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John Deere Tractors Discussion Forum
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Re: 4020

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Author  [Modern View]

01-18-2013 12:18:10

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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.

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Tx Jim

01-18-2013 12:36:43

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 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.

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01-21-2013 06:35:50

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 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

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Tx Jim

01-21-2013 09:14:35

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 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.

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JD Jim

01-18-2013 14:37:11

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 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.

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