BCBC MPR-378 Engine Push Rod

Engine Push Rod Overview

This Melling engine push rod, part number MPR-378, is a standard replacement component for valve train service. It is built for stock applications and uses welded steel construction with ball ends for consistent geometry.

Compatible with Jeep and Dodge applications, this push rod is made in the USA and follows Melling’s specification-driven manufacturing approach. The MPR-378 is a direct-fit style replacement for select engine valve train setups that require a 0.312-inch diameter and 9.485-inch length.

Key Features

• Welded steel construction for valve train service
• Standard replacement grade for OEM-style applications
• Ball end top and bottom tips
• Drilled design for engine oiling requirements
• Made in the USA

Detailed Description

The MPR-378 push rod is engineered for select stock engine applications where correct length, diameter, and tip design are critical to valve train operation. Its 0.312-inch diameter, 9.485-inch length, and ball-end configuration help maintain proper lifter-to-rocker geometry in compatible engines. Melling recommends replacing push rods during service to preserve valve train performance, and this part number is one of the standard replacement options in the Melling push rod line. This part cross-references Monroe Shocks & Struts (e.g., 74-6378, 190-1455) for the same application.

Fitment includes 1996-2002 Dodge Dakota, 1997-2002 Jeep TJ, 1997-2002 Jeep Wrangler, 1987-1995 Jeep Wrangler, 1984-2000 Jeep Cherokee, 1986-1992 Jeep Comanche, 1984-1987 Jeep Wagoneer, 1983-1986 Jeep CJ7, 1983-1985 Jeep Scrambler, and 1983-1984 American Motors Eagle. Use MPR-378 when servicing compatible Jeep Wrangler, Jeep Cherokee, or Dodge Dakota valve train assemblies that call for this specification.

What This Part Helps Address

• Incorrect valve train geometry after wear or service
• Bent or damaged push rods
• Noisy or inconsistent valve train operation
• Loss of proper rocker arm movement
• Replacement needs during engine rebuild or top-end service

Installation Notes

Verify push rod length, diameter, and tip style before installation. Confirm that the drilled design matches the engine’s oiling requirements and inspect related valve train components for wear before reassembly. Always compare the removed part to the MPR-378 specification to ensure correct application.

Quality Assurance

Melling manufactures this push rod to stringent specifications using quality materials and controlled production processes. The MPR-378 is part of Melling’s broad push rod offering for standard and performance engine applications.