Replacement brake Assemblies For A 2015 Grand Design 337RLS

Updated 05/28/2024 | Published 05/17/2024

Question:

I have a 2015 Grand Design 337 RLS and need to replace the Brake assemblies, Which ones are the correct ones?

asked by: Richard P

Expert Reply:

Hello Richard, thanks for reaching out. Your 2015 Grand Design 337 RLS uses two 7,000 lb axles. This means the brake assemblies will be the standard 12" x 2" size with a 5 bolt brake flange. To replace yours I recommend the etrailer Electric Trailer Brakes # AKEBRK-7-SA. This will come with a pair of self-adjusting brake assemblies (left hand and right hand). I like these etrailer brand brakes because they are durable, they perform well, and they are priced lower than other name brand options. I have linked an install video for you below.

expert reply by: Jesse M

Richard P.

5/20/2024

Thank you, Jesse for the response I appreciate it and will be ordering very shortly, Can you tell me if you sell the complete Bearing, Race, Seal, Etc for the (Front and Back for the four wheels drums ) Thank you again, Rick Prow

Jesse M.

5/20/2024

@RichardP Yes we Do! Your axle will use a # 14125A outer bearing and a # 25580 inner bearing. There are two potential seal sizes though. It will either be a 2.125" ID seal or a 2.25" ID. If you can pull one of the hubs it should be easy enough to measure the ID of the seal, or measure the spindle where the seal rides. We sell full bearing kits with both size seals, so for the 2.125" seal it will be part # BK3-210 and for the 2.25" seal it is part # BK3-200.

Richard P.

5/27/2024

@JesseM I pilled the hub and it measures 1.750