1976 Checker Marathon Engine Parts

Engine:

Showing parts for every engine. Select an engine to see only what fits.

120 Engine parts are listed for the 1976 Checker Marathon, in 32 part types, covering both the 4.1L 250cid L6 and the 5.7L 350cid V8. Each one has a brand, a manufacturer part number and notes that say where it fits.

The engine on the 1976 Checker Marathon covers the internals and hard parts that build compression and keep oil where it belongs — gaskets, bearings, camshafts, lifters, seals and timing components. The largest groups are Crankshaft Seal (13 parts), Oil Filter (9 parts) and Timing Cam Sprocket (7 parts). The other 29 part types cover the remaining 91 parts.

Camshaft Bearing

Brand Part Number Markets Notes Buy
DURA-BOND Fits: 4.1L 250cid L6 CH11
🇺🇸 US 🇨🇦 CA
Late Models
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DURA-BOND Fits: 4.1L 250cid L6 CH11B
🇺🇸 US 🇨🇦 CA
(Special Oil Control Set with OD Groove)
Fitment notes — DURA-BOND CH11B
(Special Oil Control Set with OD Groove)
Late Models
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This table covers the Camshaft bearings. 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.

Connecting Rod Bearing

Brand Part Number Markets Notes Buy
KING ENGINE BEARINGS Fits: 4.1L 250cid L6 CR624SI
🇺🇸 US 🇨🇦 CA
SetBimetal (Aluminum Silicon Base)
Fitment notes — KING ENGINE BEARINGS CR624SI
SetBimetal (Aluminum Silicon Base)
Standard
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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.

Connecting Rod Bolt

Brand Part Number Markets Notes Buy
ARP Fits: 4.1L 250cid L6 1346001
🇺🇸 US 🇨🇦 CA
Small Journal 11/32"
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This table covers the Connecting Rod bolts.

Conversion / Lower Gasket Set

Brand Part Number Markets Notes Buy
FEL-PRO Fits: 4.1L 250cid L6 CS80062
🇺🇸 US 🇨🇦 CA
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VICTOR REINZ Fits: 4.1L 250cid L6 081111701
🇺🇸 US 🇨🇦 CA
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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 Fits: 4.1L 250cid L6 MB752SI
🇺🇸 US 🇨🇦 CA
SetBimetal (Aluminum Silicon Base)
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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 Fits: 4.1L 250cid L6 99176
🇺🇸 US 🇨🇦 CA
Front0.563 IN Width
Fitment notes — NATIONAL 99176
Front0.563 IN Width2.063 IN Outside Diameter
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TIMKEN Fits: 4.1L 250cid L6 KWK99176
🇺🇸 US 🇨🇦 CA
Kwik-Sleeve
Fitment notes — TIMKEN KWK99176
Kwik-Sleeve
Front
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WJB / INMOTION PARTS Fits: 4.1L 250cid L6 WS99176
🇺🇸 US 🇨🇦 CA
Installation Depth: 0.81299999999999994 InShaft Diameter Minimum (In): 1.7609999999999999 In
Fitment notes — WJB / INMOTION PARTS WS99176
Installation Depth: 0.81299999999999994 InShaft Diameter Minimum (In): 1.7609999999999999 InShaft Maximum Diameter (In): 1.7669999999999999 InFront
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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
FEL-PRO Popular Fits: 4.1L 250cid L6 BS118291
🇺🇸 US 🇨🇦 CA
Rubber
Fitment notes — FEL-PRO BS118291
Rubber
RearTwo PieceOffset double lip
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NATIONAL Popular Fits: 4.1L 250cid L6 9845
🇺🇸 US 🇨🇦 CA
Front0.375 IN Width
Fitment notes — NATIONAL 9845
Front0.375 IN Width2.416 IN Outside Diameter
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TIMKEN Popular Fits: 4.1L 250cid L6 9845
🇺🇸 US 🇨🇦 CA
Front
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BCA Fits: 4.1L 250cid L6 NS9845
🇺🇸 US 🇨🇦 CA
Front0.375 IN Width
Fitment notes — BCA NS9845
Front0.375 IN Width2.42 IN Outside Diameter
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 JV1627
🇺🇸 US 🇨🇦 CA
RubberSet
Fitment notes — MAHLE / CLEVITE JV1627
RubberSet
2 Piece, Lip Relocator TypeRear
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 JV1718
🇺🇸 US 🇨🇦 CA
Set
Fitment notes — MAHLE / CLEVITE JV1718
Set
2 Piece, Lip Relocator TypeRear
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NATIONAL Fits: 4.1L 250cid L6 5092
🇺🇸 US 🇨🇦 CA
RearSplit Type
Fitment notes — NATIONAL 5092
RearSplit Type0.325 IN Width3.03 IN Outside Diameter
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SCHAEFFLER Fits: 4.1L 250cid L6 SS2784
🇺🇸 US 🇨🇦 CA
Front9.53 mm Width
Fitment notes — SCHAEFFLER SS2784
Front9.53 mm Width61.3 mm Outside DiameterLate44.78 mm Shaft Diameter
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SCHAEFFLER Fits: 4.1L 250cid L6 SR3932
🇺🇸 US 🇨🇦 CA
Late
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VICTOR REINZ Fits: 4.1L 250cid L6 191006901
🇺🇸 US 🇨🇦 CA
Set
Fitment notes — VICTOR REINZ 191006901
Set
RearOffset double lip
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VICTOR REINZ Fits: 4.1L 250cid L6 191011601
🇺🇸 US 🇨🇦 CA
SetRubber
Fitment notes — VICTOR REINZ 191011601
SetRubber
RearOffset double lip2 Piece
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WJB / INMOTION PARTS Fits: 4.1L 250cid L6 WS5092
🇺🇸 US 🇨🇦 CA
Housing Bore: 3 InMaterial: Silicone
Fitment notes — WJB / INMOTION PARTS WS5092
Housing Bore: 3 InMaterial: Silicone
RearSplit Type
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WJB / INMOTION PARTS Fits: 4.1L 250cid L6 WS9845
🇺🇸 US 🇨🇦 CA
Housing Bore: 2.4089999999999998 InInside Diameter: 1.7629999999999999 In
Fitment notes — WJB / INMOTION PARTS WS9845
Housing Bore: 2.4089999999999998 InInside Diameter: 1.7629999999999999 InThickness: 0.375 InFront
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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 Gasket

Brand Part Number Markets Notes Buy
FEL-PRO Fits: 4.1L 250cid L6 8006PT
🇺🇸 US 🇨🇦 CA
Permatorque
Fitment notes — FEL-PRO 8006PT
Permatorque
with Separate Head and Intake Manifold
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FEL-PRO Fits: 4.1L 250cid L6 8501PT1
🇺🇸 US 🇨🇦 CA
with Integral Head
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 3829
🇺🇸 US 🇨🇦 CA
Composite
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VICTOR REINZ Fits: 4.1L 250cid L6 611055200
🇺🇸 US 🇨🇦 CA
with Integral Cylinder Head & Manifold
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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
FEL-PRO Popular Fits: 4.1L 250cid L6 HS8006PT1
🇺🇸 US 🇨🇦 CA
PermatorqueIncludes Valve Stem Seals
Fitment notes — FEL-PRO HS8006PT1
PermatorqueIncludes Valve Stem Seals
with Separate Head and Intake Manifold
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FEL-PRO Fits: 4.1L 250cid L6 HS8501PT3
🇺🇸 US 🇨🇦 CA
Includes Valve Stem Seals
Fitment notes — FEL-PRO HS8501PT3
Includes Valve Stem Seals
with Integral Head
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 HS1185E
🇺🇸 US 🇨🇦 CA
Includes Valve Stem Seals
Fitment notes — MAHLE / CLEVITE HS1185E
Includes Valve Stem Seals
with Separate Head & Manifold
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VICTOR REINZ Fits: 4.1L 250cid L6 021007801
🇺🇸 US 🇨🇦 CA
with Separate Head & Manifold
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VICTOR REINZ Fits: 4.1L 250cid L6 021026001
🇺🇸 US 🇨🇦 CA
with Integral Cylinder Head & Manifold
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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 Head Plug

Brand Part Number Markets Notes Buy
DORMAN Fits: 4.1L 250cid L6 116201
🇺🇸 US 🇨🇦 CA
1/4"-28
Fitment notes — DORMAN 116201
1/4"-28
Cylinder Head Freeze Plug7/8"
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This table covers the Cylinder Head 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.

Engine Kit Gasket Set

Brand Part Number Markets Notes Buy
FEL-PRO Fits: 4.1L 250cid L6 FS8006PT4
🇺🇸 US 🇨🇦 CA
Overhaul SetPermatorque
Fitment notes — FEL-PRO FS8006PT4
Overhaul SetPermatorque
with Separate Head and Intake Manifold
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 953000
🇺🇸 US 🇨🇦 CA
Full Gasket Set
Fitment notes — MAHLE / CLEVITE 953000
Full Gasket Set
without INTEGRAL HEAD
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 953044
🇺🇸 US 🇨🇦 CA
Full Gasket Set
Fitment notes — MAHLE / CLEVITE 953044
Full Gasket Set
with Integral Head
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VICTOR REINZ Fits: 4.1L 250cid L6 011004001
🇺🇸 US 🇨🇦 CA
with Separate Head & Manifold
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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.

Harmonic Balancer Repair Sleeve

Brand Part Number Markets Notes Buy
MAHLE / CLEVITE Popular Fits: 4.1L 250cid L6 A228
🇺🇸 US 🇨🇦 CA
Nickel Plated Formed Steel
Fitment notes — MAHLE / CLEVITE A228
Nickel Plated Formed Steel
0.013 IN Thickness
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NATIONAL Popular Fits: 4.1L 250cid L6 88176
🇺🇸 US 🇨🇦 CA
Except flange tear line
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BCA Fits: 4.1L 250cid L6 NS5000
🇺🇸 US 🇨🇦 CA
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FEL-PRO Fits: 4.1L 250cid L6 16202
🇺🇸 US 🇨🇦 CA
Use with Installation Tool
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NATIONAL Fits: 4.1L 250cid L6 5000
🇺🇸 US 🇨🇦 CA
KitNitrile
Fitment notes — NATIONAL 5000
KitNitrile
Except flange tear line
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VICTOR REINZ Fits: 4.1L 250cid L6 711347500
🇺🇸 US 🇨🇦 CA
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This table covers the wear sleeves used to restore a Harmonic Balancer seal surface.

Intake & Exhaust Manifold Gasket Set

Brand Part Number Markets Notes Buy
FEL-PRO Fits: 4.1L 250cid L6 MS9786
🇺🇸 US 🇨🇦 CA
with Separate Head and Intake Manifoldwith Rectangular Exhaust Ports
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 MS16033X
🇺🇸 US 🇨🇦 CA
Perforated Steel
Fitment notes — MAHLE / CLEVITE MS16033X
Perforated Steel
with Separate Head & Manifold
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 MS203
🇺🇸 US 🇨🇦 CA
Intake and Exhaust Gasket SetSeparate Head & Intake Manifold
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VICTOR REINZ Fits: 4.1L 250cid L6 711473000
🇺🇸 US 🇨🇦 CA
with Separate Head & Manifold
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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.

Intake to Exhaust Gasket

Brand Part Number Markets Notes Buy
VICTOR REINZ Fits: 4.1L 250cid L6 711349200
🇺🇸 US 🇨🇦 CA
with Separate Head & Manifold
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This table covers the gaskets that seal the Intake to Exhaust. 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 Drain Plug

Brand Part Number Markets Notes Buy
AGS Fits: 4.1L 250cid L6 ODP00016
🇺🇸 US 🇨🇦 CA
1/2-20
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DORMAN Fits: 4.1L 250cid L6 090052
🇺🇸 US 🇨🇦 CA
Pilot PointThread Size
Fitment notes — DORMAN 090052
Pilot PointThread Size1/2"-20Head Size: 9/16"
1/2" x 20 Thread9/16" Head
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This table covers the drain plugs in the oil pan.

Oil Drain Plug Gasket

Brand Part Number Markets Notes Buy
MAHLE / CLEVITE Popular Fits: 4.1L 250cid L6 2051
🇺🇸 US 🇨🇦 CA
Composite
Fitment notes — MAHLE / CLEVITE 2051
Composite
with 1/2 IN I.D., with English Threads
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VICTOR REINZ Popular Fits: 4.1L 250cid L6 711346200
🇺🇸 US 🇨🇦 CA
0.500 IN Inside Diameter
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DORMAN Fits: 4.1L 250cid L6 097022
🇺🇸 US 🇨🇦 CA
Nylon GasketSize
Fitment notes — DORMAN 097022
Nylon GasketSize1/2", M12Inside Dia: 0.504"/12.80mmOutside Dia.: 0.988"/25.10mmThickness: 0.068"/1.73mm
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FEL-PRO Fits: 4.1L 250cid L6 70822
🇺🇸 US 🇨🇦 CA
0.500 (in) Inside Diameter x 0.900 (in) Outside DiameterFlat Washer
Fitment notes — FEL-PRO 70822
0.500 (in) Inside Diameter x 0.900 (in) Outside DiameterFlat WasherPlastic
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NEEDA Fits: 4.1L 250cid L6 67270625
🇺🇸 US 🇨🇦 CA
Fits Gaskets Boxed 25
Fitment notes — NEEDA 67270625
Fits:
Gaskets Boxed 25
or:
ODP GasketM12Hard Nylon
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ULTRA-POWER Fits: 4.1L 250cid L6 097022
🇺🇸 US 🇨🇦 CA
ID: 0.504"NYLON GASKET
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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 Fits: 4.1L 250cid L6 72238WS
🇺🇸 US 🇨🇦 CA
Workshop Oil Filter
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CHAMP / LUBER-FINER Fits: 4.1L 250cid L6 PH454
🇺🇸 US 🇨🇦 CA
Anti-Drain Back Valve: YESSpin-On Filter.
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PRO-TEC Fits: 4.1L 250cid L6 PXL51069
🇺🇸 US 🇨🇦 CA
Thread Size: 13/16-16 InSpin-On Filter
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VARIOUS MFR Fits: 4.1L 250cid L6 PG5313
🇺🇸 US 🇨🇦 CA
Spin-On
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High Performance / Heavy Duty

Brand Part Number Markets Notes Buy
MOBIL Fits: 4.1L 250cid L6 M1111A
🇺🇸 US 🇨🇦 CA
Extended Performance
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Standard Replacement

Brand Part Number Markets Notes Buy
ACDELCO Popular Fits: 4.1L 250cid L6 PF454
🇺🇸 US 🇨🇦 CA
GM Original EquipmentGasket Or Seal Included: YES
Fitment notes — ACDELCO PF454
GM Original EquipmentGasket Or Seal Included: YESSpin-On
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WIX Popular Fits: 4.1L 250cid L6 51069
🇺🇸 US 🇨🇦 CA
Burst Pressure: 225 PSIStyle: Spin-On Lube Filter
Fitment notes — WIX 51069
Burst Pressure: 225 PSIStyle: Spin-On Lube FilterThread Size: 13/16-16 In
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BOSCH Fits: 4.1L 250cid L6 3322
🇺🇸 US 🇨🇦 CA
Premium Oil Filter
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HASTINGS / BALDWIN Fits: 4.1L 250cid L6 LF225
🇺🇸 US 🇨🇦 CA
Spin-On
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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
FEL-PRO Fits: 4.1L 250cid L6 OS30126C1
🇺🇸 US 🇨🇦 CA
Multi-Piece
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 OS30988X
🇺🇸 US 🇨🇦 CA
Cork-Rubber
Fitment notes — MAHLE / CLEVITE OS30988X
Cork-Rubber
with 24 Bolt Oil Pan
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VICTOR REINZ Fits: 4.1L 250cid L6 101018501
🇺🇸 US 🇨🇦 CA
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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.

Piston

Brand Part Number Markets Notes Buy
MAHLE / CLEVITE Fits: 4.1L 250cid L6 2241658
🇺🇸 US 🇨🇦 CA
Non-Coated Skirt
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This table covers the pistons that travel in each cylinder. Typical signs include knock, blow-by, or a cylinder that will not hold compression. Piston work is a short-block job. Match bore, pin and ring pack in the notes — not the photo.

Piston Ring

Premium

Brand Part Number Markets Notes Buy
MAHLE / CLEVITE Fits: 4.1L 250cid L6 40514CP
🇺🇸 US 🇨🇦 CA
PremiumMaterial Cast Iron / Cast Iron / Stainless Steel
Fitment notes — MAHLE / CLEVITE 40514CP
PremiumMaterial Cast Iron / Cast Iron / Stainless SteelSetAxial Height: 5/64in / 5/64in / 3/16inFacing: Plasma-Moly / Chrome
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Standard Replacement

Brand Part Number Markets Notes Buy
MAHLE / CLEVITE Fits: 4.1L 250cid L6 S50514CP
🇺🇸 US 🇨🇦 CA
Single Cylinder SetChrome Facing
Fitment notes — MAHLE / CLEVITE S50514CP
Single Cylinder SetChrome FacingMaterial Cast Iron / Cast Iron / Stainless SteelAxial Height: 5/64in / 5/64in / 3/16inBore Diameter (In): 3.875
(Size: Standard)
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 50514CP
🇺🇸 US 🇨🇦 CA
SetChrome Facing
Fitment notes — MAHLE / CLEVITE 50514CP
SetChrome FacingBore Diameter (In): 3.875Material Cast Iron / Cast Iron / Stainless SteelAxial Height: 5/64in / 5/64in / 3/16in
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This table covers the rings that seal each piston to the cylinder wall.

Push Rod Cover Gasket Set

Brand Part Number Markets Notes Buy
FEL-PRO Fits: 4.1L 250cid L6 PS13228
🇺🇸 US 🇨🇦 CA
Includes GrommetsCork
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This table covers the Push Rod Cover 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.

Push Rod Gasket Set

Brand Part Number Markets Notes Buy
MAHLE / CLEVITE Fits: 4.1L 250cid L6 PS38113
🇺🇸 US 🇨🇦 CA
Contains GrommetsCork-Rubber
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VICTOR REINZ Fits: 4.1L 250cid L6 181004401
🇺🇸 US 🇨🇦 CA
Cork
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VICTOR REINZ Fits: 4.1L 250cid L6 181005001
🇺🇸 US 🇨🇦 CA
RubberGasket Set
Fitment notes — VICTOR REINZ 181005001
RubberGasket SetMounting Gasket
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This table covers the Push Rod 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.

Timing Cam Sprocket

Brand Part Number Markets Notes Buy
CLOYES Popular Fits: 4.1L 250cid L6 2524
🇺🇸 US 🇨🇦 CA
Cast
Fitment notes — CLOYES 2524
Cast
with Light Duty Engine
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CLOYES Popular Fits: 4.1L 250cid L6 2526
🇺🇸 US 🇨🇦 CA
Aluminum
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CLOYES Fits: 4.1L 250cid L6 2542
🇺🇸 US 🇨🇦 CA
FrontAdjustable: No
Fitment notes — CLOYES 2542
FrontAdjustable: NoChain Rows: Single GearThrust Bearing Included: N/ATeeth: 54FiberLight Duty Engine
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FVP Fits: 4.1L 250cid L6 2524
🇺🇸 US 🇨🇦 CA
with Light Duty Engine
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FVP Fits: 4.1L 250cid L6 2526
🇺🇸 US 🇨🇦 CA
FrontAluminum
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INA Fits: 4.1L 250cid L6 ZS2526
🇺🇸 US 🇨🇦 CA
Late
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S.A. GEAR Fits: 4.1L 250cid L6 2526
🇺🇸 US 🇨🇦 CA
AluminumLate Model
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This table covers the Timing Cam sprockets.

Timing Chain & Component Kit

Brand Part Number Markets Notes Buy
ULTRA-POWER Fits: 4.1L 250cid L6 2525S
🇺🇸 US 🇨🇦 CA
Aluminum CAM GearStandard Duty Engine
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This table covers kits that group a timing chain with the related tensioners and guides.

Timing Cover Gasket

Brand Part Number Markets Notes Buy
FEL-PRO Popular Fits: 4.1L 250cid L6 TCS13198
🇺🇸 US 🇨🇦 CA
Repair Sleeve Not Included
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FEL-PRO Fits: 4.1L 250cid L6 TCS45264
🇺🇸 US 🇨🇦 CA
with Sleeve 'N' Seal
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 JV1136
🇺🇸 US 🇨🇦 CA
Set
Fitment notes — MAHLE / CLEVITE JV1136
Set
Repair Sleeve Included
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VICTOR REINZ Fits: 4.1L 250cid L6 151025501
🇺🇸 US 🇨🇦 CA
Set
Fitment notes — VICTOR REINZ 151025501
Set
without Sleeve
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VICTOR REINZ Fits: 4.1L 250cid L6 151017901
🇺🇸 US 🇨🇦 CA
SetDoes Not Include RTV
Fitment notes — VICTOR REINZ 151017901
SetDoes Not Include RTV
with Repair Sleeve
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This table covers the gaskets that seal the Timing Cover. 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 Cover Repair Sleeve

Brand Part Number Markets Notes Buy
SCHAEFFLER Fits: 4.1L 250cid L6 SR3498
🇺🇸 US 🇨🇦 CA
17.48 mm Width61.3 mm Outside Diameter
Fitment notes — SCHAEFFLER SR3498
17.48 mm Width61.3 mm Outside DiameterLate
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SKF Fits: 4.1L 250cid L6 480177
🇺🇸 US 🇨🇦 CA
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SKF Fits: 4.1L 250cid L6 99176
🇺🇸 US 🇨🇦 CA
Shaft Diameter: 1.766 In
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This table covers the wear sleeves used to restore a Timing Cover seal surface.

Timing Cover Repair Sleeve Tool

Brand Part Number Markets Notes Buy
FEL-PRO Fits: 4.1L 250cid L6 16312
🇺🇸 US 🇨🇦 CA
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This table covers the Timing Cover Repair Sleeve tools. This is a service tool, not a wear part — match the application in the notes.

Timing Cover Seal

Brand Part Number Markets Notes Buy
MAHLE / CLEVITE Popular Fits: 4.1L 250cid L6 65022
🇺🇸 US 🇨🇦 CA
Rubber1/2" Wide
Fitment notes — MAHLE / CLEVITE 65022
Rubber1/2" Wide
1/2 IN Wide, Lip Relocator Type
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 49328
🇺🇸 US 🇨🇦 CA
Rubber3/8" Wide
Fitment notes — MAHLE / CLEVITE 49328
Rubber3/8" Wide
3/8 IN Wide
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SCHAEFFLER Fits: 4.1L 250cid L6 SS2784
🇺🇸 US 🇨🇦 CA
Front9.53 mm Width
Fitment notes — SCHAEFFLER SS2784
Front9.53 mm Width61.3 mm Outside DiameterLate44.78 mm Shaft Diameter
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SKF Fits: 4.1L 250cid L6 17286
🇺🇸 US 🇨🇦 CA
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VICTOR REINZ Fits: 4.1L 250cid L6 191035801
🇺🇸 US 🇨🇦 CA
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This table covers the seals at the Timing Cover. 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.

Timing Crank Sprocket

Brand Part Number Markets Notes Buy
CLOYES Popular Fits: 4.1L 250cid L6 2537
🇺🇸 US 🇨🇦 CA
Timing Crankshaft Gear
Fitment notes — CLOYES 2537
Timing Crankshaft Gear
Outerwith Light Duty Engine
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CLOYES Popular Fits: 4.1L 250cid L6 2527
🇺🇸 US 🇨🇦 CA
Timing Crankshaft Gear
Fitment notes — CLOYES 2527
Timing Crankshaft Gear
OuterMetal
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CLOYES Fits: 4.1L 250cid L6 2501
🇺🇸 US 🇨🇦 CA
Light Duty Engine27 Teeth
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FVP Fits: 4.1L 250cid L6 2527
🇺🇸 US 🇨🇦 CA
OuterMetal
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FVP Fits: 4.1L 250cid L6 2537
🇺🇸 US 🇨🇦 CA
Outerwith Light Duty Engine
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INA Fits: 4.1L 250cid L6 ZS2527
🇺🇸 US 🇨🇦 CA
Late
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S.A. GEAR Fits: 4.1L 250cid L6 2527
🇺🇸 US 🇨🇦 CA
Late
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This table covers the crankshaft sprockets that drive the timing chain or belt.

Timing Gear Set

Brand Part Number Markets Notes Buy
CLOYES Popular Fits: 4.1L 250cid L6 2525S
🇺🇸 US 🇨🇦 CA
with Standard Duty Enginewith Aluminum Cam Gear
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CLOYES Popular Fits: 4.1L 250cid L6 2528S
🇺🇸 US 🇨🇦 CA
with Heavy Duty Enginewith Aluminum Cam Gear
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FVP Fits: 4.1L 250cid L6 2525S
🇺🇸 US 🇨🇦 CA
with Light Duty Engine
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FVP Fits: 4.1L 250cid L6 2528S
🇺🇸 US 🇨🇦 CA
Includes: Camshaft Sprocket, Crankshaft Sprocket
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INA Fits: 4.1L 250cid L6 ZC2528S
🇺🇸 US 🇨🇦 CA
AluminumLate
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S.A. GEAR Fits: 4.1L 250cid L6 2528S
🇺🇸 US 🇨🇦 CA
AluminumLate Model
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This table covers the Timing Gear sets.

Valve Cover Gasket

Brand Part Number Markets Notes Buy
FEL-PRO Popular Fits: 4.1L 250cid L6 VS131731
🇺🇸 US 🇨🇦 CA
Cork
Fitment notes — FEL-PRO VS131731
Cork
with Separate Head and Intake Manifold3 Bolt holes on Right Hand of the Valve Cover
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MAHLE / CLEVITE Popular Fits: 4.1L 250cid L6 VS39693
🇺🇸 US 🇨🇦 CA
Cork-Rubber
Fitment notes — MAHLE / CLEVITE VS39693
Cork-Rubber
with Separate Head & Manifold
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FEL-PRO Fits: 4.1L 250cid L6 VS50181C
🇺🇸 US 🇨🇦 CA
Corkwith Integral Head
Fitment notes — FEL-PRO VS50181C
Corkwith Integral Head5 Bolt holes on Right Hand of the Valve Cover
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 VS39755
🇺🇸 US 🇨🇦 CA
Cork-Rubber
Fitment notes — MAHLE / CLEVITE VS39755
Cork-Rubber
with Integral Cylinder Head & Manifold
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VICTOR REINZ Fits: 4.1L 250cid L6 151054201
🇺🇸 US 🇨🇦 CA
Improved DesignSet
Fitment notes — VICTOR REINZ 151054201
Improved DesignSetCork
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VICTOR REINZ Fits: 4.1L 250cid L6 151054801
🇺🇸 US 🇨🇦 CA
SetCork
Fitment notes — VICTOR REINZ 151054801
SetCork
5 Bolt holes on Right Hand of the Valve Coverwith Integral Cylinder Head & Manifold
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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
FEL-PRO Fits: 4.1L 250cid L6 SS5112
🇺🇸 US 🇨🇦 CA
Set
Fitment notes — FEL-PRO SS5112
Set
Intake and ExhaustO-Ring Type
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MAHLE / CLEVITE Fits: 4.1L 250cid L6 SS45229
🇺🇸 US 🇨🇦 CA
SetMolded Rubber
Fitment notes — MAHLE / CLEVITE SS45229
SetMolded Rubber
Intake and ExhaustO-Ring Type
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VICTOR REINZ Fits: 4.1L 250cid L6 121001801
🇺🇸 US 🇨🇦 CA
SetContains 8 Pieces
Fitment notes — VICTOR REINZ 121001801
SetContains 8 Pieces
Intake and ExhaustO-Ring Type
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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 1976 Checker Marathon

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.

  • Match the engine first. Every engine part here is engine-specific; each row shows which engine(s) it fits.
  • 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 Oil Filter .

Frequently Asked Questions

How many engine parts fit the 1976 Checker Marathon?

Our catalog currently lists 120 engine parts for the 1976 Checker Marathon across 32 subcategories and 28 brands, covering both the 4.1L 250cid L6 and the 5.7L 350cid V8. Each part is matched to the engine(s) it fits.

Do engine parts differ between 1976 Checker Marathon engines?

Yes. Every engine part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.

What are the signs of engine problems on a 1976 Checker Marathon?

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 1976 Checker Marathon 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 1976 Checker Marathon?

First match the engine — each row shows which engine(s) the part fits. 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 1976 Checker Marathon

Engine Parts for Other Checker Marathon 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.