Frequently Asked Questions About International WorkStar Mud Flaps
What material are these mud flaps made from, and how long will they last?
Our International WorkStar mud flaps are constructed from heavy-duty rubber compounds or anti-spray materials designed to withstand extreme temperatures from -40?F to 110?F. The rubber options typically feature 3/8" to 1/2" thickness with reinforced edges to prevent tearing. Based on customer feedback, these mud flaps generally last 3-5 years under normal commercial use conditions, though factors like road salt exposure, gravel roads, and mileage will affect longevity. Many drivers report the anti-spray style flaps show less wear around the mounting holes compared to standard rubber versions.
Will these mud flaps fit my specific WorkStar model year?
These mud flaps are designed to fit International WorkStar models from 2008-2017. The mounting brackets are compatible with both single and tandem axle configurations. However, WorkStar models with aftermarket lift kits or custom fender modifications may require additional bracket adjustments. For 2018 and newer WorkStar models (now part of the HV series), you'll need to verify your specific fender style as International made slight changes to the wheel well dimensions. We recommend measuring your current mud flap mounting area before ordering if you have a 2017 or newer model.
How difficult is the installation, and what tools do I need?
Installation typically takes 30-45 minutes per mud flap for someone with basic mechanical skills. You'll need a drill with 3/8" and 1/2" bits, a socket wrench set (typically 9/16" and 5/8" sockets), and a measuring tape. The most common challenge customers face is aligning the brackets properly to avoid tire rub. We recommend having a helper hold the mud flap in position while you mark the drill holes. Some WorkStar models have pre-existing holes that may not align perfectly with universal brackets, requiring you to drill new mounting points. Anti-drill stainless steel brackets are available for no-drill installation on select models.
What styles and sizes are available for the WorkStar?
We offer three main styles for the WorkStar: standard black rubber (24" x 24" or 24" x 30"), anti-spray with horizontal ribs (24" x 24"), and heavy-duty weighted flaps (24" x 30" with 3-5 lb weights). The anti-spray designs are popular for dump truck applications as they reduce rock spray by up to 70%. Standard rubber flaps come in smooth or diamond-tread patterns. Custom logo options are available with minimum orders of 10 pairs. For WorkStar models with oversized tires or lift kits, we recommend the 24" x 30" size to ensure adequate coverage.
Do these mud flaps meet DOT requirements, and will they work with my existing brackets?
Yes, all our International WorkStar mud flaps meet or exceed FMCSA regulations requiring the flap to be within 8 inches of the ground when the vehicle is loaded. Most WorkStar trucks come with factory mud flap brackets that our universal flaps will fit, using the standard 2.5" bolt spacing. However, if your brackets are damaged or missing, we offer complete bracket kits specifically designed for WorkStar frame rails. Customers transitioning from OEM plastic flaps to our heavier rubber versions occasionally need to upgrade to reinforced brackets to handle the additional weight, especially with weighted anti-sail flaps.
