Motor Factory 500380 Primary Chaincase Lube/Lubricant Motor Factory oil and lubricants are American made, specifically for Harley-Davidson motorcycles Primary Chaincase Lube is designed to lubricate the primary chain and clutch assembly in most Harley-Davidson motorcycles from 1984 to present Sold in one quart (946ml) bottles Blended to perform well at extreme temperatures to extend clutch life as well as protecting the primary chain from premature wear and failure