Description
Nelson Performance manufactures every harness we sell in our shop in San Antonio, Texas USA. Texans know heat and we know the amount of draw/load that heat puts on your engine! Remove the stock mechanical clutch fan assembly and replace it with an electric fan assembly. This conversion frees up horsepower and leads to cooler engine and ac temps!
Don’t be fooled by inexpensive knock offs!
All our electric fan harnesses are made in the USA.
We use high-temp resistant TXL wiring that is rated at 260 degrees.
NP harnesses come with (3) 50 amp high-quality relays with resistors.
Our relay blocks are sealed with TPA retainers, meaning they are water/corrosion resistant.
All terminals are crimped using OEM (Original Equipment Manufacturer-General Motors) tooling.
All eyelet terminals are quality crimped and soldered.
We use 8 gauge TXL power wires that are rated at 260 degrees.
We now use a 60 amp J-case fuse with a water sealed case.
This e-fan harness is for 2003 to 2007 Classic Body Style GM truck/suvs that have a mechanical clutch fan and are wanting to convert to an ’05+ e-fan assembly using the wider 34″ radiator. Note: The majority of the 1/2ton trucks had the narrower 28″ wide radiator.
To determine if you have selected the correct harness, take some time to view the pictures and identify the e-fan connector type that matches your e-fan assembly.
joshua (verified owner) –
This harness is built correct!👍 unlike the $35 Amazon specials that melt fuse holders or burn up after 20 ish minutes! Thanks ya’ll!!! 🙏
Cam –
I’ve purchased several of these harnesses; 2003 Suburban 2500(4 years ago), 2004 Suburban Z71(3 years ago), 2006 Sierra 2500HD(7 years ago). All had 6.0 motors and ALL are still going strong as car haulers/boat haulers. I mainly purchased these kits to keep my transmission cool in the Texas Heat when I would sleep during the day and drive all night. The clutch fans were cooking my fluid while I would sit still in triple digits during the day. I wish I could post pictures of all three vehicles at work with these harnesses working flawlessly.