Womala Oil Cooler Tube Seal Oe LR030593 for Land Rover Discovery Land Rover LR4

Product Overview

The Water Pump O-Ring LR030593 (Jaguar equivalent AJ811539) is an OE-grade sealing ring engineered for the 3.0L supercharged V6 and 5.0L V8 petrol engines (AJ126 / AJ133) in select for Land Rover and for Jaguar vehicles. This O-ring seals the joint between the engine oil cooler outlet pipe and the water pump, maintaining a leak-free seal at the oil-cooler-to-water-pump interface within the engine cooling circuit .AJ811539 is the Jaguar equivalent part number for the same sealing ring.

⚠️ Important: This O-ring is specifically for petrol engines — 3.0L supercharged V6 and 5.0L V8 (AJ133). It is not compatible with diesel variants .

Key Features

• Prevents coolant and oil leaks — seals the critical joint between the oil cooler outlet pipe and water pump 

• EPDM rubber construction — durable material resistant to coolant and heat cycling 

• OE-grade quality — available as Genuine Land Rover, Elring, AJUSA, Eurospare, and URO Parts alternatives 

• Single-use design — must be renewed whenever the oil cooler or water pump joint is disturbed; a used ring can weep once refitted 

OE Cross-Reference

Aftermarket equivalents: Elring 907.510 · AJUSA 01481700 · Eurospare LR030593ES · URO Parts AJ811539

💡 Note: LR030593 and AJ811539 refer to the same water pump O-ring / oil cooler tube seal .

Technical Specifications

Vehicle Fitment

⚠️ Important: This O-ring fits petrol engines only — 3.0L supercharged V6 and 5.0L V8 (AJ133/AJ126). Confirm your engine type and VIN before ordering .

Signs of Failure

• Coolant leaks — visible drips at the oil cooler / water pump joint

• Oil leaks — visible oil residue at the same interface

• Low coolant warning — recurring need to top up the reservoir

• Engine overheating — coolant loss compromising temperature regulation

💡 The sealing ring is typically renewed any time the oil cooler or water pump joint is disturbed, since a used ring can weep once refitted. Fitting a fresh one avoids a coolant or oil leak at the interface .

Critical – Verify Your VIN Before Ordering

Water pump O-rings are engine- and joint-specific. Provide your VIN – our team confirms exact compatibility before dispatch. We cannot accept returns for misordered parts without VIN verification.

💡 Installation Tip: Professional installation recommended. This is a single-use seal — do not reuse. Clean all sealing surfaces thoroughly before installation. When replacing the water pump or oil cooler, renew this O-ring simultaneously to avoid repeat disassembly. Refill with OEM-specified coolant at the correct mixture ratio and bleed the cooling system thoroughly.

Why Choose Us

Contact us for bulk orders or VIN‑checked quotes.

Specifications subject to change; images for reference only.Aftermarket replacement – not affiliated with Jaguar Land Rover.

Frequently Asked Questions

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