Exterior Components› Body Panels and Components
King Engine Bearings
King Engine Bearings AMC / JEEP 390, 401 Main Bearing Set
SKU: K006 MB5518AM040
Easy — 1–2 hours
Description
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
| Brand | King Engine Bearings |
| Part Number | K006 MB5518AM040 |
Videos
3rd generation AMC V8 Engine family 304, 360, 390, 401
King Engine Bearing & Crankshaft Installation Guide Feat. XP Bearings
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Everything you need to know about Engine/Main Bearings
The BEST Bearings For Your Build - King Engine Bearings pMaxKote
The SHOCKING TRUTH about AMC’s LEGENDARY 401 V8 engine You NEVER Knew!
Lifter Valley Oil Line Install: AMC V8 Engines
Adding Oil On The Back Side Of Bearings During Engine Assembly. Good Or Bad?
Jeep 4.0 Crankshaft and Bearings: Engine Rebuild Part 17
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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