OEM Number: 058133753B. For GolfFor Mk4 1.8 / 1.8T: 1998–2006. For JettaFor Mk4 1.8 / 1.8T: 1999–2005. 1 Engine Breather Hose With Jet Pump Assembly. Integrated Jet Pump Design – Includes the vacuum jet pump/nozzle assembly to help maintain proper crankcase ventilation and vacuum system operation.
