Shop Peterbilt 387 Fuel Tank Acc.

Can't find that random aftermarket fuel tank part? 4 State Trucks has you covered with Peterbilt 387 miscellaneous fuel tank accessories and parts. Find custom, chrome, and aftermarket safety vents, pick up tubes, flanges, and more at 4 State Trucks.

Peterbilt 387 Fuel Tank Acc.

Get the most out of your Peterbilt 387 with our wide selection of fuel tank accessories. From safe fuel vents with pressure and thermal relief features to aluminum fuel tanks in a variety of sizes, we have the parts you need to keep your rig running smoothly. Upgrade your fuel system with high-flow return flow splitters, fuel level sending units, and I-panels for a seamless look. Protect your investment with sturdy aluminum tool boxes, rubber fuel tank bibs, and mounting brackets. Whether you're hauling heavy loads or hitting the road, our top-quality Peterbilt 387 fuel tank accessories will provide the durability and performance you demand. Shop now and keep your Peterbilt running at its best.

Frequently Asked Questions About Peterbilt 387 Fuel Tank Accessories

What size fuel tanks fit the Peterbilt 387, and are aftermarket tanks compatible?

The Peterbilt 387 typically accommodates 100-gallon to 150-gallon fuel tanks, with dual tank configurations being common. Most aftermarket aluminum and steel tanks with standard 25-inch or 26-inch diameters will fit, but you'll need to verify your specific frame rail spacing. Models from 1999-2010 have consistent mounting patterns, making tank swaps straightforward. Always check your VIN-specific configuration as some 387s came with custom tank setups from the factory.

How difficult is it to install fuel tank straps and brackets on a 387?

Installing fuel tank straps and brackets is a moderate DIY job that takes 2-3 hours per tank. You'll need basic hand tools, a floor jack to support the tank, and ideally a helper. The main challenges are aligning the tank properly while tightening the straps and ensuring the anti-chafe strips are positioned correctly. Most drivers report the hardest part is removing old, corroded hardware. New stainless steel strap kits come with detailed instructions and typically use the existing mounting holes.

Will chrome or polished aluminum fuel tank accessories rust or corrode?

Quality chrome-plated steel accessories will last 5-7 years with proper care, while polished aluminum options can last indefinitely with regular maintenance. Chrome requires monthly cleaning with chrome polish to prevent pitting, especially in winter salt regions. Aluminum won't rust but can oxidize and develop a cloudy appearance without regular polishing. Most customers prefer aluminum for longevity, though chrome provides a brighter initial shine. Stainless steel straps offer the best corrosion resistance without maintenance.

Do I need special fuel tank steps for my 387, or will universal ones work?

While some universal fuel tank steps claim to fit all trucks, the Peterbilt 387's tank positioning often requires model-specific steps for proper reach and safety. The 387's tanks sit slightly forward compared to other models, meaning generic steps may leave a dangerous gap. Look for steps specifically marked for 1999-2010 Peterbilt 387s, which account for the 52-inch to 56-inch tank spacing. Anti-slip tread patterns and a minimum 12-inch depth are essential for safe fuel tank access.

What's the difference between OEM and aftermarket fuel caps, and which should I choose?

OEM Peterbilt fuel caps cost $80-120 but guarantee perfect fit and proper venting for your 387's emission system. Aftermarket caps range from $25-60 and work well for pre-2007 models. However, 2007-2010 387s with DEF systems require caps with specific venting pressures to prevent check engine lights. Locking caps add security but check that they're compatible with your fuel neck diameter (typically 2.25 inches for 387s). Many drivers keep an OEM cap for emissions testing and use decorative aftermarket caps for shows.