Piston Oil Cooling Valve

LR073684 Genuine Valve Piston Oil Cooling

The genuineLand Rover piston oil coolingLR073684, also cross-referenced as AJ813393 on Jaguar applications. It is fitted across Ingenium engine variants, including the AJ20D4 diesel and AJ20P6 petrol, covering the Defender L663 from 2019, Discovery Sport L550, Discovery 5 L462, Range Rover Sport L494, Range Rover Velar L560 and Range Rover L405. Always confirm your VIN and engine code before ordering, as fitment varies by build date.

Regulating oil flow to the piston cooling galleries in the cylinder block, the valve is a precision component on a high-value engine. When it sticks or seizes, the cooling circuit is disrupted, piston temperatures rise under load, and wear accelerates to the crowns, rings and bore. Low-cost to replace, expensive to ignore.

We stock the full range of Land Rover oil cooling valve components and Ingenium engine parts for all affected models. For Discovery Sport AJ20D4 diesel engine components, our Discovery Sport 2.0L AJ20D4 diesel engine components section is the right starting point. Discovery 5 L462 Ingenium engine parts are listed in our Discovery 5 engine components section, and Defender 2019 on Ingenium components sit in our Defender 2019 section alongside the Discovery Sport range.

Bill and Graham Rimmer founded the business in Lincoln in 1982. Today we stock over 2 million genuine, OEM and aftermarket Land Rover and Range Rover parts from our 105,000 sq ft warehouse, with same-day dispatch to the UK and 195 worldwide destinations.

LR073684 is in stock.

The correct genuine piston oil cooling valve for Discovery Sport L550 models fitted with Ingenium diesel and petrol engines carries part number LR073684. Fitment varies by build date and engine code, so check both against your VIN plate before placing your order.

Carrying part number LR073684 on Land Rover applications and AJ813393 on Jaguar, these are the same genuine piston oil cooling valve. The Jaguar reference covers Ingenium-engined models, including the XE, F-Pace and E-Pace. If you have sourced your number from a Jaguar application, LR073684 is the correct Land Rover equivalent to order.

A sticking or seized Land Rover oil cooling valve restricts flow to the piston cooling galleries, raising piston temperatures under load. Over time, this accelerates wear to the crowns, rings and cylinder bores. On any Ingenium engine, replacing LR073684 at the first sign of a fault is sound practice.

Part number LR073684 is correct for Range Rover Velar L560 and Range Rover Sport L494 models fitted with Ingenium diesel and petrol engines. It also covers Range Rover L405 Ingenium variants. Always verify your VIN and engine code before ordering.