What is a rear main seal and why is it important?

The rear main seal is located at the back of the engine where the crankshaft exits the engine block. Its primary job is to prevent engine oil from leaking out. A failing seal can lead to significant oil loss and potential engine damage.

What material is this rear main seal made from?

This rear main seal is constructed from fluoroelastomer. This material is chosen for its excellent resistance to high temperatures and engine oils, which are common in the engine's rear main bearing area.

What is involved in replacing a rear main seal?

Replacing a rear main seal is typically a complex job that requires removing the transmission from the vehicle. It's recommended to consult the manufacturer's installation guide or a professional mechanic for the correct procedure.

Victor Reinz Engine Gasket 67931 - BMW 545i 04-05

Name: MAHLE Original BMW 545I 05-04 Rear Main Seal
Brand: Victor Reinz
Price: 96.09 USD
Availability: InStock

MAHLE Original BMW 545I 05-04 Rear Main Seal

$96.09

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Victor Reinz engine gasket for BMW 545i 04-05. Ensures a tight seal to prevent oil leaks.

Key Features

Fits 2004-2005 BMW 545i.
Made from durable fluoroelastomer material for heat and oil resistance.
Designed to prevent oil leaks from the crankshaft's rear main bearing.
Helps maintain proper engine oil levels.
Suitable for a wide range of BMW vehicles including the 645Ci and 745i.

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Product Details

This Victor Reinz rear main seal is made from a durable fluoroelastomer material, which is known for its resistance to heat and oil. It's designed to fit a range of BMW models, including the 545i, 645Ci, and 745i, helping to keep your engine running smoothly by preventing oil from leaking out of the crankshaft's rear main bearing.

A properly sealing rear main seal is critical for engine health. When this seal starts to fail, you'll often notice oil dripping from the back of the engine, which can lead to low oil levels and potential engine damage if not addressed. This seal is built to handle the demanding environment of the engine's rear main bearing, where it faces high temperatures and constant contact with the crankshaft.

Replacing a rear main seal can be a labor-intensive job, often requiring the transmission to be removed. Ensure you have the necessary tools and follow the manufacturer's installation instructions carefully to get this seal properly seated and prevent future leaks.