BCBC MPR-663 Engine Push Rod

Engine Push Rod Overview

The Melling MPR-663 is a standard replacement engine push rod built for stock valve train applications. It is made in the USA and uses welded steel construction with drilled design details for consistent operation in compatible engines.

This push rod is a direct-fit service part for a range of Jeep, Chrysler, and Dodge applications, including Jeep Wrangler, Chrysler Town & Country, and Dodge Grand Caravan models. The MPR-663 part number is also referenced as PR-663 in interchange listings.

Key Features

• Welded steel construction for standard replacement use.
• Ball-end top and bottom tips for valve train contact.
• 0.312-inch tip diameter and 5.31-inch overall length.
• Drilled design for engine service applications.
• Made in the USA by Melling.

Detailed Description

Melling MPR-663 is intended for stock engine builds that require a standard replacement push rod with the correct geometry and dimensions. Melling recommends replacing push rods during service to maintain proper valve train geometry and performance, and this part follows that approach with a welded steel body, ball ends, and drilled construction. The MPR-663 is listed for multiple Chrysler, Dodge, and Jeep applications, including Jeep Wrangler, Chrysler Pacifica, Chrysler Voyager, Chrysler Town & Country, Dodge Caravan, and Dodge Grand Caravan. For buyers searching for a Jeep Wrangler push rod or a Chrysler Town & Country engine push rod, this part number provides a fitment-specific option.

Common Uses

• Replacing a worn or bent push rod in a stock valve train.
• Restoring correct valve train geometry after engine service.
• Addressing valvetrain noise caused by damaged push rod components.
• Supporting proper lifter-to-rocker arm motion in compatible engines.
• Servicing Chrysler, Dodge, and Jeep engines that use this dimension and tip style.

Installation Notes and Tips

Verify overall length, tip diameter, and ball-end style before installation. Confirm the engine application against the fitment list for your Jeep Wrangler, Chrysler Town & Country, or Dodge Grand Caravan. Inspect related valve train components for wear before installing the MPR-663, and follow the engine manufacturer’s service procedures during assembly.

Quality Assurance

Melling builds this push rod to stringent manufacturing specifications using quality materials and processes. The brand also notes that it offers push rods for OEM-style and performance applications, including chrome moly options in select lines.