The 1981 Alfa Romeo GTV-6 has 48 engine parts with verified fitment on this page — 18 part types and 17 brands, covering the 2.5L V6 engine. Each part includes a manufacturer part number and application notes.
On the 1981 Alfa Romeo GTV-6, 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. 22 parts of the 48 listed are Oil Filter (10 parts), Crankshaft Repair Sleeve (6 parts) and Crankshaft Seal (6 parts). The other 15 part types cover the remaining 26 parts.
Every part on this page is matched to the 2.5L V6 — the only engine offered in the 1981 Alfa Romeo GTV-6.
The most listed brands for 1981 Alfa Romeo GTV-6 engine parts are AJUSA (17 parts), ELRING (4 parts) and TIMKEN (4 parts), plus 14 more brands. Quality grades include Standard Replacement, Economy and High Performance / Heavy Duty.
6 parts on this 1981 Alfa Romeo GTV-6 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including NATIONAL 99139 (Crankshaft Repair Sleeve) and ELRING 586676 (Crankshaft Seal). Click any part number to see every vehicle that part fits.
Camshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 15010900 | 🇺🇸 US 🇨🇦 CA | 32 x 47 x 10Clockwise | View on Amazon |
| ELRING | 325155 | 🇺🇸 US 🇨🇦 CA | Material: FPM (fluoride rubber)/ACM (polyacrylate rubber) | View on Amazon |
| ELRING | 325156 | 🇺🇸 US 🇨🇦 CA | Material: FPM (fluoride rubber)Swirl Type: Alternating Twist | 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.
3 Camshaft Seal parts are listed for the 1981 Alfa Romeo GTV-6, from ELRING and AJUSA.
This group includes AJUSA 15010900, ELRING 325155 and ELRING 325156.
Conversion / Lower Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 54011600 | 🇺🇸 US 🇨🇦 CA | Engine 016.46 | 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 54011600.
Crankshaft Main Bearing
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KING ENGINE BEARINGS | MB4101SI | 🇺🇸 US 🇨🇦 CA | BI-Metal (aluminum silicon base)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 1981 Alfa Romeo GTV-6 — KING ENGINE BEARINGS MB4101SI.
Crankshaft Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NATIONAL Popular | 99139 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| WJB / INMOTION PARTS Popular | WS99328 | 🇺🇸 US 🇨🇦 CA | Rear | View on Amazon |
| BCA | NS99139 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| TIMKEN | KWK99139 | 🇺🇸 US 🇨🇦 CA | Kwik-Sleeve | View on Amazon |
| TIMKEN | KWK99328 | 🇺🇸 US 🇨🇦 CA | Kwik-Sleeve | View on Amazon |
| WJB / INMOTION PARTS | WS99139 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
This table covers the sleeves used to restore a grooved crankshaft seal surface.
6 Crankshaft Repair Sleeve parts are listed for the 1981 Alfa Romeo GTV-6, from WJB / INMOTION PARTS, TIMKEN, NATIONAL and 1 other brand. NATIONAL 99139 carries the "Popular" badge.
Listed part numbers: NATIONAL 99139, WJB / INMOTION PARTS WS99328 and BCA NS99139, plus the other parts above.
Crankshaft Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Popular | 586676 | 🇺🇸 US 🇨🇦 CA | Material: FPM (fluoride rubber)Swirl Type: Right-hand Twist | View on Amazon |
| TIMKEN Popular | 223520 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| BCA | NS223520 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| NATIONAL | 223520 | 🇺🇸 US 🇨🇦 CA | Front | View on Amazon |
| TIMKEN | 228480 | 🇺🇸 US 🇨🇦 CA | Helix Type: Counter ClockwiseSeal Type: 74 | View on Amazon |
| WJB / INMOTION PARTS | WS223520 | 🇺🇸 US 🇨🇦 CA | 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.
6 Crankshaft Seal parts are listed for the 1981 Alfa Romeo GTV-6, from TIMKEN, ELRING, BCA and 2 other brands. ELRING 586676 carries the "Popular" badge.
This group includes ELRING 586676, TIMKEN 223520 and BCA NS223520 and the remaining parts above.
Cylinder Head Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 81049800 | 🇺🇸 US 🇨🇦 CA | Engine 016.46 | View on Amazon |
This table covers the bolts that clamp the cylinder head to the block.
This group shows a single part: AJUSA 81049800.
Cylinder Head Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 10063800 | 🇺🇸 US 🇨🇦 CA | Left90 Bore Diameter | View on Amazon |
| AJUSA | 10063700 | 🇺🇸 US 🇨🇦 CA | Right90 Bore Diameter | View on Amazon |
| AJUSA | 52296600 | 🇺🇸 US 🇨🇦 CA | LeftEngine 016.46 | View on Amazon |
| AJUSA | 52296500 | 🇺🇸 US 🇨🇦 CA | RightEngine 016.46 | 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.
4 Cylinder Head Gasket parts for the 1981 Alfa Romeo GTV-6 come from AJUSA.
Part numbers include AJUSA 10063800, AJUSA 10063700 and AJUSA 52296600, among others listed above.
Cylinder Head Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 52036300 | 🇺🇸 US 🇨🇦 CA | Complete Set | 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 52036300.
Cylinder Repair Sleeve
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 60004300 | 🇺🇸 US 🇨🇦 CA | Engine 016.46 | View on Amazon |
This table covers the wear sleeves used to restore a Cylinder seal surface.
This group shows a single part: AJUSA 60004300.
Engine Kit Gasket Set
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 50042700 | 🇺🇸 US 🇨🇦 CA | Engine 016.46 | 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 50042700.
Intake Manifold Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 13020800 | 🇺🇸 US 🇨🇦 CA | Engine 016.46 | View on Amazon |
This table covers the gaskets between the intake manifold and 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 13020800.
Oil
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL | 122377 | 🇺🇸 US 🇨🇦 CA | 15W-50Mobil 1 Advanced | View on Amazon |
This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable.
One part is listed for the 1981 Alfa Romeo GTV-6 — MOBIL 122377.
Oil Drain Plug Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 22010200 | 🇺🇸 US 🇨🇦 CA | Engine 016.46with Original Equipment (OE) # 11317507432 | View on Amazon |
| ELRING | 128503 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the crush washers and gaskets under the oil drain plug. 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.
2 Oil Drain Plug Gasket parts for the 1981 Alfa Romeo GTV-6 come from 2 brands — AJUSA and ELRING.
This group includes AJUSA 22010200 and ELRING 128503.
Oil Filter
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| 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 | |
| VARIOUS MFR | PG4670 | 🇺🇸 US 🇨🇦 CA | Spin-On | View on Amazon |
High Performance / Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOBIL Popular | M1204A | 🇺🇸 US 🇨🇦 CA | Extended Performance | 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 | 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.
10 Oil Filter parts are listed for the 1981 Alfa Romeo GTV-6, from BOSCH, VARIOUS MFR, FAMOUS BRAND and 5 other brands. MOBIL M1204A carries the "Popular" badge.
In the Economy grade, BOSCH, FAMOUS BRAND, PUROLATOR and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is BOSCH 72137WS.
In the High Performance / Heavy Duty grade, MOBIL supplies 1 part: grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. A representative part number is MOBIL M1204A.
The Standard Replacement section lists 5 options from ACDELCO, BOSCH, HASTINGS / BALDWIN and 2 other brands — built to original-equipment specification. ACDELCO PF53 is listed in this group.
Oil Pan Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 14037700 | 🇺🇸 US 🇨🇦 CA | Engine 016.46 | 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 1981 Alfa Romeo GTV-6 — AJUSA 14037700.
Timing Belt
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL | CD120 | 🇺🇸 US 🇨🇦 CA | Mileage Maker | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CONTINENTAL | 40120 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Timing belts. Typical signs include squeal on cold start, cracked ribs, or glazing. Spin the tensioner and idlers by hand while the belt is off.
2 Timing Belt parts for the 1981 Alfa Romeo GTV-6 come from CONTINENTAL.
The Economy section: 1 option from CONTINENTAL. CONTINENTAL CD120 is listed in this group.
Standard Replacement: 1 part, from CONTINENTAL. A representative part number is CONTINENTAL 40120.
This group includes CONTINENTAL CD120 and CONTINENTAL 40120.
Valve Cover Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 56024600 | 🇺🇸 US 🇨🇦 CA | RightEngine 016.46 | View on Amazon |
| AJUSA | 56024700 | 🇺🇸 US 🇨🇦 CA | LeftEngine 016.46 | View on Amazon |
| VICTOR REINZ | 713578800 | 🇺🇸 US 🇨🇦 CA | Leftwith Engine code AR 01646 | View on Amazon |
| VICTOR REINZ | 713578700 | 🇺🇸 US 🇨🇦 CA | Rightwith Engine code AR 01646 | 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.
4 Valve Cover Gasket parts are listed for the 1981 Alfa Romeo GTV-6, from AJUSA and VICTOR REINZ.
Listed part numbers: AJUSA 56024600, AJUSA 56024700 and VICTOR REINZ 713578800, plus the other parts above.
Valve Stem Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA | 12004900 | 🇺🇸 US 🇨🇦 CA | 7.5 x 11 x 9.5Engine 016.46 | View on Amazon |
| AJUSA | 57056300 | 🇺🇸 US 🇨🇦 CA | Engine 016.46 | 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.
AJUSA supplies both parts for the 1981 Alfa Romeo GTV-6.
This group includes AJUSA 12004900 and AJUSA 57056300.
Buying Engine Parts for a 1981 Alfa Romeo GTV-6
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 2.5L V6 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: Oil Filter and Crankshaft Repair Sleeve .
Frequently Asked Questions
How many engine parts fit the 1981 Alfa Romeo GTV-6?
Our catalog currently lists 48 engine parts for the 1981 Alfa Romeo GTV-6 across 18 subcategories and 17 brands, covering the 2.5L V6 engine. Each part is matched to the engine(s) it fits.
What are the signs of engine problems on a 1981 Alfa Romeo GTV-6?
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 oil viscosity is listed for the 1981 Alfa Romeo GTV-6?
Oil rows on this page include SAE 15W-50. Confirm the engine and the weight on the filler cap before you buy — high-mileage and standard fills can differ.
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 1981 Alfa Romeo GTV-6 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 1981 Alfa Romeo GTV-6?
Every part on this page is matched to the 2.5L V6 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 1981 Alfa Romeo GTV-6
Engine Parts for Other Alfa Romeo GTV-6 Years
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