WIKIBB Rear Main Oil Seal Gasket for 1955-1958 GMC 265/283 OEM

Description

Product Overview

The WIKIBB Rear Main Oil Seal Gasket is engineered to match the original equipment specifications for 1955‑1958 Chevrolet and GMC vehicles equipped with 265 or 283 engines. Constructed from premium rubber, the seal offers excellent elasticity and resistance to oil seepage, ensuring a tight barrier between the transmission and the crankcase. Dimensions are 3.93 x 1.96 x 0.78 inches and it weighs just 1.76 ounces, making installation straightforward. This gasket carries the OEM part number 3711X, guaranteeing compatibility and performance equivalent to the factory component.

Usage

Designed for classic car enthusiasts and professional mechanics, this rear main oil seal is ideal for restoring vintage Chevrolet and GMC models to their original condition. Whether you are performing a transmission rebuild, addressing oil leaks, or conducting routine maintenance, the gasket provides a reliable seal that prevents oil loss and protects internal components. Its compact size fits easily into tight engine bays, and the rubber material tolerates the temperature fluctuations typical of older engines.

Why Choose Us

WIKIBB is committed to delivering high‑quality automotive parts that meet or exceed OEM standards. Each rear main oil seal undergoes rigorous quality checks to ensure dimensional accuracy and material integrity. Our gaskets are manufactured in a controlled environment, reducing the risk of defects and guaranteeing a consistent fit. In addition, we provide responsive customer support to assist with any installation questions or concerns, ensuring a smooth ownership experience.

Key Features

• Exact OEM fit for 1955‑1958 Chevrolet and GMC 265/283 engines
• High‑grade rubber construction delivers superior oil resistance
• Lightweight design simplifies handling and installation
• Durable material withstands temperature extremes and engine vibration
• Dedicated customer service ready to help with fitment and installation queries

FAQ

Will this seal fit a 1956 Chevrolet Bel Air with a 283 engine?

Yes, the gasket is compatible with all 1955‑1958 Chevrolet models that use the 283 engine, including the Bel Air.

What material is the seal made from?

The seal is made from high‑quality rubber that provides excellent elasticity and oil resistance.

Is this a direct replacement for part number 3711X?

Exactly. It matches the OEM part number 3711X, ensuring a perfect replacement without modifications.

Can I install this seal myself?

Yes, the seal’s compact size and lightweight design make it suitable for DIY installation with basic hand tools.

What warranty does WIKIBB offer?

WIKIBB provides a one‑year limited warranty covering manufacturing defects, backed by responsive after‑sales support.