ATV Pinion Bearing 20NQ3418D (20x34x18mm)

ATV Pinion Bearing 20NQ3418D: 20x34x18mm for ATVs and quads
✔️ 20x34x18 mm sealed pinion bearing for Arctic Cat and Suzuki ATVs

This pinion bearing is a precise replacement part sized 20x34x18 mm, used across Arctic Cat and Suzuki quad models from the late 90s to early 2000s. It’s a common maintenance item for the ATV drivetrain, supporting the pinion gear in 2x4, 4x4 and automatic configurations.

✅ Size: 20x34x18 mm (ID x OD x W)
✅ Part number: 20NQ3418D (aka Arctic Cat 3402-061)
✅ Pack: 1 bearing per order
✅ Fits Arctic Cat 400/454/500 models and Suzuki Quadmaster/Quadrunner lines
✅ Type: sealed ball bearing for ATV drive components

💡 What is a pinion bearing used for in ATV drivetrain systems?

The pinion bearing supports the pinion shaft and reduces friction in the drive path, helping keep gears aligned and the drivetrain smooth. This handy replacement keeps ATVs running reliably.

- Maintains gear alignment under load

- Reduces wear on the pinion and drive gears

- Handy to have for maintenance and quick repairs