TrakMotive KA-8125 front left CV axle shaft for the 2016-2020 Kia Optima carries drive torque from the transmission to the front left wheel. The TrakMotive CV axle has a joint at each end, so the wheel can steer and move with the suspension while the shaft keeps turning.
- Neoprene boots on both the inboard and outboard joints
- Toothed ABS tone ring with 48 teeth included
- Axle nut included, with a 32 mm hex and M22x1.5 thread
- Spline connections at both ends: 27 inboard splines and 30 outboard splines
- Overall compressed length of 671 mm (26.42 in)
Quick facts
- Part: TrakMotive KA-8125 CV axle shaft
- Fits: 2016-2020 Kia Optima
- Position: Front left
- Condition: New
Clicking when you turn, a torn boot with grease thrown around it, or vibration when you accelerate can mean this shaft is worn, though a worn wheel bearing or a damaged tire can be behind similar noises and vibration.
Fits
It is a direct-fit CV axle replacement for the 2016-2020 Kia Optima, installed on the front left side.
Specifications
Fit and size
- Position: Front left
- Quantity per application: 1
- Overall compressed length: 671 mm (26.42 in)
- Inboard splines: 27
- Outboard splines: 30
- Axle nut: 32 mm hex, M22x1.5 thread
Build and materials
- Joints: male inboard, conventional outboard
- ABS tone ring: included, toothed, 48 teeth
- Joint boots: neoprene, inboard and outboard
- Axle nut locking: stake
- Condition: New
- Warranty: TrakMotive limited lifetime warranty
- Country of origin: China
In the box
One CV axle shaft with its axle nut. This listing is one CV axle shaft for the front left; that side takes one, the front right is a separate part ordered separately, and the two sides are normally replaced together.
Interchange: NCV75078 · 49500D4200
This part cross-references / interchanges with the following part numbers:
NCV75078, 49500D4200, KA-8125
Frequently Asked Questions
Is the TrakMotive KA-8125 the right CV axle for a 2018 Kia Optima?
Yes. TrakMotive KA-8125 fits the 2016-2020 Kia Optima, which includes the 2018 model year, and it goes on the front left side.
Does the TrakMotive CV axle shaft come with the axle nut?
Yes. This front left TrakMotive KA-8125 includes its axle nut, a 32 mm hex with an M22x1.5 thread and stake locking.
How many teeth does the ABS ring on this CV axle have?
The toothed ABS tone ring is included with the shaft and has 48 teeth.
Can a torn boot on the front left axle mean the joint is wearing out?
Yes, a torn boot that lets grease out can go with a worn joint, as can clicking on turns. Have a shop check it promptly rather than driving on a suspect axle.
Is 49500D4200 an interchange number for this axle?
Yes. 49500D4200 is on the interchange list for TrakMotive KA-8125, along with NCV75078.
