My power windows and wipers are acting wonky on my 1990 Vanagon. Could this Load Reduction Relay be the culprit?

It's definitely possible! This 40-amp, 4-terminal Load Reduction Relay, sometimes called an x-contact relay, is a common failure point for several circuits in your Vanagon, including windshield wipers, fresh air fan, rear defogger, A/C, and power accessories like your windows and mirrors. If these systems are cutting out or not working reliably, especially when other high-draw items are on, this relay is a prime suspect for replacement. It's designed to manage the load on these specific circuits.

What exactly does this 'Load Reduction Relay' do in my Vanagon's electrical system?

Think of this relay as a smart switch for your Vanagon's electrical system. It's specifically designed to handle the power demands of circuits like your wipers, fresh air fan, rear defogger, A/C, power mirrors, and power windows. By managing the load, it helps prevent overloading the electrical system, especially when multiple accessories are running. If yours has failed, you might notice intermittent or complete failure of these particular functions. This is a critical component for keeping those convenience features working.

Will this 40-amp Load Reduction Relay fit my 1987 Vanagon Westfalia?

Yes, this Load Reduction Relay is designed to fit 1986-1991 Vanagon models, including both 2WD and 4WD variants like your Westfalia. It's a direct replacement for the original x-contact relay that controls key circuits such as wipers, the fresh air fan, rear defogger, A/C, and power options. As long as your Vanagon falls within those years, this should be the correct relay you're looking for to bring those functions back to life.

My original relay is blue, but the product image shows a different color. Will this Load Reduction Relay still work?

Don't worry about the color! The function of the relay is what matters, not its appearance in terms of color. This 40-amp, 4-terminal Load Reduction Relay is engineered to fit your 1986-1991 Vanagon and serves the same purpose as the original component. The color might vary between manufacturers or production runs. As long as your existing relay is failing and controlling circuits like wipers, fans, or power windows, this replacement relay will do the job.

Load Reduction Relay

Product:	191-937-503
Works With:	1986-1991
Manufacturer:	Quality Aftermarket
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Proposition 65: This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm.

This relay, sometimes called an "x-contact relay," is 40 amp, 4 terminals.

This relay generally affects the following circuits:

Windshield wipers
Fresh air fan
Rear window de-fogger
A/C
Power mirrors
Power windows
Any aftermarket accessories that may have been added to the circuit

*Color may vary

Reference numbers can be OE part numbers, superseded part numbers, and compatible part numbers. We provide this information to help ensure you're getting the right part for your needs.

191-937-503
191937503

Load Reduction Relay

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