Blue Ox
21K 5th Wheel Hitch
21K lbs
Max Trailer Weight
5.0K lbs
Max Pin Weight
DIY or Pro?
Installation
Availability
Where to Buy
INOP High Rise Gooseneck
Requires BXR9005 Lockout Kit
About This Product
The Blue Ox BXR2100 is a 21,000-pound fifth wheel hitch that mounts to a standard gooseneck ball. If your truck already has a gooseneck ball installed, this hitch drops onto it and gives you fifth wheel towing capability.
The dual-jaw design grabs both sides of the kingpin when your trailer couples. That creates a centered, secure connection with less side-to-side play than single-jaw hitches. The load distributes more evenly across both jaws.
This is the versatile option for people who tow both gooseneck and fifth wheel trailers. Keep your gooseneck ball in place. Set the hitch on the ball when you need fifth wheel capability. Lift it off when you do not.
Blue Ox builds this hitch in the USA with heavy-duty steel construction. The pivoting head handles bumps and turns smoothly. Works with standard 2-5/16 inch gooseneck balls.
Compatibility
Fits These Trucks
Chevrolet
| Model | Years | Bed Length | Bed Prep | |
|---|---|---|---|---|
| Silverado 2500 | 2003 - Present | Long Bed | Gooseneck | All options → |
| Silverado 3500 | 2003 - Present | Long Bed | Gooseneck | All options → |
Dodge
| Model | Years | Bed Length | Bed Prep | |
|---|---|---|---|---|
| Ram 2500 | 2003 - 2009 | Long Bed | Gooseneck | All options → |
| Ram 3500 | 2003 - 2009 | Long Bed | Gooseneck | All options → |
Ford
| Model | Years | Bed Length | Bed Prep | |
|---|---|---|---|---|
| F-250 | 2003 - Present | Long Bed | Gooseneck | All options → |
| F-350 | 2003 - Present | Long Bed | Gooseneck | All options → |
GMC
| Model | Years | Bed Length | Bed Prep | |
|---|---|---|---|---|
| Sierra 2500 | 2003 - Present | Long Bed | Gooseneck | All options → |
| Sierra 3500 | 2003 - Present | Long Bed | Gooseneck | All options → |
Nissan
| Model | Years | Bed Length | Bed Prep | |
|---|---|---|---|---|
| Titan | 2004 - 2019 | Long Bed | Gooseneck | All options → |
| Titan XD | 2017 - 2018 | Long Bed | Gooseneck | All options → |
RAM
| Model | Years | Bed Length | Bed Prep | |
|---|---|---|---|---|
| 2500 | 2010 - Present | Long Bed | Gooseneck | All options → |
| 3500 | 2010 - Present | Long Bed | Gooseneck | All options → |
Toyota
| Model | Years | Bed Length | Bed Prep | |
|---|---|---|---|---|
| Tundra | 2007 - 2025 | Long Bed | Gooseneck | All options → |
Compare Options
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Got Questions?
Frequently Asked Questions
The 21K 5th Wheel Hitch is compatible with Chevrolet, Dodge, Ford, GMC, Nissan, RAM, Toyota trucks from 2003 to 2025. Use the fitment table above for the complete list of compatible year, model, and bed configurations.
The 21K 5th Wheel Hitch is rated for 21,000 lbs gross trailer weight (GTW) and 5,000 lbs vertical trailer weight (VTW — the pin weight your truck carries). Always verify your truck's tow rating before purchasing.
This hitch is considered DIY-friendly — most owners can install it with basic tools.
The 21K 5th Wheel Hitch is available from Amazon, Blue Ox directly. Use the "Where to Buy" buttons above for current pricing and availability.
The 21K 5th Wheel Hitch has a fixed head — it does not slide. This is the most common setup and works great for standard-length beds. If you have a short bed, verify clearance before purchasing.