Fuel system cap for General Motors 3.0 Diesel in 1500 pickups. Protect your vehicle's fuel system from unwanted dirt or water. This is specifically for the Duramax Diesel capless fuel system on the Silverado Sierra 3.0L Duramax Diesel engine. If it doesn't have that specific engine in a Half-ton pickup I cannot guarantee fitment. Made of aluminnum-alloy material giving it a tough, reliable fit. Just slide it onto your fuel filler neck and it'll keep all the debris away.
Material Construction: Made from durable magnetic aluminum for long-lasting performance and secure closure
Easy Installation: Direct replacement fuel cap that fits seamlessly with your vehicle's fuel tank system
Magnetic design: Permanent magnet neodymium iron boron strong magnet, with high strength and greater suction force. I'm no longer afraid of losing the dust cover when refueling
Quality Assurance: Manufactured to meet OEM specifications for reliable performance and durability