HomeDriveline and Axles > CV ComponentsTrakMotive TO-8439 CV Axle Shaft - Front Left
Part #: TO-8439

TrakMotive TO-8439 CV Axle Shaft - Front Left

CV Axle Shaft, Front Left
⚙️ 9 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦CV Axle Shaft, Front Left
🚗Fitment: Toyota and Scion, Yaris, Yaris iA, and iA
🔄Easy Returns — Return within 60 days for a full refund
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Reliable CV Axle Shaft for Toyota Yaris and Scion iA

The TrakMotive CV Axle Shaft TO-8439 is engineered to provide dependable driveline performance for Toyota Yaris, Yaris iA, and Scion iA models. Designed as a new replacement part, it ensures precise fitment and durability for your vehicle's front-wheel-drive system.

  • Brand: TrakMotive
  • Brand Line: CV Axle Shaft
  • Part Number: TO-8439
  • Compatible with Toyota Yaris, Yaris iA, and Scion iA
  • Overall compressed length: 24.09 inches (612 mm)
  • Boot material: durable neoprene
  • Axle nut included with stake locking type
  • Outboard joint type: conventional with 30 splines
  • Inboard joint type: male with spline connection
  • Axle nut specifications: hex head, 1.18 inch (30 mm) hex size, 0.85 inch (21.5 mm) height

TrakMotive CV Axle Shaft Product Line Overview

The TrakMotive CV Axle Shaft product line focuses on delivering reliable constant velocity components designed to meet OEM specifications. This line emphasizes quality materials such as neoprene boots and precise spline connections to ensure smooth power transfer and long service life. The TO-8439 model is part of this line, offering a new axle shaft solution tailored for specific Toyota and Scion models.

Detailed Product Description

The TO-8439 CV Axle Shaft from TrakMotive is a new, direct replacement part designed for the front driveline of Toyota Yaris, Yaris iA, and Scion iA vehicles. It features a neoprene boot that provides resistance to wear and environmental factors, helping to protect the internal joint components. The axle shaft includes a stake-type locking axle nut with a hex head, measuring 1.18 inches across the flats and 0.85 inches in height, ensuring secure installation. The outboard joint uses a conventional design with 30 splines, while the inboard joint is a male spline type, providing a reliable connection to the transmission and wheel hub. The overall compressed length of 24.09 inches (612 mm) matches OEM specifications for proper fitment and function.

Common Applications and Problem Solving

  • Replacement for worn or damaged CV axle shafts on Toyota Yaris, Yaris iA, and Scion iA
  • Eliminates clicking or popping noises during turns caused by joint wear
  • Resolves vibration or shuddering issues related to axle imbalance or joint failure
  • Prevents grease leaks by replacing torn or degraded CV boots
  • Restores driveline integrity after axle shaft bending or breakage

Installation Notes and Tips

  • Ensure compatibility with your specific Toyota Yaris or Scion iA model year before installation
  • Use the included axle nut with stake locking to secure the axle shaft properly
  • Inspect surrounding components such as wheel bearings and suspension parts during replacement
  • Torque axle nut to manufacturer specifications to avoid premature wear or loosening
  • Check for proper boot seating to prevent contamination and extend joint life

Quality Assurance and Warranty

TrakMotive CV Axle Shafts are manufactured to meet or exceed OEM standards for fit, form, and function. The TO-8439 is a new part, not remanufactured, ensuring consistent quality and reliability. While specific warranty details may vary, TrakMotive products typically come with a limited warranty covering defects in materials and workmanship. Always verify warranty terms with the supplier or manufacturer.

BrandTrakMotive
Part NumberTO-8439
PositionCV Axle Shaft, Front Left
Abs Tone Ring IncludedNo
Axle Nut Head TypeHEX
Axle Nut Height (in)0.85
Axle Nut Height (mm)21.5
Axle Nut Hex Size (in)1.18
Axle Nut Hex Size (mm)30
Axle Nut IncludedYes
Axle Nut Length (in)1.36
Axle Nut Length (mm)34.64
Axle Nut Locking TypeStake
Axle Nut Thread SizeM22*1.5
Boot MaterialNeoprene
Inboard Joint TypeMale
Inboard Shaft Connection StyleSpline
New Or RemanufacturedNew
Number Of Inboard Splines/
Number Of Outboard Splines30
Outboard Joint TypeConventional
Outboard Shaft Connection StyleSpline
Overall Compressed Length (in)24.09
Overall Compressed Length (mm)612

This part fits 9 vehicles. Search below:

YearMakeModelBody TypeTransmissionPositionNotes
2020ToyotaYarisAutomaticFront LeftStandard Duty Replacement; CV Axle Shaft
2019ToyotaYarisAutomaticFront LeftStandard Duty Replacement; CV Axle Shaft
2018ToyotaYarisSedanAutomaticFront LeftCV Axle Shaft
2018ToyotaYarisSedanAutomatic CVTFront LeftCV Axle Shaft
2018ToyotaYaris iAAutomaticFront LeftCV Axle Shaft
2017ToyotaYarisSedanAutomaticFront LeftCV Axle Shaft
2017ToyotaYaris iAAutomaticFront LeftCV Axle Shaft
2016ScioniAAutomaticFront LeftCV Axle Shaft
2016ToyotaYarisSedanAutomaticFront LeftCV Axle Shaft

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

43420WB00143420WB003TO-8439

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.