One Locking Diesel Fuel Cap - Peterbilt 4" SCH 40/80 Neck

This locking diesel fuel cap fits Peterbilt Semi-Trucks with 4" SCH 40/80 necks.

Constructed of high grade aluminum this locking fuel cap also features a 220°F Thermal & Pressure Relief valve. Two keys are included. Both sides of one locking fuel cap are shown here (one cap per package).

Includes 8" chain with 6.5" steel keeper wire so you don't drop or lose your cap while fueling. "Diesel Only" is stamped on top of the cap.

Cap Assembly Aluminum 4.0-8 NPSL
220°F Thermal Pressure Relief
Locking 8" Chain & 6.5" Retainer Bail
Stamped with Diesel Only
One Cap per Package

We can key two caps alike or thousands of caps. The keyed alike option is at no additional cost to you and only adds 24 hours to your order processing.

Keyed Alike Ordering Instructions:
Simply set the quantity box to reflect the number of caps you'd like to have keyed alike, put a check mark in the keyed alike selection box and then add to your cart.

If you happen to need 20 caps keyed alike and then another 30 caps keyed alike but different from the first 20, set the quantity box to reflect 50, put a check mark in the keyed alike box and then click add to cart. During the checkout process just below the payment options will be an area for order comments. In the comments box you will mention needing 20 alike and 30 alike, we'll take care of the rest.