Peterbilt 330/335/337 Frame Nut Covers

Frequently Asked Questions About Peterbilt 330/335/337 Frame Nut Covers

Will these frame nut covers fit my specific Peterbilt 330, 335, or 337 model year?

These frame nut covers are designed to fit Peterbilt 330, 335, and 337 models from 2005 to current production years. They work with standard frame rail configurations and accommodate both 33mm and 1-5/16" lug nuts. However, if your truck has aftermarket wheels or non-standard lug nuts, we recommend measuring your current lug nut size before ordering to ensure proper fitment.

What materials are these nut covers made from, and how long will they last?

Our frame nut covers are manufactured from either chrome-plated ABS plastic or 304 stainless steel, depending on the style you choose. The chrome ABS options offer excellent corrosion resistance and typically last 3-5 years with proper care. Stainless steel versions provide superior durability and can last 10+ years. Both materials are designed to withstand road salt, weather extremes, and regular washing without fading or pitting.

How difficult is the installation process, and what tools do I need?

Installation is straightforward and typically takes 30-45 minutes for a complete set. No special tools are required - you'll just need to remove your existing lug nuts, place the covers over the studs, and reinstall the lug nuts through the covers. The covers are designed with precision-cut openings that align perfectly with factory stud spacing. Some customers find it helpful to use a torque wrench to ensure proper lug nut tightness after installation.

Do these nut covers affect wheel removal or tire service?

No, these nut covers do not interfere with routine maintenance. They feature a push-through design that allows standard lug wrenches and impact sockets to fit normally. The covers stay in place during wheel removal, so you won't need to remove and reinstall them during tire rotations or brake service. This design saves time and prevents loss of individual covers during service work.

What styles and finishes are available for my Peterbilt 330/335/337?

We offer several popular styles including standard dome covers, pointed spike designs, and flat-top options. Finish choices include mirror-polished chrome, brushed stainless steel, and powder-coated black. Most styles are available in both 33mm and 1-5/16" sizes. The dome style remains our most popular choice for professional fleet applications, while the spike design is favored by owner-operators looking for a more customized appearance.