OLIFANT Starter Drive Bendix for Polaris ATVs — 17-Tooth CCW Replacement (39mm) Restores Reliable Starting

OLIFANT Starter Drive Bendix is a direct-fit 17-tooth, counterclockwise starter drive built to replace worn OEM Bendix units on a wide range of Polaris ATVs and Rangers.

This replacement starter drive is designed for Polaris Sportsman, Scrambler, Big Boss, Magnum, Xplorer, Trail Boss and Ranger models spanning many model years. It matches common OE part numbers and fits applications that originally used a 17-tooth (39 mm outside diameter) counterclockwise Bendix. The unit provides the mechanical engagement between starter motor and engine flywheel, restoring reliable starting performance when the original drive has failed or shows wear.

Which Polaris machines will this starter drive fit?

It fits numerous Polaris ATVs and UTVs across older and newer model ranges where the OEM specification calls for a 17-tooth CCW Bendix. Verify fitment by cross-referencing part numbers or measuring the old drive.

• Sportsman: 335, 400, 450, 500 (1996–2014 ranges)
• Scrambler: 400, 500, 400L 2x4 & 4x4 (1984–2012)
• Big Boss: 250, 300, 350, 400, 500 (1989–2002)
• Magnum & others: Magnum 325/330/425/500; Xplorer, Trail Boss, Ranger models
• OE cross-reference: 3083647, 3085394, 3087030, 3089255, 3090034, SM1329850, SMU5003

How does the 17-tooth CCW specification affect compatibility?

The tooth count and rotation direction determine how the Bendix meshes with the starter pinion and flywheel. Using the wrong specification can lead to poor engagement or damage, so confirm both tooth number and CCW (counterclockwise) rotation before installing.

• 17-tooth pitch and 39 mm outside diameter for correct meshing
• Counterclockwise (CCW) rotation orientation required for matched starters
• Compare part numbers or measure the old part for verification

What are the key signs you need to replace the starter drive?

Common symptoms include grinding noises during start-up, failure to engage the flywheel, or slipping where the engine cranks but does not turn over. These failures typically point to worn teeth, a weakened spring, or internal binding in the Bendix assembly.

• Grinding or intermittent engagement when starting the vehicle
• No engagement while starter motor spins (starter freewheels)
• Visible wear or missing teeth on the gear profile
• Starter stalls or requires repeated attempts to engage

How straightforward is installation and what should I prepare?

Installation is a standard starter service task but requires basic mechanical tools and workplace safety. Remove the starter motor, replace the Bendix on the motor shaft following OEM torque and alignment guidance, then bench-test engagement before reinstalling.

• Tools: socket set, screwdrivers, pliers, and service manual for torque specs
• Procedure: disconnect battery, remove starter, swap Bendix, bench-test, reinstall
• Recommended: inspect starter motor and flywheel for complementary wear

Who this is for: This OLIFANT starter drive is aimed at ATV and UTV owners, mechanics, and restoration enthusiasts working on Polaris Sportsman, Scrambler, Big Boss, Magnum, Xplorer, Trail Boss and Ranger machines that require a 17-tooth CCW Bendix. It’s intended for anyone needing an OE-referenced replacement to restore dependable starter engagement and extend the service life of the vehicle’s starting system.