CURT Replacement Long Trunnion Weight Distribution Spring Bar #17310

UPC: 612314173105

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  • Mounts to a trunnion bar WD hitch head to help level the trailer and tow vehicle
  • Fits certain long trunnion bar weight distribution hitches
  • Pre-assembled with spring bar chain for ready attachment
  • Multiple chain links allow for flexible adjustment of tension
  • Constructed from forged steel for optimum strength
  • Protected by a highly durable carbide powder coat finish


  • Includes a 30 5/8" trunnion spring bar, chain and U-bolt
Shipping Weight 25.000
Superceded by Item 17337
UPC 612314173105
Part Type Replacement Long Trunnion Weight Distribution Spring Bar
Tongue Weight(TW) 1,000 LB - 1,500 LB
Finish Durable Powder Coat
Color Black
Gross Trailer Weight(GTW) 10,000 LB - 15,000 LB
Length 30 5/8 IN

Additional Information

The CURT weight distribution hitch is a specialized towing system that provides improved vehicle and trailer control by leveling the trailer and more evenly distributing its tongue weight across the trailer's and vehicle's axles. Weight distribution hitches are commonly used on travel trailers and campers but can also be applied to other large loads.

This replacement spring bar is designed to fit certain CURT long trunnion bar weight distribution hitches. It features forged steel construction and a durable powder coat finish for long-lasting use. It offers a gross trailer weight capacity of 10,000 - 15,000 lbs., a tongue weight capacity of 1,000 - 1,500 lbs. and comes with a pre-attached spring bar chain for convenient installation and tension adjustment.


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