What is a rear main seal and why does it need replacing?

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. If it's damaged or worn, you'll likely see oil leaks under your vehicle or notice your oil level dropping.

What vehicles does this Victor Reinz rear main seal set fit?

This seal set is designed to fit a wide variety of vehicles. This includes models from AM General, Avanti II, Buick, Cadillac, and Chevrolet, covering many different applications from the late 1980s through the mid-1990s.

What is involved in replacing a rear main seal?

Replacing a rear main seal is typically a labor-intensive job. It usually requires removing the transmission from the vehicle to gain access to the seal. It's a job best suited for those with mechanical experience or a professional mechanic.

Victor Reinz Rear Main Seal Set JV1634

Name: MAHLE Original Buick Commercial Chassis 96-91 Rear Main Seal Set
Brand: Victor Reinz
Price: 31.51 USD
Availability: InStock

MAHLE Original Buick Commercial Chassis 96-91 Rear Main Seal Set

$31.51

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 is known for engine gaskets. This rear main seal set helps prevent oil leaks from your engine's crankshaft.

Key Features

Fits a wide range of vehicles including Chevrolet Astro, Buick Roadmaster, and Cadillac Fleetwood.
Helps prevent oil leaks from the engine's crankshaft.
Built with durable materials for long-lasting performance.
Designed to meet original equipment specifications for a proper seal.

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Will this fit your vehicle?

Product Details

Victor Reinz is a well-known name for engine gaskets, and this rear main seal set is built to help keep your engine running smoothly. A rear main seal is critical for preventing oil from leaking out of the engine where the crankshaft exits the block. If you're noticing oil spots under your vehicle or the oil level is consistently dropping, a worn or damaged rear main seal could be the culprit. This set is designed to fit a variety of vehicles, including models like the Chevrolet Astro, Buick Roadmaster, and Cadillac Fleetwood, ensuring you can get the right part for your repair.

This seal set is made with durable materials to withstand the pressures and temperatures found within the engine. Replacing a rear main seal is a significant job, often requiring the transmission to be removed, but using a well-built seal like this one from Victor Reinz means you're installing a part that's meant to last. It’s designed to match the original specifications, helping to ensure a proper seal and prevent oil seepage.