Nelson Performance | Fan Harness

The relays are rated at 40amps and are sealed and water tight; this means no corrosion on the terminals. We also offer an e-fan harness that is a direct replacement for the Flex-a-Lite VSC/Universal fan controller in both the single pcm pin and the dual pcm pin configuration.

There are several ways that a dual fan can be wired. For example, dual thermostat switches or dual relays could be used to control each fan separately. Or a single relay could be used to control both fans. The cooling fan wiring diagram below is what we’ve found to be the simplest and most reliable method. It uses a 40-Amp Electric Relay and ...

PRIMARY COOLING FAN DUAL FANS (with Dual Relays) - SINGLE SPEED (ON/OFF) Using 12 Volt Switched Devices Only for Primary Activation Using dual relays for two fans is not required. You could use one relay. However two relays will divide the load and if a relay fails, you will still have one fan running. PAGE 5 12V SWITCHED WIRE TO GREEN WIRE AT

There are several ways that a dual fan can be wired. For example, dual thermostat switches or dual relays could be used to control each fan separately. Or a single relay could be used to control both fans. The supplied diagram is both the most reliable and easiest method I’ve found. It uses our 40-Amp Electric Relay Kit, part number 91064044 ...

Blue Wire (+) Black Wire (-) To chassis ground (-) Diagram #1 KIT CONTENTS QTY. DESCRIPTION 2 Relay Wire Harness 2 40/60 Amp Relay TOOLS NEEDED Wire Stripper Crimping Tool IMPORTANT Each Relay will control up to two different fans with a COMBINED MAXIMUM DRAW OF 25 CONTINUOUS AMPS. Relay #2 Electric Fan #1 Electric Fan #2 87 87A 30 86 85 Orange ...

A relay kit, our part number CCFKRL, will include everything you need to properly wire up your electric cooling fans, with the exception of additional wiring needed to complete all of the circuits. The first part of the installation is to install the electric fan to your radiator, and remove the mechanical fan.

8. Route the 2 groups of 12 gauge wires labeled “Fan #1/Low” and “Fan #2/High” from the relay to the electric fan motors. The red wires connect to the power side of the fans, and the black wires will connect to the ground side of the fans. The connectors provided with the kit fit the popular General Motors LT1/LS1 dual fan assembly.

In the Painless Performance electric fan relay kit we got from Speedway Motors, a circuit breaker is supplied if you wanted to safely get power directly from the battery. We opted to tap into our ...

Using a #10 Blue Ring Terminal provided attach BOTH Negative (-) electric fan leads to a good chassis ground (-). Reattach the Negative (-) cable on the vehicles battery. (Continues on reverse side) Derale Performance, Los Angeles, CA 800.421.6288 www.derale.com...

The fan harness form is for orders only. Our fan harness is available for truck owners who use the LS1/LT1 style Camaro fans, Flex-alite or universal fans, and the new 2005 OEM truck fans. Our fan harness works with all vehicles 1999-2006 with the 4.8L, 5.3L, and the 6.0L. Note: Fan activation is required in order for the fans to operate properly.