Frequently Asked Questions About Freightliner M2 Business Class Frame Nut Covers

What are the exact model years these frame nut covers fit?

These frame nut covers are designed specifically for Freightliner M2 Business Class trucks from model years 2003 to present. They fit the standard 33mm lug nuts used on most M2 106 and M2 112 models. However, we recommend double-checking your lug nut size before ordering, as some specialty configurations may have different sizing. You can measure your existing lug nuts or check your truck's specifications to ensure compatibility.

Are these covers made of chrome-plated plastic or stainless steel?

Most frame nut covers for the M2 Business Class are available in both ABS chrome-plated plastic and 304 stainless steel options. The plastic versions offer an economical solution with good appearance and typically last 2-3 years with proper care. The stainless steel covers provide superior durability and corrosion resistance, making them ideal for trucks operating in harsh weather conditions or those requiring frequent washing. Both materials are designed to withstand road vibration and temperature extremes.

How do these covers stay on, and will they fall off during driving?

Quality frame nut covers use either a push-on friction fit design or a threaded installation system. Push-on covers feature internal retention tabs that grip the lug nut securely when properly installed. Threaded covers screw directly onto the lug nut threads for maximum security. When correctly installed, neither type should come loose during normal driving conditions. For added security, some drivers apply a small amount of silicone adhesive during installation, though this is typically not necessary with properly sized covers.

Can I install these myself, or do I need special tools?

Installation is straightforward and can be completed in about 30 minutes for a full set. For push-on style covers, no special tools are required - simply clean the lug nuts thoroughly and push the covers on firmly until they click into place. For threaded covers, you may need a socket or wrench that fits the cover's hex design. We recommend removing any rust or debris from the lug nuts before installation and checking that each cover is fully seated. Most customers successfully install these themselves without professional help.

Do these covers affect wheel removal or tire service?

Frame nut covers are designed for easy removal when wheel service is needed. Push-on covers can be removed by hand or with gentle prying using a plastic trim tool. Threaded covers unscrew just like a regular nut. The covers do not interfere with torque specifications or wheel installation when removed for service. Many fleet operators appreciate that these covers actually protect the lug nut threads from corrosion, making future wheel removal easier. Just remember to reinstall the covers after any tire service to maintain the finished appearance.