Pop-Up SB2 Gooseneck Coupler – 9″ Offset
$417.00 on Amazon.com (as of October 15, 2026, 3:06 AM EST) View details ↗
Maximize towing clearance with the Pop-Up SB2 Extended Gooseneck Coupler, designed for trucks with limited space behind the cab. This 9″ offset coupler adds critical clearance between your truck tailgate and trailer bulkhead—ideal for short-bed trucks towing full-nose gooseneck trailers. The coupler features a 4.5″ square tube fit and integrates seamlessly with standard OEM trailer king pin boxes, ensuring a secure and reliable connection.
The SB2 includes a self-latching GN8 mechanism rated for up to 28,000 lbs. Gross Trailer Weight (GTW), with remote release functionality for easy hitching and unhitching. Its 4″ height adjustment (in 1″ increments) from 12.5″ to 16.5″ accommodates varying trailer heights, while the 1″ holes on both sides allow for versatile mounting options. Built with durability in mind, the coupler features a strong machined king pin clamp to secure the unit directly to your trailer.
| Max Load Capacity | 28,000 lbs. Gross Trailer Weight |
|---|---|
| Tube Fit | 4.5″ square ID |
| Offset | 9″ |
| Height Adjustment | 4″ (12.5″–16.5″ in 1″ increments) |
| Release Mechanism | Remote-controlled |
| Mounting Holes | 1″ diameter on both sides |






