Company info

4x4Airseals - Uk supplier, manufacturer and innovating company of Air suspension compressor related products serving customers in the Uk and worldwide longer than any other supplier! designing and providing quality products consistently with the kind of technical support that is in short supply with other sellers vital to get your do-it-yourself repair to satisfactory level and with a end result hopefully with your vehicle back on the road.     !  Please save us as a your prefered seller for these products before leaving the listing you are viewing ! navigating back to us on the ebay system in the future can sometimes be a hit or miss experience as the ebay searching system can change on a hourly/daily basis. 

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 Compressor Fault / Kit Diagnosis

When you decide to repair and remove your Oem Hitachi Air Compressor from your vehicle the 2 black pipes at the rear of the compressor near to the cylinder head area ( 8mm diameter and 10mm diameter black pipes ) are normally removed by pushing in the collets and pulling each pipe out ! but frequently these 2 pipes can be siezed in no matter how much you lubricate or clean the collets, or you may have purchased a used compressor and the previous owner or garage have cut them off without removing them at all. If you can not remove the 2 pipes in the normal way then you can cut them off clean ! flush to the faces of each collet ! these 2 pipes are not pressure pipes as such they are designed only to reduce the noise level of natural incoming air and exhausting outgoing air when the vehicles air suspension is instructed to go down in height level ,however the 2 pipes have to be fitted and sealed at all times in case you go through deep water or resist water intake into the compressor unit ! our repair kit will solve this issue.

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 Compressors Type

Land Rover Discovery 3 4 & Range Rover Sport 2004-20011/12 Oem Hitachi Air Compressor's Only ( picture 2 ) ! Not  suitable for Dunlop Aftermarket Air compressor's which we also have available in our other listings.

   ! We now illustrate at the beginning of our product descriptions for Hitachi and Dunlop/Amk compressors ! the fault code the particular kit you are viewing will help to resolve ! either a C1A20 or C1A13. These 2 codes are the bench mark codes that cause garages/customers to replace or repair their units.

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Diagnostic code Description

C1A2064 ( C1A20 )

Pressure increase to slow when filling gallery  =  Compressor fault  92% of cases  ! Our master repair kit together with fitting instructions recommended.

Other code diagnosis   =   Resorvoir pipe air leak /Gallery Pipe air leak/Intake filter blocked or restricted/Intake pipe blocked or restricted / Air suspension intake silencer blocked or restricted /Air suspension intake silencer blocked or restricted / corner valve stuck open /pressure sensor fault/ Electric motor burnt out / Piston connecting rod broken or jammed.

C1A1364 ( C1A13 )

Pressure does not decrease when venting gallery = Compressor fault 95% of cases ,! Our Exhaust valve seal & dryer filtration repair kit together with fitting instructions recommended.

Other code Diagnosis =  Exhaust valve stuck closed/Exhaust valve does not hold minimum retention pressure/ Gallery pipe blocked or damaged / Pressure sensor fault / Air suspension exhaust silencer blocked or restricted / Air suspension exhaust pipe blocked or restricted / Reservoir valve block pipes incorrectly fitted (unions reversed)

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Vehicle Models affected

   Land Rover Discovery 3 4 & Range Rover Sport 2004-2012 vehicles fitted with Oem Hitachi Air compressor's.

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 Vehicle Compatibility Chart  ! note

     The vehicle compatibility chart at the beginning of most ebay listings is reasonably accurate but can sometimes illustrate your vehicle as not compatible ! Please use our listings info/pictures as the definitive vehicle compressor compatibility information

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Listing Kit / Part ( Picture 1)

C1A20 & C1A13 product  ! 

 This listing will supply you our Oem Hitachi Compressor Intake pipes repair kit ( Picture 1 )all components in the kit are quality items particularly the taps that create the threads in the ports and the new fittings for refitting your vehicle pipes ,video fitting instructions.

We are the original designers of this product/products and are proven products over many years, please message us if you require further information .

We understand their can be cheaper products elsewhere ! but please bare in mind that you only want to hopefully carryout your vehicles repair one time and want you to know we designed  these products many years ago and can vouch for their quality and fitment as a uk manufacturer and more importantly offer experience & support with these units like no other supplier ! knowing the issues back to front inside & out ! Please don't hesitate to contact us ! Trust us you have come to the right place.

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Vehicles affected

Discovery 3/4 2004-2010 --- Range Rover Sport 2004-2010 --- Range Rover L322 2006-2009

Support Uk Manufacturing ,

 Hitachi Air Compressor Serial Numbers

RQG500071 RQG500072 RQG500080 RQG500090 RQG500060 RQG500061 RQG500062 RQG500070  LR044360 LR01530 LR015303 LR023964 LR010376 LR045251 UUB504700 VUB504700RQG000017 RQG000018 RQG000019