Check the listing for details. Air Lift Performance Second Compressor Wiring Harness for 3P & 3H System New. Condition: New. Listed at 140.00 USD. Product Information: The standard wiring harness that comes with Air Lift’s 3H and 3P systems is only capable of providing power to a single compressor. There are plenty of reasons why you would want to add a second air compressor to your Air Lift 3P or 3H Air Suspension of choice. However, you're going to need this wiring kit in order to make that happen. This Air Lift 3H / 3P Second Compressor Harness allows you to add a second compressor to your system. Wiring is a breeze thanks to Air Lift’s built in relay holder which makes for an easy installation. Just connect the second compressor signal wire into the original system harness and connect power and ground. -Necessary Kit to Install a Second Compressor -Easy Setup/Installation -Made in the USA Includes the following: (1) Second Compressor Wiring Harness (1) Fuse Holder with 30-Amp Fuse (3) Butt Splice Connectors (2) Eyelet Ring Terminals (1) Self-tapping screw for mounting relay Application: 3P & 3H Systems Shipping:We may either ship through USPS, UPS, or FedEx at our own discretion.Products are usually shipped out Monday – Friday. Please contact us through email for assistance regarding other shipping methods.Return policy: When receiving your package, please open all of the boxes immediately to check if all the contents are inside and not damaged. All damaged or defective items must be reported within 2 business days from the day the packaged is delivered. If the package appears to be damaged on the outside, please refuse to accept it from the carrier; or please make sure when signing the shipper's proof-of-delivery slip, you include a note stating that the package is or appears damaged. If you do accept a damaged shipment, please inform us immediately. Depending on the product and where/how it was shipped, it may be necessary for you to deal with the carrier. If the product received is defective, a replacement will be sent as soon as possible. If you decide to return the defective item, rather than replace it, a restocking fee will be assessed (15-50% depending on the item) and your original shipping and processing charges will not be refunded. Also, returned products must be in its original packaging which allows us to re-sell the product. We will refuse any damaged or products that are not in good condition. If after 30 days of receiving your product, it proves to be defective, we would like for you to deal with the manufacturer. They will inform you on how to proceed based on their policies. If you are unhappy in any way, please contact us through eBay messages. We will provide you instructions on how and where to return the product.