Engines and Components› Engine Bearings
ACL
ACL Bearings Holden Isuzu 4JB1 4JB1T 4JB1T B 4JG2
SKU: A002 4B1890-STD
Easy — 1–2 hours
Description
This particular set is .25mm oversized, intended for applications where crankshaft journals have been machined to a larger diameter. The standard shaft size is 1.889in (47.98mm) with a maximum standard shaft size of 48mm.
Fitment
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Specifications
| Brand | ACL |
| Part Number | A002 4B1890-STD |
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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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