Posted 8/1/2025 08:01 (#11316406 - in reply to #11316310) Subject: RE: First John Deere tractor with factory air?
nc ks
1934 A - 8/1/2025 05:45
67 or 68 4020 had the compressor under the motor if I remember correctly. Then in 69 they eliminated the ventilation pump and put the compressor on the side of the motor.
Compressor on engine block wasn't until 71 or 72. We have a 70 4020 and it does not have the compressor mounts cast into the block. Had a 71 4320 that did.
First John Deere tractor with factory air?
