What is the purpose of a stepped rocker arm bushing?

A stepped rocker arm bushing ensures the rocker arm pivots smoothly within the cylinder head. This smooth operation is crucial for accurate valve timing and overall engine efficiency. The stepped design is specific to certain Harley-Davidson applications for a precise fit.

What are the dimensions of this bushing?

This stepped rocker arm bushing measures .530 inches on one end, .677 inches in the middle section, and .750 inches on the other end. These specific dimensions are important for proper fitment within the rocker arm assembly.

Does this bushing come with installation hardware?

This product listing is for the stepped rocker arm bushing only. Installation hardware, if required, is typically sold separately. Refer to the manufacturer's installation instructions for details on what else might be needed.

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S&S Cycle 84-99 BT/1986+ XL .530in x .677in x .750in Stepped Rocker Arm Bushing

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Specifications

Brand: S&S Cycle
Part #: 90-4014
UPC: 90-4014

S&S Cycle 84-99 BT/1986+ XL .530in x .677in x .750in Stepped Rocker Arm Bushing

Name: S&S Cycle 84-99 BT/1986+ XL .530in x .677in x .750in Stepped Rocker Arm Bushing
Brand: S&S Cycle
Price: 15.10 USD
Availability: InStock

$15.10

On Backorder — Expected to ship by May 7, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

S&S Cycle stepped rocker arm bushing for 84-99 Big Twin and 1986+ XL Harley-Davidson models. Part# 90-4014.

Key Features

Fits 1984-1999 Big Twin and 1986 and later XL Harley-Davidson motorcycles.
Stepped design with dimensions of .530 in. x .677 in. x .750 in.
Essential for smooth rocker arm pivot and proper valve timing.
Helps maintain engine performance and prevent valvetrain wear.

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Product Details

This is the S&S Cycle stepped rocker arm bushing, designed for 1984-1999 Big Twin and 1986 and later XL Harley-Davidson motorcycles. Rocker arm bushings are critical for ensuring the rocker arms pivot smoothly within the cylinder head, which is essential for proper valve timing and engine performance. Worn bushings can lead to increased noise, reduced efficiency, and potential damage to other valvetrain components.

This particular bushing measures .530 inches on one side, .677 inches in the middle, and .750 inches on the other, featuring a stepped design to accommodate specific fitment requirements within the rocker arm assembly. S&S Cycle is well-known for its performance engine components, and this bushing is built to meet the demands of these Harley-Davidson applications. Proper installation is key to ensuring it functions as intended and lasts.