Can I Use the Mopar M20 5th Wheel Hitch with a Reese Sidewinder?
Question:
Does the Reese hitch come so I do not have to use a rail system and an adapter. I liked the way the Curt Q20 attached to the factory prep. Thanks so much for your input.
asked by: Gary W
Helpful Expert Reply:
Unfortunately the Mopar M20 hitch you have is the same hitch as the Curt Q20, which has a spherical axial bearing to improve the pivoting of the hitch head; because of this 360-degree pivot, it is not compatible with a pivoting pin box like the Reese Sidewinder # RP34FR. It is not possible to lock out the head with any type of wedge, so there would be two pivot points in the towing setup, which would not work.
Because of the shorter bed in your 2019 Ram 3500, you do need either a sliding hitch or rotating pin box like the Sidewinder. For this reason I recommend switching to Reese M5 5th Wheel Trailer Hitch - Single Jaw - 20,000 lbs # RP30918 which is compatible with Sidewinder pinboxes like the # RP34FR. You would likely be able to sell your Mopar hitch to cover the cost of this and using a Sidewinder pin box is going to provide you with more clearance from the truck cab than if you were to use a slider hitch instead- but you will need to have one of those two components to safely tow a 5th wheel trailer with your 2019 Ram 3500 short box.
Gary
12/2/2019
Does the Reese hitch come so I do not have to use a rail system and an adapter. I liked the way the Curt Q20 attached to the factory prep. Thanks so much for your input.
Products Referenced in This Question
Reese M5 5th Wheel Trailer Hitch for Ram Towing Prep Package - Single Jaw - 20,000 lbs
- Fifth Wheel Hitch
- Fixed Fifth Wheel
- OEM - Ram
- 20000 lbs GTW
- Premium - Single-Hook Jaw
- 14 - 18 Inch Tall
- Reese
more information >
Product Page this Question was Asked From
Reese Sidewinder 5th Wheel King Pin with Rotating Turret - 20,000 lbs
- Fifth Wheel King Pin
- Upgraded Pin Box
- Provides Turning Clearance
- 20000 lbs GTW
- Rotating Turret
- Fabex 663
- Fabex 665
- Lippert 0719
- Lippert 1621
- Lippert 1621HD
- M and M 663
- M and M 665
- Lippert Rhino
- Reese
more information >
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Gary W.
1/31/2020
I purchised the sidewinder 5th wheel king pin with rotating turret-19,000 Ibs.-RP61421 & I really like it , but it did not come with the lockout bolts. two each-3/4-10x9 bolts with flat & lock washers & 3/4 x 10 hex nuts. Can I buy them through e-trailer ?Gary W