Shop Peterbilt 375 & 377 Frame Steps & Acc.

Peterbilt 375/377 Frame Steps & Acc.

The Peterbilt 375/377 Frame Steps & Accessories product lineup offers a wide range of premium-quality products to enhance the appearance and functionality of your Peterbilt semi-truck. From stylish and durable step plates and boxes to versatile grab steps and retractable truck steps, this product lineup has everything you need to accessorize your rig. Key features and benefits of products in this product lineup include: - Variety of materials and finishes, including aluminum, steel, and stainless steel, to suit any aesthetic - Non-slip tread and diamond plate designs for maximum safety and traction - Convenient retractable and folding options for easy access and storage - Customizable options with logos, graphics, and patriotic accents - Sturdy construction and heavy-duty weight capacities up to 400 lbs Whether you're looking to upgrade the functionality, style, or safety of your Peterbilt 375 or 377, this extensive selection of steps and accessories has what you need. Elevate the overall look and utility of your semi with these premium products designed specifically for Peterbilt trucks.

Frequently Asked Questions About Peterbilt 375/377 Frame Steps & Acc.

What years and models are these frame steps compatible with?

Our frame steps are designed specifically for Peterbilt 375 and 377 models manufactured between 1987 and 2007. While many accessories fit across this entire range, some items are year-specific due to frame rail changes in 1999. Always check the product description for exact fitment details, or contact our team with your VIN number for verification before ordering.

Are these steps made from aluminum or steel, and which is better for my truck?

We carry both aluminum and steel frame steps. Aluminum steps (typically 3/8" diamond plate) weigh 40-60% less than steel, resist corrosion better, and are ideal for weight-conscious operations. Steel steps offer superior strength for heavy-duty applications and cost less upfront, but require regular maintenance to prevent rust. Most owner-operators prefer aluminum for longevity, while fleet operators often choose steel for durability and lower initial cost.

Can I install these frame steps myself, and what tools do I need?

Yes, most frame steps can be installed in 2-3 hours with basic tools. You'll need a drill with metal bits, wrenches (typically 9/16" and 3/4"), and possibly a jack to support the step during mounting. Most steps use existing frame holes, but some require drilling 2-4 new holes. We recommend having a helper for alignment. Professional installation typically runs $150-300 if you prefer to have a shop handle it.

What's the difference between single, double, and full-length frame steps?

Single steps mount behind the cab for basic cab access. Double steps add a second step near the battery box or toolbox area. Full-length steps run from behind the cab to the rear fenders, providing continuous access along the frame. Single steps start around $200-400, doubles run $400-700, and full-length sets typically cost $800-1500 depending on material and finish. Choose based on how often you need frame access and your budget.

Do these steps come with mounting hardware, and will they work with my existing fuel tanks?

Most frame steps include grade 8 mounting bolts, brackets, and installation instructions. However, aftermarket fuel tanks or custom frame modifications may require additional brackets (usually $30-75 per set). Steps are designed to clear factory 50-150 gallon fuel tank configurations. If you have aftermarket tanks or air cleaners, measure your clearance - you need at least 2 inches between the tank and frame rail for proper step fitment.