Peterbilt 330/335/337 Exterior Parts

Frequently Asked Questions About Peterbilt 330/335/337 Exterior Parts

Will these bumpers fit my specific Peterbilt 330, 335, or 337 model year?

Most aftermarket bumpers for Peterbilt 330/335/337 models fit trucks manufactured from 2005 to present. However, there are slight mounting variations between pre-2008 and post-2008 models. Always verify the exact year range listed in the product description, and note that some bumpers may require different mounting brackets for 2005-2007 models. When in doubt, contact us with your OEM number for exact fitment confirmation.

What's the difference between chrome steel and stainless steel bumpers, and which holds up better?

Chrome-plated steel bumpers offer a mirror-like finish at a lower cost but require regular polishing and can rust if the chrome chips. Stainless steel bumpers (typically 304-grade) resist corrosion naturally and maintain their appearance with minimal maintenance, though they have a slightly different shine than chrome. For trucks operating in salt-heavy regions or harsh weather, stainless steel provides superior long-term durability despite the higher upfront cost.

Can I install these bumpers myself, or do I need professional help?

Basic bumper replacement typically requires 2-3 hours and standard tools including socket wrenches, jack stands, and potentially a helper for heavy bumpers (some weigh 80+ pounds). The main challenges include aligning mounting holes, which may require minor drilling on older models, and disconnecting any integrated fog lights or sensors. Professional installation runs $200-400 but ensures proper alignment and torque specifications.

Do aftermarket grilles affect engine cooling or void warranties?

Quality aftermarket grilles maintain factory airflow specifications and won't impact cooling when properly installed. Look for grilles that preserve the original opening dimensions. Regarding warranties, cosmetic modifications like grilles typically don't affect drivetrain warranties, but always check your specific warranty terms. Some fleet operators prefer OEM-style replacement grilles to maintain consistent appearance and proven airflow patterns.

What's included with hood and fender replacements, and what additional parts might I need?

Hoods and fenders typically come primed but unpainted, without hinges, latches, or mounting hardware. You'll need to transfer existing hardware or purchase new hinge kits ($50-150), hood latches ($30-80), and fender brackets ($40-100 per side). Factor in professional painting costs ($300-600 per panel) unless you're equipped for DIY painting. Some fenders require separate inner splash shields, which aren't always included.