TrakMotive
CV Axle Shaft

TrakMotive NI-8406 CV Axle Shaft - Rear Right

Brand TrakMotive NI-8406
Position Rear Right
Abs Tone Ring Included No
Axle Nut Head Type Hex
Axle Nut Height (in) 2/3
Axle Nut Height (mm) 17.5
Axle Nut Hex Size (in) 1 2/5
Axle Nut Hex Size (mm) 35.5
Axle Nut Included Yes
Axle Nut Length (in) 1 3/5
Axle Nut Length (mm) 41
Axle Nut Locking Type Cotter Pin
Axle Nut Thread Size M24*1.5
Boot Material Neoprene
Inboard Joint Type Flange
Inboard Shaft Connection Style Flange
New Or Remanufactured New
Number Of Outboard Splines 29
Outboard Joint Type Conventional
Outboard Shaft Connection Style Conventional
Overall Compressed Length (in) 26.14
Overall Compressed Length (mm) 664
Product line CV Axle Shaft
Fits INFINITI · 5 vehicles

New unit. Built as a fresh replacement axle shaft, not remanufactured.

Neoprene boot. Helps resist wear while keeping the joint protected.

Includes axle nut. Comes with a hex nut and cotter-pin locking style.

Cross-references TrakMotive NI-8406 and 39600AR400 for the same application. See all 2.

$129.08Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $129.08
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

CV Axle Shaft for Rear Right Service

TrakMotive NI-8406 is a new CV axle shaft for the rear right position on select Infiniti Q45 models. It is built for 2002-2006 Infiniti Q45 applications and includes the axle nut for a direct replacement on the specified driveline position.

Key Features

  • Fits 2002-2006 Infiniti Q45, rear right
  • TrakMotive CV Axle Shaft, part number NI-8406
  • New replacement axle with flange-style inboard joint and flange shaft connection
  • Conventional outboard joint and conventional outboard shaft connection
  • Neoprene boot material for driveline protection
  • 29 outboard splines
  • Axle nut included with M24 x 1.5 thread size and cotter pin locking type
  • Overall compressed length: 26.14 in. (664 mm)

Product Details

This TrakMotive CV axle shaft is engineered for the rear right driveline position on the Infiniti Q45 and cross-references OE application 39600AR400. The NI-8406 uses a flange-style inboard connection, a conventional outboard joint, and a neoprene boot to support consistent operation in the rear axle assembly. TrakMotive identifies this part as a new unit and notes ISO 9001:1007 and TS 16949:2009 certified manufacturing practices.

The NI-8406 is a direct-fit style replacement for 2002-2006 Infiniti Q45 rear right service, making it a practical choice when addressing axle wear, joint noise, or driveline vibration on the specified vehicle application. The included axle nut features a hex head, M24 x 1.5 thread size, and cotter pin locking design.

Common Repair Reasons

  • Clicking or popping from the rear axle area
  • Vibration during acceleration or cruising
  • Boot wear or grease loss at the CV joint
  • Excessive play in the rear right axle assembly
  • Noise from a worn driveline connection on Infiniti Q45 models

Installation Notes

Verify rear right fitment before installation on 2002-2006 Infiniti Q45 models. Confirm spline count, axle length, and flange connection style against the original part. Inspect the mating surfaces, seals, and hub components during replacement, and torque the axle nut to the vehicle manufacturer specification.

Quality Assurance

TrakMotive backs this CV axle shaft with a limited lifetime warranty. The part is produced by an ISO 9001:1007 and TS 16949:2009 certified company, supporting consistent manufacturing control for the NI-8406 application.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2006INFINITIQ45Rear RightCV Axle Shaft
2005INFINITIQ45Rear RightCV Axle Shaft
2004INFINITIQ45Rear RightCV Axle Shaft
2003INFINITIQ45Rear RightCV Axle Shaft
2002INFINITIQ45Rear RightCV Axle Shaft
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
TrakMotive — NI-840639600AR400