Range Rover L405 4.4 Rear Axle Diferential Diff I=2.73 CPLA-4A213-AB WARRANTY

Listing details

The differential is sold with a 90-day warranty! It was tested before removal and is in full working order.

The Range Rover L405 4.4 SDV8 Rear Differential CPLA-4A213-AB with a 2.73 ratio is an original drivetrain component from the Differentials - Diffs category, designed for installation on the rear axle. A used differential ensures proper torque distribution between the wheels, stabilizing drivetrain operation in demanding road conditions. This is a solution for users who expect a proven design and the preservation of factory gear ratio parameters.

Specifications and technical data

• SKU: LR039508
• Mark: Range Rover
• Condition: Used
• OEM Part Number: LR039508
• Substitutable numbers: LR039508, CPLA4A213MA, CPLA-4A213-MA, CPLA4A213BA, CPLA-4A213-BA, CPLA4A213AB, CPLA-4A213-AB
• Location on the vehicle: Rear
• Part type: Differential & Housing Assembly
• Category: Differentials

Purpose and Function of the Rear Differential

The presented rear differential is specifically designed to work with the 4.4 SDV8 engine in the Range Rover L405 model. It is responsible for compensating for the difference in rotational speed of the rear axle wheels, which translates into predictable vehicle handling, especially when cornering and on surfaces with varying grip.

The fixed gear ratio of 2.73 allows for maintaining the drive characteristics intended by the manufacturer, which is important for both dynamics and the loads transferred to other drivetrain components. Using the correct differential reduces the risk of malfunction in assistance systems such as traction control or stability control.

Construction and Vehicle Placement

The differential belongs to the Differentials - Diffs category and is intended for installation on the vehicle's rear axle. The rear axle construction in the Range Rover L405 is based on a precisely selected assembly of gears, bearings, and housing, which must work with the suspension and drive shafts within specific tolerances. Using the correct component for the rear of the vehicle ensures proper fit with the existing drivetrain geometry.

Original manufacturer markings and assignment to a specific gear ratio simplify part selection when replacing a worn or damaged differential. This allows for maintaining consistency with the factory drivetrain configuration without the need for intervention in the engine or gearbox control.

Gear Ratio Selection and Compatibility with the 4.4 SDV8 Drive

For vehicles with high torque, such as the Range Rover with a 4.4 SDV8 engine, the correct selection of the differential gear ratio is crucial for the durability of the entire system. The 2.73 ratio has been chosen to balance:

• loads transferred to the drive shafts and propeller shaft,
• engine acceleration and speed characteristics,
• operation of the automatic transmission and electronic systems.

Using a differential with a different gear ratio than factory-specified can lead to incorrect speed readings, errors in the four-wheel-drive system operation, and accelerated wear of mechanical components. Therefore, choosing the correct rear differential model is important for both safety and operating costs.

If you want to better understand how the axle ratio affects a car's behavior, it's worth reading the article discussing gear ratio selection and drivetrain component compatibility: Used Drive Axles and Differentials – How to Choose Gear Ratios for Your Driving Style.

Application of a Used Differential in Service and Tuning

A used rear differential for the Range Rover L405 4.4 SDV8 is often chosen as an economical solution for drivetrain repairs, especially in situations where mechanical damage or excessive wear of gear teeth has occurred. A correctly selected component allows for restoring proper drivetrain operation without the need for costly axle rebuilding.

In workshop practice, such a differential is used, among other things, for:

• replacement after bearing failure or housing damage,
• repairs after collisions involving the rear part of the drivetrain,
• restoring factory configuration after previous gear ratio modifications.

For users who heavily operate their vehicle off-road or with a trailer, maintaining the correct gear ratio and a functional differential directly impacts the drivetrain's smooth operation and the vehicle's predictable behavior under load.

Other Range Rover Differentials and Drivetrain Development

If you are looking for other differentials for this brand, for example, to compare gear ratios or select a component for a different engine version, check the available Range Rover Differentials - Diffs. This will allow you to select a component tailored to the specific drivetrain configuration, without the risk of incompatibility with the vehicle's electronics.

Conscious selection of a rear differential that matches the gear ratio specified for the Range Rover L405 4.4 SDV8 is a way to maintain stable drivetrain operation, reduce vibrations, and preserve driving characteristics in line with the manufacturer's intentions.