Mercedes OM606 Land Rover Defender Conversion Kit
The OM606 Defender conversion kit is designed to install the legendary 3.0L inline six OM606 turbo diesel engine into Land Rover Defender models. Known for extreme durability, smooth power delivery, and massive tuning potential, the OM606 is one of the most reliable diesel engines ever produced.
This kit allows a bolt in style installation with minimal fabrication, making it ideal for off road builds, expedition vehicles, and high torque daily drivers. Capable of handling 600+ Nm with upgraded fueling and turbo systems, the OM606 Defender swap delivers unmatched reliability and mechanical simplicity.
Each conversion kit is engineered for correct drivetrain alignment, proper cooling, and long term durability under heavy loads and extreme terrain.
Vehicle Compatibility
Direct Fit
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Land Rover Defender 90 / 110 / 130
Gearbox / Driveline
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Land Rover R380
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ZF 4HP22 / 4HP24 (automatic optional)
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Suitable Mercedes manual gearbox
What’s Included
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OM606 engine (Fully Rebuild)
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OM606 → gearbox adapter plate
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Flywheel
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Clutch kit
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Engine mounts (Defender specific)
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Gearbox mount / crossmember
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Custom Propshaft
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Cooling system (radiator + fan)
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Fuel supply system
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Exhaust system
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Throttle linkage
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Basic wiring (starter, alternator, glow)
The kit contains everything needed to install the OM606 engine mechanically, without requiring any electronic ECU integration.
The kit is supplied with a detailed step by step installation video, covering the complete conversion process from start to finish.
The guide walks through engine fitment, 8HP gearbox installation, wiring integration, and final setup, ensuring a smooth and correct installation.
Please state your defender and transmission in the notes during checkout.
WARRATY;
12 months warranty, money back guarantee and hassle free returns.
Delivery Time;
5 working days. Will usually dispatch within same working day if paid before 14:00 (excludes weekends and holidays). Expected dispatch time may vary and is based on sellers order cut off time.
Shipping Price;
Contact us with your address and we will send you a shipping quote.
Email: contact@bavarianengines.com
Whatsapp: +49 15510 191217
Leon Morgan –
Installed the OM606 Defender swap kit and it fits exactly as it should. Everything lined up properly, no guesswork or rework needed, which saved a lot of time. Solid kit and clearly designed by people who understand this swap.