Curt Rota-Flex SHD Pin Box - 21,000 lbs - 328329

The Curt L05 Rota-Flex SHD Pin Box is a heavy-duty 5th-wheel pin box designed for trailers with a 21,000 lbs towing capacity. It features a long-jaw design with a durable black powder-coated finish for enhanced strength and corrosion resistance.

Features:

• Incorporates a pivoting head with a rubber torsion compound to effectively absorb road shock and reduce trailer chucking during travel
• Long-jaw construction provides extended reach and improved stability for secure towing connections
• Bolt-on installation uses the original 2-row, 5-bolt per side pattern, eliminating the need for additional hardware or modifications
• Manufactured from high-strength steel with a black powder-coated lower jaw for enhanced durability and corrosion protection
• Engineered specifically to replace Lippert 1621 pin boxes with exact fit and performance compatibility
• Designed and assembled in the USA to meet rigorous quality standards for heavy towing applications

Specifications:

• Towing Capacity: 21,000 lbs
• Item Dimensions (L x W x H): 32 3/4" x 13 3/8" x 13 1/2"
• Item Weight: 111 lbs
• Pin Box Style: Long Jaw
• Bolt Pattern: 2-Row, 5 Bolts Per Side
• Pin Box Width: 12"
• Finish: Black Powder Coat
• Country of Origin: USA

Compatibility:

• Replaces Lippert 1621 5th-wheel pin boxes with matching bolt pattern and dimensions
• Fits trailers designed for OEM 1621 pin box installations