King CR4537CA CA-Series Tri-Metal Rod Bearing Set MINI Cooper One R50 W10B16A

Vehicle Fitment

• 2002-2006 MINI Cooper Hardtop R50 (W10B16A, 1.6L NA I4, FWD)
• 2002-2006 MINI One Hardtop R50 (W10B16A, 1.6L NA I4, FWD)
• 2005-2008 MINI Cooper Convertible R52 (W10B16A, 1.6L NA I4, FWD)
• 2005-2008 MINI One Convertible R52 (W10B16A, 1.6L NA I4, FWD)

Fitment Notes

• Fits MINI W10B16A naturally aspirated 1.6L 16-valve engine only - does not fit the supercharged W11B16A Cooper S (R53)
• Standard (STD) size - fits stock crankshaft diameter with no machining required
• OEM reference: 11.24.1.485.577 (11241485577)
• R53 Cooper S uses the W11B16A supercharged engine - a different bearing application; verify engine code before ordering
• Engine bore: 77.0mm, stroke: 85.8mm, displacement: 1,598cc

Features

• CA-Series tri-metal copper-lead alloy construction provides reliable OE-grade load capacity for naturally aspirated 1.6L applications
• High fatigue strength and superior temperature threshold versus conventional bimetal designs
• Improved crankshaft finish reduces microscopic ferrite peaks on improperly ground or polished journal surfaces
• Improved oil clearance reduces wear and extends engine life while minimizing operating noise, vibration, and excess oil flow
• Bull's Eye Tolerance manufacturing technology ensures tight wall thickness consistency shell to shell
• Direct OE replacement with no modification required - installs with factory hardware

Specifications

• Part Number: CR4537CA
• Bearing Type: Connecting Rod Bearing Set
• Series: CA-Series (Tri-Metal Copper-Lead Alloy)
• Material: Tri-metal copper-lead alloy over steel backing
• Size: STD (Standard - stock crankshaft diameter)
• Engine: MINI W10B16A, 1.6L NA 16V I4
• Bore x Stroke: 77.0mm x 85.8mm
• Displacement: 1,598cc
• OEM Cross Reference: 11241485577 / NPR 61-0755-00
• Dowel Pin Hole: No
• Machining Required: No

Included Components

• 4x Connecting Rod Bearing Sets / 8x Total Bearing Shells (CR4537CA)

Product Description

The King CR4537CA is a CA-Series tri-metal copper-lead connecting rod bearing set engineered as a direct OE replacement for the MINI W10B16A naturally aspirated 1.6L 16-valve engine, as found in the first-generation MINI Cooper and One (R50 hardtop, R52 convertible). This bearing set uses King's tri-metal copper-lead alloy construction - a proven, high-fatigue-strength material designed for medium-load gasoline engines running OE crankshafts. It delivers reliable performance, improved oil clearance over worn OE shells, and a superior temperature threshold versus standard bimetal designs, making it an ideal choice for engine rebuilds targeting longevity and proper OE clearances.

Manufactured to King's Bull's Eye Tolerance standards, these bearings hold tight wall thickness consistency from shell to shell, ensuring proper fitment and minimizing selective fitting during assembly. The CR4537CA is a standard-size (STD) bearing requiring no crankshaft machining, and it cross-references directly to OEM part number 11241485577. It is important to note that this bearing does not fit the supercharged W11B16A Cooper S engine - builders working on R53 Cooper S or R52 Cooper S Convertible applications should verify their engine code before ordering.