URO 99757255500 HVAC Heater Hose
OE Quality 60-Day Returns
URO

URO 99757255500 HVAC Heater Hose

Brand URO 99757255500
Material Epdm
Wall Thickness 4
Length 200
Color Black
End 1 Inside Diameter 18
End 2 Inside Diameter 18
End 3 Inside Diameter 18
Maximum Bend Angle 90
Working Pressure 100
Burst Pressure 100
Branch Quantity 0
Molded Yes
Number Of Quick Connect Fittings 0
Fits Porsche · 48 vehicles

OE-shaped molded hose. Matches the original form for easier installation and a clean appearance.

EPDM construction. Resists heat, ozone, and electrochemical breakdown from the inside out.

Temperature rated. Handles -40°F to 275°F for dependable performance across extremes.

Cross-references Genuine 99757255500, 117 43107 001 and 996 572 585 00 for the same application. See all 6.

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Not what you need? See all HVAC Heater Hose options

OE-Style Heater Hose for Porsche Cooling

This URO HVAC heater hose is built for Porsche applications that require a molded OE-style replacement with accurate routing and dependable heat resistance. It is engineered for the heater core to return pipe connection on select Porsche 911, Boxster, and Cayman models.

  • Guaranteed fitment for listed Porsche applications
  • Molded to OE heater hose shape for proper appearance and easier installation
  • EPDM construction resists engine heat and ozone exposure
  • ECD-resistant rubber helps reduce electrolysis-related rubber breakdown
  • Temperature rating from -40°F to 275°F (-40°C to 135°C)
  • Black finish with molded 90-degree bend profile

Fitment and Application Details

Compatible With Porsche 911, 1999-2013, heater core to return pipe; Porsche Boxster, 1997-2012, heater core to return pipe; and Porsche Cayman, 2006-2012, heater core to return pipe. Part number 99757255500 is also referenced in OE and aftermarket listings for these applications, including 997 572 555 00 and 996 572 585 00.

Built from EPDM with a 4 mm wall thickness, this molded heater hose is shaped for the factory-style path between the heater core and return pipe. The 18 mm inside diameter at each end supports the specified connection points, while the 90-degree maximum bend helps maintain proper hose routing in the engine bay. For Porsche 911, Boxster, and Cayman models, this hose is selected when the original hose has hardened, cracked, or lost its shape.

Common Problems This Hose Can Address

  • Coolant leakage from a cracked or aged heater hose
  • Restricted heater flow caused by hose collapse or internal deterioration
  • Poor fitment from a straight universal hose in a molded application
  • Heat-related rubber damage from prolonged engine bay exposure
  • Electrolysis-related hose breakdown in the cooling system

Installation Notes

Verify the heater core to return pipe routing before installation and compare the hose shape to the original part. Because this is a molded hose, correct orientation matters for proper alignment in Porsche 911, Boxster, and Cayman heater circuits. Inspect adjoining pipes, clamps, and sealing surfaces before final assembly.

Quality Assurance

URO lists this heater hose with a 24-month unlimited mileage warranty. The EPDM material is specified for resistance to engine heat, ozone, and electrochemical degradation, supporting long-term service in the cooling system.

Related reading

This part fits 48 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2013Porsche911TurboN/AHeater Core to Return Pipe
2013Porsche911Turbo SN/AHeater Core to Return Pipe
2012Porsche911CarreraN/AHeater Core to Return Pipe
2012Porsche911Carrera 4N/AHeater Core to Return Pipe
2012Porsche911Carrera 4 GTSN/AHeater Core to Return Pipe
2012Porsche911Carrera 4SN/AHeater Core to Return Pipe
2012Porsche911Carrera GTSN/AHeater Core to Return Pipe
2012Porsche911Carrera SN/AHeater Core to Return Pipe
2012Porsche911Targa 4N/AHeater Core to Return Pipe
2012Porsche911Targa 4SN/AHeater Core to Return Pipe
2012Porsche911TurboN/AHeater Core to Return Pipe
2012Porsche911Turbo SN/AHeater Core to Return Pipe
2012PorscheBoxster—N/AHeater Core to Return Pipe
2012PorscheCayman—N/AHeater Core to Return Pipe
2011Porsche911—N/AHeater Core to Return Pipe
2011PorscheBoxster—N/AHeater Core to Return Pipe
2011PorscheCayman—N/AHeater Core to Return Pipe
2010Porsche911—N/AHeater Core to Return Pipe
2010PorscheBoxster—N/AHeater Core to Return Pipe
2010PorscheCayman—N/AHeater Core to Return Pipe
2009Porsche911—N/AHeater Core to Return Pipe
2009PorscheBoxster—N/AHeater Core to Return Pipe
2009PorscheCayman—N/AHeater Core to Return Pipe
2008Porsche911—N/AHeater Core to Return Pipe
2008PorscheBoxster—N/AHeater Core to Return Pipe
2008PorscheCayman—N/AHeater Core to Return Pipe
2007Porsche911—N/AHeater Core to Return Pipe
2007PorscheBoxster—N/AHeater Core to Return Pipe
2007PorscheCayman—N/AHeater Core to Return Pipe
2006Porsche911—N/AHeater Core to Return Pipe
2006PorscheBoxster—N/AHeater Core to Return Pipe
2006PorscheCayman—N/AHeater Core to Return Pipe
2005Porsche911—N/AHeater Core to Return Pipe
2005PorscheBoxster—N/AHeater Core to Return Pipe
2004Porsche911—N/AHeater Core to Return Pipe
2004PorscheBoxster—N/AHeater Core to Return Pipe
2003Porsche911—N/AHeater Core to Return Pipe
2003PorscheBoxster—N/AHeater Core to Return Pipe
2002Porsche911—N/AHeater Core to Return Pipe
2002PorscheBoxster—N/AHeater Core to Return Pipe
2001Porsche911—N/AHeater Core to Return Pipe
2001PorscheBoxster—N/AHeater Core to Return Pipe
2000Porsche911—N/AHeater Core to Return Pipe
2000PorscheBoxster—N/AHeater Core to Return Pipe
1999Porsche911—N/AHeater Core to Return Pipe
1999PorscheBoxster—N/AHeater Core to Return Pipe
1998PorscheBoxster—N/AHeater Core to Return Pipe
1997PorscheBoxster—N/AHeater Core to Return Pipe
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Genuine — 99757255500117 43107 001996 572 585 00997 572 555 0099657258504URO-013594