This page lists 35 engine parts for the 1966 Fiat 124, across 16 part types, covering the 1.2L L4 engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 1966 Fiat 124, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. Most of the listed parts are Crankshaft Seal (5 parts), Crankshaft Repair Sleeve (4 parts) and Oil Filter (4 parts). The other 13 part types cover the remaining 22 parts.
Every part on this page is matched to the 1.2L L4 — the only engine offered in the 1966 Fiat 124.
The most listed brands for 1966 Fiat 124 engine parts are AJUSA (10 parts), NATIONAL (4 parts) and WJB / INMOTION PARTS (3 parts), plus 9 more brands.
1 part on this 1966 Fiat 124 page carries a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — NATIONAL 224025 (Crankshaft Seal). Click any part number to see every vehicle that part fits.
Camshaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL | 99114 | 🇺🇸 US | View on Amazon | |
| SCHAEFFLER | SR3463 | 🇺🇸 US | 11 MM Width35.56 mm Outside Diameter | View on Amazon |
| WJB / INMOTION PARTS | WS99114 | 🇺🇸 US | View on Amazon |
This table covers the wear sleeves used to restore a Camshaft seal surface.
3 Camshaft Repair Sleeve parts are listed for the 1966 Fiat 124, from NATIONAL, SCHAEFFLER and WJB / INMOTION PARTS.
Part numbers include NATIONAL 99114, SCHAEFFLER SR3463 and WJB / INMOTION PARTS WS99114.
Camshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NS223035 | 🇺🇸 US | View on Amazon | |
| NATIONAL | 223035 | 🇺🇸 US | View on Amazon |
This table covers the seals at each camshaft end. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
2 Camshaft Seal parts are listed for the 1966 Fiat 124, from BCA and NATIONAL.
Listed part numbers: BCA NS223035 and NATIONAL 223035.
Connecting Rod Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KING ENGINE BEARINGS | CR4099AM | 🇺🇸 US | SetBI-Metal (aluminum base) | View on Amazon |
| KING ENGINE BEARINGS | CR4099XP | 🇺🇸 US | SetBI-Metal (aluminum base) | View on Amazon |
| MAHLE / CLEVITE | CB1332A | 🇺🇸 US | A Series (Aluminum)Pair | View on Amazon |
This table covers the bearings in the connecting-rod big ends. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
3 Connecting Rod Bearing parts for the 1966 Fiat 124 come from 2 brands — KING ENGINE BEARINGS and MAHLE / CLEVITE.
This group includes KING ENGINE BEARINGS CR4099AM, KING ENGINE BEARINGS CR4099XP and MAHLE / CLEVITE CB1332A.
Conversion / Lower Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 54013400 | 🇺🇸 US | View on Amazon |
This table covers lower / conversion gasket sets for oil-pan and related joints. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
This group shows a single part: AJUSA 54013400.
Crankshaft Main Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SEALED POWER | 4659M | 🇺🇸 US | Set | View on Amazon |
This table covers the main bearings that support the crankshaft in the block. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly.
One part is listed for the 1966 Fiat 124 — SEALED POWER 4659M.
Crankshaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NS99157 | 🇺🇸 US | Front | View on Amazon |
| NATIONAL | 99157 | 🇺🇸 US | Front | View on Amazon |
| SCHAEFFLER | SR3483 | 🇺🇸 US | FrontFits Shaft Diameters of 1.572"-1.578" | View on Amazon |
| WJB / INMOTION PARTS | WS99157 | 🇺🇸 US | Front | View on Amazon |
This table covers the sleeves used to restore a grooved crankshaft seal surface.
4 Crankshaft Repair Sleeve parts are listed for the 1966 Fiat 124, from BCA, NATIONAL, SCHAEFFLER and 1 other brand.
Part numbers include BCA NS99157, NATIONAL 99157 and SCHAEFFLER SR3483, among others listed above.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 224025 | 🇺🇸 US | Front | View on Amazon |
| AJUSA | 15033000 | 🇺🇸 US | RearCounter Clockwise | View on Amazon |
| ELRING | 513326 | 🇺🇸 US | Swirl Type: Left-hand Twist | View on Amazon |
| ELRING | 059790 | 🇺🇸 US | Material: MVQ (Silicone Elastomer)Swirl Type: RD | View on Amazon |
| WJB / INMOTION PARTS | WS224025 | 🇺🇸 US | Front | View on Amazon |
This table covers the front and rear seals that keep oil in at the crankshaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
5 Crankshaft Seal parts are listed for the 1966 Fiat 124, from ELRING, NATIONAL, AJUSA and 1 other brand. NATIONAL 224025 carries the "Popular" badge.
This group includes NATIONAL 224025, AJUSA 15033000 and ELRING 513326 and the remaining parts above.
Cylinder Head Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 10033800 | 🇺🇸 US | 78 Bore Diameter | View on Amazon |
This table covers the head gaskets that seal the block to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
This group shows a single part: AJUSA 10033800.
Cylinder Head Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 52004800 | 🇺🇸 US | View on Amazon |
This table covers multi-piece gasket sets for a cylinder-head job. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
This group shows a single part: AJUSA 52004800.
Cylinder Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING | CSL607 | 🇺🇸 US | 3/32 IN Wall Thickness | View on Amazon |
| MELLING | CSL707 | 🇺🇸 US | 1/8 IN Wall Thickness | View on Amazon |
This table covers the wear sleeves used to restore a Cylinder seal surface.
2 Cylinder Repair Sleeve parts for the 1966 Fiat 124 come from MELLING.
Part numbers include MELLING CSL607 and MELLING CSL707.
Engine Kit Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 50016400 | 🇺🇸 US | View on Amazon |
This table covers full gasket kits covering the joints opened in an engine rebuild. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
This group shows a single part: AJUSA 50016400.
Intake & Exhaust Manifold Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 13027200 | 🇺🇸 US | View on Amazon |
This table covers the Intake & Exhaust Manifold gasket sets. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration.
This group shows a single part: AJUSA 13027200.
Oil Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | PF53 | 🇺🇸 US 🇨🇦 CA | Gold / Professional or Gold / Professional DurapackSpin-On | View on Amazon |
| MAHLE / CLEVITE | OC23 | 🇺🇸 US | View on Amazon | |
| MAHLE / CLEVITE | OC236 | 🇺🇸 US | View on Amazon | |
| WIX | 51189 | 🇺🇸 US | Bypass Relief Valve Setting: 8-11 PSI | View on Amazon |
This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive.
4 Oil Filter parts are listed for the 1966 Fiat 124, from MAHLE / CLEVITE, ACDELCO and WIX.
Listed part numbers: ACDELCO PF53, MAHLE / CLEVITE OC23 and MAHLE / CLEVITE OC236, plus the other parts above.
Oil Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 14029900 | 🇺🇸 US | View on Amazon |
This table covers the gaskets between the oil pan and the block. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
One part is listed for the 1966 Fiat 124 — AJUSA 14029900.
Valve Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 11018100 | 🇺🇸 US | View on Amazon |
This table covers the gaskets that seal the valve cover to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
One part is listed for the 1966 Fiat 124 — AJUSA 11018100.
Valve Stem Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 12004500 | 🇺🇸 US | 7 x 10.5 x 10.5 | View on Amazon |
| AJUSA | 57004900 | 🇺🇸 US | View on Amazon | |
| ELRING | 197378 | 🇺🇸 US | Material: ACM (Polyacrylate) | View on Amazon |
| SEALED POWER | ST2039 | 🇺🇸 US | Rubber | View on Amazon |
This table covers the seals on each valve stem that control oil into the guides. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
4 Valve Stem Seal parts are listed for the 1966 Fiat 124, from AJUSA, ELRING and SEALED POWER.
Part numbers include AJUSA 12004500, AJUSA 57004900 and ELRING 197378, among others listed above.
Buying Engine Parts for a 1966 Fiat 124
On this vehicle, the engine covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components.
- Confirm you have the 1.2L L4 engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Crankshaft Seal and Crankshaft Repair Sleeve .
Frequently Asked Questions
How many engine parts fit the 1966 Fiat 124?
Our catalog currently lists 35 engine parts for the 1966 Fiat 124 across 16 subcategories and 12 brands, covering the 1.2L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of engine problems on a 1966 Fiat 124?
Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 1966 Fiat 124 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 1966 Fiat 124?
Every part on this page is matched to the 1.2L L4 engine. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1966 Fiat 124
Engine Parts for Other Fiat 124 Years
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