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Axle Shaft Assembly
Genuine Porsche parts diagram
Genuine Porsche parts diagram
Genuine Porsche parts diagram
Genuine Porsche parts diagram

Axle Shaft Assembly

GENUINE PORSCHE
Availability:
Out of stock
SKU 99734903803
Sold out
$830.09 - $830.09
$830.09
$830.09 - $830.09
$830.09
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.

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The Genuine Porsche CV Axle Assembly part number 99734903803 is the ultimate solution for your Porsche’s drivetrain needs. Designed with precision and craftsmanship, this axle assembly delivers superior performance and reliability for your vehicle.

Crafted with the highest-quality materials and engineered to exacting standards, the Genuine Porsche CV Axle Assembly boasts exceptional durability that truly stands the test of time. It is manufactured to meet or exceed the original equipment specifications, ensuring a perfect fit and optimal performance.

With its advanced design, the Genuine Porsche CV Axle Assembly features a high-strength, heat-treated steel construction that can withstand the rigors of daily use. The constant velocity joints are engineered to operate smoothly, delivering seamless power transfer from your car’s transmission to the wheels.

Designed specifically for Porsche models, the Genuine Porsche CV Axle Assembly is easy to install and requires no modifications. It is a direct replacement for your old or worn-out axle assembly, providing reliable performance that you can count on mile after mile.

Whether you’re upgrading your car or replacing a faulty component, the Genuine Porsche CV Axle Assembly is the perfect choice. With its exceptional quality, durability and high performance, this product is sure to deliver outstanding results every time.

  • Replaces: 997-349-038-00, 997-349-038-01, 997-349-038-02
  • Position: Left, Right
  • Part can be found as reference #1 in illustration.
  • Fitment Notes: With awd. 911, 911 Turbo.

This part also goes by the following cross reference.

Cross Reference Part Number: 99734903800, 997-349-038-00, 99734903801, 997-349-038-01, 99734903802, 997-349-038-02

Fits These Vehicles 38 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 911Turbo 3.6H6 2007–2009
Porsche 911GT2 3.6H6 2008–2009
Porsche 911Carrera, Carrera 4, Carrera 4 GTS, Carrera 4S, Carrera GTS, Carrera S, Targa 4, Targa 4S, Turbo, Turbo S 3.4H6 2012–2012
Porsche 911Carrera, Carrera 4, Carrera 4 GTS, Carrera 4S, Carrera GTS, Carrera S, GT2 RS, GT3 RS, GT3 RS 4.0, Speedster, Targa 4, Targa 4S, Turbo S 3.6H6 2009–2012
Porsche 911GT2, GT3, Turbo 3.6H6 2010–2012
Porsche 911Carrera 4 GTS 3.6H6 2006–2008
Porsche 911Carrera GTS 3.6H6 2006–2008
Porsche 911GT2 3.6H6 2006–2007
Porsche 911GT2 RS 3.6H6 2006–2008
Porsche 911GT3 3.6H6 2006–2006
Porsche 911GT3 RS 3.6H6 2006–2006
Porsche 911GT3 RS 4.0 3.6H6 2006–2008
Porsche 911Speedster 3.6H6 2006–2008
Porsche 911Targa 4 3.6H6 2006–2006
Porsche 911Targa 4S 3.6H6 2006–2006
Porsche 911Turbo 3.6H6 2006–2006
Porsche 911Turbo S 3.6H6 2006–2008
Porsche 911Carrera, Carrera 4, Carrera 4 GTS, Carrera 4S, Carrera GTS, Carrera S, GT2 RS, GT3 RS, GT3 RS 4.0, Speedster, Targa 4, Targa 4S, Turbo S 3.8H6 2009–2013
Porsche 911GT2, GT3, Turbo 3.8H6 2010–2013
Porsche 911Carrera 4 GTS 3.8H6 2006–2008
Porsche 911Carrera GTS 3.8H6 2006–2008
Porsche 911GT2 3.8H6 2006–2007
Porsche 911GT2 RS 3.8H6 2006–2008
Porsche 911GT3 3.8H6 2006–2006
Porsche 911GT3 RS 3.8H6 2006–2006
Porsche 911GT3 RS 4.0 3.8H6 2006–2008
Porsche 911Speedster 3.8H6 2006–2008
Porsche 911Targa 4 3.8H6 2006–2006
Porsche 911Targa 4S 3.8H6 2006–2006
Porsche 911Turbo 3.8H6 2006–2006
Porsche 911Turbo S 3.8H6 2006–2008
Porsche 911Carrera, Carrera 4, Carrera 4S, Carrera GTS, Carrera S, GT2 RS, GT3, GT3 RS, GT3 RS 4.0, Speedster, Targa 4, Targa 4S, Turbo, Turbo S 4.0H6 2011–2011

Fitment data last updated: 2026-10-03

Fits 38 vehicle applications Check vehicle fitment before ordering View fitment

About this Axle & CV Shaft

The GENUINE PORSCHE 99734903803 axle shaft delivers power from the transmission or differential to the wheel. Constant-velocity (CV) joints at each end let it keep turning smoothly while the suspension moves and the wheels steer.

Frequently asked questions

What does an axle or CV shaft do?

It transmits torque to the wheel while its CV joints allow the angle and length to change as the suspension travels and, on front axles, as the wheels turn.

What are the signs of a failing axle shaft?

A clicking noise when turning, especially under acceleration, a vibration that increases with speed, a clunk when taking off, or grease thrown around the inside of the wheel from a torn CV boot.

Can I just replace the CV boot instead?

If a torn boot is caught early, before dirt and water have damaged the joint, a boot kit can be enough. Once the joint clicks or has lost its grease, replacing the complete axle is usually the better repair.

What should I replace along with the axle?

Use a new axle nut or bolt if the manufacturer specifies a single-use fastener, and a new seal at the transmission if it leaks. Tighten the axle nut to the specified torque with the car on the ground.

How do I make sure this axle shaft fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

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