Land Rover 3.0T AJ20D6 Inline 6 Cylinder Diesel Engine Genuine Overhaul Kit

Product Overview

The Land Rover AJ20D6 Inline 6-Cylinder Diesel Engine Genuine Overhaul Kit is a complete OEM-quality repair solution designed to restore engine performance, reliability, and longevity. This kit includes all essential components required for a comprehensive engine rebuild, ensuring compliance with factory specifications.

Compatibility List for AJ20D6 Engine Overhaul Kit

Product Materials

• Gaskets & Seals: High-temperature-resistant multi-layer steel (MLS) head gaskets, viton rubber valve stem seals, and precision-cut cork/rubber composite gaskets for oil pans and covers.

• Bearings & Bushings: Precision-machined tri-metal main/rod bearings with anti-wear coatings; durable phosphor bronze bushings for critical pivot points.

• Piston Rings: Chrome-plated or nitrided top rings, tapered scraper rings, and oil control rings for optimal compression and lubrication.

• Bolts & Fasteners: Torque-to-yield (TTY) cylinder head bolts and hardened connecting rod bolts meeting OEM tensile strength standards.

• Additional Components: Timing chain/belt kits (if applicable), thrust washers, and OEM-specified lubricants/greases.

Applications

• Intended Use: Full engine overhaul for Land Rover vehicles equipped with the AJ20D6 3.0L diesel engine (e.g., Range Rover, Discovery models).

• Symptoms Addressed: Excessive oil consumption, loss of compression, knocking noises, or coolant/oil mixing due to gasket failure.

• Service Scenarios: Post-failure repairs, preventative maintenance for high-mileage engines, or performance restoration.

Working Principle

1. Sealing & Compression: MLS head gaskets and piston rings restore cylinder sealing, ensuring proper compression ratios (e.g., ~16:1 for diesel combustion).

2. Friction Reduction: Engine bearings with micro-groove designs maintain oil film integrity, minimizing wear under high cylinder pressures.

3. Thermal Management: Heat-resistant materials prevent gasket blowouts under extreme turbo-diesel operating temperatures (up to 220°C/428°F).

4. Precision Fit: OEM-toleranced components ensure correct clearances (e.g., 0.03–0.05mm for rod bearings) to prevent oil starvation or overheating.

Key Advantages

✔ Genuine OEM Compatibility – Direct replacement parts eliminate fitment issues.
✔ Extended Engine Life – High-wear components (e.g., rings, bearings) use upgraded materials vs. aftermarket alternatives.
✔ Comprehensive Kit – Includes all necessary parts for a single-purchase overhaul.

Note: Installation requires specialized tools (e.g., torque wrenches, ring compressors) and adherence to Land Rover’s workshop manual procedures.