Restore Your Liftgate’s Structural Integrity and Reach
Ensure the structural integrity and operational excellence of your liftgate with the genuine Thieman Tailgates 31155-001 Extension Weldment. As a critical structural component, this weldment is not just a replacement part; it’s an investment in the safety, reliability, and longevity of your equipment. When a key piece of your liftgate’s framework is damaged or worn, choosing a factory-original part is essential to restore its performance to manufacturer standards and maintain a safe working environment for your operators. This precision-engineered weldment is designed to seamlessly integrate with your existing Thieman system, eliminating the guesswork and compatibility issues often associated with aftermarket alternatives.
Unmatched Durability and OEM Quality
The 31155-001 Extension Weldment is a testament to Thieman’s commitment to quality craftsmanship. Fabricated from high-tensile, heavy-gauge steel, it is built to withstand the immense stresses and rigorous daily demands of commercial loading and unloading. Each joint is expertly welded by certified technicians, ensuring maximum strength and fatigue resistance at critical stress points. This superior construction guarantees that the part can handle its rated load capacity without compromise, providing peace of mind during every lift cycle. Furthermore, the weldment is finished with a durable, corrosion-resistant coating to protect it from harsh weather, road salt, and chemical exposure, significantly extending its service life and preventing premature failure due to rust or environmental degradation.
Precise Fit for Optimal Performance
Specifically designed as an “Extension Weldment,” the 31155-001 plays a crucial role in defining the geometry and reach of your liftgate. It may be used to extend the platform’s depth, allowing for the accommodation of larger, bulkier cargo, or to provide the necessary structure for bridging the gap between your truck bed and a loading dock. Its precise dimensions ensure that all moving parts of the liftgate operate smoothly and without binding, preserving the integrity of the entire hydraulic and mechanical system. By restoring your equipment with this OEM component, you ensure it continues to meet the high standards set by Thieman Tailgates. For a complete selection of genuine replacement components, browse our extensive inventory of Thieman Tailgates Parts to find everything you need for your repair or maintenance project.
- Official OEM Part: A genuine Thieman Tailgates factory component for guaranteed compatibility and performance.
- Part Number: 31155-001
- Part Name: Extension Weldment 7242
- Superior Construction: Fabricated from high-strength, heavy-duty structural steel for maximum durability.
- Precision Welding: Features factory-certified welds that provide exceptional strength and resistance to stress and fatigue.
- Corrosion Resistant: Treated with a protective finish to guard against rust and environmental damage, ensuring a long service life.
- Engineered for Fit: Manufactured to the exact specifications of the original part for a perfect, hassle-free installation.
- Critical Structural Component: Essential for restoring the liftgate’s frame, extending its platform, and ensuring safe operation.
- Restores Performance: Eliminates issues caused by bent, cracked, or worn weldments, returning the liftgate to its original functionality.
- Direct Replacement: Designed to directly replace the original 31155-001 weldment without the need for modifications.
- Safety Certified: Using an OEM part helps maintain the liftgate’s original safety ratings and operational integrity.


