John Deere 4520

John Deere 4520

Category:

Autos & Vehicles

Tags:

• Cornwall
• john
• deere
• 4520
• vintage

[jdcornwall1]

the only numbers on sides of my 4520 reads 4520 diesel thank you for coment

[jdcornwall1]

to 6030 engine serial no of 4520 is 228456 iwill send you on board ploughing video soonthank you for cmments on the 4520 it came from indiana july 2008 regards jdcornwall 4520

[1122aalleexx]

what do the numbers on the side mean

[thegreenerthemeaner]

There were 3 different series injection pumps and 2 different air filtration systems on the 4520. The 4620 had the intercooler and yet another air filtration system. They were pretty much the same as the 4520 they replaced otherwise. The 4620 used the same setup as the 7020 until the 4630 arrived, then the 7020 used a slightly different hood and completely different air filtrattion system; look at a pic of an early 7020 and a late one from the left side.

[MultiBaldEagle]

@6030diesel ....well.....I'll be damn! Learn something every day, don't we? Thanx for sharing that. Now I know.

[6030diesel]

@MultiBaldEagle it was a certain engine serial number that they all got upgraded. 21MM bosch injectors, roosa master JDC injection pump driven off the timing gears(not the camshaft) and a intake manifold intercooler, the exact same part number as a 4620's and 7020's. i went on JDparts.com this morning and the late 4520 and 4620 intercoolers were the same piece. the hood was widened on the later ones along with that side sheild with the releif bend in it to accept that big intake manifold.

[MultiBaldEagle]

Any how.....jdcornwall1 has a couple of nice looking pieces of iron with this 45 and his old 50.

They were awesome machines in their day!

[MultiBaldEagle]

@6030diesel ...by late model, I assume then, you mean a 69. If there was an intercooler (and I'm not doubting you), it had to be somewhere inside the engine or up underneath the hood. It wasn't visible like on the 4620 or 6030.

[6030diesel]

@MultiBaldEagle nah man. the late model 4520's got the JDC injection pump driven off the timing gears and an in intake intercooler. they were essentially 4620's. 

[MultiBaldEagle]

@6030diesel ....they only made the 4520 for 2 years....1968 and 69. It had no factory-installed intercooler. Some guys had them retrofitted with an AFTERcooler, like came on a 4640 or 4840.

But John Deer didn't introduce the intercooler til 1970 when it came out on the 4620 and 6030.

[brycesohm]

I want those fenders for my 4320