Recommended Flat Towing Parts for a 2022 Chevrolet Trailblazer
Updated 10/22/2025 | Published 09/26/2025
Products Featured in This Question
Question:
Are RM-146-7 and BX88206 have the same wire pin locations? Is the location of the green, brown, yellow, white etc points to the same pin locations? See image below.
asked by: Ronald
(click to enlarge)
Expert Reply:
Hey Ronald. So long as they're installed correctly the Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit item # RM-146-7 and the Blue Ox 7-Wire to 6-Wire, Coiled Electrical Cord item # BX88206 will have the same locations and functions.
It looks like you're looking at flat tow setups for a 2022 Chevrolet Trailblazer. Here's the parts you'll need:
Tow Bar and Safety Chains - etrailer SD Non-Binding Tow Bar for Roadmaster Direct-Connect Base Plates item # e74ZR
Base Plate Kit - Roadmaster Direct-Connect Base Plate Kit - Removable Arms item # RM35FR if you have the L, LS, LT, or ACTIV models or item # RM46VR if you have the RS model
Wiring Harness - Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit item # RM26FR if you have the L, LS, or LT models or item # RM38FR if you have the ACTIV or RS models
Battery Disconnect Switch - Roadmaster Automatic Battery Disconnect with Switch item # RM-766
Supplemental Braking System - SMI Stay-IN-Play DUO Supplemental Braking System item # SM99251 or item # SM99243 if your motorhome has air brakes
High Low Adapter - The tow bar needs to be within 3" of level. If you measure the height of the inside top of the hitch receiver tube on your RV, and the height difference is more than 3 inches above/below the base plate tab height, you'll need a high/low adapter. I have linked a FAQ article that explains all this in more detail along with our selection of adapters.
What kind of motorhome do you have? You can add this information and any other questions you have where it says Reply to Jerred H and I'll be happy to answer them.
Product Page this Question was Asked From
Roadmaster 7-Wire to 6-Wire Flexo-Coil Kit
- Accessories and Parts
- Flat Tow Wiring Harness
- Adapters
- 7 Round - Blade to 6 Round
- Coiled Cord
- Roadmaster
more information >
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Jerred H.
10/22/2025
Hey Ronald, did the wiring between the Roadmaster and Blue Ox cords line up the way you expected? Knowing how the pin locations matched could really help others setting up their flat tow wiring.