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Vehicle Info NeededACL BEARINGSPART NUMBER: 654-8B1578H-25
8B1578H-.25 Race Connecting Rod Bearing Set, .25 mm (0.010 in.) Undersize, BMW N63B44 4395cc V8 DOHC 4v Twin Turbo
$19299
Ships on 09/21/2026
Lowest Price GuaranteeBMW
Race Connecting Rod Bearing Set.25 mm (0.010 in.) Undersize BMW N63B44 4395cc V8 DOHC 4v Twin Turbo Set of 8
ACL Bearings 8B1578H-25 Features:
Trusted by champions worldwide, ACL RACE Series Bearings are the choice for record-setting engines from sport compact to small block race machines. Engineered w/a unique blend of design, metallurgy, and precision manufacturing, these Bearings deliver unmatched durability and performance under extreme conditions.
- Width: 0.591 in.
- Outside Diameter: 2.2683 in.
- Outside Diameter: 2.2677 in.
- Shaft Diameter: 2.1256 in.
- Shaft Diameter: 2.1248 in.
- Grade Type: Performance
- Maximum Wall Thickness: 0.0706 in.
Part TypeConnecting Rod Bearing Set
BrandACL BEARINGS
Package Height2.95
Package Width0.591 in.
Package Length25.0
Weight0.69 PG
Part CategoryPerformance Parts
Maximum Wall Thickness0.0706 in.
Shaft Diameter2.1248 in.
Part FitmentDirect Fit
Outside Diameter2.2683 in.
Grade TypePerformance
Vendor Part Number8B1578H-.25
Package Qty1
Package TypeEA
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