1981 Alfa Romeo GTV-6 Engine Parts

Engine:
2.5L V6

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.

Camshaft Seal

Brand Part Number Markets Notes Buy
AJUSA 15010900
🇺🇸 US 🇨🇦 CA
32 x 47 x 10Clockwise
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ELRING 325155
🇺🇸 US 🇨🇦 CA
Material: FPM (fluoride rubber)/ACM (polyacrylate rubber)
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ELRING 325156
🇺🇸 US 🇨🇦 CA
Material: FPM (fluoride rubber)Swirl Type: Alternating Twist
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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.

Conversion / Lower Gasket Set

Brand Part Number Markets Notes Buy
AJUSA 54011600
🇺🇸 US 🇨🇦 CA
Engine 016.46
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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.

Crankshaft Main Bearing

Brand Part Number Markets Notes Buy
KING ENGINE BEARINGS MB4101SI
🇺🇸 US 🇨🇦 CA
BI-Metal (aluminum silicon base)Set
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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.

Crankshaft Repair Sleeve

Brand Part Number Markets Notes Buy
NATIONAL Popular 99139
🇺🇸 US 🇨🇦 CA
Front
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WJB / INMOTION PARTS Popular WS99328
🇺🇸 US 🇨🇦 CA
Rear
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BCA NS99139
🇺🇸 US 🇨🇦 CA
Front
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TIMKEN KWK99139
🇺🇸 US 🇨🇦 CA
Kwik-Sleeve
Fitment notes — TIMKEN KWK99139
Kwik-Sleeve
Front
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TIMKEN KWK99328
🇺🇸 US 🇨🇦 CA
Kwik-Sleeve
Fitment notes — TIMKEN KWK99328
Kwik-Sleeve
Rear
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WJB / INMOTION PARTS WS99139
🇺🇸 US 🇨🇦 CA
Front
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This table covers the sleeves used to restore a grooved crankshaft seal surface.

Crankshaft Seal

Brand Part Number Markets Notes Buy
ELRING Popular 586676
🇺🇸 US 🇨🇦 CA
Material: FPM (fluoride rubber)Swirl Type: Right-hand Twist
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TIMKEN Popular 223520
🇺🇸 US 🇨🇦 CA
Front
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BCA NS223520
🇺🇸 US 🇨🇦 CA
Front
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NATIONAL 223520
🇺🇸 US 🇨🇦 CA
Front
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TIMKEN 228480
🇺🇸 US 🇨🇦 CA
Helix Type: Counter ClockwiseSeal Type: 74
Fitment notes — TIMKEN 228480
Helix Type: Counter ClockwiseSeal Type: 74Rear
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WJB / INMOTION PARTS WS223520
🇺🇸 US 🇨🇦 CA
Front
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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.

Cylinder Head Bolt

Brand Part Number Markets Notes Buy
AJUSA 81049800
🇺🇸 US 🇨🇦 CA
Engine 016.46
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This table covers the bolts that clamp the cylinder head to the block.

Cylinder Head Gasket

Brand Part Number Markets Notes Buy
AJUSA 10063800
🇺🇸 US 🇨🇦 CA
Left90 Bore Diameter
Fitment notes — AJUSA 10063800
Left90 Bore DiameterEngine 016.46
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AJUSA 10063700
🇺🇸 US 🇨🇦 CA
Right90 Bore Diameter
Fitment notes — AJUSA 10063700
Right90 Bore DiameterEngine 016.46
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AJUSA 52296600
🇺🇸 US 🇨🇦 CA
LeftEngine 016.46
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AJUSA 52296500
🇺🇸 US 🇨🇦 CA
RightEngine 016.46
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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.

Cylinder Head Gasket Set

Brand Part Number Markets Notes Buy
AJUSA 52036300
🇺🇸 US 🇨🇦 CA
Complete Set
Fitment notes — AJUSA 52036300
Complete Set
Engine 016.46
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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.

Cylinder Repair Sleeve

Brand Part Number Markets Notes Buy
AJUSA 60004300
🇺🇸 US 🇨🇦 CA
Engine 016.46
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This table covers the wear sleeves used to restore a Cylinder seal surface.

Engine Kit Gasket Set

Brand Part Number Markets Notes Buy
AJUSA 50042700
🇺🇸 US 🇨🇦 CA
Engine 016.46
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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.

Intake Manifold Gasket

Brand Part Number Markets Notes Buy
AJUSA 13020800
🇺🇸 US 🇨🇦 CA
Engine 016.46
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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.

Oil

Brand Part Number Markets Notes Buy
MOBIL 122377
🇺🇸 US 🇨🇦 CA
15W-50Mobil 1 Advanced
Fitment notes — MOBIL 122377
15W-50Mobil 1 AdvancedFull SyntheticSAE 15W-501 Quart
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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.

Oil Drain Plug Gasket

Brand Part Number Markets Notes Buy
AJUSA 22010200
🇺🇸 US 🇨🇦 CA
Engine 016.46with Original Equipment (OE) # 11317507432
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ELRING 128503
🇺🇸 US 🇨🇦 CA
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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.

Oil Filter

Economy

Brand Part Number Markets Notes Buy
BOSCH 72137WS
🇺🇸 US 🇨🇦 CA
Workshop Oil Filter
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FAMOUS BRAND 85189
🇺🇸 US 🇨🇦 CA
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PUROLATOR L20020
🇺🇸 US 🇨🇦 CA
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VARIOUS MFR PG4670
🇺🇸 US 🇨🇦 CA
Spin-On
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High Performance / Heavy Duty

Brand Part Number Markets Notes Buy
MOBIL Popular M1204A
🇺🇸 US 🇨🇦 CA
Extended Performance
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Standard Replacement

Brand Part Number Markets Notes Buy
ACDELCO Popular PF53
🇺🇸 US 🇨🇦 CA
Gold / Professional or Gold / Professional DurapackSpin-On
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BOSCH 3402
🇺🇸 US 🇨🇦 CA
Premium Oil Filter
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HASTINGS / BALDWIN LF423
🇺🇸 US 🇨🇦 CA
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VARIOUS MFR PG4670EX
🇺🇸 US 🇨🇦 CA
Extended LifeSpin-On
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WIX 51189
🇺🇸 US 🇨🇦 CA
Bypass Relief Valve Setting: 8-11 PSI
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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.

Oil Pan Gasket

Brand Part Number Markets Notes Buy
AJUSA 14037700
🇺🇸 US 🇨🇦 CA
Engine 016.46
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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.

Timing Belt

Economy

Brand Part Number Markets Notes Buy
CONTINENTAL CD120
🇺🇸 US 🇨🇦 CA
Mileage Maker
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Standard Replacement

Brand Part Number Markets Notes Buy
CONTINENTAL 40120
🇺🇸 US 🇨🇦 CA
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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.

Valve Cover Gasket

Brand Part Number Markets Notes Buy
AJUSA 56024600
🇺🇸 US 🇨🇦 CA
RightEngine 016.46
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AJUSA 56024700
🇺🇸 US 🇨🇦 CA
LeftEngine 016.46
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VICTOR REINZ 713578800
🇺🇸 US 🇨🇦 CA
Leftwith Engine code AR 01646
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VICTOR REINZ 713578700
🇺🇸 US 🇨🇦 CA
Rightwith Engine code AR 01646
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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.

Valve Stem Seal

Brand Part Number Markets Notes Buy
AJUSA 12004900
🇺🇸 US 🇨🇦 CA
7.5 x 11 x 9.5Engine 016.46
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AJUSA 57056300
🇺🇸 US 🇨🇦 CA
Engine 016.46
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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.

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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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.