Melling Engine Expansion Plug Kit MDS Delete (F&R): Fits Chrysler / Dodge / Jeep / Ram (02-26)
Melling Engine Expansion Plug Kit MDS Delete (F&R): Fits Chrysler / Dodge / Jeep / Ram (02-26)
Melling Engine Expansion Plug Kit
2002–2026 Chrysler, Dodge, Jeep, Ram 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L Hellcat & Trackhawk
MEP-337
Overview:
The Melling Engine Expansion Plug Kit (MEP-337) is a precision-engineered solution designed specifically for Gen 3 HEMI engines found in a wide range of Chrysler, Dodge, Jeep, and Ram vehicles. This kit is ideal for enthusiasts and professionals performing an MDS (Multi-Displacement System) delete, providing a reliable way to block off the oil galley passages after removing the MDS solenoids. By installing these high-quality block off plugs, you ensure proper engine function and prevent oil leaks or pressure loss associated with the removal of factory MDS components.
Manufactured in the USA, this kit offers durable, long-lasting performance that meets or exceeds original equipment specifications. It is the perfect upgrade for those seeking a clean and effective MDS delete without compromising engine integrity.
Key Features:
Designed for optimum fit and function, the Melling MEP-337 kit delivers dependable performance and ease of installation. Key features include:
- Precision engineered for a perfect fit on Gen 3 HEMI engines
- Manufactured from high-quality materials for consistent durability
- Designed to withstand long-term wear and engine conditions
- Meets or exceeds original equipment manufacturer (OEM) specifications
- Provides a secure seal to block oil galley passages after MDS solenoid removal
- Includes all four block off plugs required for a complete MDS delete
- Made in the USA for assured quality and reliability
Construction & Design:
The Melling expansion plugs are crafted from premium materials engineered to endure the demanding environment inside the engine block. Their robust construction ensures a tight, leak-proof seal within the oil galley passages, preventing oil pressure loss and maintaining engine performance. The plugs are precision machined to exact tolerances, guaranteeing a seamless fit that aligns perfectly with the Gen 3 HEMI engine architecture.
Attention to detail in manufacturing and material selection results in a product that offers long-lasting durability and worry-free operation, even under high-temperature and high-pressure conditions typical of performance engines.
Installation & Fitment:
Installing the Melling MEP-337 kit is straightforward for anyone familiar with engine maintenance or upgrades. The process involves removing the factory MDS solenoids from the engine block and replacing them with the supplied block off plugs. No additional modifications or machining are required, making this an efficient and clean solution for MDS delete applications.
This kit is compatible with a broad range of vehicles equipped with Gen 3 HEMI engines, including various Chrysler 300 models (2005–2024), Dodge Ram trucks (2002–2026), Dodge Durango (2004–2026), Dodge Charger and Challenger models (2006–2023), Jeep Grand Cherokee and Wrangler (2005–2026), and Ram 1500, 2500, and 3500 trucks (2011–2026).
What's Included:
- Four high-quality oil galley block off plugs
- Complete kit ready for MDS delete installation
Ideal For:
This Melling Engine Expansion Plug Kit is ideal for performance enthusiasts, mechanics, and tuners who want to perform a reliable MDS delete on Gen 3 HEMI engines. It suits those looking to eliminate the MDS system for improved engine response, simplified maintenance, or compatibility with aftermarket tuning solutions. The kit is also perfect for anyone seeking a durable, OEM-quality replacement for factory MDS solenoid plugs.

Description
Melling Engine Expansion Plug Kit
2002–2026 Chrysler, Dodge, Jeep, Ram 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L Hellcat & Trackhawk
MEP-337
Overview:
The Melling Engine Expansion Plug Kit (MEP-337) is a precision-engineered solution designed specifically for Gen 3 HEMI engines found in a wide range of Chrysler, Dodge, Jeep, and Ram vehicles. This kit is ideal for enthusiasts and professionals performing an MDS (Multi-Displacement System) delete, providing a reliable way to block off the oil galley passages after removing the MDS solenoids. By installing these high-quality block off plugs, you ensure proper engine function and prevent oil leaks or pressure loss associated with the removal of factory MDS components.
Manufactured in the USA, this kit offers durable, long-lasting performance that meets or exceeds original equipment specifications. It is the perfect upgrade for those seeking a clean and effective MDS delete without compromising engine integrity.
Key Features:
Designed for optimum fit and function, the Melling MEP-337 kit delivers dependable performance and ease of installation. Key features include:
- Precision engineered for a perfect fit on Gen 3 HEMI engines
- Manufactured from high-quality materials for consistent durability
- Designed to withstand long-term wear and engine conditions
- Meets or exceeds original equipment manufacturer (OEM) specifications
- Provides a secure seal to block oil galley passages after MDS solenoid removal
- Includes all four block off plugs required for a complete MDS delete
- Made in the USA for assured quality and reliability
Construction & Design:
The Melling expansion plugs are crafted from premium materials engineered to endure the demanding environment inside the engine block. Their robust construction ensures a tight, leak-proof seal within the oil galley passages, preventing oil pressure loss and maintaining engine performance. The plugs are precision machined to exact tolerances, guaranteeing a seamless fit that aligns perfectly with the Gen 3 HEMI engine architecture.
Attention to detail in manufacturing and material selection results in a product that offers long-lasting durability and worry-free operation, even under high-temperature and high-pressure conditions typical of performance engines.
Installation & Fitment:
Installing the Melling MEP-337 kit is straightforward for anyone familiar with engine maintenance or upgrades. The process involves removing the factory MDS solenoids from the engine block and replacing them with the supplied block off plugs. No additional modifications or machining are required, making this an efficient and clean solution for MDS delete applications.
This kit is compatible with a broad range of vehicles equipped with Gen 3 HEMI engines, including various Chrysler 300 models (2005–2024), Dodge Ram trucks (2002–2026), Dodge Durango (2004–2026), Dodge Charger and Challenger models (2006–2023), Jeep Grand Cherokee and Wrangler (2005–2026), and Ram 1500, 2500, and 3500 trucks (2011–2026).
What's Included:
- Four high-quality oil galley block off plugs
- Complete kit ready for MDS delete installation
Ideal For:
This Melling Engine Expansion Plug Kit is ideal for performance enthusiasts, mechanics, and tuners who want to perform a reliable MDS delete on Gen 3 HEMI engines. It suits those looking to eliminate the MDS system for improved engine response, simplified maintenance, or compatibility with aftermarket tuning solutions. The kit is also perfect for anyone seeking a durable, OEM-quality replacement for factory MDS solenoid plugs.






















