BCBC MPR-318 Engine Push Rod

Engine Push Rod Overview

This Melling engine push rod is a standard replacement part for a wide range of classic Chevrolet and GMC applications. Part number MPR-318 is built from welded steel and uses ball ends at both tips for consistent valve train contact.

Compatible with Chevrolet C10, C20, K10, and P20 applications, as well as GMC C15/C1500, K15/K1500, and P25/P2500 models in stock configurations. The MPR-318 is also listed for many Chevrolet and GMC trucks, vans, Suburbans, and utility models from the 1960s through the 1980s.

• Welded steel construction for a durable valve train component.
• Ball-end top and bottom tips for proper contact at both ends.
• Standard replacement grade for OEM-style service applications.
• Drilled design for applications that require oil passage through the push rod.
• Made in the USA.

Detailed Fitment and Function

MPR-318 is an engine push rod used in the valve train to transfer motion between the lifter and rocker arm. It measures 11.382 inches in length with a 0.312-inch diameter, and the 0.313-inch ball ends match the specified tip geometry for the listed stock applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

For Chevrolet and GMC truck, van, and Suburban engines, the MPR-318 supports stock valve train geometry when the original push rod is worn, bent, or no longer within specification. It is also a direct service option for many Chevrolet C10 Pickup, GMC Jimmy, and Chevrolet Blazer applications listed in the fitment data.

Common Replacement Uses

• Corrects valve train noise caused by a bent or worn push rod.
• Restores proper rocker arm movement in stock engine assemblies.
• Addresses inconsistent valve lift caused by incorrect push rod geometry.
• Replaces a damaged push rod in Chevrolet and GMC stock applications.
• Supports service work on classic Chevrolet C10 Pickup and GMC Jimmy engines.

Installation Notes and Tips

Verify overall length, tip style, and diameter against the original part before installation. Melling recommends replacing push rods as a set when servicing the valve train so geometry remains consistent across the engine. Confirm that the drilled design matches the engine's lubrication requirements and inspect related valve train components for wear before assembly.

Quality Assurance

Melling manufactures this push rod in the USA and builds it to strict production specifications using quality materials and controlled manufacturing processes. Part number MPR-318 is a standard replacement component for stock engine service, with interchange support including Continental 48009 and related cross-reference numbers.