520x78 O-Ring Chain 11/40 Sprockets for Polaris Trail Boss 330 (2003–2013)

520x78 O-Ring Chain 11/40 Sprockets for Polaris Trail Boss 330 (2003-2013)

Includes:
1 x 520x78 O-Ring Chain, 2 x 11/40 Sprockets

Fits Models:
Polaris Trail Boss 330

Model Years:
2003-2013

Submodels:
Standard

Engine Options:
329cc OHV single-cylinder

Description:
High-quality O-ring chain and sprockets kit designed for Polaris Trail Boss 330 ATV. Improves drive reliability and longevity, restoring smooth power transfer and accurate gearing across 2003–2013 models.

Features:
- Fits Polaris Trail Boss 330 (2003-2013)
- Includes chain plus sprockets for complete drive upgrade
- Durable O-ring construction for extended life
- Compatible with standard and basic gearing setups

Benefits:
- Enhanced drivetrain durability and performance
- Smoother acceleration and gear shifts
- Easy maintenance with a ready-to-install kit

Polaris parts, ATV drivetrain, chain kit, sprockets, Trail Boss 330, 2003-2013, OEM replacement, performance upgrade