Wheels and Tires› Wheels

Allstar Performance

Rear Main Seal Adapter 86-up Pan

$132.99

SKU: A02M ALL26126

In Stock
In Stock
Ships by Jun 8
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Allstar Performance ALL26126 is a rear main seal adapter designed for Small Block Chevy engines. This billet aluminum adapter facilitates the installation of a two-piece style crankshaft seal and an early (pre-1986) crankshaft into a 1986 and newer SB Chevy (pre-LS) engine.

It is specifically for use with 1986 and later oil pans, converting a one-piece rear main seal block to accept an older-style, two-piece seal.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandAllstar Performance
Part NumberA02M ALL26126

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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