Expert Answers about Western Star 4900

• How To Tow a Gooseneck Trailer with Brakes Using a Semi Tractor
• In order to haul your gooseneck trailer with a fleet of semi-tractors you will need to make your own adapter harness which will then make for a plug and play connection but they don't make anything pre-assembled for this out of the box to my knowledge. In order to make the adapter you will need the Pollak Heavy-Duty, 7-Pole, Round Pin, Trailer Wiring Connector part # PK11700, the Roadmaster Brite-Lite Wiring Converter part # RM-732, and the Pollak Black Plastic, 7-Pole, RV Blade-Style Trailer...
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• Can Tekonsha P2 or P3 Brake Controller be Used in Tow Vehicle with Air Brakes
• Yes, since your trailer has electric brakes a P2 part # 90885 or a P3 part # 90195 will work great with your setup. The fact that your tow vehicle has air brakes would not matter as the controllers use the brake light circuit for activation.
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