The fuel cooling system plays a vital role in modern diesel engines, preventing fuel from overheating during extended operation or under heavy loads. In Land Rover's 3.0-liter diesel engines, the fuel cooler inlet hose-OE number LR035633-is responsible for delivering hot fuel from the engine to the fuel cooler. A cracked, swollen, or leaking LR035633 hose can cause fuel odor, reduced engine performance, and even fire hazards.
As a factory‑direct manufacturer with IATF 16949 certification, Guangzhou Sanjin Auto Parts Co., Ltd. produces the LR035633 fuel cooler inlet hose to original equipment (OE) specifications. This article provides a complete overview of the part, its applications, quality features, and why B2B buyers worldwide trust Sanjin for Land Rover fuel system components.
What is LR035633?
LR035633 is an original equipment (OE) part number assigned by Land Rover. It refers to the fuel cooler inlet hose-a rubber hose that transports hot diesel fuel from the engine's fuel system to the fuel cooler (typically mounted near the radiator or cooling pack). After the fuel is cooled, it returns to the fuel tank or the high‑pressure fuel pump.
This component is critical for maintaining proper fuel temperature, which helps:
- Prevent fuel vaporisation and cavitation in the injection system
- Reduce emissions and improve combustion efficiency
- Protect sensitive fuel system components from heat damage
- For Land Rover 3.0‑liter diesel engines (TDV6 / SDV6), a degraded or leaking LR035633 hose must be replaced immediately with an OE‑quality part.
Key Features of LR035633 Fuel Cooler Inlet Hose
Guangzhou Sanjin manufactures the LR035633 hose using automotive‑grade materials and strict process controls.
1. Fuel & Heat Resistant Compound
The hose is constructed from a synthetic rubber (typically FKM / NBR / CSM) inner liner that resists diesel fuel, biodiesel blends, and high under‑hood temperatures. The outer cover is ozone and abrasion resistant, ensuring long service life even in harsh environments.
2. Temperature & Pressure Specifications
Working temperature range: -40°C to +135°C (peak +150°C)
Working pressure: Designed for low‑pressure fuel return/cooling circuits (typical 0.3–0.5 MPa, burst pressure >2.0 MPa)
Compliant with: SAE J30 (fuel hose standard) and ISO 11425
3. OEM Fitment & Connection
The LR035633 fuel cooler inlet hose is shaped and terminated exactly to Land Rover's original design. It features factory‑formed bends and push‑fit or clamp‑type connectors that match the engine's fuel cooler and fuel rail connections. No modifications are needed during installation.
4. 100% Leak & Pulse Testing
Every production batch undergoes pressure decay testing and pulse fatigue testing to ensure zero leakage and long‑term reliability. Sanjin's IATF 16949 quality system guarantees traceability and consistency.
Why the Fuel Cooler Inlet Hose Fails and When to Replace
Common failure signs of LR035633 include:
Visible cracks or bulging on the rubber surface
Dampness or wetness around the fuel cooler connections
Strong diesel smell after driving
Hard starting or rough idle (air ingress into fuel system)
Replacement is recommended every 80,000–120,000 km or at the first sign of deterioration. Using a substandard hose can lead to fuel leaks, engine derating, or fire risk. Sanjin's LR035633 offers OE reliability at a competitive price.
Quality Assurance – IATF 16949 Certified Factory
Guangzhou Sanjin Auto Parts Co., Ltd. operates under IATF 16949:2016 – the strictest global quality standard for automotive supply chains. Sanjin's quality control includes:
Raw material incoming inspection (rubber, reinforcement fibers, fittings)
In‑process dimensional checks
100% hydrostatic pressure test and leakage test
Accelerated aging and heat resistance validation
Salt spray test for metal connectors
With 22 years of production experience and three factories in China, Sanjin supplies OE-grade fuel hoses to over 60 countries.
Conclusion
The LR035633 fuel cooler inlet hose is a mission‑critical component for Land Rover 3.0‑liter diesel engines. It ensures proper fuel temperature, protects expensive injection system components, and prevents dangerous fuel leaks.
Guangzhou Sanjin Auto Parts Co., Ltd. delivers this part with factory‑direct pricing, IATF 16949 quality assurance, and a 2‑year warranty. For wholesalers, distributors, and repair shops serving the Land Rover aftermarket, Sanjin is a reliable long‑term partner.
Contact Guangzhou Sanjin today to request a quote for LR035633 or to discuss your full Land Rover hose requirements.
Frequently Asked Questions (FAQ)
Q1: What is the exact function of LR035633?
A: LR035633 is a fuel cooler inlet hose. It carries hot diesel fuel from the engine (usually from the fuel rail or filter) to the fuel cooler. After cooling, the fuel returns to the tank or to the injection pump. This prevents fuel overheating and protects the injection system.
Q2: Is LR035633 compatible with LR062093?
A: Yes. Land Rover has superseded LR035633 to LR062093 in some markets. Both numbers refer to the same fuel cooler inlet hose. Guangzhou Sanjin supplies the latest design that works for both OE references.
Q3: Which Land Rover models use this hose?
A: Primarily Range Rover (L405) and Range Rover Sport (L494) with 3.0L TDV6 / SDV6 diesel engines, model years approximately 2012–2021. Always verify with your vehicle VIN before ordering.
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