Volvo WIA Shock Absorbers
Volvo WIA Shock Absorbers are a reliable and durable choice for semi-truck suspension systems. This product line includes a wide range of top-quality shock absorbers from trusted brands like Gabriel, Bulldog, and BESTfit. These shocks are designed to provide a smooth, comfortable ride while ensuring superior handling and control, even on the toughest terrain. Key features include heavy-duty double lip seals, adjustable compression, and high-performance gas-charged technology. Trucks equipped with Volvo WIA Shock Absorbers benefit from improved stability, reduced wear and tear, and enhanced safety. Whether you're looking to upgrade your existing suspension or need a reliable replacement, the Volvo WIA Shock Absorber product line has the perfect solution to meet your semi-truck's needs.
Frequently Asked Questions About Volvo WIA Shock Absorbers
What are the correct shock absorber part numbers for my specific Volvo WIA model year?
The most common OEM shock absorber part numbers for Volvo WIA trucks are 20374545 (front) and 20374546 (rear) for models from 1988-2003. However, specifications can vary based on your suspension configuration. We recommend checking your existing shock's part number or calling our tech support at 1-888-875-7787 with your VIN number to ensure exact fitment. Many aftermarket options like Gabriel 85003 or Monroe 65475 also provide direct replacements.
How difficult is it to replace the shock absorbers myself, and what tools will I need?
Replacing Volvo WIA shock absorbers is a moderate DIY job that typically takes 2-3 hours per axle. You'll need basic hand tools including 3/4" and 7/8" wrenches, a socket set, jack stands, and a floor jack. The top mount usually requires a 21mm wrench while the bottom bolt is typically 24mm. The biggest challenge is often breaking loose rusted bolts - penetrating oil applied 24 hours before helps significantly. Always replace shocks in pairs and support the axle weight before removal.
What's the difference between gas-charged and hydraulic shocks for my WIA, and which is better?
Gas-charged shocks contain nitrogen gas that prevents fluid aeration and fade during heavy use, making them ideal for loaded trucks or frequent highway driving. They typically last 20-30% longer than standard hydraulic shocks. Hydraulic shocks work well for lighter loads and local driving but may experience fade on long descents. For most WIA applications, we recommend gas-charged shocks like the Bilstein 24-184991 series for superior heat dissipation and consistent damping.
How can I tell if my Volvo WIA shock absorbers need replacement?
Key signs include excessive bouncing after hitting bumps (more than 2-3 oscillations), visible oil leaks on the shock body, uneven tire wear, nose-diving during braking, or a rough ride quality. Push down hard on each corner of your truck - if it bounces more than once, the shocks are worn. Most WIA shocks last 50,000-75,000 miles under normal conditions, but severe service applications may need replacement every 30,000-40,000 miles.
Will aftermarket shock absorbers void my warranty or affect my truck's ride height?
Quality aftermarket shocks from reputable manufacturers like KYB, Monroe, or Gabriel will not void your warranty when properly installed and are designed to maintain factory ride height. These direct-fit replacements match OEM specifications for compressed and extended lengths. However, avoid "heavy duty" shocks not specifically designed for your WIA model as they may alter ride height by 1-2 inches and create alignment issues. Always verify the shock's application guide shows compatibility with your specific year and suspension type.
