STEINBAUER application directory

John Deere 8420 Power Increase & Performance Modules

STEINBAUER offers a published performance application for the John Deere 8420 with the 8.1. Published power increases from 266 HP to 319 HP. The matching STEINBAUER part number is 220025. Open the application below for installation information and ordering options.

1 published application
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John Deere 8420 engine and power variants

Model-specific application guide

John Deere 8420 STEINBAUER performance options

This page brings together the published STEINBAUER applications for the John Deere 8420. The published application is for 8.1 and increases power from 266 HP to 319 HP. The matching STEINBAUER module is part 220025. Each application page provides the compatible part number, installation information and published power and torque data where available.

Frequently asked questions

John Deere 8420 FAQs

Which STEINBAUER module fits my John Deere 8420?

Choose the exact engine or variant and original power output shown on this page. Each application links to the matching STEINBAUER part number and application details.

Does STEINBAUER remap the John Deere 8420 ECU?

No. The STEINBAUER performance module works alongside the original engine management system rather than reprogramming the factory ECU software.

How much additional power is available for the John Deere 8420?

The published application increases power from 266 HP to 319 HP.

Can I order the John Deere 8420 STEINBAUER module online?

Where online ordering is available, the exact application page shows the compatible product and purchasing options. If you are unsure which application matches your machine or vehicle, contact STEINBAUER UK before ordering.