Peterson Fluid SM85742 Tri-Tec Rear Main Seal for Small Block Ford

The Peterson Fluid SM85742 Tri-Tec Rear Main Seal is designed for Small Block Ford applications using a 351 block with a 302 crankshaft. This rear main seal features a one-piece construction made from rubber and steel, providing a purpose-built sealing component for the engine’s rear main area.

Supplied as an individual seal, the SM85742 offers a direct, application-specific replacement option for compatible Small Block Ford engine configurations. Its Tri-Tec design and rubber-and-steel construction make it suited to repair or rebuild work where the rear main seal requires replacement.

Verify the engine configuration and required part number before ordering to ensure this Peterson Fluid seal is appropriate for the intended application. The SM85742 is sold as one rear main seal.

Features:

• Brand: Peterson Fluid
• Part Number: SM85742
• Seal Type: Rear main seal
• Design: Tri-Tec, one-piece construction
• Materials: Rubber and steel
• Application: Small Block Ford with a 351 block and 302 crankshaft
• Quantity: Each