TrakMotive
CV Axle Shaft

TrakMotive BM-8231 CV Axle Shaft - Rear Left

Brand TrakMotive BM-8231
Position Rear Left
ABS Ring Tooth Count 48
ABS Ring Type Window
ABS Tone Ring Included Yes
Axle Nut Head Type Hex
Axle Nut Height (mm) 17
Axle Nut Hex Size (in) 1.16
Axle Nut Hex Size (mm) 30
Axle Nut Included Yes
Axle Nut Length (mm) 35
Axle Nut Locking Type Stake
Axle Nut Socket Size 30
Axle Nut Thread Size M24x1.5
Grade Type Premium
Inboard Joint Boot Material Neoprene
Inboard Joint Type Bolt-on
Inboard Shaft Connection Style Bolt-on
Number Of Bolt Holes 0
Number Of Inboard Joint Bolt Holes 6
Number Of Inboard Shaft Bolts 0
Number Of Inboard Splines 0
Number Of Outboard Joint Bolt Holes 0
Number Of Outboard Shaft Bolts 0
Number Of Outboard Splines 27
Outboard Joint Boot Material Neoprene
Outboard Joint Type Conventional
Outboard Shaft Connection Style Spline
Overall Compressed Length (in) 24.21
Overall Compressed Length (mm) 615
Overall Extended Length (in) 26.69
Overall Extended Length (mm) 678
Product line CV Axle Shaft
Fits BMW · 18 vehicles

Bolt-on design. Simplifies installation with a direct-fit axle shaft assembly.

Neoprene boots. Help protect the joints from dirt and moisture.

ABS tone ring included. Supports vehicles with ABS applications when specified.

Cross-references TrakMotive BM-8231 and 33211229591KT for the same application. See all 2.

$260.63Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $260.63
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

BMW Rear Left CV Axle Shaft BM-8231

TrakMotive BM-8231 is a rear left CV axle shaft for select BMW 3 Series and Z4 applications. It is built as a premium replacement axle with OE-style dimensions and joint design to help maintain original ride quality on the listed vehicles.

Key Features

  • Fits rear left applications on select 1999-2006 BMW 323i, 325i, 325Ci, 328i, and 2003-2005 BMW Z4 models
  • Premium-grade CV axle shaft with OE-style fit and function
  • Overall compressed length: 615 mm (24.21 in); overall extended length: 678 mm (26.69 in)
  • Outboard joint uses a conventional design with 27 outboard splines
  • Inboard joint uses a bolt-on design with 6 inboard joint bolt holes
  • Includes axle nut and ABS tone ring
  • ABS ring: 48-tooth window style
  • Neoprene boot material on both inboard and outboard joints
  • Axle nut specs: M24x1.5 thread, 30 mm hex/socket size, stake locking type

Product Details

TrakMotive BM-8231 is a CV axle shaft engineered for rear left driveline service on BMW 323i, 328i, 325i, 325Ci, and Z4 models listed in the fitment data. The axle uses a spline connection at the outboard side, a bolt-on inboard joint, and OE-style proportions to match the original axle layout. This part number BM-8231 also cross-references BMW 33211229591KT for the same application.

The TrakMotive CV Axle Shaft line focuses on replacement driveline components built to support factory-style operation. For BMW owners searching for a rear left CV axle shaft for 2001-2006 BMW 325Ci, 2001-2005 BMW 325i, or 2003-2005 BMW Z4, BM-8231 provides the specified dimensions and hardware details needed for a direct-service replacement.

Common Problems This Part Can Address

  • Clicking or popping from a worn CV joint
  • Vibration during acceleration from a damaged axle shaft
  • Grease leakage from torn or deteriorated axle boots
  • Excessive driveline play from worn splines or joint wear
  • ABS warning concerns related to a damaged tone ring or sensor interface

Installation Notes

Verify rear left fitment by year, model, and axle configuration before installation. Confirm axle nut thread size, hex size, and locking style match the vehicle specification, and inspect the hub, seals, and mounting points for wear before installing the new axle. Because this axle includes an ABS tone ring, make sure the sensor area is clean and free of debris during service.

Quality Assurance

TrakMotive lists BM-8231 as a premium CV axle shaft from an ISO 9001:2008 and TS 16949:2009 certified company. Manufacturer coverage includes a limited lifetime warranty.

  • Fits 1999-2000 BMW 323i, rear left
  • Fits 1999-2000 BMW 328i, rear left
  • Fits 2001-2005 BMW 325i, rear left
  • Fits 2001-2006 BMW 325Ci, rear left
  • Fits 2003-2005 BMW Z4, rear left
This part fits 18 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeTransmissionPositionNotes
2006BMW325Ci——Rear LeftOEM Style Axle to Retain Original Ride Quality; CV Axle Shaft
2005BMW325Ci——Rear LeftOEM Style Axle to Retain Original Ride Quality; CV Axle Shaft
2005BMW325i——Rear LeftOE (Hollow) Style Axle; CV Axle Shaft
2005BMWZ4—AutomaticRear LeftOEM Style Axle to Retain Original Ride Quality; CV Axle Shaft
2004BMW325Ci——Rear LeftOEM Style Axle to Retain Original Ride Quality; CV Axle Shaft
2004BMW325i——Rear LeftOE (Hollow) Style Axle; CV Axle Shaft
2004BMWZ4—AutomaticRear LeftOEM Style Axle to Retain Original Ride Quality; CV Axle Shaft
2003BMW325Ci——Rear LeftOEM Style Axle to Retain Original Ride Quality; CV Axle Shaft
2003BMW325i——Rear LeftOE (Hollow) Style Axle; CV Axle Shaft
2003BMWZ4—AutomaticRear LeftOEM Style Axle to Retain Original Ride Quality; CV Axle Shaft
2002BMW325Ci——Rear LeftOEM Style Axle to Retain Original Ride Quality; CV Axle Shaft
2002BMW325i——Rear LeftOE (Hollow) Style Axle; CV Axle Shaft
2001BMW325Ci——Rear LeftOEM Style Axle to Retain Original Ride Quality; CV Axle Shaft
2001BMW325i——Rear LeftOE (Hollow) Style Axle; CV Axle Shaft
2000BMW323i——Rear LeftOEM Style Axle to Retain Original Ride Quality; CV Axle Shaft
2000BMW328i—AutomaticRear LeftOEM Style Axle to Retain Original Ride Quality; CV Axle Shaft
1999BMW323iSedan—Rear LeftOEM Style Axle to Retain Original Ride Quality; CV Axle Shaft
1999BMW328iSedan—Rear LeftOEM Style Axle to Retain Original Ride Quality; CV 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 — BM-823133211229591KT