S&S Cycle 31-4058 Right Bearing Green XL Sportster Pinion Shaft

The S&S Cycle 31-4058 is a precision-engineered right side crankcase main bearing assembly designed specifically for Harley-Davidson Sportster XL models and Buell motorcycles. This replacement pinion shaft bearing features S&S's color-coded sizing system with a green designation to ensure proper fitment based on crankcase bore specifications.

Key Features:

• Made in the U.S.A. with premium quality materials
• Replacement right side crankcase main bearing assembly
• Green color code for precise fitment matching
• Designed for pinion shaft application on Sportster XL engines
• Direct replacement for OEM bearings on compatible models
• Precision-machined for optimal performance and durability

S&S Cycle uses a color-coding system (red, blue, white, green) to match bearing assemblies to specific crankcase bore dimensions, ensuring the proper clearance and fit for reliable engine operation. This bearing is essential for maintaining proper crankshaft support and smooth engine rotation.

Compatibility: Fits 1987-2003 Harley-Davidson Sportster 883 and 1200 models, as well as 1994-2002 Buell S-series motorcycles including S1 Lightning, S2/S3 Thunderbolt, X1 Lightning, and M2 Cyclone.