Availability of Load Resistors for 2003 Ram 2500 Towing Boat Trailer

Updated 04/02/2026 | Published 03/28/2026

Products Featured in This Question

Load Resistor Kit for LED Turn Signals - 50 Watts - 6 Ohm - Qty 2

(36)

$12.18

Peterson Load Resistor Harness for LED Turn Signals - Male and Female PL-3 Plug - 50 Watt - 10 Ohm

(6)

$24.43

Question:

i have an 03 ram 2500 diesel PU and my factory 7 way connector does not work with my LED boat trailer lights, i hear i need a pigtail resistor for my truck to use LEDs? can you help me find this product?

asked by: Jason M

Expert Reply:

Hey Jason! What you can do is add load resistors on the trailer side # DI34ZR. This is the most cost effective and permanent fix for the issue. They will wire into the left and right turn/brake circuits to simulate the draw of incandescent lights so your truck reads everything correctly.

You can use the pigtail like the # 421-491RS you looked at as well but you will need one for each light, and you have to match the type of connector used on the light. If you don't mind a little splicing with the quick splices the # DI34ZR is still the way to go.

What kind of boat trailer do you have?

expert reply by: Robin H