Sale

Exterior Components› Body Panels and Components

ACL

ACL Olds. V8 400-425-455 1965-76 Engine Crankshaft Main Bearing Set

$50.88 $33.39 Save $17.49

SKU: A002 5M804A-20

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Part #: 5M804A-20

MIA's Description

The ACL Bearing 5M804A-20 is a main bearing set designed for Oldsmobile V8 engines, specifically the 400, 425, and 455 cubic inch displacements from model years 1965 to 1976. These bearings feature an advanced bimetal aluminum construction, replacing traditional lead-based bearings to meet modern environmental and performance standards.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

Available on iOS & Android

Specifications

BrandACL
Part NumberA002 5M804A-20

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.

View Full Return Policy