ACL 4B1912H-.025 Connecting Rod Bearing Set for Honda K20A2, K20Z1, K24A, K24Z1 and K20C Engines

Honda K20A2, K20Z1, K24A, K24Z1, K20C Connecting Rod Bearing Set 4 - .025mm (0.001") undersize

The ACL 4B1912H-.025 connecting rod bearing set is designed for select Honda performance and replacement engine applications, including K20A2, K20Z1, K24A, K24Z1 and K20C engines. This set contains bearings manufactured for crankshafts machined to accept a 0.001-inch undersize bearing, supporting accurate oil clearance and dependable connecting rod performance during engine assembly or rebuild work.

Built for demanding automotive applications, ACL high-performance rod bearings are engineered with carefully controlled dimensions and a durable bearing construction to help manage load, heat and friction. The 4B1912H-.025 part number identifies the applicable undersize specification, making it important to verify crankshaft journal measurements and manufacturer clearances before installation. Professional installation and precise engine machining practices are recommended.

Application data indicates compatibility with select 1997-2001 Honda Prelude models equipped with applicable H22A4 engine configurations. Confirm the engine code, crankshaft journal size and required bearing clearance before ordering. The set is intended for one engine application and includes the connecting rod bearing shells required for installation. ACL part number 4B1912H-.025 is a direct fitment-oriented replacement component for suitable Honda engine rebuilds and performance projects.

Key Product Specifications & Technical Data

• Brand: ACL
• Part Number: 4B1912H-.025
• Product Type: Connecting rod bearing set
• Application: Automotive engine rebuilding and performance use
• Engine Compatibility: Honda K20A2, K20Z1, K24A, K24Z1 and K20C
• Bearing Size: 0.001-inch undersize
• Set Quantity: Four connecting rod bearing pairs
• Installation Requirement: Verify crankshaft journal measurements and bearing clearances

What's Included

One ACL 4B1912H-.025 connecting rod bearing set for a single engine application. Crankshaft machining, connecting rods, fasteners and installation hardware are not included.

Fitment

Listed fitment includes select 1997, 1998, 1999, 2000 and 2001 Honda Prelude models with applicable H22A4 engine configurations. Always confirm the exact engine code and bearing requirements before installation.

Features:

• Application-specific fitment for select Honda K20A2, K20Z1, K24A, K24Z1 and K20C engines.
• 0.001-inch undersize specification supports crankshafts machined for undersize rod bearings.
• High-performance bearing construction helps manage connecting rod load, heat and friction.
• Complete set supports one engine rebuild or connecting rod bearing replacement.

Fitments:
1997 Honda Prelude Base
1997 Honda Prelude Type SH
1998 Honda Prelude Base
1998 Honda Prelude Type SH
1999 Honda Prelude Base
1999 Honda Prelude Type SH
2000 Honda Prelude Base
2000 Honda Prelude Type SH
2000 Honda S2000 Base
2001 Honda Prelude Base
2001 Honda Prelude Type SH
2001 Honda S2000 Base
2002 Honda S2000 Base
2003 Honda S2000 Base
2004 Honda S2000 Base
2005 Honda S2000 Base
2006 Honda S2000 Base
2007 Honda S2000 Base
2008 Honda S2000 Base
2008 Honda S2000 CR
2009 Honda S2000 Base
2009 Honda S2000 CR

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1