DIY or Pro?
Installation
Availability
Where to Buy
About This Product
The B&W ISR Adapter 25K lets you run a fifth wheel hitch on trucks with Industry Standard Rails instead of OEM pucks. Twenty-five thousand pounds of capacity. If your truck has aftermarket rails or came with the older ISR setup, this adapter opens up your hitch options.
The adapter bridges the gap between rail systems and puck-style hitches. Drop in the adapter, then run a Companion or similar hitch on top.
Same quality B&W engineering. Made in USA. Useful when you want puck-mount convenience but your truck has rails.
Check rail compatibility for your specific setup before ordering.
Compatibility
Fits These Trucks
Chevrolet
| Model | Years | Bed Length | Bed Prep | |
|---|---|---|---|---|
| Silverado 2500 | 2020 - Present | Long Bed | Puck System | All options → |
| Silverado 2500 | 2020 - Present | Short Bed | Puck System | All options → |
| Silverado 3500 | 2020 - Present | Long Bed | Puck System | All options → |
| Silverado 3500 | 2020 - Present | Short Bed | Puck System | All options → |
Ford
| Model | Years | Bed Length | Bed Prep | |
|---|---|---|---|---|
| F-250 | 2011 - Present | Long Bed | Puck System | All options → |
| F-250 | 2011 - Present | Short Bed | Puck System | All options → |
| F-350 | 2011 - Present | Long Bed | Puck System | All options → |
| F-350 | 2011 - Present | Short Bed | Puck System | All options → |
GMC
| Model | Years | Bed Length | Bed Prep | |
|---|---|---|---|---|
| Sierra 2500 | 2020 - Present | Long Bed | Puck System | All options → |
| Sierra 2500 | 2020 - Present | Short Bed | Puck System | All options → |
| Sierra 3500 | 2020 - Present | Long Bed | Puck System | All options → |
| Sierra 3500 | 2020 - Present | Short Bed | Puck System | All options → |
Compare Options
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Got Questions?
Frequently Asked Questions
The 25K ISR Adapter is compatible with Chevrolet, Ford, GMC trucks from 2011 to 2026. Use the fitment table above for the complete list of compatible year, model, and bed configurations.
This hitch is considered DIY-friendly — most owners can install it with basic tools.
The 25K ISR Adapter is available from Curt directly. Use the "Where to Buy" buttons above for current pricing and availability.