ACL Race Rod Bearings for Honda/Acura K20A2/K24A (4B1972H)




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ACL tri-metal Race Series connecting rod bearings for Honda/Acura 2.0L/2.4L K20A2/K24A. Includes a full set of 8 bearing halves for 4 rods as pictured. Standard, oversized and extra clearance options are available. 4B1972H-STD is pictured for reference.

Vehicle Fitment:
Honda/Acura 2.0L 2.4L K20A2 K24A

Purchase Includes:
Set of 8 bearings for 4 rods

More Info:
ACL Race Series performance engine bearings are manufactured to exacting tolerances. Micron tolerance machining supported by precision measurement systems delivers consistent accuracy to key characteristics like wall thickness and crush. This ensures reliable fit and helps maintain consistent clearances.

A blend of characteristics to provide high strength and excellent seizure resistance.
No flash plating is applied to further improve bearing retention and maximize heat transfer.

Part Number: Size:
4B1972H-STD Standard Size
4B1972HC-STD Standard Size CT-1 Coated
4B1972HX-STD Standard size with (.001") extra clearance
4B1972HD-STD Standard Size with location dowel holes
4B1972HXC-STD Standard size with (.001") extra clearance, CT-1 Coated
4B1972HXD-STD Standard size with (.001") extra clearance, with location dowel holes
4B1972H-.025 .001" (.025mm Oversize)
4B1972HC-.025 .001" (.025mm Oversize) CT-1 Coated
4B1972HD-.025 .001" (.025mm Oversize) with location dowel holes
4B1972H-.25 .010" (.25mm Oversize)
4B1972HD-.25 .010" (.25mm Oversize) with location dowel holes
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