Late 1960's

Are you looking to replace or upgrade your complicated 1968-73 3 Point Seat Belts with a modern easy to use factory looking Belt?  These 3 Point Seat Belts will bolt onto any 1968-73 Coupe using your existing mounting hardware. . The belt buckles are very similar to the original starburst buckles Ford used in the Late 1960's

New black plastic access plug as found on most all 1971-73 Mercury and many other Ford cars starting in 1970. It only comes in black, the color can be changed with the appropriate color of interior paint. This is a near match to the originals that have become chalky over time. It does come with a texture, but the original texture is courser than these new plugs. Replaces Ford part number D0AB-62611B32.

Used bolts, and usually new washers. Coupe kit comes with 4 - "A" bolts, 4 "B" bolts, and 2 "D" bolts, 12 new washers. Kit fits all 1970-73 Mercury Cougar and Ford Mustang coupes. Coupes or hard tops will have shoulder belt hardware. We will make sure these original seat belt bolts are damage free and rust free. The gold finish will be degraded.  There were minor and major changes almost every year. We also have hundreds of used belts and belt sets that we cannot possibly list...

This is the plastic center piece you press down to release your seat belt on the 68 - 72 seat belts. It comes unbroken and without cracks. This button piece has original starburst decal, which will be faded and need replacing. Find the replacement decals here. Spring is included.

Used on the majority of Fords, this assembly can easily be removed without cutting or un-stitching the webbing. No rust, grade "A" show quality chrome, originally came stamped ROBBINS - JR - 7600 or HAMILL H-000. If you have a preference as to which version you would like just let us know in the memo box at checkout. Check out our video "All about seat belts" below. ...

This is the complete one piece seat belt buckle cover which comes with the face plate (with the round cutout for the push button) and the bezel all in one. This version is handy when you don't want to deal with multiple parts (as is the case with the separate face plate and bezel version). Simply remove your old cracked or broken cover, replace the metal spacer, and pop this cover into place and you're ready to go! You can use your existing spacer, or if you're missing one, you can find it...

This face plate fits inside the buckle bezel on the two piece type seat belt buckle cover. These plastic face plates are going to be free from cracks or breaks, and will still have some good texture to them. Keep in mind that although we don't reproduce the sponge dampener that's glued on the inside, most of these plates are going to be missing that piece, because after all......that dampener has been in there for up to 46 years! (this doesn't effect its useability). You can use your existing...

Used seat belt buckle bezel for the Mercury Cougar, Ford Mustang, or Ford Torino. This is the outer portion of the two piece seat belt buckle cover. This is a good replacement part if you want to keep your car original. These bezels will be free of cracks and breaks. Please specify which color you're looking for when ordering. Keep in mind that there are only a handful of colored buckles available, so we'll do our best to get you the color you need. Check out our video "All about seat belts"...

This is a general listing for anything and everything seat belt related. We can't go through and list every single seat belt part we have here, but chances are, we have what you need. If you're looking for used belts, all you have to do is call our seat belt guy (his name is Junior, at extension 209) and he'll go out in the warehouse and put together a set to match your needs and price range. We have everything from dirty old faded belts with minor rust on the chrome, to super nice, clean,...

This is the plastic center piece you press down to release your seat belt on the 68 - 72 seat belts. It comes unbroken and without cracks. This button piece has original decal with starburst design. Spring is included. Check out our video "All about seat belts" below.

When placing your order, be sure to leave a note as to which color you're looking for and we'll do our best to find them for you. Limited quantities available. This colored face plate fits inside the buckle bezel on the two piece type seat belt buckle cover. These plastic face plates are going to be free from cracks or breaks, and will still have some good texture to them. Keep in mind that although we don't reproduce the sponge dampener that's glued on the inside, most of these plates are...

These reproduction face plates fit inside the buckle bezel on the two piece type seat belt buckle cover. Sold as a pair. You can use your existing spacer, or if you're missing one, you can find it here. Check out our video "All about seat belts" below. ...

Now you can restore your 1968-72 Cougar or Mustang’s deluxe seat belt buckles back to their original showroom condition by replacing cracked, broken, or missing components with the new seat belt buckle restoration kit. Tooled to the original factory specifications from OEM quality injected molded black plastic. This seat belt buckle kit features the correct texture grain pattern and starburst medallions for a perfect restoration. The release button and spring are included. One kit does a pair...

Used spacer that fits inside your seat belt buckle and serves as a stop for when you assemble the metal buckle into the face plate/bezel. Installation is as shown in the pictures above.  Sold individually, one per buckle.