ICEBOX OEM-Equivalent Parts certified

ICEBOX OEM-Equivalent Parts

Google Business 4.5-Star Rated certified

Google Business 4.5-Star Rated

John Deere 6420 Radiator & Cooling System Parts

John Deere 6420 Radiator & Cooling System Parts covers a comprehensive range of aftermarket cooling components including radiators, charge air coolers, oil coolers, AC condensers, and transmission coolers. Sourced by Radiator Supply House, these parts ensure reliable thermal management for John Deere 6420 tractors in agricultural and industrial applications.

John Deere Cooling Components Collection

Our Range of Products

John Deere Cooling Components Collection

John Deere Cooling Components Collection

  • 565+ John Deere cooling parts in stock
  • Covers tractors, dozers & gen-sets
  • Full range: radiators, coolers & AC

Frequently Asked Questions

What kind of engine does a 6420 have?

The John Deere 6420 is powered by a John Deere PowerTech 4.5L four-cylinder diesel engine (model 4045). It produces approximately 90 to 105 horsepower depending on the configuration. This engine relies on an efficient cooling system — including the radiator, charge air cooler, and oil cooler — to maintain optimal operating temperatures under heavy agricultural loads.

What cooling system parts are available for the John Deere 6420?

Are these John Deere 6420 cooling parts OEM or aftermarket?

How do I know if a radiator or cooler fits my John Deere 6420?

Can I order John Deere 6420 cooling parts online?

What causes a John Deere 6420 to overheat?

Does Radiator Supply House ship John Deere 6420 cooling parts across the USA?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Agriculture & Farming

Agriculture & Farming

Replacement cooling parts for John Deere 6420 tractors used in row cropping, tillage, and field operations.

Construction & Mining

Construction & Mining

Cooling system components for John Deere heavy equipment operating in demanding construction and excavation environments.

Power Generation

Power Generation

Radiator and cooling package replacements for John Deere engine-based gen-sets and stationary power units.

Industrial & Material Handling

Industrial & Material Handling

Hydraulic and hydrostatic oil coolers for John Deere-powered industrial machinery and material handling equipment.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Agricultural & Equipment Professionals Choose Radiator Supply House

Specialized Cooling System Expertise

Focused exclusively on radiators and cooling components, we stock 565+ John Deere-compatible parts for precise, reliable replacements.

OEM-Equivalent ICEBOX Quality

Our ICEBOX replacement parts deliver OEM-equivalent fit and performance, minimizing downtime on your John Deere 6420 in the field.

Wide Range of Component Types

From radiators and charge air coolers to AC condensers and transmission oil coolers, we supply complete cooling solutions in one place.

Get the Right Cooling Part for Your John Deere 6420

Submit your request and our team will confirm part fitment, pricing, and availability — typically within one business day.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +1 877-615-3002.