Land Rover Discovery 3 L319 Gearbox Wiring Loom TDV6 2.7 YMD501642

Description

Land Rover Discovery 3 L319 Gearbox Wiring Loom TDV6 2.7 is an original component from the Wires, looms and connectors group, designed for the control and power supply system of the automatic transmission in the TDV6 2.7 unit. This used, factory-made wiring loom ensures proper electrical signal routing and stable connections between the gearbox and the vehicle’s electrical system, which is crucial for the correct operation of the drivetrain and control electronics.

Specifications and technical data

• SKU: YMD501642
• Mark: Land Rover
• Condition: Used
• OEM Part Number: YMD501642
• Substitutable numbers: YMD501642, 5H227A488CA, 5H22-7A488-CA
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle

The gearbox wiring loom in the Discovery 3 L319 model with the TDV6 2.7 engine is responsible for transmitting signals between sensors, solenoid valves, and gearbox control modules and the vehicle’s main electrical installation. A correctly selected component from this group minimizes the risk of:

• disturbances in the operation of the automatic transmission,
• interruption of communication with the control module,
• appearance of errors related to the gearbox emergency mode,
• starting or gear shifting problems resulting from wire damage.

By using an original wiring loom dedicated to the specific TDV6 2.7 drivetrain configuration, the correct wire routing geometry, appropriate segment lengths, and matching of connectors to the factory gearbox sockets and vehicle installation are maintained.

Construction and advantages of the original Land Rover wiring loom

The component belongs to the Wires, looms and connectors group, which means it has been designed as a complete solution including wires, insulation, and factory connectors matched to the specific model. In practice, this translates into:

• secure, stable electrical connections without the need for installation modifications,
• preservation of factory resistance to operating conditions in the engine bay (moisture, temperature changes, vibrations),
• easier installation thanks to wire routing in accordance with original mounting points.

The original Land Rover solution reduces the risk of incorrect connection, which often occurs when using universal or non-adapted looms. This is particularly important in the case of automatic transmissions, where signal quality and correct pin assignment have a direct impact on the drivetrain’s performance culture.

Condition, fitment, and service application

The wiring loom is a used component, which in practice means it comes from vehicle dismantling and can be a cost-effective alternative to a new part while maintaining the factory design. In service applications, it will work well both for repairs after mechanical damage to the wires and for replacing looms with signs of contact corrosion or insulation chafing.

Before installation, a standard workshop procedure is recommended, including checking the condition of connectors, mounting points, and correct positioning of the loom relative to the gearbox and adjacent components. A correctly installed gearbox wiring loom in a Discovery 3 L319 with a TDV6 2.7 engine allows for restoring stable operation of the drivetrain without the need for interference with the vehicle’s main electrical installation.

Benefits of choosing an original used wiring loom

Using a factory gearbox wiring loom in this Land Rover model is a solution that combines controlled costs with maintaining the design intended by the manufacturer. The most important advantages include:

• factory fitment of connectors and wire lengths for the Discovery 3 L319 with the TDV6 2.7 unit,
• no need to modify the installation or use adapters,
• the possibility of restoring proper communication between the gearbox and vehicle electronics after damage to the original loom,
• a reasonable compromise between cost and functionality thanks to the use of a used part.

If you are considering a choice between new replacements and dismantled parts, the article comparing both options may be helpful – you will find a detailed discussion in the material New or used? Comparison of costs and quality of car parts.

Expanding repairs within the Land Rover gearbox installation

If you are planning a comprehensive repair or upgrade of the gearbox electrical installation area in your Land Rover and need other components from the same group, such as additional looms, signal wires, or service connectors, check the available parts in the Land Rover Wires, looms and connectors category.