2-Pack 4" Aluminum Non-Locking Diesel Fuel Caps for Peterbilt Trucks – Replaces 11-04859-100, 11-04859-200, 572.1015, 600212
Upgrade your Peterbilt with the toughest, best-fitting 4-inch diesel fuel caps on the market. Precision die-cast aluminum construction delivers OE-level sealing and 3X the strength of cheap plastic caps — no more leaks, no more fuel smell in the cab, no more lost caps on the side of the highway.
Perfect Direct Fit for Virtually Every Peterbilt Ever Built

330 (1995-2010) 335 (1995-2010) 337 (2011-2016) 340 (2007-2011)
348 (2011-2016) 352 (1975-1980) 357 (1987-2007) 359 (1972-1987)
362 (1981-2000) 365 (2007-2017) 367 (2007-2017) 375 (1989-1995)
377 (1988-2000) 377 SBA (1987-2000) 378 (1987-2007) 379 (all years including 119BBC/127BBC 1987-2007)
384 (2008-2015) 385 (2000-2007) 386 (2006-2016) 387 (1999-2010)
388 (2008-2014) 389 (2008-Current including Glider) 567 SBA/SFA (2014-2016)
579 (2013-2016) 587 (2011-2016) …and dozens more classic & late-model Peterbilt trucks!

Everything You Need in One Box

2 × 4" Non-Locking Aluminum Diesel Fuel Caps
2 × High-Temp Rubber Sealing O-Rings (pre-installed)
2 × 13" Stainless Anti-Loss Safety Chains with quick-connect clips

30-Second Tool-Free Install
Hand-tighten only — built-in grip wings + pre-lubed threads mean you can swap both sides faster than your coffee cools down. No wrenches, no busted knuckles, no dropped tools in the mud.
Built for Real Truckers

Vented pressure relief prevents vacuum lock
Die-cast aluminum shrugs off road salt, fuel, and -40°F winters
500,000+ mile proven durability

Buy with Total Confidence
12-month/Unlimited Mileage Warranty + lifetime fitment support. Message us with your VIN anytime — we'll verify fit and ship replacements before you even send the old ones back.
Stop overpaying at the dealer. Click “Add to Cart” now and get back on the road in minutes!