JYINCPED Transfer Tank Cap Vented Diesel Fuel Cap – 2-inch NPT Base

Protect your fueling system with a trusted vented cap

The JYINCPED Transfer Tank Cap is designed for standard 2-inch NPT tank bung bases, offering a practical solution for venting, sealing, and safeguarding auxiliary and storage tanks. It’s built to handle diesel, gasoline, and distillate tanks across ground, farm, and commercial environments. Instead of simply sealing a opening, this cap manages air and vapor flow to support safer, more predictable fills and transfers.

Key benefits in real-world use

• Venting in both directions releases internal pressure to the outside, reducing the risk of vapor build-up during fueling and transport.
• Allowing controlled air entry helps prevent vacuum formation, which can stress or collapse a tank when fuel is drawn out.

On rough roads or busy workdays, the cap’s design aims to minimize unnecessary gas venting while maintaining a reliable seal when closed. This balance helps keep your equipment, fuel, and work site safer and cleaner.

Leak prevention and durability

• The spring-loaded gasket tightens securely to resist leaks and minimize vapor escape as you drive or move between jobs.
• Crafted from rugged, waterproof, and corrosion-resistant materials to stand up to challenging environments and long-term use.

Installation and removal are straightforward. The cap aligns with a notch, then is pushed down and twisted to lock. To vent and remove, twist counter-clockwise to release pressure, then lift. This makes it suitable for a range of diesel, gas, and auxiliary tanks.

Compatibility and versatility

Designed for a broad set of tanks, including transfer tanks, fuel tanks, gas tanks, diesel tanks, auxiliary tanks, mobile tanks, and weather-guard tanks. It’s a versatile fit for vehicles and storage solutions that rely on a dependable, vented cap.

What you get

A robust, vented transfer tank cap ready for use with your 2-inch bung base. It focuses on reliable sealing, controlled venting, and long-term performance.