TrakMotive
AAR CV Axle Shaft

TrakMotive KA-8125 CV Axle Shaft - Front Left

Brand TrakMotive KA-8125
Position Front Left
Abs Ring Tooth Count 48
Abs Ring Type Toothed
Abs Tone Ring Included Yes
Axle Nut Head Type Hex
Axle Nut Height (in) 0.94
Axle Nut Height (mm) 24
Axle Nut Hex Size (in) 1.26
Axle Nut Hex Size (mm) 32
Axle Nut Included Yes
Axle Nut Length (in) 1.45
Axle Nut Length (mm) 36.95
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 30
Outboard Joint Type Conventional
Outboard Shaft Connection Style Spline
Overall Compressed Length (in) 26.42
Overall Compressed Length (mm) 671
Product line AAR CV Axle Shaft
Fits Kia · 4 vehicles

New CV axle shaft. Built as a direct replacement for dependable driveline service.

Neoprene boot. Helps protect the joint from wear and contamination.

ABS tone ring included. Ready for applications that use a toothed ABS signal ring.

Cross-references TrakMotive KA-8125, 49500D4200 and NCV75078 for the same application. See all 3.

$131.75Free 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.

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Step 2 — Quantity
Order total $131.75
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Front Left CV Axle Shaft for Kia Optima

TrakMotive KA-8125 is a new front left CV axle shaft for select Kia Optima applications. It is built with a neoprene boot, spline-style shaft connections, and an included axle nut for the specified fitment.

This TrakMotive AAR CV Axle Shaft line focuses on application-specific driveline replacement parts for vehicles that need OE-style fit and function. For 2016-2019 Kia Optima front left service, KA-8125 provides the correct spline counts, ABS tone ring setup, and compressed length for the listed applications.

  • Fits 2019 Kia Optima, front left
  • Fits 2016-2018 Kia Optima, front left; updated design
  • New CV axle shaft for driveline repair
  • Neoprene boot material for joint protection
  • 48-tooth toothed ABS ring with ABS tone ring included
  • 27 inboard splines and 30 outboard splines
  • Overall compressed length: 26.42 in. (671 mm)
  • Includes axle nut with M22 x 1.5 thread, 32 mm hex size, and stake locking type

KA-8125 is a front left CV axle shaft for the Kia Optima that matches the listed OE-style dimensions and connection details. It uses a male inboard joint, conventional outboard joint, and spline shaft connections to support proper engagement at the transaxle and wheel end. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Replacement Uses

  • Clicking or popping during turns caused by worn CV joints
  • Vibration under acceleration from a damaged axle shaft
  • Grease leakage from a torn or deteriorated boot
  • ABS warning concerns related to a worn tone ring or sensor signal issue
  • Driveline noise from excessive axle play or spline wear

Installation Notes

Verify front left placement, spline counts, axle nut thread size, and ABS ring configuration before installation. The axle nut is included; confirm the 32 mm hex size and stake-style locking requirement during service. Because ABS axles fit non-ABS applications unless otherwise noted, confirm the vehicle’s brake and sensor setup against the listed fitment before replacing the original shaft.

Quality Assurance

TrakMotive manufactures this axle shaft as a new replacement part from an ISO 9001:1007 and TS 16949:2009 certified company. KA-8125 is backed by a limited lifetime warranty.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2019KiaOptima2.4LL4Front LeftAAR CV Axle Shaft
2018KiaOptima2.4LL4Front LeftUpdated Design; AAR CV Axle Shaft
2017KiaOptima2.4LL4Front LeftUpdated Design; AAR CV Axle Shaft
2016KiaOptima2.4LL4Front LeftUpdated Design; AAR CV Axle Shaft
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
TrakMotive — KA-812549500D4200NCV75078