520-104 O-Ring Drive Chain for Yamaha DT250 1974-1979

520-104 O-Ring Drive Chain for Yamaha DT250

This 520-104 O-ring drive chain is a replacement chain built to fit Yamaha DT250 models from 1974 through 1979, delivering reliable power transfer from engine to rear wheel.

Overview

This O-ring drive chain is a direct-fit replacement for the Yamaha DT250, sized 520-104 to match the original chain length. The O-ring design seals lubricant inside each roller for longer wear life on dirt and trail rides. Riders maintaining a 1974-1979 DT 250 will find this chain an ideal renewal part for worn or stretched originals.

Built For Performance

• O-ring seals retain grease and block dirt and moisture
• 520 pitch matches the DT250 sprocket configuration
• 104 link count fits stock gearing without modification
• Heat-treated pins and rollers for extended service life
• Pre-stretched construction resists elongation under load

Fits These Machines

• for Yamaha DT250 1974
• for Yamaha DT250 1975
• for Yamaha DT250 1976
• for Yamaha DT250 1977
• for Yamaha DT250 1978
• for Yamaha DT250 1979

On-The-Job Use

• Trail riding and off-road recreation
• Enduro and dual-sport use
• Routine drivetrain maintenance
• Restoring a vintage DT250

Specs At A Glance

Good To Know

Q: Does this chain come with a master link? A: Yes, this 520-104 O-ring chain is supplied with the connecting link needed for installation. Q: Can I run this on a modified DT250 with taller gearing? A: It fits stock gearing at 104 links, but altered sprocket sizes may require a different link count.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.