King Engine Bearings CR 605SI0.25 SI-Series Connecting Rod Bearing Set 0.25mm Undersize

The King Engine Bearings CR 605SI0.25 is a 0.25mm undersize connecting rod bearing set from King's SI-Series, engineered as a premium OE replacement for GM 2.8L and 3.4L V6 engines (173ci and 207ci). This set includes 6 pairs of rod bearings designed to restore proper crankshaft clearances during engine rebuilds.

SI-Series Bi-Metal Silicon Aluminum Material:

• Lead-free construction — an environmentally responsible OE-replacement bearing material
• Aluminum base alloy strengthened with 2.5–3% silicon for enhanced durability under medium load conditions
• Optimized for use with nodular cast iron crankshafts, common in GM V6 applications
• Improved surface finish reduces microscopic ferrite peaks on improperly ground or polished crankshaft journals

King Bull's Eye Tolerance™ Technology:

• Highly accurate machining combined with computerized wall thickness monitoring ensures consistent shell-to-shell tolerances
• Improved oil clearance helps reduce wear, extend engine life, and minimize operating noise, vibration, and excess oil flow

Set Contents & Sizing:

• Includes 6 pairs of connecting rod bearings
• Size: 0.25mm undersize (for use with crankshafts ground 0.25mm under standard)
• Part Number: CR 605SI0.25

King Engine Bearings has been a trusted name in precision engine bearings since 1960, supplying the automotive, marine, aviation, and racing industries with bearings built to exacting standards. The SI-Series is their recommended choice for OE-style engine rebuilds and aftermarket gasoline or diesel performance engines using stock crankshafts.