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Includes four diode blocks and 12 spade terminals
Includes four diode blocks and 12 spade terminals
Installation Time Exact (Minutes): 0
This kit allows a motorhome or RV dinghy-towing a vehicle to power the signal lights only on the towed vehicle without power feeding back to the RV or feeding to the rest of the towed vehicle's electrical system. It is rated for 3 amps max per diode block and 24V max per diode block. This kit requires a trailer-side 4-way flat connector plug with 20' wires (such as the CURT #57220) or similar, depending the length of the towed vehicle.
CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
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The RV Harness Diode Block Kit is used to connect the brake and taillight wiring of a towed vehicle to an RV or towing vehicle. It includes diode blocks that manage the electrical signals from the towed vehicle's tail, stop, left turn, and right turn lights, and requires a separate 4-wire flat connector (part #48245, sold separately) to complete the installation.
The manual does not specify vehicle compatibility or exclusions. Contact Curt Manufacturing at 877.287.8634 or curtmfg.com to confirm fitment for your specific towed vehicle before purchasing.
The kit includes diode blocks. The 4-wire flat connector (part #48245) is sold separately and must be purchased to complete the installation. The manual does not specify other included hardware or components.
You will need a wire cutter and a crimping tool to cut the brake and taillight wires and crimp spade terminals onto them. The manual does not specify the exact type or size of crimping tool required.
1. Locate the brake and taillight wires at the rear of the towed vehicle. 2. Cut and crimp spade terminals on each wire. 3. Insert the diode blocks. 4. Install and crimp the remaining 4-wire flat wires. All steps must be followed to ensure the harness functions properly.
GD (white wire) = Ground; TM (brown wire) = Tail; LT (yellow wire) = Left turn; RT (green wire) = Right turn; VS = Vehicle stop. The diagram shows that A is the driver side stop light assembly and B is the passenger side stop light assembly.
The battery connection must be fuse-protected with a maximum 10-amp fuse. Exceeding this rating can cause loss of warranty, overheating, and potential fire. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower.
The manual states that you must not exceed the product rating or the tow vehicle lamp load rating, whichever is lower, but does not specify the product's maximum lamp load rating. Contact Curt Manufacturing at 877.287.8634 for this specification.
Test for proper function by using a test light or by connecting a properly wired trailer to the towed vehicle. The manual does not provide detailed testing procedures beyond this.
The manual does not specify vehicle compatibility. Contact Curt Manufacturing at 877.287.8634 or visit curtmfg.com to confirm fitment for your towed vehicle.
The 4-wire flat connector (part #48245) is sold separately and is required to complete the installation.
You need a wire cutter and a crimping tool to cut wires and crimp spade terminals. The manual does not specify exact tool types or sizes.
A 10-amp maximum fuse is required for the battery connection. Exceeding this rating can cause overheating and fire.
Yes. You must cut and crimp spade terminals on the brake and taillight wires at the rear of the towed vehicle as part of the installation process.
Test for proper function using a test light or by connecting a properly wired trailer. All installation steps must be followed to ensure the harness functions properly.
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