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The Daily Insight

How much does a diesel conversion cost?

Author

William Smith

Updated on April 04, 2026

How much does a diesel Cummins conversion cost? Prices can vary from roughly $5,000 to $10,000 or more. It all depends on what engine you choose, where you are swapping it, how you are swapping it, and the amount of labor necessary to complete the project.

How much does it cost to put a diesel in a Jeep?

Generally, the average Wrangler diesel conversion cost can range from as less as $1000 way up to $10,000. Depending on your experience, it’s easy to convert your diesel engine in a few steps. You just have to find all the parts needed for the conversion.

Can you put a diesel motor in a Jeep?

The Jeep Wrangler will finally add a diesel engine for the 2020 model year. The 3.0-liter EcoDiesel V-6 engine will be available by the end of this year on four-door Wrangler models paired with an eight-speed automatic transmission….

Can you diesel swap a Jeep Wrangler?

The Jeep world went wild with anticipation when Mopar announced a diesel conversion for TJ Wranglers, utilizing their 2.8L diesel mill. Diesel lovers rejoice! Diesel Bruiser Conversions is swapping Cummins diesels into not only CJ, YJ, and TJ Jeeps, but has perfected the JK Wrangler swap, as well.

How much does a Duramax conversion cost?

Priced From $38,200 Engine/Transmission conversion only. Base vehicle not included. Add the reliability and performance of the Duramax and Allison 6 Speed to your Humvee from just $38k.

What diesel engine can you put in a Jeep Wrangler?

The Jeep Wrangler will finally add a diesel engine for the 2020 model year. The 3.0-liter EcoDiesel V-6 engine will be available by the end of this year on four-door Wrangler models paired with an eight-speed automatic transmission.

Can you put a 5.9 Cummins in a Jeep Wrangler?

5.9L Cummins Swap Plenty of modifications were made to the firewall and footwells with a Hobart plasma cutter, but with HeatShield wrap on the hot engine parts and a firewall extension fabricated by AEM, everything fit behind the factory Wrangler dash.

Who makes 4bt diesel conversions?

4BT Diesel Conversions Jeff Daniel’s is the Pioneer of 4BT diesel conversions. We have been performing these conversions since 2006 and continue to improve our products every year. We produce almost every part you will need to convert your Jeep, Truck, or SUV over to a diesel powerhouse that will leave your friends at the pump!

Can you put a Cummins diesel in a Jeep Wrangler?

When it never materialized, people were not only let down, they were angry with Chrysler, as well as us, for announcing the still-born conversion as fact. Diesel lovers rejoice! Diesel Bruiser Conversions is swapping Cummins diesels into not only CJ, YJ, and TJ Jeeps, but has perfected the JK Wrangler swap, as well.

Can I convert my diesel engine to an on-road vehicle?

Conversion kits are intended for “Off Road” use and will require suspension lift and/or modifications. Due to different inspection and registration regulations in each state, we recommend checking with your state laws regarding allowable diesel engine conversions for “On Road” use before purchasing.

How long have we been doing diesel conversions for?

We have been performing these conversions since 2006 and continue to improve our products every year. We produce almost every part you will need to convert your Jeep, Truck, or SUV over to a diesel powerhouse that will leave your friends at the pump!