Peterbilt 357/378 Exterior Parts

Frequently Asked Questions About Peterbilt 357/378 Exterior Parts

What years and models are compatible with these Peterbilt 357/378 exterior parts?

Most of our exterior parts fit Peterbilt 357 models from 1987-2007 and Peterbilt 378 models from 1986-2007. However, compatibility can vary based on specific configurations like hood style (standard vs. extended), sleeper vs. day cab, and factory options. We recommend checking the product description for exact fitment details or contacting our support team with your OEM number for verification. Some parts are universal across both models, while others are model-specific due to slight frame and mounting differences.

What material options are available for bumpers and how do they compare in durability?

We offer bumpers in three primary materials: chrome-plated steel, stainless steel, and aluminum. Chrome-plated steel bumpers provide excellent impact resistance and a classic look but require regular maintenance to prevent rust. Stainless steel bumpers offer superior corrosion resistance and maintain their appearance with minimal upkeep, making them ideal for harsh weather conditions. Aluminum bumpers are the lightest option, reducing front-end weight by 40-60 pounds compared to steel, and resist corrosion well but may dent more easily from impacts. Consider your operating environment and maintenance preferences when choosing.

What tools and expertise are needed to install these exterior parts?

Basic installations like grille inserts or mirror covers typically require standard hand tools (wrenches, sockets, screwdrivers) and take 1-2 hours. Bumper installations are more involved, requiring a floor jack or hoist, impact wrench, and often a helper due to weight (steel bumpers can weigh 80-120 pounds). Most parts come with mounting hardware, but you may need to reuse some factory bolts. Professional installation is recommended for complex items like full hood replacements or custom light bars. Many customers successfully complete installations in their own shops, but allow extra time if you're doing it for the first time.

How do I match the finish of new parts to my existing truck?

We offer parts in several finishes to match your truck's appearance. Chrome parts come in show-quality or OEM-grade finishes - show chrome has a mirror-like finish while OEM matches factory specifications. Stainless steel is available in polished (bright finish) or brushed (satin finish) options. For painted parts, we recommend having them professionally color-matched to your truck's paint code, as slight variations can occur over time due to sun exposure and wear. When ordering multiple exterior parts, try to purchase them together to ensure finish consistency from the same production batch.

What are the most common fitment issues and how can I avoid them?

The most frequent fitment challenges involve bumpers on trucks with aftermarket modifications like custom brackets, air ride suspensions, or non-standard front ends. Extended hood models may require different mounting brackets than standard hoods. Verify your truck's configuration before ordering - measure mounting hole spacing and check for any frame modifications. Light bars and visors can interfere with existing antenna or beacon light placements. Pre-1990 models sometimes have different mounting points that require minor drilling or adapter brackets. Taking photos of your current setup and providing them when ordering helps ensure proper fitment.