This ACL High Performance main bearing set is sized for a standard, unmachined crankshaft main journal on the Acura B17A1/B18A1/B18B1/B18C1/B18C5 VTEC and Honda K20A3/K20A2/K24A engine family. Per ACL's own fitment data this bearing size is shared across the Acura Integra, RDX, RSX, and TSX, and the Honda Accord, Civic Si, CR-V, and Element.
Specifications:
- Type: Main Bearing Set
- Series: High Performance
- Size: Standard (fits stock, non-machined main journal)
- Engine Fitment: Acura B17A1/B18A1/B18B1/B18C1/B18C5 VTEC / Honda K20A3/K20A2/K24A
- Part Number: 5M1959H-STD
FAQ
What does "Standard Size" mean for this main bearing set?
Standard size means it's sized for a stock, non-machined main journal. Use standard size unless the crankshaft has been machined or reground oversize.
What engines does this main bearing set fit?
It's sized for the Acura B-series (B17A1, B18A1, B18B1, B18C1, B18C5 VTEC) and Honda/Acura K-series (K20A3, K20A2, K24A) engine family, as used in the Acura Integra, RDX, RSX, TSX and Honda Accord, Civic Si, CR-V, and Element.
Do I need rod bearings too?
Yes, this listing is for main bearings only. Rod bearings for this engine family are sold separately.
How many bearing shells are in this set?
This listing includes one complete main bearing set for a single engine in this family.
