TrakMotive
CV Axle Shaft

TrakMotive SB-8129 CV Axle Shaft - Rear Left or Rear Right

Brand TrakMotive SB-8129
Position Rear Left
Abs Tone Ring Included No
Axle Nut Head Type Hex
Axle Nut Height (in) 0.79
Axle Nut Height (mm) 20
Axle Nut Hex Size (in) 1.25
Axle Nut Hex Size (mm) 31.8
Axle Nut Included Yes
Axle Nut Length (in) 1.45
Axle Nut Length (mm) 36.719459999999998
Axle Nut Locking Type Stake
Axle Nut Thread Size M22*1.5
Boot Material Neoprene
Inboard Joint Type Male
Inboard Shaft Connection Style Spline
New Or Remanufactured New
Number Of Inboard Splines 27
Number Of Outboard Splines 25
Outboard Joint Type Conventional
Outboard Shaft Connection Style Spline
Overall Compressed Length (in) 30.16
Overall Compressed Length (mm) 766
Product line CV Axle Shaft
Fits Subaru · 6 vehicles

OE direct replacement. New CV axle shaft with spline connections for straightforward installation.

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

Axle nut included. Comes ready with a hex, stake-lock nut for easier service.

Cross-references TrakMotive SB-8129 and 28421AG0BB for the same application. See all 2.

$116.77Free 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 $116.77
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

TrakMotive SB-8129 CV Axle Shaft

TrakMotive SB-8129 is a new rear CV axle shaft for select 2007-2009 Subaru Legacy applications. It is built for rear left and rear right positions and includes the axle nut for a direct replacement on the specified vehicles.

Key Features

  • Brand: TrakMotive CV Axle Shaft
  • Part number: SB-8129
  • Fits 2007-2009 Subaru Legacy, rear right
  • Fits 2007-2009 Subaru Legacy, rear left
  • New axle shaft with neoprene boot material
  • Inboard joint type: male
  • Inboard and outboard shaft connection style: spline
  • Overall compressed length: 30.16 in. (766 mm)
  • Axle nut included; M22 x 1.5 thread, stake locking type
  • No ABS tone ring included

Product Details

This TrakMotive CV axle shaft is engineered for rear driveline service on the Subaru Legacy and matches the listed fitment for 2007, 2008, and 2009 models. The SB-8129 uses a conventional outboard joint, a male inboard joint, and spline connections at both ends to match the original driveline layout for the specified rear positions. TrakMotive identifies this part as a new component and notes ISO 9001:1007 and TS 16949:2009 certified manufacturing, along with a limited lifetime warranty. This part cross-references OE-style application 28421AG0BB for the same application.

Common Repair Symptoms

  • Clicking or popping from the rear axle area during turns
  • Vibration or shudder from the rear driveline
  • Grease leakage from a damaged axle boot
  • Noise caused by worn CV joints
  • Rear axle failure on a 2007-2009 Subaru Legacy

Installation Notes

Verify rear left or rear right application before installation on the Subaru Legacy. Confirm axle nut thread size, hex size, and compressed length against the original part before assembly. Because this axle does not include an ABS tone ring, use it only where the vehicle configuration matches the listed application details. Inspect related seals, hubs, and suspension components during replacement to help ensure a proper repair.

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 SB-8129 replacement axle.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelTransmissionPositionNotes
2009SubaruLegacyGT spec.BManualRear RightCV Axle Shaft
2009SubaruLegacyGT spec.BManualRear LeftCV Axle Shaft
2008SubaruLegacyGT spec.BManualRear RightCV Axle Shaft
2008SubaruLegacyGT spec.BManualRear LeftCV Axle Shaft
2007SubaruLegacyGT spec.BManualRear RightCV Axle Shaft
2007SubaruLegacyGT spec.BManualRear LeftCV 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 — SB-812928421AG0BB