SKU: WEHWM625T18
MPN: WM625T18
The Suspension Tube 18in x 5/8-18 THD is a precision-engineered steel component designed for suspension assembly and adjustable linkage applications. Measuring 0.875 inches in outer diameter with an 18-inch length, this threaded tube features a 5/8-18 female thread specification and a durable black oxide finish that resists corrosion and wear. Built for vehicles requiring custom or replacement suspension geometry, this component delivers the accuracy needed for critical suspension modifications.
The black oxide coating provides reliable surface protection against oxidation without adding bulk or weight, making it suitable for both street and off-road applications. At 1.8 pounds, the tube maintains structural rigidity while keeping suspension assembly weight minimal—a consideration that affects overall vehicle dynamics and handling response. The 5/8-18 threaded end accepts standard suspension rod ends, clevises, and adjustment hardware, allowing builders to dial in precise ride height, geometry correction, or control arm length adjustments. The 18-inch dimension accommodates both short-travel and extended-travel suspension designs, common in lifted trucks, trail rigs, and performance-oriented builds.
This suspension tube is essential for fabricators, suspension shops, and serious enthusiasts building custom control arms, drag links, tie rods, or adjustable suspension components. Off-road builders value the precision bore and thread quality for ensuring correct geometry angles and eliminating play. Street car builders use suspension tubes when correcting chassis geometry after lowering, raising, or modifying factory suspension mounts. The black oxide finish proves especially valuable in salt-air and high-moisture environments where bare steel would corrode quickly, making this tube a practical choice for coastal and winter-use vehicles.
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