Engines and Components› Engine Bearings
ACL Race
Race Engine Bearing Kit Trimetal
SKU: 4B1946H-STD + 5M1959H-STD
Moderate — 2–4 hours
Description
These bearings are constructed from a Trimetal material, offering drivers the expected performance from high-performance engine bearings. They are manufactured to exacting tolerances to ensure a reliable fit and maintain consistent clearances. The thrust washers specifically help support the crankshaft and withstand stresses from clutch and flywheel operation.
Fitment
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Specifications
| Brand | ACL Race |
| Part Number | 4B1946H-STD + 5M1959H-STD |
| Category | Engines and Components |
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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