Jeep Wrangler Diesel Conversion
Unrelenting, Powerful, Effective
There’s no such thing as too much torque…
With the diesel engines, power comes in at a low RPM giving you all the power you need right off of idle.
Not only will the diesel increase your fuel economy, but also provides the option of running alternative fuel sources like WVO.
With over 100 years of engine building and outstanding customer service, Cummins is the premiere name in diesel engine technology.
Cummins Diesel Options
3.9L 4BT Diesel Conversion
The Cummins 4BT turbo diesel is the perfect option for the Jeep enthusiast wanting to improve their vehicle’s fuel efficiency and off-road capability. In addition to boasting increased fuel efficiency, the 4BT is also capable of running alternative fuel sources like Waste Vegetable Oil. All model years of the Wrangler platform, up to 2011, can utilize this conversion.
|Configuration||Inline 4 Cylinder Turbo Diesel|
|Displacement||3.9 L, 239 Cubic Inches|
|Aspiration||Turbo Charged, Non Intercooled|
|Engine Weight||725-765 lbs|
|Oil Capacity||10 Quarts|
|Horsepower||105-170 hp@ 2300 RPM|
|Torque||265-420 ftlbs@ 1600 RPM|
The 2007 to 2011 model years of the Jeep Wrangler, at present, are able to be upgraded. We remove the stock engine and transmission and then replace it with a Cummins 4BT and stronger transmission.
The 4BT is one of most proven reliable diesel engines in the world. If properly maintained, it is not uncommon for these engines to last beyond 350,000 miles.
Bruiser Conversions supplies a variety of engine power options for those seeking to upgrade their application.
3.8L ISF Diesel Conversion
The ISF engine family is the newest addition to Cummins lineup. With exceptional performance, low weight, reduced operating costs, and the reliability and durability expected from Cummins, the ISF3.8 is ideal for light commercial vehicle applications such as trucks, vans, pickups, and utility vehicles. The ISF3.8 is the lightest and strongest engine in its displacement class and is the perfect choice for weight sensitive and space constrained installations above 3.5 tons GVW.
Check out our dyno results.
|Horsepower||170 hp @ 2600 RPM|
|Torque||485 ftlbs @ 1300 RPM|
Browse Our Gallery of Diesel ConversionsView Gallery
Diesel Conversion Pricing
|Horsepower||105 @ 2600rpm|
|Torque||360 @ 1600rpm|
|Warranty||1yr. / 12,000 miles|
|JK 2012+||not available|
|CJ5, CJ7, CJ8||$29,642|
|Boost & EGT Gauge Pillar||$1000|
Is the diesel conversion street legal?
Our engine conversions are available as an “off-road only” application. We make no assertion that our conversions are street legal. This is not due to any mechanical limitation, but solely due to compliance with federal regulations regarding emissions and motor vehicle compliance. For further information please contact your local DMV.
What is the closest Bruiser Conversions location?
Bruiser Conversions’ primary facility is located in Clearwater, FL. There are Certified Installation Facility (CIF) locations in other states that provide LS Conversions, a list of these facilities can be found on our website.
What other modifications are needed?
The sky is the limit with Jeep upgrades and modifications, but most diesel conversions only require an additional 2″ of suspension height to compensate for the added weight of the engine.
What performance upgrades are available?
Bruiser Conversions has built relationships with many aftermarket and performance vendors, if you can dream it we can build it. Please send an E-mail to our sales team at [email protected]