Womala Hot water pipe LR075991 for Land Rover LR4 Discovery 4
Product Overview
The Heater Manifold Pipe LR075991 is a Genuine OE-grade cooling system component for for Land Rover and for Jaguar vehicles with the 3.0L AJ126 V6 supercharged petrol engine . This pipe routes hot coolant between the cylinder heads and the heater core, playing a critical role in cabin heating and engine temperature regulation . LR122710 is the current replacement part, superseding LR075991 and multiple earlier numbers .
Key Features
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Coolant distribution – routes coolant between cylinder heads and heater core
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OE-grade quality – genuine Land Rover / Jaguar specification; upgraded metal alternatives available
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Direct-fit replacement – matches factory mounting points; no modifications required
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For 3.0L V6 supercharged petrol engines – AJ126 engine family
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Supersession – LR075991 → LR122710 (from VIN JA726230 / KA792020)
OE Cross-Reference
| Land Rover | Jaguar |
|---|---|
| LR075991 | AJ813848 |
| LR041788 | AJ814006 |
| LR087558 | AJ814053 |
| LR109401 | C2Z18624 |
| LR122710 (Current) | C2Z31644 |
???? Supersession Note: LR122710 replaces LR075991, LR041788, LR087558, and LR109401. For vehicles from VIN JA726230 / KA792020, LR122710 is the required replacement .
Vehicle Fitment
| Make | Model | Chassis | Years | Engine | VIN Notes |
|---|---|---|---|---|---|
| for Land Rover | LR4 / Discovery 4 | L319 | 2014 – 2016 | 3.0L V6 SC | — |
| for Land Rover | Discovery 5 | L462 | 2017 – 2020 | 3.0L V6 SC | — |
| for Land Rover | Range Rover | L405 | 2014 – 2022 | 3.0L V6 SC | — |
| for Land Rover | Range Rover Sport | L494 | 2014 – 2022 | 3.0L V6 SC | — |
| for Land Rover | Range Rover Velar | L560 | 2018 – 2020 | 3.0L V6 SC | — |
| for Jaguar | XF, XJ, XE, F-PACE, F-TYPE | — | 2013 – 2021 | 3.0L V6 SC | — |
VIN Notes: LR122710 applies from VIN JA726230 and KA792020 – confirm your VIN range before ordering .
⚠️ Important: LR075991 / LR122710 is specifically for the 3.0L V6 supercharged petrol engine (AJ126). Not for diesel, naturally aspirated, or V8 variants. Fitment varies by VIN range – verify before ordering.
Signs of Failure
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Coolant leaks – visible drips from the heater pipe area
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Loss of cabin heat – heater blows cold air
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Engine overheating – coolant loss causing temperature issues
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Sweet coolant smell – from the engine bay
???? The factory plastic pipe can become brittle and crack over time – upgraded metal alternatives are available for enhanced durability . This is a known failure point on AJ126 engines.
Critical – Verify Your VIN Before Ordering
Heater pipes are VIN‑, engine‑, and model‑year‑specific. VIN cut-offs apply (JA726229 / KA792019). 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. When replacing the heater pipe, inspect all cooling system hoses and connections for wear. Replace coolant with OEM-specified fluid at the correct mixture ratio after installation.
Technical Specifications
| Parameter | Detail |
|---|---|
| Part Type | Heater Manifold / Coolant Pipe |
| Engine | 3.0L V6 Supercharged (AJ126) |
| Material | Plastic (OE) / Aluminium (upgraded) |
| Condition | Brand New, OE-Grade |
| Supersession | LR075991 → LR122710 |
Why Choose Us
| Advantage | Detail |
|---|---|
| Inventory | 10,000+ SKU in stock |
| Quality | OE-grade, fully tested |
| Warranty | 18-month against manufacturing defects |
| Shipping | Global via DHL / UPS / FedEx |
| Flexibility | Sample orders welcome, low MOQ |
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
A: Signs of a failing bumper bracket include visible damage or deformation, misaligned bumper panels, unusual noises from the front end, or if the bumper appears loose or sagging on one side.
A: For optimal results, we recommend professional installation. Key considerations include ensuring proper alignment of all mounting points, checking for additional damaged components, and verifying all fasteners are properly torqued to specification.
- Extensive Industry Experience: 13 years specializing in Auto Parts auto parts with precise product matching and technical solutions.
- Quality Assurance: 10-stage quality inspection process including durability testing, surface roughness analysis, and dimensional verification.
- Manufacturing Excellence: 15,000㎡ production base with 10,000+ SKUs in inventory for fast order fulfillment.
- Strategic Partnerships: Collaborations with 50+ factories including suppliers to international brands like Womala and Hella.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.