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This Buy It Now listing is for a complete replacement Boost recirculation valve for the K04 Turbocharger used on the 2.0l Petrol Vauxhall engines (Z20LET, Z20LEH, Z20LER, Z20LEL, Y20LET, Z16LET).

Most common part to cause boost issues and also unusual turbo noises. This complete replacement is made from billet alloy and uses the piston type design to increase performance and reliability. All sealing faces are machined and fitted with heavy duty high temperature O rings for the perfect seal.

Unit comes with a range of differing spring ratings for standard through to remapped applications where boost is increased.

This is an aftermarket recirculating valve found on the compressor housing on the below Turbochargers:

5304-970-0024 / 5304-980-0024 / 5304-988-0024 / 5304-998-0024
5304-970-0048 / 5304-980-0048 / 5304-988-0048 / 5304-998-0048
5304-970-0049 / 5304-980-0049 / 5304-988-0049 / 5304-998-0049
5303-970-0110 / 5303-980-0110 / 5303-988-0110 / 5303-998-0110
90423508
55559850
55559848
55355617

VEHICLES USING THESE UNITS INCLUDE:

Vauxhall Astra G & H 1998 - onwards
Vauxhall Zafira A & B 1998 - onwards
Corsa D 2007 - onwards

CONTENTS INCLUDE:

1 x Recirculation valve (Alloy)
1 x Green Spring (Standard applications - 18psi)
1 x Yellow Spring (18-22psi)
1 x Blue Spring (22-25psi)
1 x Red (25+ Psi)

NOTE:  Ratings are to be used as a guide only.  It is advised to start with the pre fitted green spring and if suffering from boost leaks to move to the next level.  Stronger springs will result in slower valve opening times potentially causing compressor stall.

In stock in our UK workshop ready for same day dispatch (if ordered before 3pm).

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You are purchasing this product from Turbo Rebuild Ltd.

Turbo Rebuild is a UK family run business based in Lancashire. We are professional Turbocharger Reconditioners and work from our fully equipped, purpose built workshop which houses all required machinery for the testing, repair and production of Turbochargers and Turbo parts.
We have been trading in the Turbocharger market since 1998 and are fully VAT registered. We pride ourselves on the quality of the products we sell and the service we offer as our feedback shows.