TrakMotive TO-8439 CV Axle Shaft - Front Left

CV Axle Shaft for Toyota Yaris Front Left

TrakMotive TO-8439 is a new CV axle shaft for front left applications on select Toyota Yaris, Toyota Yaris iA, and Scion iA models. It is built with a neoprene boot, spline-style shaft connections, and includes the axle nut for a direct replacement on listed vehicles.

Key Features

• Brand: TrakMotive CV Axle Shaft
• Part number: TO-8439
• New axle shaft with conventional outboard joint type
• Neoprene boot material for driveline protection
• Inboard joint type: male
• Inboard and outboard shaft connection style: spline
• Axle nut included; M22 x 1.5 thread, 30 mm hex size, stake locking type
• No ABS tone ring included
• Overall compressed length: 24.09 in. (612 mm)
• Cross-reference: This part cross-references OE numbers 43420WB001 and 43420WB003 for the same application.

Detailed Description

TrakMotive TO-8439 is a front left CV axle shaft engineered for listed Toyota and Scion applications, including 2019-2020 Toyota Yaris, 2016-2018 Toyota Yaris, 2017-2018 Toyota Yaris iA, and 2016 Scion iA. The axle is supplied new and uses spline connections at both ends, with a conventional outboard joint and a male inboard joint for direct driveline replacement on the specified vehicles. TrakMotive’s CV Axle Shaft line focuses on replacement driveline components for passenger vehicles, and this part follows that product line with application-specific fitment and hardware details.

Common Replacement Reasons

• Clicking or popping during turns from worn CV joints
• Vibration or shudder during acceleration
• Torn boot or grease loss at the axle assembly
• Excessive driveline play or noise from a damaged shaft
• Front left axle wear on Toyota Yaris, Toyota Yaris iA, or Scion iA models

Installation Notes

Verify front left fitment by year, make, and model before installation. Confirm axle nut thread size, hex size, and locking style against the vehicle’s original hardware. This axle does not include an ABS tone ring, so it should be matched to the listed non-tone-ring application details. Use the specified axle nut and follow factory service procedures for torque and staking.

Quality Assurance

TrakMotive states that this CV axle shaft is backed by a limited lifetime warranty and produced by an ISO 9001:1007 and TS 16949:2009 certified company.