MAHLE Original Caterpillar 3406/3406E/G3406 Rear Main Seal

This Victor Reinz rear main seal, part number JV1698, is constructed from a durable nitrile material, chosen for its resistance to oil and heat. It's designed to seal the gap between the engine block and the crankshaft, preventing oil from leaking out of the engine. A properly functioning rear main seal is critical for maintaining oil levels and preventing potential engine damage from oil loss.

When you're rebuilding the rear of your Caterpillar 3406, 3406E, or G3406 engine, a new rear main seal is a must-have. This seal is built to withstand the demanding environment of the engine's lower end, ensuring a tight seal even under pressure and at operating temperatures. Installing a new seal during a major engine service helps prevent future leaks and keeps your engine running cleanly.