John Deere 3420 Parts & Accessories

Q: How do I find the right part for my 3420?

Search by John Deere part number or browse by category on this page. Every part shown is matched to the John Deere 3420 by its compatible-models data.

1,837 parts and accessories that fit the John Deere 3420 — Filters. Genuine OEM and quality aftermarket, from an authorized John Deere dealer. Ship nationwide or pick up locally.

Shop 3420 parts by category

← All categories Filters (32)

FILTER HEAD, PRIMARY FUEL

Part #: A-RE508847

A&I Products

FILTER, SEPARATOR, FUEL/WATER

Part #: A-RE509031

A&I Products

FILTER, CAB AIR RE-CIRCUL

Part #: A-SJ14011

A&I Products

FILTER, SEPARATOR, FUEL/WATER

HOUSING, HYD., OIL FILTER

AIR FILTER, RECIRCULATION CAB AIR F

OIL FILTER, OIL FILTER, OIL ASSEMBL

Part #: RE504836

$23.48

John Deere

FILTER HEAD, PRIMARY FUEL FILTER KI

Part #: RE508847

$148.70

John Deere

FILTER ELEMENT, FILTER ELEMENT, FUE

MECHANICAL COMPONENTS

John Deere 3420 parts — frequently asked

How many parts fit the John Deere 3420?

Koenig Marketplace lists 1,837 parts and accessories that fit the John Deere 3420, including filters.

Are these genuine John Deere parts for the 3420?

Yes — Koenig is an authorized John Deere dealer, so you'll find genuine OEM John Deere parts alongside quality aftermarket options that fit the John Deere 3420.

How do I find the right part for my 3420?

Search by John Deere part number or browse by category above. Every part shown is matched to the John Deere 3420 by its compatible-models data.

Can I get 3420 parts shipped or pick them up locally?

Both. Koenig ships John Deere 3420 parts nationwide, and you can also pick up at one of Koenig's stores.

Parts for other John Deere models

John Deere 670G John Deere 8270R John Deere 8295R John Deere 6110M John Deere T670 John Deere 6120M John Deere 8200 John Deere S770 John Deere S690 John Deere S670 John Deere 6155M John Deere 8300