Aluminum Locking
Diesel Fuel Cap –
3.00″ Diameter

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  Aluminum Non-Locking
  Diesel Fuel Cap –
  3.00″ Diameter

  The FC1349AD from Cleveland Tank is a 3.00-inch diesel fuel cap machined from lightweight, corrosion-resistant aluminum, built to resist leaks, cracks, and contamination over years of service. It has a female thread design at 8 threads per inch (8 TPI), non-locking and non-vented, for diesel fuel systems specifying a standard 3.00-inch, 8 TPI female-thread cap. Weighing 1.0 lb at 3.0 x 3.0 x 2.0 inches, it installs as a direct-fit replacement without any modification to the tank opening — a simple, no-hardware swap for a cracked, corroded, or missing OE cap.
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  Aluminum Non-Locking
  Diesel Fuel Cap –
  3.00″ Diameter

  The FC1086 from Cleveland Tank is a 3.00-inch diesel fuel cap for fuel systems that don’t require a locking closure. It shares the same 3.00-inch diameter and 8 TPI female thread as Cleveland Tank’s locking caps in this size, so fitment is identical — it’s simply the non-locking option. Machined from lightweight, corrosion-resistant aluminum, it resists the rust and pitting that shorten the life of a steel cap. Non-vented as well, the FC1086 is a straightforward, direct-fit replacement for diesel fuel tanks specifying a 3.00-inch, 8 TPI female-thread cap. It weighs 1.0 lb.
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  Aluminum Locking
  Diesel Fuel Cap –
  3.00″ Diameter

  The FC980 from Cleveland Tank is a vented, locking diesel fuel cap built for fuel systems that rely on the cap itself to relieve tank pressure and admit air as fuel is drawn down — rather than a separate equalizer line. It has a 3.00-inch nominal diameter and female threads at 8 threads per inch (8 TPI), machined from lightweight, corrosion-resistant aluminum for long service life over a standard steel cap. The integrated lock helps deter fuel theft and tampering, while the vented design prevents the vacuum lock that can starve a fuel system of a properly working vent path. At 1.0 lb and 3.0 x 3.0 x 2.0 inches, it’s a direct-fit replacement for diesel fuel tanks specifying a 3.00-inch, 8 TPI female-thread vented cap.
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  Aluminum Locking
  Diesel Fuel Cap –
  3.00″ Diameter

  Aluminum Locking Diesel Fuel Cap, 3.00 Inch Diameter (Part Number FC022-69) by Cleveland Tank. Heavy-duty locking fuel cap machined from lightweight, corrosion-resistant aluminum to resist leaks, cracks, and fuel contamination. Features a 3.00-inch nominal diameter with female threads at 8 threads per inch (8 TPI), a non-vented design, and a built-in locking mechanism to help deter fuel theft and tampering. Weighs 1.0 lb with overall dimensions of 3.0 x 3.0 x 2.0 inches. Designed as a direct-fit replacement diesel fuel tank cap for fuel systems requiring a 3.00-inch female-thread, 8 TPI fitting. Suited for fleet, vocational, and commercial truck fuel tank applications where a secure, weather-tight, anti-corrosion locking fuel cap is needed.