Rear Crankshaft Seal Cummins 3909410 | 3921265, 3925529, 3904087, 4089342

High-Performance Rear Crankshaft Seal for Cummins Engines

The Cummins 3909410 Rear Crankshaft Seal is a premium-grade sealing solution designed to prevent oil leaks and protect the rear of the crankshaft in heavy-duty diesel engines. Engineered to withstand extreme temperatures and high rotational speeds, this oil seal ensures optimal lubrication retention and prevents external contaminants from entering the engine block.

Key Features & Benefits

• Superior Leak Prevention: High-quality elastomeric/PTFE material provides a tight, reliable barrier against engine oil leakage.
• Heavy-Duty Durability: Built to resist degradation from heat, friction, and engine fluids, ensuring a long service life.
• Precise Fitment: Manufactured to exact dimensional specifications for a seamless installation and reliable performance.

Engine & Equipment Applications

This rear crankshaft seal is widely used in various industrial, agricultural, and automotive applications, including:

• Cummins Engines: 4BT 3.9, 6BT 5.9, 6CT 8.3, ISB, QSB, ISC, ISL
• Komatsu Engines: S4D102, S6D102, S6D114
• Compatible Equipment: Case IH, JCB, and Ford New Holland machinery utilizing compatible Cummins-based engines.

Specifications

• Part Number: 3909410
• Product Type: Rear Crankshaft Oil Seal
• Material: High-grade PTFE / Rubber