For Dubuque John Deere Tractors 420, 430, 320, 330. This spring clamp, also known as a Corbin Clamp, was original equipment in various John Deere tractors including the LP tractors. This spring clamp fits the air cleaner and intake system.  It will also fit the 320 & 330 radiator hose. This Corbin clamp is expandable to approximately 2-1/2".   These spring clamps are temperature compensated to maintain a constant good fit under varying temperature loads.  The spring clamps have a semi gold appearance with a zinc dichromate finish. Excellent unpainted appearance. These clamps will restore your Dubuque John Deere tractor to the original clamp style found from the factory.

Equivalent to John Deere Part AR21840R