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1104859200 4 Inch Locking Diesel Fuel Cap for Peterbilt 330 587 Trucks 1972 2017
$63.39
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$63.39
Regular price
Available to Order
This Locking Diesel Fuel Cap is a 4-inch locking fuel tank cap compatible with 1972-2017 Peterbilt trucks, including models 330 through 587, and matches OEM part number 11-04859-200.
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
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Product Overview
This 4" Locking Diesel Fuel Cap provides secure closure for saddle tanks on Peterbilt heavy-duty trucks, preventing fuel theft and contamination. The locking cap replaces lost or damaged caps and maintains tank pressurization to support proper fuel delivery. Built for owner-operators and fleet managers, this 4" Locking Diesel Fuel Cap stops unauthorized access and moisture ingress.
Key Features & Performance
- 4-inch threaded diameter fits standard Peterbilt filler necks
- Tumbler-style lock with two keys included for controlled access
- Heavy-duty die-cast metal body with corrosion-resistant black powder-coat finish
- Built-in vent prevents vacuum lock during fuel draw
- Thick O-ring seal blocks water, dirt, and road debris
- Direct replacement for OEM part 11-04859-200
Fitment & Compatibility
- 1972-2017 Peterbilt trucks with 4-inch fuel tank opening
- Peterbilt 330, 335, 337, 340, 345, 348
- Peterbilt 357, 359, 362, 367, 372, 375, 377, 378, 379
- Peterbilt 384, 385, 386, 387, 388, 389, 548, 587
Common Uses
- Replacing broken or missing fuel caps on diesel saddle tanks
- Preventing fuel siphoning and theft at truck stops and overnight yards
- Maintaining tank pressurization to aid fuel pump delivery
- Protecting fuel from water contamination during wet weather
- Restoring proper fuel system operation after a cap is lost
Technical Specifications
- Part Number(s): 11-04859-200
- Cap Diameter: 4 inches (threaded)
Frequently Asked Questions
Q: Will this cap fit my Peterbilt 379 with a 4-inch filler neck? A: Yes, it is designed for all 1972-2017 Peterbilt models with a 4-inch tank opening, including the 379.
Q: Does the locking mechanism prevent fuel from spilling if the truck tips? A: The cap provides a tight seal and includes a vent, but it is not a rollover vent; for full rollover protection, consult your tank manufacturer.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.