Skip to content
Shop by vehicle Shopping for:
Shop parts
Radiator Hose – Passenger Side (Center Radiator Inlet)
Genuine Porsche parts diagram
Genuine Porsche parts diagram
Genuine Porsche parts diagram
Genuine Porsche parts diagram

Radiator Hose – Passenger Side (Center Radiator Inlet)

GENUINE PORSCHE
Availability:
Out of stock
SKU 99710663804
Sold out
$26.60 - $26.60
$26.60
$26.60 - $26.60
$26.60
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

Rewards
EARN REWARD POINTS
Purchasing this product will earn you 130 points to redeem on future purchases. Check your points.

The Genuine Porsche Radiator Coolant Hose part number 99710663804 / 997 106 638 04 is an essential component for maintaining the cooling system of your Porsche vehicle. This high-quality hose is manufactured to meet the exact specifications of your Porsche model, ensuring a perfect fit and optimal performance.

Crafted from durable materials, this radiator coolant hose offers exceptional strength and wear resistance, making it a reliable and long-lasting solution for your Porsche. Its construction also allows it to withstand high temperatures and pressure, ensuring that your engine stays cool and functions at its best.

Thanks to its precision design, installation of this radiator coolant hose is a breeze, saving you time and hassle. Its direct replacement design eliminates the need for any modifications or adjustments, making it a hassle-free option for all Porsche enthusiasts.

With the Genuine Porsche Radiator Coolant Hose part number 99710663804 / 997 106 638 04, you can rest assured that your Porsche’s cooling system is in good hands. Don’t let a faulty radiator hose compromise your engine’s performance and safety. Upgrade to a Genuine Porsche Radiator Coolant Hose today and experience the difference in your ride.

Brand Part #
Brand Part #
Porsche 997 106 638 04 / 99710663804
  • Replaces: 997-106-638-03
  • Position: Right
  • Part can be found as reference #6 in illustration.
  • Fitment Notes: Auxiliary. Center Radiator.

This part also goes by the following cross reference.

Cross Reference Part Number: 99710663803, 997-106-638-03

Fits These Vehicles 42 applications
Porsche
Make Model Engine Years
Porsche 911Carrera 3.6H6 2005–2008
Porsche 911Carrera 4 3.6H6 2006–2008
Porsche 911Carrera S 3.8H6 2005–2008
Porsche 911Carrera 4S 3.8H6 2006–2008
Porsche 911Targa 4 3.6H6 2007–2008
Porsche 911Targa 4S 3.8H6 2007–2008
Porsche 911Carrera, Carrera 4, Carrera 4 GTS, Carrera 4S, Carrera GTS, Carrera S, GT3, GT3 RS, Speedster, Targa 4, Targa 4S 3.6H6 2009–2012
Porsche 911Carrera 4 GTS 3.6H6 2005–2008
Porsche 911Carrera GTS 3.6H6 2005–2008
Porsche 911GT3 3.6H6 2006–2006
Porsche 911GT3 RS 3.6H6 2005–2006
Porsche 911Speedster 3.6H6 2005–2008
Porsche 911Targa 4 3.6H6 2005–2006
Porsche 911Targa 4S 3.6H6 2005–2006
Porsche 911Carrera, Carrera 4, Carrera 4 GTS, Carrera 4S, Carrera GTS, Carrera S, GT3, GT3 RS, Speedster, Targa 4, Targa 4S 3.8H6 2009–2012
Porsche 911Carrera 4 GTS 3.8H6 2005–2008
Porsche 911Carrera GTS 3.8H6 2005–2008
Porsche 911GT3 3.8H6 2006–2006
Porsche 911GT3 RS 3.8H6 2005–2006
Porsche 911Speedster 3.8H6 2005–2008
Porsche 911Targa 4 3.8H6 2005–2006
Porsche 911Targa 4S 3.8H6 2005–2006
Porsche BoxsterBase 2.7H6 2005–2008
Porsche BoxsterS 3.2H6 2005–2006
Porsche BoxsterS 3.4H6 2007–2008
Porsche BoxsterLimited Edition 2.7H6 2008–2008
Porsche BoxsterS Limited Edition 3.4H6 2008–2008
Porsche BoxsterRS 60 Spyder 3.4H6 2008–2008
Porsche BoxsterS Porsche Design 2 3.4H6 2008–2008
Porsche BoxsterLimited Edition, RS 60 Spyder, S Limited Edition 2.7H6 2005–2007
Porsche BoxsterBase, S, S Black Edition, S Porsche Design 2, Spyder 2.9H6 2009–2012
Porsche BoxsterBase, S 3.4H6 2009–2012
Porsche BoxsterLimited Edition, RS 60 Spyder, S Limited Edition, S Porsche Design 2 3.4H6 2007–2007
Porsche BoxsterLimited Edition, RS 60 Spyder, S Limited Edition, S Porsche Design 2 3.4H6 2009–2012
Porsche BoxsterS Black Edition, Spyder 3.4H6 2007–2012
Porsche CaymanBase 2.7H6 2007–2008
Porsche CaymanS 3.4H6 2006–2008
Porsche CaymanBase, R, S 2.9H6 2009–2012
Porsche CaymanBase 3.4H6 2006–2006
Porsche CaymanBase 3.4H6 2009–2012
Porsche CaymanR 3.4H6 2006–2012
Porsche CaymanS 3.4H6 2009–2012

Fitment data last updated: 2026-10-03

Fits 42 vehicle applications Check vehicle fitment before ordering View fitment

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.