SKU: FPE-HAR-MU-PT-1 | UPC: 670875718128
Fleece Performance 17-22 GM 2500/3500 L5P Duramax Sensor Connector w/4.5in Pigtail
This Fleece Performance sensor connector pigtail replaces damaged OEM connectors on 2017-2022 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks with L5P 6.6L Duramax diesel. The 4.5-inch pigtail supports splicing for MAP or fuel rail pressure sensor repairs. It ensures accurate electrical connections for reliable engine performance and monitoring.
Key Features
- 4.5in Pigtail Length: Provides enough length for straightforward splicing into harnesses without extra wire clutter.
- OEM-Style Connector: Matches factory specs for direct plug-and-play installation on L5P Duramax sensors.
- High-Quality Wiring: 18-gauge TXL automotive wire resists heat oil and vibration for lasting reliability.
- Multi-Use Design: Works with L5P MAP TMAP and fuel pressure sensors for multiple repair applications.
- Pre-Terminated Ends: Factory-crimped terminals deliver secure connections immediately upon unpacking.
Product Notes
- Inspect harness for damage before installation to fix root causes of connector issues.
- Apply dielectric grease to terminals for protection against corrosion.
- Handle carefully to prevent bending pins that lead to signal problems.
Installation Notes
- Professional installation recommended.
- Cut damaged connector leaving 4.5in stub then solder and heat-shrink new pigtail for waterproof seal.
- Compatible with factory harness no additional hardware required.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017-2022 | Chevrolet | Silverado 2500 HD | w/ 6.6L L5P Duramax |
| 2017-2022 | Chevrolet | Silverado 3500 HD | w/ 6.6L L5P Duramax |
| 2017-2022 | GMC | Sierra 2500 HD | w/ 6.6L L5P Duramax |
| 2017-2022 | GMC | Sierra 3500 HD | w/ 6.6L L5P Duramax |
Why Choose Fleece Performance?
- Over 20 years specializing in Duramax diesel components.
- Engineered and tested for real-world heavy-duty use.
- Precision wiring meets or exceeds OEM standards.
Frequently Asked Questions
-
Q: Will this fit my 2019 Silverado 3500HD L5P Duramax?
A: Yes it directly replaces sensor connectors on all 2017-2022 GM HD trucks with L5P 6.6L Duramax diesel engines. -
Q: What wire gauge and materials are used?
A: 18-gauge TXL automotive wire with OEM-style nylon connectors and copper terminals for maximum conductivity and durability. -
Q: What is the warranty and install difficulty?
A: Backed by Fleece 1-year warranty. Basic soldering skills required takes 30-60 minutes per connector.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Protective poly bag in 6in x 4in x 1in box
- Weight: 0.2 lbs
Fleece Performance
Fleece Performance Engineering has grown from a small Indiana operation into one of the most respected names in high-performance diesel upgrades, with a product catalog built specifically around the Duramax and Cummins common rail diesel platforms that dominate the high-horsepower diesel community. Founded by brothers Brayden and Chase Fleece in a rural west-central Indiana pole barn, the company established itself as a technology leader in common rail injection systems within five years, developing the Cheetah turbocharger line and the TurboBrake electronic exhaust brake that have become standard references for what diesel performance engineering can achieve. Fleece operates from an 18,750-square-foot Brownsburg, Indiana facility capable of in-house design, manufacturing, assembly, and testing, placing them among the high-output diesel specialists who supply race teams and serious street performance builds. This collection covers Fleece Performance's full range of Duramax and Cummi...
View Fleece Performance Products


