Fleece Performance Fuel Heater Connector

Fleece Performance Fuel Heater Connectors: Built for Diesel Reliability

When a fuel heater connector fails on a diesel truck, cold-weather performance and fuel system reliability are immediately at stake. Fleece Performance Engineering — an Indiana-based manufacturer widely respected in the diesel aftermarket — addresses this vulnerability with precision-made fuel heater connectors built to their exacting in-house standards.

What Makes Fleece Performance Fuel Heater Connectors Different

Unlike sourced or generic replacement parts, Fleece Performance fuel heater connectors are produced entirely in-house at their Pittsboro, Indiana facility. Their manufacturing process includes fully automated wire cutting and terminal crimping to ensure the highest quality replacement parts reach diesel truck owners. This level of process control — the same approach Fleece applies across their entire product line — means consistent, repeatable quality rather than the hit-or-miss reliability of off-the-shelf alternatives.

The flagship connector is a replacement fuel heater and turbo wastegate solenoid electrical connector featuring a 6" pigtail for Cummins engines, and it includes heat-sealable butt-style connectors. The dual-purpose design is one of the most practical aspects of this product: a single part number covers both the fuel heater circuit and the turbo wastegate solenoid circuit, reducing the number of parts a technician needs to keep on hand.

Fitment & Applications

Applications include the 2000–2007 RAM with the 5.9L Cummins fuel heater, the 2013–2018 RAM with the 6.7L Cummins fuel heater, and the 2004.5–2007 Cummins 5.9L turbo wastegate solenoid. For Cab & Chassis owners adding an optional fuel heater to a Fleece under-bed filter base, the factory wiring isn't long enough to reach the heater connection — this is where a plug-and-play extension harness provides the extra length needed to complete the install properly, with no cutting, splicing, or modifications required. Built to OEM-level quality and designed specifically for Cab & Chassis configurations, the harness ensures reliable electrical connectivity and trouble-free heater operation in any climate.

Quality You Can Trust from a Brand That Earns It

Fleece Performance Engineering is a customer-centric diesel performance company that specializes in the development and manufacturing of innovative products to improve the performance and reliability of Cummins, Duramax, and Powerstroke engines. Many of their products are designed around weak-point correction, cleaner routing, stronger fuel delivery, and better long-term support for daily-driven and towing-focused trucks — and their fuel heater connectors are a perfect example of that philosophy applied to even the smallest components in the system.

Fleece Performance holds ISO 9001:2015 certification , underscoring a commitment to quality management processes that extends across every product they manufacture — from industry-defining Cheetah turbochargers all the way down to essential electrical connectors like these. For Cummins diesel owners who refuse to compromise on build quality, Fleece Performance fuel heater connectors are the definitive OEM-replacement choice.