Direct OE-quality replacement N428 oil pressure regulation valve to cure low oil pressure warnings, fix internal oil pressure faults, and restore proper variable oil pump operation.
Direct OE-quality replacement N428 oil pressure regulation valve to cure low oil pressure warnings, fix internal oil pressure faults, and restore proper variable oil pump operation.
Includes sealing washer
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Seals the cam chain tensioner to the cylinder head
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Stop stretched out chains from creating noise
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For vehicles with CXBA or CXBB engine code only
This product was last offered at the strikethrough price on
08-07-2026
A key component to keep your system at the right tension
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For vehicles with engine number up to 217 000 only
Keep your chain tight.
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Resolve "diesel-like" rattling noises from the cylinder head and restore proper variable valve timing on your classic 1.8T 20V engine.