Holley Dual Pump Module Relay Kit

2005–2020 Chrysler 300 / 2008–2020 Dodge Challenger / 2011–2018 Dodge Challenger SRT / 2015–2020 Dodge Challenger SRT Hellcat / 2006–2020 Dodge Charger / 2015–2020 Dodge Charger SRT Hellcat

12-759

Overview:

The Holley Dual Pump Module Relay Kit is a comprehensive wiring solution designed specifically for vehicles equipped with twin fuel pump modules. Tailored for Chrysler 300, Dodge Challenger, and Dodge Charger models from 2005 through 2020, this kit ensures reliable and efficient electrical connections for dual pump setups. Whether upgrading or replacing your fuel system wiring, this relay kit provides a professional-grade installation that enhances pump performance and longevity.

Ideal for enthusiasts and professional installers alike, the kit simplifies the wiring process by including all necessary components to properly power and protect dual fuel pumps. This ensures consistent fuel delivery under demanding driving conditions, making it a perfect choice for performance builds or factory replacement upgrades.

Key Features:

This relay kit offers a complete wiring solution with high-quality components engineered for durability and ease of installation. Key features include:

• Includes all essential parts to wire twin pump Mustang (12-153/12-175) or Challenger/Charger (12-154/12-176) modules
• Two premium HELLA 40A relays for reliable power switching and protection
• Relay sockets with 10-foot wire lengths for flexible routing and installation
• Heavy-duty 12-gauge primary wires to handle high current loads safely
• 16-gauge secondary signal wires for accurate relay activation
• Heat shrink sealing connectors included for secure, weather-resistant wiring connections
• Two fuse holders with 30A fuses, providing dedicated circuit protection for each pump
• Designed specifically for Chrysler 300, Dodge Challenger, and Dodge Charger dual pump applications

Construction & Design:

The Holley Dual Pump Module Relay Kit is engineered with durability and reliability in mind. The use of HELLA 40A relays ensures robust electrical switching capable of handling the demands of high-performance fuel pumps. The included relay sockets and wiring are constructed with high-quality materials, including 12-gauge primary wires that provide excellent current capacity and minimal voltage drop.

Heat shrink sealing connectors are supplied to protect all wiring connections from moisture, corrosion, and vibration, ensuring long-term reliability in harsh automotive environments. The 10-foot wire lengths offer ample flexibility for clean and professional installations without the need for additional extensions or splicing.

Installation & Fitment:

Installation of the Holley Dual Pump Module Relay Kit is straightforward and designed to integrate seamlessly with factory or aftermarket twin pump modules for Chrysler 300, Dodge Challenger, and Dodge Charger models from 2005 to 2020. The kit’s comprehensive wiring components and connectors simplify the process, reducing installation time and potential wiring errors.

All wiring is pre-sized and color-coded for easy identification, and the included fuse holders with 30A fuses provide essential circuit protection for each pump. This kit is compatible with specific twin pump modules referenced as Mustang (12-153/12-175) and Challenger/Charger (12-154/12-176), ensuring proper fitment and function.

What's Included:

• Two HELLA 40A relays
• Two relay sockets with 10-foot wire lengths
• 12-gauge primary wiring
• 16-gauge secondary signal wiring
• Heat shrink sealing connectors for all wiring connections
• Two fuse holders
• Two 30A fuses (one for each pump)

Ideal For:

This relay kit is ideal for automotive enthusiasts, professional installers, and performance builders who require a reliable and efficient wiring solution for dual fuel pump setups in Chrysler 300, Dodge Challenger, and Dodge Charger vehicles. It is especially suited for those upgrading fuel systems for enhanced performance, ensuring consistent fuel delivery and electrical protection under demanding conditions.

Holley is a cornerstone name in performance, spanning everything from classic carburetion to modern EFI, fuel systems, and race-ready supporting components. It’s also home to a roster of iconic sub-brands across ignition, exhaust, and drivetrain—making Holley a one-stop ecosystem for builders chasing better drivability, more power, and proven track heritage.