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Description: Pontiac 3.00" main 1-piece dual-lip Viton rear main seal. CRANKSHAFT MUST BE REMOVED to install — for in-car repair order 2-piece BOP-RMS01. Fits 1959-79 326-400 and 1979-81 265/301 (early 347/370 when trimmed).
Item #: BOP-RMS18
Condition: New
Price: $59.95

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Description: Pontiac 3.00" main 2-piece single-lip Viton rear main seal. Can be installed with the crank in the engine. Fits 1959-79 326-400 and 1979-81 265/301 (early 347/370 when trimmed). 421/428/455 use BOP-RMS02.
Item #: BOP-RMS01
Condition: New
Price: $49.95
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Description: Pontiac 3.25" main 1-piece dual-lip Viton rear main seal for 421/428/455. CRANKSHAFT MUST BE REMOVED to install — for in-car repair order 2-piece BOP-RMS02. Anti-rotation holes must be filled with silicone.
Item #: BOP-RMS19
Condition: New
Price: $59.95

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Description: Pontiac 3.25" main 2-piece single-lip Viton rear main seal for 421/428/455. Can be installed with the crank in the engine. All four anti-rotation holes must be filled with silicone. 326-400 use BOP-RMS01.
Item #: BOP-RMS02
Condition: New
Price: $49.95
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Description: Oldsmobile 403 Viton 2-piece rear main seal. NOT for Pontiac engines — Pontiac uses BOP-RMS01/RMS18 (3.00" main) or BOP-RMS02/RMS19 (3.25" main).
Item #: BOP-RMS03
Condition: New
Price: $53.95

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Items 1-5 of 5