Performance Water Pump Kit for Land Rover Discovery (2017) 3.0L

Billet Aluminum Coolant Water Pump Upgrade Kit for Land Rover Discovery (L462)

What it Does: The Performance Water Pump Kit replaces brittle factory plastic coolant crossover plumbing on the 2017 Land Rover Discovery with durable aluminum piping to prevent catastrophic coolant loss and engine overheating.

The Stock Land Rover Discovery Plastic Coolant Pipe Vulnerability

The factory cooling assembly on the AJ126 3.0L supercharged V6 relies heavily on molded composite nylon crossover pipes and flanged junctions. Subjected to intense engine-valley thermal cycling and continuous cooling system operating pressures up to 21 psi, the stock plastic degrades, embrittles, and develops stress fractures along sonic-welded seams. In the L462 chassis, these failures typically manifest beneath the supercharger snout or at the rear crossover junction, dumping engine coolant without warning and exposing the all-aluminum block to warped cylinder heads or total thermal seizure.

The Engineering Solution

This upgraded performance kit addresses factory cooling deficiencies by swapping failure-prone plastic plumbing with mandrel-formed and cast aluminum tubing. Engineered to withstand continuous exposure to 230°F+ coolant temperatures without plasticizer migration or heat fatigue, this kit includes a high-flow water pump, an aluminum connecting pipe, a heavy-duty copper fitting, and high-temp EPDM hoses. Precision O-ring grooves and heavy-gauge mounting flanges ensure leak-free sealing under sustained thermal load, effectively eliminating the primary reliability hazard of the AJ126 cooling circuit.

Technical Specifications

Compatibility

• 2017 Land Rover Discovery HSE 3.0L V6 Supercharged Gas (L462)
• 2017 Land Rover Discovery HSE Luxury 3.0L V6 Supercharged Gas (L462)
• 2017 Land Rover Discovery First Edition 3.0L V6 Supercharged Gas (L462)

Frequently Asked Questions

Does this fit the L462 Discovery?

Yes, this is a direct fit for the 2017 Land Rover Discovery equipped with the AJ126 3.0L supercharged petrol engine.

Does this kit require removing the supercharger during installation?

Yes, replacing the front and under-charger cooling pipes on the AJ126 requires unbolting the intake plenum and supercharger assembly for proper clearance and torque sequencing.

The Land Rover Precision Caliber

Engineered to meet stringent European mechanical tolerances, this upgrade restores long-term thermal management integrity without modifying factory routing, sensor provisions, or triggering check engine lights.