Specifications

The Torque Parts USA TR9978 Trailer Air Spring is designed to replace part numbers 1R12-668, W01-358-9978, and 67588. This air spring is built to offer superior suspension performance, improving ride quality and stability under heavy-duty conditions. With durable construction, the TR9978 ensures long-lasting reliability, supporting optimal suspension height and better load-bearing capabilities. Perfect for trailers in need of a suspension upgrade, this air spring provides a smooth and stable ride. Order the TR9978 air spring today from Wofford Truck Parts for a reliable and high-performance replacement.

Compatibility

Freightliner Cascadia (Year: 2007-2020)

Kenworth T680 (Year: 2012-2020)

Peterbilt 579 (Year: 2012-2020)

Volvo VNL (Year: 2010-2020)

Alternative Part Numbers

  • OEM:
  • 1R12-668
  • 67588
  • 9978
  • W01-358-9978

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