BCBC MRM-1804 Engine Rocker Arm Ball

Engine Rocker Arm Ball Overview

The Melling MRM-1804 is a standard replacement rocker arm ball for valve train service and engine rebuilds. It is made in the USA and built from steel to provide a stable pivot point for rocker arm movement.

When a rocker arm ball wears, friction can increase and valve train motion can become inconsistent. This Melling rocker arm ball helps restore proper adjustment and dependable rocker arm operation in compatible Chevrolet and GMC applications.

Key Features

• Steel construction for valve train service
• Standard replacement design for rebuild work
• 1.018 in. / 26.0 mm ball diameter
• Made in the USA
• Part number MRM-1804

Detailed Description

The MRM-1804 rocker arm ball serves as the pivot or fulcrum point for the rocker arm, making it a critical wear item in the valve train. Melling recommends replacing rocker arm balls during engine rebuilds to maintain accurate adjustment and reduce friction at the rocker arm contact point. This part number, MRM-1804, is listed for stock applications across Chevrolet and GMC C/K trucks, Suburban models, vans, and medium-duty platforms from 1991-2000.

Compatible With Chevrolet C2500, C3500, K2500, K3500, Express 3500, C2500 Suburban, K2500 Suburban, P30, G30, R2500 Suburban, R3500, and V3500; and GMC C2500, C3500, K2500, K3500, Savana 3500, C2500 Suburban, K2500 Suburban, P3500, G3500, R2500 Suburban, R3500, and V3500. Use MRM-1804 when servicing stock valve train hardware on these Chevrolet and GMC platforms.

What It Is Used For

• Replacing a worn rocker arm pivot surface
• Reducing friction in the valve train
• Restoring consistent rocker arm movement
• Supporting accurate valve train adjustment during rebuilds
• Addressing wear-related noise or irregular operation

Installation Notes and Tips

Inspect the rocker arm, pushrod, and related valve train components before installation. Replace worn or damaged mating parts as needed to avoid repeat wear. Confirm the 1.018 in. / 26.0 mm ball diameter and stock application details before assembly. This part cross-references Monroe Shocks & Struts (e.g., 10213466) for the same application.

Quality Assurance

Melling manufactures this rocker arm ball to high material and quality standards. The part is made in the USA, and Melling recommends new rocker arm balls with every engine rebuild.