HomeSuspension > Suspension, Springs and Related ComponentsMoog T40043 Adjustable Torsion Bar Key - Front
Part #: T40043

Moog T40043 Adjustable Torsion Bar Key - Front

Front
46 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet and GMC, Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, Sierra 3500 HD, Suburban 2500, and Yukon XL 2500
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Overview of Moog Adjustable Torsion Bar Key T40043

The Moog Adjustable Torsion Bar Key T40043 is designed to provide precise suspension adjustments for heavy-duty Chevrolet and GMC trucks. Engineered with premium-grade materials, this torsion bar key ensures reliable performance and durability for models like the Silverado 2500 HD and Sierra 3500 HD.

  • Premium grade construction for enhanced strength and longevity
  • Adjustable design allows for fine-tuning suspension height and ride quality
  • Compatible with Chevrolet and GMC heavy-duty trucks including Silverado, Sierra, Suburban, and Yukon XL 2500 series
  • Part number T40043 ensures exact fitment and replacement
  • Corrosion-resistant finish for extended service life

Detailed Product Description

The Moog T40043 adjustable torsion bar key is a critical component in the suspension system of select Chevrolet and GMC heavy-duty trucks. Crafted from premium-grade materials, this torsion bar key is built to withstand the demanding conditions faced by vehicles such as the Sierra 2500 HD, Silverado 3500 HD, and Suburban 3500 HD. Its adjustable feature allows technicians and vehicle owners to modify the torsion bar preload, enabling precise control over ride height and suspension stiffness. This adjustability is particularly useful for trucks that carry varying loads or require specific suspension tuning for towing or off-road use. The part number T40043 corresponds directly to the OEM specifications, ensuring a seamless replacement process without compromising vehicle safety or performance.

Common Applications and Problem Solving

  • Corrects sagging or uneven suspension height in Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD
  • Improves load handling and stability for Suburban 2500 and Yukon XL 2500 models
  • Addresses suspension stiffness issues caused by worn or damaged torsion bar keys
  • Facilitates suspension lift adjustments for aftermarket modifications
  • Helps restore proper alignment and ride quality after suspension repairs

Installation Notes and Tips

  • Ensure vehicle is securely lifted and supported before beginning installation
  • Use proper torsion bar unloading tools to safely remove and install the torsion bar key
  • Adjust the torsion bar key incrementally to achieve desired ride height and suspension feel
  • Verify alignment and suspension geometry after installation
  • Consult vehicle service manual for torque specifications and safety precautions

Quality Assurance and Warranty

Moog manufactures the T40043 adjustable torsion bar key to meet or exceed OEM standards, using premium-grade materials for durability and performance. This part undergoes rigorous quality control to ensure consistent fit and function. While specific warranty details may vary, Moog typically offers a limited warranty against defects in materials and workmanship, providing confidence in the product’s reliability for Chevrolet and GMC heavy-duty truck owners.

This part fits 46 vehicles. Search below:

YearMakeModelPositionNotes
2019ChevroletSilverado 2500 HDFront
2019ChevroletSilverado 3500 HDFront
2019ChevroletSuburban 3500 HDFront
2019GMCSierra 2500 HDFront
2019GMCSierra 3500 HDFront
2018ChevroletSilverado 2500 HDFront
2018ChevroletSilverado 3500 HDFront
2018ChevroletSuburban 3500 HDFront
2018GMCSierra 2500 HDFront
2018GMCSierra 3500 HDFront
2017ChevroletSilverado 2500 HDFront
2017ChevroletSilverado 3500 HDFront
2017ChevroletSuburban 3500 HDFront
2017GMCSierra 2500 HDFront
2017GMCSierra 3500 HDFront
2016ChevroletSilverado 2500 HDFront
2016ChevroletSilverado 3500 HDFront
2016ChevroletSuburban 3500 HDFront
2016GMCSierra 2500 HDFront
2016GMCSierra 3500 HDFront
2015ChevroletSilverado 2500 HDFront
2015ChevroletSilverado 3500 HDFront
2015GMCSierra 2500 HDFront
2015GMCSierra 3500 HDFront
2014ChevroletSilverado 2500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2014ChevroletSilverado 3500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2014GMCSierra 2500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2014GMCSierra 3500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2013ChevroletSilverado 2500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2013ChevroletSilverado 3500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2013ChevroletSuburban 2500FrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2013GMCSierra 2500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2013GMCSierra 3500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2013GMCYukon XL 2500FrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2012ChevroletSilverado 2500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2012ChevroletSilverado 3500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2012ChevroletSuburban 2500FrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2012GMCSierra 2500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2012GMCSierra 3500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2012GMCYukon XL 2500FrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2011ChevroletSilverado 2500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2011ChevroletSilverado 3500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2011ChevroletSuburban 2500FrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2011GMCSierra 2500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2011GMCSierra 3500 HDFrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM
2011GMCYukon XL 2500FrontAllows Front Ride Height Changes Up To 2.25 (in) Above OEM

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

264700545K310196251005641400G

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.