Melling Performance 10342 - High Pressure Oil Pump for 5.7L and 6.1L Mopar Engines

Description

Made in the USA to the highest production standards, Melling high-performance oil pumps deliver dependable lubrication and maximum durability under the toughest RPM conditions. Sized specifically as a high-pressure performance upgrade for Chrysler, Dodge, Jeep, and Ram 5.7L and 6.1L Gen III Hemi engines, the Melling 10355 oil pump is a standard-volume upgrade over the OEM-style M355 pump. Constructed with an anodized hard-coated aluminum body and a phosphate-coated cast iron cover, it significantly reduces internal friction and maximizes pump wear resistance under heavy valvetrain loads. The internal pressure relief valve features a serviceable threaded screw-in plug rather than a standard press-fit cup plug, allowing users to customize bypass pressure via the included optional spring. Complete with replacement oil pump body and pickup screen mounting seals, every pump is individually flow- and pressure-tested under simulated operating conditions to ensure exceptional reliability out of the box.

Features & Technical Highlights:

• High-Pressure Gen III Hemi Upgrade: Delivers increased oil pressure while maintaining standard volume displacement, making it ideal for street performance and race-prepped 5.7L and 6.1L Hemi engines.
• Anodized Hard-Coated Body: CNC-machined cast aluminum housing features a wear-resistant hardcoat anodized finish to prevent bore scoring and ensure tight internal clearances.
• Phosphate-Coated Cast Iron Cover: Heavy-duty cast iron cover plate provides maximum rigidity under high oil pressures and protects against rotor galling.
• Adjustable Pressure Relief Valve: Utilizes a secure, threaded screw-in plug (replacing factory press-fit cup plugs) and includes an interchangeable optional relief spring to adjust bypass pressure.
• Complete Sealing Hardware: Supplied with replacement oil pump and pickup screen mounting seals for a clean, leak-free installation.
• 100% Factory Bench Tested: Every unit is individually flow- and pressure-tested under realistic engine operating conditions prior to packaging.