Description
The 4 1/4 locking diesel fuel cap is an aluminum, non-vented, male threaded cap with 8 threads per inch, featuring thermal relief, a safety chain, and a patented moisture protection system.
- Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
- Independently tested for emission control.
- Manufactured from durable, long-life materials
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