Billet MK4 VR6 12V Upper Radiator Hose 4Y Pipe

GruvenParts.com Billet MKIV Upper Radiator Hose 4Y and Billet Auxiliary Radiator Delete Kit

GruvenParts.com is proud to release the BILLET MKIV VR6 12V and 24V Upper Radiator Hose 4Y Pipe to replace the junk plastic 4Y pipe found in OEM upper radiator hose P/N 1J0-122-101AP (1J0122101AP), 1J0-122-101CG (1J0122101CG) and 1J0-121-087J (1J0121087J). 

This part can also be spec'd without the lower auxiliary radiator feed nipple for those wanting to delete the often problematic auxiliary radiator and all of its associated plumbing!  The aux rad delete option includes a straight billet aluminum auxiliary radiator return hose delete pipe which replaces the plastic tee in lower radiator hose P/N 1J0-122-051R(1J0122051R).  This option also deletes the short adapter hose located under the 4Y which connects to the aux radiator return, P/N 1J0-122-101AR (1J0122101AR).  Please note the auxiliary radiator delete option is intended for manual transmission vehicles only. 

The flimsy plastic OEM upper radiator hose 4Y junction located in the upper radiator hose quickly dries out and becomes super brittle. If you look at it wrong, it will snap and leave you stranded. Or worse, turn your high dollar VR6 motor into an overheated paperweight.  Likewise, the auxiliary radiator and its associated hoses and fittings clutter up the engine bay and are also prone to leaks which can cause catastrophic failure to the engine due to overheating. 

Our billet upper radiator hose 4Y and the auxiliary radiator delete pipes are made on one of our state of the art CNC machining centers from aircraft grade 6061-T651 aluminum. The 4Y is professionally TIG welded and both parts are leak tested. You could drive your car over these, but we'd recommend doing that to the OEM plastic versions and installing ours instead !

The GruvenParts billet upper radiator hose 4Y also uses a 1/8 NPT fitting for the radiator reservoir return line, so if you ever wanted to delete your main coolant reservoir , you could simply install a threaded 1/8 NPT plug in its place. You could also install a coolant temp sender in that position for those stand alone applications.

Choose your option from the drop down menu when ordering : Buy the billet upper radiator hose 4Y, or the 4Y with auxiliary radiator delete option.  

This product fits the following vehicles : 
All MKIV Golf/Jetta VR6 12V engines (with upper radiator hose P/N 1J0-122-101AP (1J0122101AP) and 1J0-121-087J (1J0121087J) and lower radiator hose 1J0-122-051R (1J0122051R).

MKIV R32 with upper radiator hose 1J0-122-101CG (1J0122101CG)