Moderate — 2–4 hours
Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Hidden Hitch |
| Part Number | H03O ST400 |
Videos
REESE® Sidewinder™ Installation - RV Pin-Box for Short Bed Trucks - No Slider Needed!
REESE® Sidewinder™ Pin Box - For Short Bed Pickups - 69220 - Direct Pin-Box Replacement
Ditch the Slider: Ultimate Short Bed Solution! REESE® Sidewinder Pin Box - 69220
Reese Sidewinder Pros & Cons Part II
Hooking up a Fifth Wheel with the REESE SIDEWINDER And M5 HITCH - Full Time RV Life
Reese Sidewinder Pros & Cons
Installation: How to Install the REESE® Sidewinder™ Fifth Wheel Pin Box
REESE® Sidewinder™ - The Ultimate Short Bed Towing Solution - Automatic Worry-Free Short Bed Towing
Denali Diesel truck 90 degree turn with Reese sidewinder fifth wheel pin box
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy