The 1975 Fiat X-1/9 has 49 engine parts with verified fitment on this page — 13 part types and 22 brands, covering the 1.3L L4 engine. Each part includes a manufacturer part number and application notes.
On the 1975 Fiat X-1/9, 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 Expansion Plug (9 parts), Oil Filter (9 parts) and Crankshaft Seal (7 parts). The other 10 part types cover the remaining 24 parts.
The 1975 Fiat X-1/9 came with a single engine, the 1.3L L4, and every part is verified against it.
22 brands supply engine parts for the 1975 Fiat X-1/9, led by ITM ENGINE COMPONENTS (6 parts), NATIONAL (4 parts) and SCHAEFFLER (4 parts), plus 19 more brands. Quality grades include Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1975 Fiat X-1/9. 8 parts have it, including BCA NS223035 (Camshaft Seal) and NATIONAL 224025 (Crankshaft Seal). Each part number opens a page with every vehicle that part fits.
Camshaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL | 99114 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SCHAEFFLER | SR3463 | 🇺🇸 US 🇨🇦 CA | 11 MM Width35.56 mm Outside Diameter | View on Amazon |
| SKF | 99114 | 🇺🇸 US 🇨🇦 CA | Shaft Diameter: 1.181 In | View on Amazon |
| WJB / INMOTION PARTS | WS99114 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the wear sleeves used to restore a Camshaft seal surface.
4 Camshaft Repair Sleeve parts for the 1975 Fiat X-1/9 come from 4 brands — NATIONAL, SCHAEFFLER, SKF and 1 other brand.
Listed part numbers: NATIONAL 99114 and SCHAEFFLER SR3463, plus the other parts above.
Camshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA Popular | NS223035 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NATIONAL Popular | 223035 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ELRING | 212458 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| ITM ENGINE COMPONENTS | 1506303 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SCHAEFFLER | SS2287 | 🇺🇸 US 🇨🇦 CA | 2.05" I:D X 2.05" O.D. X 0.31" Width | View on Amazon |
| SKF | 11640 | 🇺🇸 US 🇨🇦 CA | 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.
6 Camshaft Seal parts for the 1975 Fiat X-1/9 come from 6 brands — BCA, NATIONAL, ELRING and 3 other brands. The "Popular" part is BCA NS223035.
Listed part numbers: BCA NS223035, NATIONAL 223035 and ELRING 212458, plus the other parts above.
Connecting Rod Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KING ENGINE BEARINGS | CR4099AM | 🇺🇸 US 🇨🇦 CA | SetBimetal (Aluminum Base) | View on Amazon |
| MAHLE / CLEVITE | CB1332A | 🇺🇸 US 🇨🇦 CA | 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.
2 Connecting Rod Bearing parts are listed for the 1975 Fiat X-1/9, from KING ENGINE BEARINGS and MAHLE / CLEVITE.
Part numbers include KING ENGINE BEARINGS CR4099AM and MAHLE / CLEVITE CB1332A.
Crankshaft Main Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ITM ENGINE COMPONENTS | 5M1442 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| SEALED POWER | 4659M | 🇺🇸 US 🇨🇦 CA | 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.
2 Crankshaft Main Bearing parts for the 1975 Fiat X-1/9 come from 2 brands — ITM ENGINE COMPONENTS and SEALED POWER.
This group includes ITM ENGINE COMPONENTS 5M1442 and SEALED POWER 4659M.
Crankshaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BCA | NS99157 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| NATIONAL | 99157 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| SCHAEFFLER | SR3483 | 🇺🇸 US 🇨🇦 CA | FrontFits Shaft Diameters of 1.572"-1.578" | View on Amazon |
| WJB / INMOTION PARTS | WS99157 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
This table covers the sleeves used to restore a grooved crankshaft seal surface.
4 Crankshaft Repair Sleeve parts for the 1975 Fiat X-1/9 come from 4 brands — 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 🇨🇦 CA | Front | View on Amazon |
| WJB / INMOTION PARTS Popular | WS224025 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| ELRING | 440780 | 🇺🇸 US 🇨🇦 CA | Material: ACM (Polyacrylate)Radial Shaft Seal Design: AwithBS | View on Amazon |
| ELRING | 059790 | 🇺🇸 US 🇨🇦 CA | Material: MVQ (Silicone Elastomer)Swirl Type: RD | View on Amazon |
| ELRING | 325007 | 🇺🇸 US 🇨🇦 CA | Material: ACM (Polyacrylate)Radial Shaft Seal Design: B | View on Amazon |
| ITM ENGINE COMPONENTS | 1506304 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| SCHAEFFLER | SS2642 | 🇺🇸 US 🇨🇦 CA | Front2.21" O.D. X 0.28" Width | 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.
7 Crankshaft Seal parts for the 1975 Fiat X-1/9 come from 5 brands — ELRING, NATIONAL, WJB / INMOTION PARTS and 2 other brands. The "Popular" part is NATIONAL 224025.
Listed part numbers: NATIONAL 224025, WJB / INMOTION PARTS WS224025 and ELRING 440780, plus the other parts above.
Cylinder Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MELLING | CSL804 | 🇺🇸 US 🇨🇦 CA | 3/32 IN Wall Thickness | View on Amazon |
| MELLING | CSL904 | 🇺🇸 US 🇨🇦 CA | 1/8 IN Wall Thickness | View on Amazon |
This table covers the wear sleeves used to restore a Cylinder seal surface.
MELLING supplies both parts for the 1975 Fiat X-1/9.
This group includes MELLING CSL804 and MELLING CSL904.
Engine Block Heater
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KAT'S HEATERS | 11401 | 🇺🇸 US 🇨🇦 CA | Freeze Plug Heater | View on Amazon |
This table covers the block heaters that warm the coolant or oil in cold weather.
This group shows a single part: KAT'S HEATERS 11401.
Exhaust Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ITM ENGINE COMPONENTS | RX34497 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the exhaust valves that let combustion gas out of the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.
This group shows a single part: ITM ENGINE COMPONENTS RX34497.
Expansion Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular | 555027 | 🇺🇸 US 🇨🇦 CA | Nominal Dia.: 38.25mmMetric Dia. | View on Amazon |
| DORMAN Popular | 565027 | 🇺🇸 US 🇨🇦 CA | Nominal Dia.: 38.25mmMetric Dia. | View on Amazon |
| DORMAN | 568009 | 🇺🇸 US 🇨🇦 CA | Standard Size: 1-1/2"Metric Size: 38.5mm | View on Amazon |
| MELLING | MPE152R | 🇺🇸 US 🇨🇦 CA | Steel | View on Amazon |
| PIONEER | PE152R | 🇺🇸 US 🇨🇦 CA | Steel | View on Amazon |
| PIONEER | PE152BR | 🇺🇸 US 🇨🇦 CA | Brass or Steel | View on Amazon |
| PIONEER | PE152B | 🇺🇸 US 🇨🇦 CA | Brass | View on Amazon |
| QUALCAST | 9736 | 🇺🇸 US 🇨🇦 CA | Steel | View on Amazon |
| QUALCAST | 9736B | 🇺🇸 US 🇨🇦 CA | Brass | View on Amazon |
This table covers the Expansion plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes.
9 Expansion Plug parts are listed for the 1975 Fiat X-1/9, from DORMAN, PIONEER, QUALCAST and 1 other brand. DORMAN 555027 carries the "Popular" badge.
This group includes DORMAN 555027, DORMAN 565027 and DORMAN 568009 and the remaining parts above.
Intake Valve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ITM ENGINE COMPONENTS | RV34496 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the intake valves that let air (and fuel, on port-injected engines) into the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one.
This group shows a single part: ITM ENGINE COMPONENTS RV34496.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VARIOUS MFR Popular | PG4670 | 🇺🇸 US 🇨🇦 CA | Spin-On | View on Amazon |
| BOSCH | 72137WS | 🇺🇸 US 🇨🇦 CA | Workshop Oil Filter | View on Amazon |
| FAMOUS BRAND | 85189 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PUROLATOR | L20020 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | PF53 | 🇺🇸 US 🇨🇦 CA | Gold / Professional or Gold / Professional DurapackSpin-On | View on Amazon |
| BOSCH | 3402 | 🇺🇸 US 🇨🇦 CA | Premium Oil Filter | View on Amazon |
| HASTINGS / BALDWIN | LF423 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VARIOUS MFR | PG4670EX | 🇺🇸 US 🇨🇦 CA | Extended LifeSpin-On | View on Amazon |
| WIX | 51189 | 🇺🇸 US 🇨🇦 CA | 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.
9 Oil Filter parts for the 1975 Fiat X-1/9 come from 7 brands — VARIOUS MFR, BOSCH, FAMOUS BRAND and 4 other brands. The "Popular" part is VARIOUS MFR PG4670.
The Economy section lists 4 options from VARIOUS MFR, BOSCH, FAMOUS BRAND and 1 other brand — the catalog's value-priced group. VARIOUS MFR PG4670 is listed in this group.
In the Standard Replacement grade, ACDELCO, BOSCH, HASTINGS / BALDWIN and 2 other brands supply 5 parts: built to original-equipment specification. A representative part number is ACDELCO PF53.
This group includes VARIOUS MFR PG4670, BOSCH 72137WS and FAMOUS BRAND 85189 and the remaining parts above.
Oil Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ITM ENGINE COMPONENTS | 0996301 | 🇺🇸 US 🇨🇦 CA | 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.
This group shows a single part: ITM ENGINE COMPONENTS 0996301.
Buying Engine Parts for a 1975 Fiat X-1/9
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 1.3L 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: Expansion Plug and Oil Filter .
Frequently Asked Questions
How many engine parts fit the 1975 Fiat X-1/9?
Our catalog currently lists 49 engine parts for the 1975 Fiat X-1/9 across 13 subcategories and 22 brands, covering the 1.3L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of engine problems on a 1975 Fiat X-1/9?
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 1975 Fiat X-1/9 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 1975 Fiat X-1/9?
Every part on this page is matched to the 1.3L 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 1975 Fiat X-1/9
Engine Parts for Other Fiat X-1/9 Years
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