Range Rover Sport Air Suspension Compressor Part Number: How to Find the Right One

If your Range Rover Sport is sitting low or you hear a loud buzzing from the front passenger side under the hood, the air suspension compressor may be failing. Replacing it requires the exact part number for your specific model year and engine. Using the wrong compressor can lead to fitment issues, incorrect pressure, or system faults. This guide walks you through finding the correct part number, understanding compatibility, and making an informed purchase.

Understanding the Air Suspension Compressor in a Range Rover Sport

The Range Rover Sport uses an air suspension system that relies on a compressor to pressurize air bags at each wheel. This compressor, often mounted in the engine bay or under the vehicle, includes a motor, piston, and often a dryer unit. Over time, the compressor can wear out due to moisture contamination, electrical failure, or mechanical fatigue. When it fails, the suspension may drop, trigger warning lights, or refuse to raise.

The compressor itself is a single component, but its part number varies by model year, engine type, and whether the vehicle has standard air suspension or the more advanced Dynamic Response system. Land Rover uses several OEM part numbers, and aftermarket alternatives are available. Knowing your specific part number ensures compatibility and avoids returns or installation headaches.

Why the Correct Part Number Matters

Installing the wrong compressor can cause several problems:

• Mounting differences: Brackets and bolt patterns may differ between model years.
• Electrical connector mismatch: Early and late models use different pin layouts.
• Air line fittings: Some compressors have quick-connect fittings; others require push-to-connect.
• Performance output: Compressors vary in pressure rating (around 150-200 psi) and duty cycle. A weaker unit may not maintain ride height.
• Software compatibility: The vehicle’s ECU may not communicate properly with a non-OEM or different hardware version.

Using the correct part number eliminates guesswork. It also helps when ordering from a dealer, parts store, or specialist shop.

Finding Your Range Rover Sport's Compressor Part Number

There are several ways to locate the correct part number for your vehicle:

1. Check the Old Compressor

If the compressor is still accessible, look for a white or silver sticker on the compressor body. The part number is typically a 6- to 8-digit alphanumeric code, such as LR010710, LR056482, or LR079569. It may also be stamped into the housing. Clean the area if dirty and take a photo for reference.

2. Use Your VIN (Vehicle Identification Number)

Your VIN is the most accurate way to identify the factory-installed compressor. You can:

• Enter the VIN on a Land Rover parts website or at a dealership.
• Use a VIN decoder online (many are free).
• Ask a dealership parts department to look up the part number using your VIN.

The VIN reveals the exact build date, engine, and options like air suspension type.

3. Identify by Model Year and Engine

Range Rover Sport compressor part numbers changed significantly over the years. Here is a general breakdown:

2006–2009 (L320, 4.2L Supercharged and 4.4L V8)

• Common OEM numbers: LR010710 (with dryer) or LR010709 (without dryer).
• These compressors often fail due to cracked internals or moisture damage. Updated units may have a different part number.

2010–2013 (L320, 3.0L Diesel, 5.0L V8)

• Part numbers include LR056482 (with dryer) and LR056481 (without).
• The diesel and gasoline compressors are sometimes different due to engine bay layout.

2014–2018 (L494, 3.0L V6, 5.0L V8, Diesel)

• Common numbers: LR079569 (with dryer), LR079568 (without).
• The L494 models use a more robust Hitachi compressor, but failures still occur.

2019–Present (L494 facelift)

• Part numbers may include LR126098 or LR126099. Confirm with VIN.

Note: Aftermarket compressors often cross-reference these OEM numbers. Brands like Arnott, Dunlop, and Hella offer replacements that match specific OEM numbers.

How to Verify Compatibility

Once you have a potential part number, cross-check it with these factors:

• Model year range: Most compressors fit a series of years (e.g., 2014-2018). Verify your vehicle falls within that range.
• Engine type: Some compressors are specific to diesel or gasoline engines due to mounting or electrical differences.
• Air suspension type: Standard air suspension vs. Dynamic Response may use different compressors. Dynamic Response systems have an additional pump for the stabilizer bars.
• Dryer included? Some compressors come with a new desiccant dryer, others require transferring the old one. It's recommended to replace the dryer at the same time.

Always double-check with a reliable parts supplier or dealer before ordering.

Signs of a Failing Air Suspension Compressor

Recognize these symptoms early to avoid complete failure:

• Vehicle sits low after a few hours: The compressor may be leaking internally or unable to maintain pressure.
• Loud buzzing or grinding noise: Worn bearings or a failing motor.
• "Suspension Fault" or "Normal Ride Height" warning on dash: Compressor overheated or failed.
• Compressor runs continuously: The system can't reach pressure, possibly due to a leak or compressor weakness.
• Moisture or oil in air lines: Indicates dryer failure or internal damage to the compressor.

If you notice any of these, inspect the compressor and its part number before ordering a replacement.

Replacing the Air Suspension Compressor: Key Tips

While this article does not provide a full DIY guide, here are practical pointers for replacement:

• Disconnect the battery: The air suspension system can store energy. Disconnect the negative terminal for at least 30 minutes before working.
• Relieve system pressure: Use diagnostic software (e.g., IIDTool or Autel) to deflate the suspension manually. Never loosen lines under pressure.
• Remove the compressor: Typically mounted behind the front bumper (passenger side) or under the vehicle near the right frame rail. Access may require removing underbody shields or a wheel.
• Transfer the air lines carefully: Push-to-connect fittings can be fragile; use a proper release tool to avoid breaking the nipple.
• Replace the relay and fuse: Often, a failed compressor can blow its fuse. Check and replace as needed.
• Reset the system: After installation, use a scan tool to clear fault codes and recalibrate ride height sensors.

If you are not comfortable with electrical work or suspension systems, consider professional installation. An incorrect DIY repair can lead to more costly damage.

Final Recommendation

For a Range Rover Sport air suspension compressor, always start with your VIN or the old part number. Do not rely solely on model year; emissions and production changes can alter the compressor specification. If you are unsure, buy from a reputable supplier who offers guaranteed fitment and return support.

For 2014-2018 L494 models, LR079569 is the most common OEM part number. For earlier L320 (2006-2013), LR010710 or LR056482 are typical. Aftermarket units from Arnott (e.g., P-2424) or Hella are proven alternatives at lower cost, but ensure they match the specific OEM number.

Replacing the compressor with the exact part number extends the life of your air suspension system and restores proper ride height. Take the time to confirm compatibility, and you’ll avoid headaches down the road.