Cardone 66-8250 CV Axle Assembly - Front Right

Cardone CV Axle Assembly for Mazda 3 Front Right

Cardone CV Axle Assembly 66-8250 is a new front right driveline replacement for select 2014-2018 Mazda 3 and Mazda 3 Sport models. It is built for direct replacement service with a splined 31-tooth input shaft, 28-tooth output shaft, and a self-lock axle nut design.

Key Features

• Fits 2014-2018 Mazda 3, front right
• Fits 2014-2018 Mazda 3 Sport, front right
• Cardone part number 66-8250
• Complete axle with instruction sheet
• New spindle nut included with M22 x 1.5 thread size
• No ABS ring included; ABS ring tooth count is 0
• Compressed length: 39.45 in.
• Splined connection style with 31 input shaft splines and 28 output shaft splines
• Neoprene boot design with added bellows where needed to reduce stress and cracking
• Boot clamps are pneumatically crimped for a tight seal
• Precision-machined transmission seal diameter after heat treatment for seal life
• High-temperature, high-torque grease for driveline service

Product Details

Cardone’s CV Axle Assembly line is engineered from testing and remanufacturing experience focused on common CV failure points. For this application, the axle shaft is individually verified for straightness to help deliver smooth operation and reduce vibration concerns at speed. The boot and seal design also addresses common wear areas by using durable materials and controlled crimping to help maintain joint protection and grease retention. If you are replacing a worn front right axle on a Mazda 3 or Mazda 3 Sport, Cardone 66-8250 provides a direct-fit driveline solution for the listed vehicles.

This part cross-references Mazda FTC42550X for the same application.

Common Problems This Part Can Address

• Clicking or snapping noise during hard turns and acceleration
• Grease leakage around the axle boot or underbody
• Front-end vibration caused by a worn or bent axle shaft
• Grinding or binding from a failing outer or inner CV joint
• ABS warning concerns after axle replacement when sensor components are disturbed

Installation Notes and Tips

• Fits 2014-2018 Mazda 3, front right, and 2014-2018 Mazda 3 Sport, front right.
• Do not let the axle hang unsupported during service; support the shaft to avoid joint damage.
• Use a torque wrench on the retaining nut and tighten to the vehicle manufacturer’s specification.
• Do not reuse a prevailing-torque lock nut; install the supplied new spindle nut.
• Replace transaxle seals when servicing the axle to help prevent leaks.
• Inspect ABS wiring and sensor components near the axle before reassembly.

Quality Assurance

Cardone designs CV drive axles around known failure causes, including boot cracking and shaft runout. Each shaft is checked for straightness to help maintain vibration-free performance, and the boot and grease system are selected to support long-term joint protection in normal driveline service.