TrakMotive NI-8739 CV Axle Shaft - Front Left

OE-Style Front Left CV Axle Shaft

The TrakMotive NI-8739 AAR CV Axle Shaft is a new front left driveline replacement for select Nissan Murano, Nissan Pathfinder, and INFINITI QX60 applications. Built for OE AAR design coverage, it supports smooth power transfer from the transaxle to the wheel while matching the required spline and joint configuration.

TrakMotive’s AAR CV Axle Shaft line focuses on direct-fit replacement coverage for late-model import vehicles. The NI-8739 is engineered for the front left position and is listed for specific OE AAR design applications, including updated-design QX60 coverage where noted.

Key Features

• Brand: TrakMotive AAR CV Axle Shaft
• Part number: NI-8739
• Front left CV axle shaft for select Nissan and INFINITI vehicles
• New replacement axle with neoprene boot material
• Male inboard joint with spline shaft connection
• Conventional outboard joint with spline shaft connection
• 29 inboard splines and 32 outboard splines
• Axle nut included; hex head, M24 x 1.5 thread, cotter pin locking type
• No ABS tone ring included
• Overall compressed length: 26.61 in. (676 mm)

Detailed Description

The NI-8739 is a TrakMotive CV axle shaft built for front left applications that require OE AAR design fitment. It is listed for 2019-2024 Nissan Murano front left, 2014-2017 INFINITI QX60 front left, 2018-2020 INFINITI QX60 front left with updated design, 2021 INFINITI QX60 front left, 2015 Nissan Pathfinder front left, and 2014 Nissan Pathfinder front left from 11/2013. This part number, NI-8739, is a direct replacement option for vehicles that use the specified spline count, joint style, and compressed length.

Construction details include a neoprene boot, male inboard joint, conventional outboard joint, and spline-style shaft connections at both ends. The axle nut is included and uses a 1.25 in. hex size with M24 x 1.5 thread and cotter pin locking. This part cross-references 391019PM3A for the same application.

What This Axle Helps Address

• Clicking or popping during turns caused by worn CV joints
• Vibration or shudder under acceleration from a worn axle assembly
• Grease leakage from a damaged CV boot
• Excessive drivetrain play at the front left wheel end
• Noise from a failing OE-style front axle shaft

Installation Notes and Tips

Verify front left fitment by year, model, and OE AAR design before installation. Confirm spline count, axle length, and axle nut thread size against the original part. The axle nut is included, and the axle does not use an ABS tone ring. For best results, inspect related suspension and hub components for wear before installing the new axle shaft.

Quality Assurance

TrakMotive lists this AAR CV Axle Shaft as a new part from an ISO 9001:1007 and TS 16949:2009 certified company. The NI-8739 is backed by a limited lifetime warranty.