TrakMotive
AAR CV Axle Shaft

TrakMotive AD-86021 CV Axle Shaft - Front Left

Brand TrakMotive AD-86021
Position Front Left
ABS Tone Ring Included No
ABS Tone Ring Tooth Quantity 0
Axle Bolt Hex Size (mm) 27
Axle Bolt Length (mm) 86
Axle Bolt Thread Size M16x1.5
Axle Nut Included No
Grade Type Premium
Inboard Joint Boot Material Neoprene
Inboard Joint Type Male
Inboard Shaft Connection Style Spline
Number Of Bolt Holes 1
Number Of Inboard Splines 37
Number Of Outboard Joint Bolt Holes 1
Number Of Outboard Shaft Bolts 1
Number Of Outboard Splines 36
Outboard Bolt Head Type Allen
Outboard Joint Boot Material Neoprene
Outboard Joint Type Audi style spline bolt
Outboard Shaft Connection Style Audi style spline bolt
Overall Compressed Length (in) 21.44
Overall Compressed Length (mm) 545
Overall Extended Length (in) 23.5
Overall Extended Length (mm) 596
Product line AAR CV Axle Shaft
Fits Audi · 6 vehicles

OE AAR design. Built for catalog-matched replacement planning on select driveline applications.

Neoprene boot material. Both joint boots use neoprene for durable sealing at the axle ends.

Limited lifetime warranty. TrakMotive backs this axle with warranty coverage and certified manufacturing controls.

Cross-references TrakMotive AD-86021 for the same application. See all 1.

$119.76Free 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 $119.76
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

TrakMotive AAR CV Axle Shaft

The TrakMotive AD-86021 is a premium CV axle shaft built for AAR-style applications with OE-style fitment details. It is engineered for select Audi models and uses neoprene boot materials, spline connections, and the specified bolt and spline counts for accurate replacement fit.

  • Premium-grade CV axle shaft for driveline service
  • Neoprene inboard and outboard boots for joint protection
  • ABS tone ring not included for non-ABS applications
  • OE AAR design reference for direct-fit replacement planning
  • Part number AD-86021 for ordering and catalog matching

Detailed Fitment and Design

This CV axle shaft is built around an AAR design and is listed for Fits 2016-2018 Audi A3, front left and Fits 2016-2018 Audi A3 Sportback e-tron, front left. The assembly uses a male inboard joint with spline connection, an Audi-style spline bolt outboard joint, and neoprene boot material at both ends. Key dimensions include a 21.44-inch compressed length and 23.5-inch extended length, along with a 27 mm axle bolt hex size and M16x1.5 thread size. The AD-86021 is a direct catalog match for these Audi driveline applications, and the AD-86021 part number should be verified against the vehicle’s original axle configuration before ordering.

Common Replacement Reasons

  • Clicking or popping during turns from worn CV joints
  • Vibration or shudder under acceleration from axle wear
  • Torn or deteriorated CV boots that expose the joint
  • Axle noise caused by spline or joint wear
  • ABS-related axle mismatch when the application does not use a tone ring

Installation Notes and Tips

Confirm the vehicle’s original axle style, spline count, and bolt specifications before installation. This axle is listed without an ABS tone ring, so it should be matched to non-ABS applications unless otherwise noted in the vehicle catalog. Verify compressed and extended length against the removed part to ensure proper suspension travel and driveline alignment. The AD-86021 should be installed only after confirming the OE AAR design requirements for the vehicle.

Quality Assurance

TrakMotive lists this axle under a limited lifetime warranty and identifies the product line as ISO 9001:2008 and TS 16949:2009 certified. Those quality systems support consistent manufacturing control for the AD-86021 and related driveline components.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2018AudiA31.4LL4—Front LeftOE AAR design; AAR CV Axle Shaft
2018AudiA3 Sportback e-tron1.4LL4PLUG-IN HYBRID EV-GAS (PHEV)Front LeftOE AAR design; AAR CV Axle Shaft
2017AudiA31.4LL4—Front LeftOE AAR design; AAR CV Axle Shaft
2017AudiA3 Sportback e-tron1.4LL4PLUG-IN HYBRID EV-GAS (PHEV)Front LeftOE AAR design; AAR CV Axle Shaft
2016AudiA31.4LL4—Front LeftOE AAR design; AAR CV Axle Shaft
2016AudiA3 Sportback e-tron1.4LL4PLUG-IN HYBRID EV-GAS (PHEV)Front LeftOE AAR design; AAR CV Axle Shaft
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
TrakMotive — AD-86021