Author	[Modern View]
JDJim 01-18-2013 12:18:10 206.132.49.5 Report to Moderator	I have both 4000 and 4020 late models without precleaner. Both have exact same components underhood. I have seen some with the precleaner and assumed it was an option. I guess I don't have an answer. Personally I like them without, think they look cleaner and more modern. [Reply]   [No Email]
Tx Jim 01-18-2013 12:36:43 67.142.163.27 Report to Moderator	Re: 4020 in reply to JDJim, 01-18-2013 12:18:10   Both of your tractors have a filter element(parts key #2) that older tractors didn't have. The precleaner pipe(AR78485) is the same for early & late model 4020's. Parts key #2 AR51923 CLEANER SAFETY AIR /PARTS/ ADD 130.44 USD For $130.44 I'd rather have the precleaner above the hood. In fact on my 4255 I have a Turbo ll precleaner that has a fan in it to help pull out some dust prior to air entering air cleaner. This post was edited by Tx Jim at 12:46:42 01/18/13 2 times. [Reply]  [No Email]
TIMAR 01-21-2013 06:35:50 208.92.171.160 Report to Moderator	Re: 4020 in reply to Tx Jim, 01-18-2013 12:36:43   The 69 and 70 models did not have the the #2 element in the parts picture. Deere added this in 71 an72 with the new block assembly [Reply]  [No Email]
Tx Jim 01-21-2013 09:14:35 67.142.163.27 Report to Moderator	Re: 4020 in reply to TIMAR, 01-21-2013 06:35:50   Thanks for correcting my mistake. JD parts shows SN 250,000 as the start for the extra filter. [Reply]  [No Email]
JD Jim 01-18-2013 14:37:11 206.132.49.5 Report to Moderator	Re: 4020 in reply to Tx Jim, 01-18-2013 12:36:43   Hey Tx Jim I agree down in that dusty Texas air I bet you need it. These old tractors are just toys for me now. My new ones have far superior filter systems on them though. I am amazed at the technology on the new machines. Kind of hard to keep up, changes fast. [Reply]  [No Email]