Peterbilt 359 Sleeper Rear Acc.

Frequently Asked Questions About Peterbilt 359 Sleeper Rear Accessories

What years and models are these rear bumpers compatible with?

Our Peterbilt 359 sleeper rear accessories are designed to fit 1967-1987 Peterbilt 359 models with sleeper cabs. These bumpers are specifically engineered for the extended frame rails found on sleeper models. If you have a day cab 359, you'll need to check our standard 359 rear bumper section instead. For 1986-1987 models, please verify your frame width as some late production units had variations.

Are these bumpers made from stainless steel or chrome-plated steel?

We offer both options depending on your preference and budget. Our stainless steel bumpers are made from 304-grade stainless with a mirror polish finish that won't rust or peel. The chrome-plated versions feature heavy-duty steel construction with triple-chrome plating. Stainless typically costs 30-40% more but requires less maintenance and lasts longer in harsh weather conditions.

Do I need to drill new holes or modify my frame for installation?

Most of our Peterbilt 359 sleeper rear bumpers are designed as direct bolt-on replacements using existing frame mounting points. However, some custom or heavy-duty models may require drilling 2-4 additional holes. Each product page specifies if modifications are needed. We recommend having 3-4 hours available for installation, and while one person can manage it, having a helper makes alignment much easier.

What's the difference between the 16-inch, 18-inch, and 20-inch bumper options?

The measurement refers to the bumper's depth from the back of the truck. The 16-inch is the standard OEM replacement size. The 18-inch provides extra protection and a more substantial appearance without being overly large. The 20-inch Texas-style bumper offers maximum protection and presence but may affect departure angles on some applications. Consider your typical loading dock clearances when choosing.

Can I mount light boxes and mud flap hangers on these bumpers?

Yes, most of our Peterbilt 359 sleeper rear bumpers come pre-drilled for standard light box mounting and include reinforced areas for mud flap hangers. The bumpers accommodate both 4-inch and 6-inch round light configurations. Mounting hardware is typically not included but can be purchased separately. Some bumpers also feature optional airline and electrical cord keeper brackets.