
72 inch (6 ft) PMD Harness Extension for 6.5L Diesels
72 in Extension Harness for 6.5L GM Diesel PMD/FSD Relocation
72" extension harness connects the original PMD/FSD wiring harness to a relocated PMD. The length of this extension permits a wide range of relocation options. This extension harness is compatible with all black PMD/FSD units; it will not work with gray PMDs.
The PMD (Pump Mounted Driver), also referred to in some instances as the FSD (Fuel System Driver), is the Achilles heel of the 6.5L GM diesel. As such, relocation of the PMD is quite common and relocating options are plentiful. This 72" harness permits PMD relocation to a variety of locations. The PMD/FSD is mounted to the driver side of the Stanadyne DS4 injection pump on turbocharged 6.5L GM diesels. A tremendous amount of heat is generated as it intensifies the signal from the powertrain control module to the fuel solenoid. During normal operation, the flow of diesel fuel is used as a coolant and, in theory, prevents the module from overheating. However, underhood temperatures and the heat generated by the engine itself often prevent proper cooling and cause the PMD to fail prematurely. Additionally, a "heat soak" effect occurs when a hot engine is shutdown and the temperature of the PMD can increase considerably beyond its design limits, further contributing to a shortened service life and intermittent operation.
As a result of the inherent problems with the PMD/FSD location, it is common for 6.5L GM diesel owners to move the PMD to a more ideal location where a cooling effect is encouraged and the heat soak effect is either reduced of eliminated. Common relocation placements include the front bumper, near the battery box, against the firewall, or similarly isolated locations. We highly suggest researching various relocation options and their inherent advantages/disadvantages before making a final decision.
FEATURES
- Made in USA
- 72 inch (6 feet) overall length
- Aircraft grade, high temperature wire
- Soldered terminals
APPLICATIONS
Fits all black PMDs; NOT compatible with gray PMDs
1994 - 2002 Chevrolet Silverado 1500/2500/3500 (6.5L diesel)
1994 - 1999 Chevrolet Suburban/Tahoe (6.5L diesel)
1994 - 2002 GMC Sierra 1500/2500/3500 (6.5L diesel)
1994 - 1999 GMC Yukon (6.5L diesel)
ADDITIONAL PRODUCT DETAILS
| Manufacturer: | REID TEKK |
| Part Number(s): | RT-250101 |
| Origin: | USA |
| Warranty: | 1 year, unlimited mileage |
| Shipping Weight: | 7 oz |
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72 inch (6 ft) PMD Harness Extension for 6.5L Diesels
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Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.

