Will Reese Rail Kit RP56015-53 Fit 2025 GMC Sierra 1500 Crew Cab With 5-3/4' Bed?

Updated 02/27/2025 | Published 02/24/2025

Question:

2025 GMC SIERRA 1500 CREW Cab with THE 5and3/4foot bed. Using a CURT Crosswing rail Mount 5th wheel hitch. Will have a Sidewinder connection on my 5th wheel. Question is will the Reese part RP56015-53 Custom install brackets and rails fit this truck? Need to know before I buy this truck. Thank you.

asked by: John W

Helpful Expert Reply:

Hello John, thanks for getting in touch. Yes, the Reese Quick-Install Custom Outboard Installation Kit w/ Base Rails for 5th Wheel Trailer Hitches # RP56015-53 will indeed fit the 2025 GMC Sierra 1500 Crew Cab with the 5-3/4' bed. The kit comes with the rails, frame brackets and all necessary hardware. They are industry standard 5th wheel rails, so they will be compatible with the Curt CrossWing.

Reply below and let me know if you need anything else.

expert reply by: Jesse M

RP56015-53 Kit Components
(click to enlarge)

John W.

2/26/2025

Will,the Reese rail kit # RP56015-53 STILL FIT MY 2025 Sierra 1550 crew cab shortbed 5.8" box if it has this added option? " Adaptive Cruise Control " Thank you.

Jesse M.

2/27/2025

@JohnW Glad you mentioned that, because no, it will not. Since you have the adaptive ride control, use the B&W # BWRVK2504 instead. This is a full rail and install kit just like the Reese, only this uses a different style of frame bracket and it will be compatible with the ARC.