Engines and Components› Engine Bearings
ACL
ACL Ford Prod. V6 159-171-177 1972-90 Engine Crankshaft Main Bearing Set
SKU: A002 4M860A-STD
Advanced — 4+ hours
Description
Part #: 4M860A-STD
1987-90 car engines and 1986-89 truck engines. Flanged bearing thrust.
MIA's Description
This set is built to OE specifications, ensuring a proper fit and function for the specified Ford V6 applications.
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.
Available on iOS & Android
Specifications
| Brand | ACL |
| Part Number | A002 4M860A-STD |
Videos
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RB26 FULL ENGINE BUILD || Episode 3: ACL Bearing Install, Crankshaft Measurement/Confirmation Checks
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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