Can a 2026 GMC Sierra 1500 tow a Sea Hunt BX 25 FS?
Yes
We estimate a loaded Sea Hunt BX 25 FS on its trailer at about 6,800 lb. 8 of 8 Sierra 1500 engine/package options pass with a 20% margin (for example the 2.7L TurboMax). Payload still needs checking against your door-jamb sticker: tongue weight plus two adults is about 980-1,320 lb.
Check your exact setup (add your door-sticker payload and real trailer weight)
Sea Hunt BX 25 FS loaded towing weight
| Dry weight (Sea Hunt) | 3,700 lb |
| Engine: Yamaha 4.3L V6 F350 (heaviest listed variant), the heaviest Yamaha that covers the boat's 350 HP max | 653 lb |
| Fuel: 68 gal x 6.1 lb/gal (full tank) | 415 lb |
| Gear allowance: 10% (batteries, anchor, coolers, safety gear, T-top/options) | 477 lb |
| Trailer: ESTIMATE, 35% of boat + engine (no trailer weight published) | 1,550 lb |
| Estimated loaded trailer weight | 6,800 lb |
2026 GMC Sierra 1500 towing ratings vs this boat
| Engine / package | Published rating (lb) | Tow | Payload | Result |
|---|---|---|---|---|
| 2.7L TurboMax | 8,800–9,400 | PASS | CHECK | PASS |
| 5.3L V8 | 9,100–9,800 | PASS | CHECK | PASS |
| 5.3L V8 + Max Trailering Package | 10,800–11,200 | PASS | CHECK | PASS |
| 6.2L V8 (not AT4X) | 8,900–9,000 | PASS | CHECK | PASS |
| 6.2L V8 + Max Trailering Package | 11,700–13,100 | PASS | CHECK | PASS |
| 3.0L Duramax diesel (not AT4X) | 8,700–9,300 | PASS | CHECK | PASS |
| 3.0L Duramax + Max Trailering Package | 11,600–13,300 | PASS | CHECK | PASS |
| AT4X (6.2L V8 or 3.0L Duramax) | 8,500–8,700 | PASS | CHECK | PASS |
"Published rating" is the lowest–highest conventional (ball-hitch) rating GMC prints for that engine/package across cab, bed, drive and axle choices. PASS means the loaded trailer is at or under 80% of the lowest rating. GMC: ratings require a properly equipped vehicle; passengers, cargo and options reduce what you can tow.
Tongue weight vs payload
Tongue weight should be 10–15% of the loaded trailer: about 680–1,020 lb. That comes out of your truck's payload along with everyone in the cab, so with two adults (300 lb) you need roughly 980–1,320 lb of payload before any cargo in the bed.
2.7L TurboMax PASS
PASS 6,800 lb is 77% of the lowest published rating (8,800 lb), inside a 20% safety margin.
CHECK Payload isn't published in the maker's towing chart for this truck. Use the payload on your door-jamb sticker.
5.3L V8 PASS
PASS 6,800 lb is 75% of the lowest published rating (9,100 lb), inside a 20% safety margin.
CHECK Payload isn't published in the maker's towing chart for this truck. Use the payload on your door-jamb sticker.
Some ratings need the MI2 10-speed or MT tires.
5.3L V8 + Max Trailering Package PASS
PASS 6,800 lb is 63% of the lowest published rating (10,800 lb), inside a 20% safety margin.
CHECK Payload isn't published in the maker's towing chart for this truck. Use the payload on your door-jamb sticker.
6.2L V8 (not AT4X) PASS
PASS 6,800 lb is 76% of the lowest published rating (8,900 lb), inside a 20% safety margin.
CHECK Payload isn't published in the maker's towing chart for this truck. Use the payload on your door-jamb sticker.
6.2L V8 + Max Trailering Package PASS
PASS 6,800 lb is 58% of the lowest published rating (11,700 lb), inside a 20% safety margin.
CHECK Payload isn't published in the maker's towing chart for this truck. Use the payload on your door-jamb sticker.
13,000-13,100 lb needs 20-in wheels.
3.0L Duramax diesel (not AT4X) PASS
PASS 6,800 lb is 78% of the lowest published rating (8,700 lb), inside a 20% safety margin.
CHECK Payload isn't published in the maker's towing chart for this truck. Use the payload on your door-jamb sticker.
3.0L Duramax + Max Trailering Package PASS
PASS 6,800 lb is 59% of the lowest published rating (11,600 lb), inside a 20% safety margin.
CHECK Payload isn't published in the maker's towing chart for this truck. Use the payload on your door-jamb sticker.
12,400-13,300 lb needs 20-in wheels.
AT4X (6.2L V8 or 3.0L Duramax) PASS
PASS 6,800 lb is 80% of the lowest published rating (8,500 lb), inside a 20% safety margin.
CHECK Payload isn't published in the maker's towing chart for this truck. Use the payload on your door-jamb sticker.
Confirm with your door-jamb sticker and owner's manual. Your exact truck's rating depends on cab, bed, drive, axle ratio, options and tires, and your boat's real weight depends on its engine, options, fuel and gear. When in doubt, weigh the rig at a CAT scale.
Gear you may need
Placeholder links (not affiliate links yet). Disclosure.
Trailer brake controller
Boat trailers over about 3,000 lb usually need working trailer brakes (check your state's law); an electric-over-hydraulic or electric setup needs a controller in the truck.
Class IV receiver hitch & ball mount
Match the ball mount drop to your trailer so the boat rides level; the hitch rating must cover the full loaded trailer.
Tongue weight scale
The only way to know your real tongue weight (10-15% of the loaded trailer) before it eats your payload.
Sources
- 2026 GMC Sierra 1500: GMC 2026 Sierra 1500 Max Conventional Trailering chart, checked 2026-10-29
- Sea Hunt BX 25 FS: Sea Hunt model page (Dry weight, fuel capacity, max HP), checked 2026-10-29
- Engine weight: Yamaha Outboards spec page (Yamaha 4.3L V6 F350 (heaviest listed variant), 653 lb)
- Method and assumptions: How we calculate
Related checks
Other boats with a 2026 GMC Sierra 1500
- Grady-White Adventure 218 (~6,840 lb)
- Grady-White 231 CE (~6,760 lb)
- Yamaha 255XD (~6,910 lb)
- Tidewater 226 CC (~6,920 lb)
- Sportsman Masters 227 (~6,650 lb)
- Sportsman Open 212 (~6,600 lb)