How to Determine Turret For Pin Box For Sidewinder
Updated 12/22/2025 | Published 10/02/2024
Question:
I bought a new Reese 16k sidewinder hitch on marketplace not realizing that there are different size turrets and the one I bought didn’t fit so the mount on my camper is 11-3/4 wide inside diameter and the bolt holes are approximately 7-7/8 apart 6 hole on each side just trying to find wich turret I need to purchase?
asked by: Jeremy B
Expert Reply:
Hi Jeremy,
We don't offer any replacement turrets for Sidewinders like # RP34FR, and I can tell you there aren't any that fit an 11-3/4" wide pin box with bolt holes 7-7/8" apart. There are some that are close, like the Lippert 1621, which has a 12" wide pin box, though you'll need more than that to get the right turret.
You'll also need to know the vertical distance between the bolt holes to get the right one, and for the Lippert 1621 that's 2". I have added a link below to a help article which details the measurements needed and I recommend taking a look at it.
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Trailer Wiring
- Article: Sidewinder with Rotating Turret for Short Bed Pickups
- Video: Hands-On with the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package-C69CR
- Video: How to Install the Curt In Bed Custom Wiring Harness on a 2024 GMC Sierra 2500
- Shop: TorkLift Wiring Harness Extension for 24" SuperTruss Hitch Extender - 7-Way RV
- Shop: Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector - 7' Long
- Shop: Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector
- Shop: Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 4-Way and 7-Pole Connector - 7' Long
- Shop: Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector and Cover Plate - 7' Long
- Shop: Curt 7-Way Trailer Plug Extension - 20"
- Video: Lippert 1621 5th Wheel Pin Box Review
- Article: 4 Steps to Choosing Your 5th Wheel Pin Box
- Shop: Fifth Wheel Hitch
- Video: Best 2024 GMC Sierra 2500 5th Wheel Hitch Fits
- Search Results: fixed turret 5th wheel pin box
- Search Results: reese elite airborne sidewinder
- Search Results: reese turret
- Search Results: reese replacement parts
- Q&A: Will Reese Sidewinder # ST400-SW01 Fit a Lippert 1621 5th Wheel Trailer Pin Box
- Q&A: Replacing the Lippert 1621 Pin Box with Reese Sidewinder 5th Wheel King Pin with Rotating Turret
- Q&A: Replacement Turret Recommendation for Fitting a Sidewinder Arm to a Lippert 1621 Pin Box
- Video: Mount: Lippert 1621HD 5th Wheel Pin Box on a 2010 Starcraft Homestead Fifth Wheel
- Q&A: 16k Reese Sidewinder Replacement for 10k Reese Revolution on 2013 Rockwood Signature Ultralite
- Shop: Lippert 1621SHD 5th Wheel Pin Box - 21,000 lbs
- Q&A: Correct Reese Sidewinder Replacement for Lippert 1621 OEM Pin Box
- Q&A: Hole Dimensions of the Spacer Kit for Sidewinder # RP61301
- Q&A: Replacement Air Ride King Pin for Sidewinder Upgrade from Non-Air Ride Model
- Article: Trailer Wiring Diagrams
- Search Results: trailer hitch
- Shop: Trailer Hitch
on 5th Wheel Pin Box
Robin H.
12/22/2025
Hey Jeremy, were you able to get the vertical bolt hole measurement for your pin box after checking that help article? Knowing what you found could really help others trying to match a turret for their Sidewinder hitch.