2004 Engine Blocks & Accessories

Rear Main Seal Cover, Aluminum, Natural, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Saab, Kit

Part Number: RNB-635-518

3.89 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

Oil Cooler Block-Off Plate, Billet Aluminum, Black Anodized, 1/8 in. NPT Port, Chevrolet, LS, Each

Part Number: EAR-LS0020ERL

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

Block Off, Oil Cooler, Billet Aluminum, Black Anodized, GM, LS, Each

Part Number: DER-35601

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Engine Hardware Kit, Brass Freeze Plugs, Main Cap Side Bolts, Chevy, LS, Kit

Part Number: SUM-G1585

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

Lifter Valley Cover, Finned, Aluminum, Black Powdercoated, Chevy, LS, Each

Part Number: SUM-240065-BLK

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Main Studs, Side Bolts, 12-Point Head, Ford, 4.6L, Kit

Part Number: ARP-156-5201

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

Main Bolts, Side Bolts, 12-Point Head, Ford, 4.6L, Kit

Part Number: ARP-156-5001

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Main Cap Studs, 2-bolt Style, Standard Hex Nuts, Washers, Jeep, 4.0L, Kit

Part Number: ARP-146-5401

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Rear Main Seal Housing, Engine Crankshaft Seal Housing, Rear Main Seal, V6, One-Piece, Each

Part Number: ADO-12595923

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• $20 Summit Bucks

Main Bolts, High Performance Series, 2-bolt Style, Hex Head, Washers, Jeep, 4.0L, Kit

Part Number: ARP-146-5001

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Engine Valley Cover, Finned, Billet Aluminum, Black, Hardware Included, Chevy, Each

Part Number: TSN-81045BK

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Powersports Engine Fasteners, Powersports Engine and Accessory Fastener Kits, Crankcase Housing Position, Bolt Style, Stainless, Polished, Suzuki, Kit

Part Number: ARP-471-9501

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Main Studs, Hex Head Nuts, Ford, 2.0L, Zetec, Kit

Part Number: ARP-151-5406

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Bellhousing Dowel Pins, 0.021 in. Offset, 0.628 in. Diameter, Ford, 4.6L/5.4L Modular, 5.0 Coyote, Pair

Part Number: QTI-RM-142

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Lifter Valley Cover, Finned, Aluminum, Natural, Chevy, LS, Each

Part Number: SUM-240065-SAT

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Lifter Valley Cover, Finned, Aluminum, Polished, Chevy, LS, Each

Part Number: SUM-240065-POL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

Dowel Pins, Clutch Housing Locating Dowels, Steel, Each

Part Number: CBM-04429678

Not Yet Reviewed

Estimated Ship Date: Tomorrow

Main Bolts, OE Replacement, GM, Set of 10

Part Number: RNB-45691

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

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AN Block Adapters, -12 AN Adapters, Black Anodized, Chevy, LS, Kit

Part Number: PGP-PRP-6866

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

• Drop Ship
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Engine Valley Cover, Finned, Billet Aluminum, Polished, Hardware Included, Chevy, Each

Part Number: TSN-81045P

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2026 if ordered today

• Drop Ship
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Rear Seal

Part Number: RNB-635-557

Not Yet Reviewed

Estimated Ship Date: Jan 13, 2026 if ordered today

• Drop Ship
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Offset Dowel Pins Mazda Rotary .007

Part Number: IST-BHI-00007

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

• Drop Ship
• Special Order

Offset Dowel Pins Mazda Rotary .014

Part Number: IST-BHI-00014

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

• Drop Ship
• Special Order

Offset Dowel Pins Mazda Rotary .021

Part Number: IST-BHI-00021

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

• Drop Ship
• Special Order