Peterbilt 359 Hood Replacement Parts

Frequently Asked Questions About Peterbilt 359 Hood Replacement Parts

What years do these hood replacement parts fit, and are they compatible with my specific Peterbilt 359 model?

Our Peterbilt 359 hood replacement parts are designed to fit models from 1967 through 1987, which covers the entire production run of the 359. However, there were minor variations between early models (1967-1985) and late models (1986-1987), particularly in hood hinge mounting points and grille openings. When ordering, check your truck's OEM and model year to ensure proper fitment. Most aftermarket parts are manufactured to fit the more common 1967-1985 specifications, but we carry options for all years. If you're unsure, our team can help verify compatibility with your specific truck.

Are aftermarket hoods made from the same material as OEM, and how does the quality compare?

Most replacement hoods are manufactured from either fiberglass or steel. OEM Peterbilt 359 hoods were originally made from aluminum, but quality aftermarket options in fiberglass have become the standard due to their resistance to corrosion and ease of repair. Fiberglass hoods typically weigh 40-60% less than steel alternatives and won't rust, though they may require additional reinforcement at mounting points. Steel hoods offer superior durability for heavy-duty applications but require proper rust prevention. Both materials can achieve an OEM-quality finish when properly prepped and painted.

What tools and expertise do I need to install a replacement hood, and how long does it typically take?

Installing a Peterbilt 359 hood requires basic hand tools including socket sets, wrenches, and potentially a drill for minor adjustments. You'll need at least one helper, as hoods are bulky and require careful alignment. Professional installation typically takes 3-4 hours, while first-time DIY installations may take 6-8 hours. Key challenges include aligning hood hinges, adjusting the latch mechanism, and ensuring proper gaps around the grille and fenders. Many customers find that pre-fitting all components before final installation saves significant time. Hood hinges, latches, and rubber bumpers often need replacement during hood installation and should be ordered together.

What's the difference between peaked, flat top, and curved hood styles for the 359?

The Peterbilt 359 came with three main hood styles. The flat top hood sits level with the cab roof and was the standard configuration. The peaked hood features a raised center section that improves engine cooling and provides a more aggressive appearance. The curved or "humpback" hood has a gentle arc from front to back and was less common but popular with owner-operators. All three styles use the same mounting points and hinges, making them interchangeable. Your choice primarily affects appearance and slightly impacts airflow - peaked hoods generally provide the best engine cooling for high-horsepower applications.

Do replacement hoods come painted, and what prep work is required if they're unpainted?

Most replacement hoods arrive in primer or gel coat finish and require painting to match your truck. Proper preparation is crucial for a lasting finish. Fiberglass hoods need light sanding, filling of any imperfections, and application of appropriate primer before painting. Steel hoods should be thoroughly cleaned, treated with rust inhibitor, and primed with epoxy primer. Budget 8-12 hours of prep work for a professional-quality paint job. Some suppliers offer pre-painted hoods in common colors, but color matching to weathered paint can be challenging. Most customers choose to have hoods professionally painted to ensure proper color match and durability.