LR089143 Oil Pump for Land Rover Discovery 4 3.6 TDV8 & 4.4 SDV8 (448DT / 368DT)

Technical Specifications

Why Choose Our Factory-Direct Supply?

As a specialist manufacturer based in China, we understand that for engine rebuilders and distributors in Europe and the UK, reliability outweighs a slightly lower price tag. We do not maintain European warehouses; instead, we ship OEM-grade quality directly from our production line to your facility.

• Strict Quality Control: Every 6H4Q6600DB oil pump for 368DT diesel undergoes rigorous bench testing. We simulate operating temperatures up to 105°C to ensure the pressure relief valve and rotor assembly perform under stress.
• OEM-Spec Precision: We use high-grade alloys that resist thermal expansion. This ensures that when the engine reaches peak temperature, the internal clearances don’t widen, which would otherwise lead to the dreaded “Oil Pressure Low” warning at idle.
• Stable Supply Chain: We maintain a consistent stock of LR089143 Oil Pump units, allowing for rapid batch dispatch to wholesalers and engine re-manufacturers.
• Cost Efficiency: By eliminating middleman distributors in Europe, we provide a direct factory-to-workshop price without compromising on the technical standards required for the range rover sport l320 4.4 tdv8 oil pump.

FAQ

1. Does this oil pump fit both 3.6 TDV8 and 4.4 TDV8/SDV8 engines?

Yes, the LR089143 Oil Pump covers both 368DT (3.6L) and 448DT (4.4L) variants. Confirm via engine code or VIN decode.

2. Are LR089143, LR050540, LR014546, and LR002448 interchangeable?

Yes, all numbers reference the same physical pump. LR089143 is the current supersession. The 6H4Q6600DB oil pump for 368DT diesel (Ford/Jaguar reference) is also identical. They’re direct interchanges requiring no modifications.

3. What are symptoms of a failing TDV8 oil pump?

Low oil pressure warnings at hot idle are most common. You’ll first notice the warning light flickering at idle after motorway runs. Other symptoms: timing chain rattle that worsens when hot, increased bearing noise, rough idle.

4. What causes premature TDV8 oil pump failure?

Contaminated oil sits high on the list. Metal particles from bearing wear or timing chain degradation recirculate through pump, scoring rotor surfaces. Extended oil change intervals beyond 10,000 miles/12 months accelerate wear. Blocked pick-up strainers cause cavitation damage.

5. Is this compatible with Discovery 4 TDV8?

Yes, the Land Rover Discovery 4 Oil Pump uses same LR089143 assembly as Range Rover variants. Discovery 4 L319 (2009–2016) with 3.6 TDV8 shares 368DT platform. Verify via engine code before ordering.

6. Do you offer bulk discounts for engine rebuilders?

Yes, we work closely with professional engine reconstruction shops. Please contact our sales team for tiered pricing on orders over 10 units.

Compatible Vehicle Model

This pump is specifically designed for the Land Rover V8 diesel family. It is essential for workshop owners to verify the engine code before installation, as the LR089143 Oil Pump is tailored for: