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Cardone 66-7380 CV Axle Assembly - Rear Left or Rear Right
| Brand | Cardone 66-7380 |
|---|---|
| Position | Rear Left |
| ABS Ring Included | Yes |
| ABS Ring Tooth Count | 45 |
| Axle Nut Locking Type | Bolt |
| Compressed Length (in) | 24.252 |
| E-Waste | No |
| Input Shaft Bolt Count | 6 |
| Input Shaft Connection Style | Bolt-On |
| Output Shaft Connection Style | Splined |
| Output Shaft Spline Count | 38 |
| Package Contents | Complete Axle, Instruction Sheet |
| Product Condition | New |
| Spindle Nut Included | Yes |
| Product line | CV Axle Assembly |
| Fits | Audi · 42 vehicles |
OE performance. Engineered to meet or exceed original equipment standards.
Boots resist cracking. Neoprene construction with added bellows helps fight stress and ozone damage.
Straightness verified. Each axle shaft is checked for runout to help deliver vibration-free performance.
Cross-references Audi 8E0501203K, Audi 8E0501203KX and Audi 8E0501203S for the same application. See all 3.
Cardone CV Axle Assembly for Audi A4 Quattro and S4
Cardone 66-7380 is a new CV axle assembly engineered for rear left and rear right applications on select Audi A4 Quattro and Audi S4 models. Built for direct replacement service, it addresses common driveline wear points with a design focused on smooth operation, proper sealing, and stable performance.
Key Features
- Fits 2003-2009 Audi A4 Quattro, rear left and rear right
- Fits 2004-2009 Audi S4, rear left and rear right
- Includes ABS ring with 45 teeth for speed sensor signal support
- Supplied with a new spindle nut for installation convenience
- Neoprene boot design uses added bellows where needed to reduce stress and ozone cracking
- Boot clamps are pneumatically crimped for a secure seal
- High-temperature, high-torque grease supports long service life
- Shafts are individually verified for straightness to help reduce vibration
- Input shaft connection style: bolt-on; output shaft connection style: splined
Product Details
Cardone’s CV axle assembly line is built around testing and engineering practices developed to address common original axle failure points. For this application, part number 66-7380 is designed for rear driveline service on Audi A4 Quattro and Audi S4 models, with attention to boot durability, seal integrity, and shaft runout control. The result is a replacement axle assembly intended to restore consistent power transfer and quiet operation in daily driving conditions.
This part cross-references Audi 8E0501203K and 8E0501203S for the same application.
Common Problems This Axle Can Address
- Clicking or snapping noises during turns
- Grease leakage around the axle boot or chassis
- Vibration during acceleration or at speed
- ABS warning light caused by a damaged sensor ring or wiring near the axle
- Grinding or binding from a worn outer or inner CV joint
Installation Notes
Fits 2003-2009 Audi A4 Quattro, rear left and rear right, and 2004-2009 Audi S4, rear left and rear right. For 2003-2005 Audi A4 Quattro, verify the VIN break at 8E3134001 before ordering. Replace the axle retaining nut rather than reusing a prevailing-torque style nut, and torque the new nut to the manufacturer specification with a torque wrench. Do not let the axle hang unsupported during service, and install new transaxle seals when replacing CV drive axle assemblies.
Quality Assurance
Cardone engineers this CV axle assembly using inspection and verification steps that focus on straightness, boot durability, and seal performance. The design reflects lessons learned from common CV axle failure modes, including boot cracking, contamination, and vibration caused by shaft runout.
| Year | Make | Model | Body Type | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2009 | Audi | A4 Quattro | Convertible | — | 3.2L | V6 | Rear Left | CV Axle Assembly |
| 2009 | Audi | A4 Quattro | Convertible | — | 2.0L | L4 | Rear Right | CV Axle Assembly |
| 2009 | Audi | A4 Quattro | Convertible | — | 3.2L | V6 | Rear Right | CV Axle Assembly |
| 2009 | Audi | A4 Quattro | Convertible | — | 2.0L | L4 | Rear Left | CV Axle Assembly |
| 2009 | Audi | S4 | — | Automatic | — | — | Rear Right | CV Axle Assembly |
| 2009 | Audi | S4 | — | Automatic | — | — | Rear Left | CV Axle Assembly |
| 2008 | Audi | A4 Quattro | — | — | 2.0L | L4 | Rear Left | CV Axle Assembly |
| 2008 | Audi | A4 Quattro | — | — | 3.2L | V6 | Rear Right | CV Axle Assembly |
| 2008 | Audi | A4 Quattro | — | — | 3.2L | V6 | Rear Left | CV Axle Assembly |
| 2008 | Audi | A4 Quattro | — | — | 2.0L | L4 | Rear Right | CV Axle Assembly |
| 2008 | Audi | S4 | — | Automatic | — | — | Rear Right | CV Axle Assembly |
| 2008 | Audi | S4 | — | Automatic | — | — | Rear Left | CV Axle Assembly |
| 2007 | Audi | A4 Quattro | — | — | 2.0L | L4 | Rear Left | CV Axle Assembly |
| 2007 | Audi | A4 Quattro | — | — | 3.2L | V6 | Rear Right | CV Axle Assembly |
| 2007 | Audi | A4 Quattro | — | — | 3.2L | V6 | Rear Left | CV Axle Assembly |
| 2007 | Audi | A4 Quattro | — | — | 2.0L | L4 | Rear Right | CV Axle Assembly |
| 2007 | Audi | S4 | — | Automatic | — | — | Rear Right | CV Axle Assembly |
| 2007 | Audi | S4 | — | Automatic | — | — | Rear Left | CV Axle Assembly |
| 2006 | Audi | A4 Quattro | — | — | 3.0L | V6 | Rear Left | CV Axle Assembly |
| 2006 | Audi | A4 Quattro | — | — | 2.0L | L4 | Rear Left | CV Axle Assembly |
| 2006 | Audi | A4 Quattro | — | — | 3.0L | V6 | Rear Right | CV Axle Assembly |
| 2006 | Audi | A4 Quattro | — | — | 2.0L | L4 | Rear Right | CV Axle Assembly |
| 2006 | Audi | S4 | — | Automatic | — | — | Rear Right | CV Axle Assembly |
| 2006 | Audi | S4 | — | Automatic | — | — | Rear Left | CV Axle Assembly |
| 2005 | Audi | A4 Quattro | — | — | 1.8L | L4 | Rear Left | From VIN # 8E3134001; CV Axle Assembly |
| 2005 | Audi | A4 Quattro | — | — | 3.0L | V6 | Rear Left | CV Axle Assembly |
| 2005 | Audi | A4 Quattro | — | — | 2.0L | L4 | Rear Left | CV Axle Assembly |
| 2005 | Audi | A4 Quattro | — | — | 1.8L | L4 | Rear Right | From VIN # 8E3134001; CV Axle Assembly |
| 2005 | Audi | A4 Quattro | — | — | 3.0L | V6 | Rear Right | CV Axle Assembly |
| 2005 | Audi | A4 Quattro | — | — | 2.0L | L4 | Rear Right | CV Axle Assembly |
| 2005 | Audi | S4 | — | Automatic | — | — | Rear Right | CV Axle Assembly |
| 2005 | Audi | S4 | — | Automatic | — | — | Rear Left | CV Axle Assembly |
| 2004 | Audi | A4 Quattro | — | — | 1.8L | L4 | Rear Left | From VIN # 8E3134001; CV Axle Assembly |
| 2004 | Audi | A4 Quattro | — | — | 3.0L | V6 | Rear Left | CV Axle Assembly |
| 2004 | Audi | A4 Quattro | — | — | 1.8L | L4 | Rear Right | From VIN # 8E3134001; CV Axle Assembly |
| 2004 | Audi | A4 Quattro | — | — | 3.0L | V6 | Rear Right | CV Axle Assembly |
| 2004 | Audi | S4 | — | Automatic | — | — | Rear Right | CV Axle Assembly |
| 2004 | Audi | S4 | — | Automatic | — | — | Rear Left | CV Axle Assembly |
| 2003 | Audi | A4 Quattro | — | — | 1.8L | L4 | Rear Left | From VIN # 8E3134001; CV Axle Assembly |
| 2003 | Audi | A4 Quattro | — | — | 3.0L | V6 | Rear Left | CV Axle Assembly |
| 2003 | Audi | A4 Quattro | — | — | 1.8L | L4 | Rear Right | From VIN # 8E3134001; CV Axle Assembly |
| 2003 | Audi | A4 Quattro | — | — | 3.0L | V6 | Rear Right | CV Axle Assembly |
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