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Radiators, Hoses, Thermostats, Water Pumps and everything else in the coolant system
Coolant Expansion Tank Cap (NCV3)

Coolant Expansion Tank Cap (NCV3)
OEM Mercedes-Benz

Coolant expansion tank cap for the NCV3 Sprinter, including the V6 3.0L and the I4 2.1L models.…

Coolant Flange for Cylinder Head (A3) (B4)

Coolant Flange for Cylinder Head (A3) (B4)

Coolant flange that goes on the left side of an A3/B4 engine, pointing toward the front bumper. Includes the O-Ring.…

Coolant Flange for Cylinder Head (A4 Auto)

Coolant Flange for Cylinder Head (A4 Auto)

Coolant flange for the rear (or transmission side) of ALH engines that are not equipped coolant glow plugs, including all…

Coolant Flange for Cylinder Head (A5 BRM)

Coolant Flange for Cylinder Head (A5 BRM)

Coolant flange for the transmission side of the cylinder head on the BRM engines used in the 2005.5-2006 MkV Jetta…

Coolant Flange for Cylinder Head (B5.5)

Coolant Flange for Cylinder Head (B5.5)
IDParts

Coolant flange for the cylinder head on the B5.5 Passat TDI, model year 2004 & 2005 with engine code BHW.…

Coolant Flange for Cylinder Head [OEM] (B5.5)

Coolant Flange for Cylinder Head [OEM] (B5.5)
OEM VW

Coolant flange for the cylinder head on the B5.5 Passat TDI, model year 2004 & 2005 with engine code BHW.…

Coolant Flange for Cylinder Head O-Ring (A3)(B4)

Coolant Flange for Cylinder Head O-Ring (A3)(B4)
CRP

For all A3 Jetta TDI and B4 Passat TDI - o-ring seal for the coolant flanges on the cylinder head,…

Coolant Flange for Cylinder Head O-Ring (A4)

Coolant Flange for Cylinder Head O-Ring (A4)
Victor Reinz

For Volkswagen Jetta, Golf and New Beetle TDI on the A4 chassis with the ALH or BEW. O-Ring Seal between 3-way…

Coolant Flange to EGR Cooler Hose (A4 ALH Auto)

Coolant Flange to EGR Cooler Hose (A4 ALH Auto)
OEM VW

Heater coolant hose that connects the cylinder head coolant flange to the EGR cooler on Mk4 Jetta, Jetta Wagon, Golf…

Coolant Glow Plug Flange O-Ring (A4)

Coolant Glow Plug Flange O-Ring (A4)
CRP

O-ring for the A4 chassis VW Jetta, Golf and New Beetle TDI with manual transmissions between the metal coolant flange…

Coolant Hose Coupling (A4)

Coolant Hose Coupling (A4)

This quick-coupler attaches lines that go from the cooling flange on the back of the cylinder head to the expansion…

Coolant Hose Coupling for Heater Core (New Beetle ALH)

Coolant Hose Coupling for Heater Core (New Beetle ALH)
OEM VW

Quick-connect style fitting for the heater core connection on the Mk4 New Beetle TDI with engine code ALH.…

Coolant Hose Coupling for Heater Core Angled (A4)

Coolant Hose Coupling for Heater Core Angled (A4)

For 1999-2005 A4 chassis Volkswagens, new coupler to connect the heater core to the cooling system.These couplers come…

Coolant Hose Coupling for Heater Core Straight (A4)

Coolant Hose Coupling for Heater Core Straight (A4)
IDParts

This straight coolant hose coupling is great for doing an EGR cooler delete on a TDI. Replaces 45-degree angled hose…

Coolant Hose Coupling for Lower Radiator (A4)

Coolant Hose Coupling for Lower Radiator (A4)
Febi

Coupling for the coolant hose; suitable for A4 chassis.…

Coolant Hose Coupling for Upper Radiator Hose (A4 ALH Auto)

Coolant Hose Coupling for Upper Radiator Hose (A4 ALH Auto)

Coupling for upper radiator hose. This coupling contains an opening for the coolant temp. sensor. Please check yours before ordering…

Coolant Hose Outlet Flange (A4 BEW Auto)

Coolant Hose Outlet Flange (A4 BEW Auto)
OEM VW

Coolant hose outlet flange for the MkIV BEW with the automatic transmission. This flange attaches to the back of the…

Coolant Hose to Cylinder Head (A3 B4)

Coolant Hose to Cylinder Head (A3 B4)
Rein Automotive

This coolant hose under the injection pump on the A3 and B4, commonly fails when the injection pump leaks fuel.…

Coolant Hose to Cylinder Head (A4 BEW)

Coolant Hose to Cylinder Head (A4 BEW)
OEM VW

This coolant hose lives under the tandem pump and goes from the EGR valve to the metal coolant lines on…

Coolant Hose to Cylinder Head [OEM] (A3 B4)

Coolant Hose to Cylinder Head [OEM] (A3 B4)
OEM VW

OEM VW part. This coolant hose under the injection pump on the A3 and B4, commonly fails when the injection…

Coolant Hose to Heater Core (A3 B4)

Coolant Hose to Heater Core (A3 B4)
Rein Automotive

This coolant hose lives under the injection pump on an A3 and B4 and runs between the water pump to…

Coolant Overflow Hose Barb Fitting

Coolant Overflow Hose Barb Fitting

3/8 barb fitting…

Coolant Pipe Cap (BHW)

Coolant Pipe Cap (BHW)
OEM VW

Rubber cap for the metal coolant bypass pipe on the BHW engine.…

Coolant Pipe Nut

Coolant Pipe Nut
OEM VW

M6 nut used to secure the hard coolant pipe on A3/B4 models.…

Coolant Reservoir Bottom Hose (Liberty CRD)

Coolant Reservoir Bottom Hose (Liberty CRD)
OEM Mopar

Long coolant hose that connects to the bottom of the coolant reservoir, or coolant overflow/expansion bottle.…

Coolant Reservoir Cap Seal

Coolant Reservoir Cap Seal
OEM VW

O-Ring seal for the coolant reservoir cap on A3, A4, A5, and B4 chassis.…

Coolant Temperature Sensor (T1N)

Coolant Temperature Sensor (T1N)

Coolant temperature sensor for the T1N first-generation Sprinter with either OM612 or OM647 engine codes.…

Coolant Temperature Sensor A3 / B4 (Blue)

Coolant Temperature Sensor A3 / B4 (Blue)
Rein Automotive

Temperature sensor for A3/B4 cars with 1Z or AHU engine. Shipped with seal and clip. This sensor…

Coolant Temperature Sensor Black-Yellow (A3)(B4)

Coolant Temperature Sensor Black-Yellow (A3)(B4)

Coolant Temperature Sensor for B4 Passat TDI with the 1Z engine code. Also replaces sensor with PN 6U0 919 501B…

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