Twist On Style Fuel Filler Neck Bung

18 Gauge Cold Rolled Steel Fuel Filler Necks

1TN GM Style Neck Bung Specs:

• 2.28" OD
• 1.53" ID
• 2" tall

2TN Early Ford Style Neck Bung Specs:

• 2.59" OD
• 1.875" ID
• 2.25" tall

1TN

GM Style Fuel Filler Neck Bung - 2-9/32" OD       

2TN

Early Ford Fuel Filler Neck Bung - 2-19/32" OD