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We list as much information as possible in our adverts to help you determine if this part will fit your vehicle.

However, if in doubt please Contact Us with your registration / chassis number.

Please ensure that this product will fit your vehicle before placing the order.

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We are a company committed to high quality and service. We believe that maintaining your vehicle should not require great expense. We were the first in the UK to offer bespoke Range Rover air suspension solutions and we are often copied but strive never to be beaten on quality or service.

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» Range Rover P38 1995-2002 » Range Rover P38, Discovery 1, Defender V8 4.0 and 4.6 GEMS AIR MASS/FLOW METER

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  Range Rover P38, Discovery 1, Defender V8 4.0 and 4.6 GEMS AIR MASS/FLOW METER
Price :
The prices are in GBP Great British Pounds (£)

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Description :

Fits the following models:
Range Rover P38 4.0/4.6 V8 Petrol up to 1999 (GEMS)
up to chassis number XA410482
Discovery 1   3.9/4.0 V8 Petrol 1989 - 1998
Defender 4.0 V8 Petrol 1987-2006
If you are unsure you can check the following:
  • if your engine has a square inlet manifold with 4.0 or 4.6 stamped on it this will fit your vehicle  (GEMS)

If you have the later type engine with the 'banana' shaped inlet manifold then this will NOT  fit. (THOR)


If you are having problems with your airflow meter we have for sale a OEM specification meter which is a direct replacement for your own.

Land Rover computers measure, amongst other things the airflow into the engine to determine the correct fuel to air ratio and ignition timing, if this is incorrect then you have a loss of power, incorrect emissions and possibly a misfire and hesitation at high engine loads.

The airflow meter is especially important in Land Rovers that have been converted to LPG as this type of fuel depends on the correct ignition firing and air/fuel ratio.

Signs of a faulty Airflow meter are ;
  • rough running at idle,
  • hesitation and possible misfiring at load or high revs,
  • excessive fuel consumption

p38 airflow meter p38 range rover air mass meter

Pic 1.1

Airflow meter side view.

Pic 1.2

Airflow meter back view.


Please ensure compatibility when ordering, if you are unsure please ask.

Changing these meters is simply a matter of loosening the clips and re-fitting, the change over can be done in 5-10 minutes with ease.

Your chassis number can found on the passenger side of the windscreen.


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