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home > Yamaha YZ IT DZ Transmission Ball Bearing Genuine OEM > Yamaha YZ IT DZ Transmission Ball Bearing Genuine OEM

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Yamaha YZ IT DZ Transmission Ball Bearing Genuine OEMYamaha YZ IT DZ Transmission Ball Bearing Genuine OEM Part Number: 93306 30411 00 (also 933063041100)Industry Code: 6304Official Name: Bearing (B6304)Condition: New Genuine OEMPlacement: Internal Transmission Gearbox Crankcase Product Overview This is a brand new, genuine Yamaha factory transmission bearing. As a "6304" series deep groove radial ball bearing, it is engineered to handle high rotational speeds and significant radial loads within the

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Yamaha YZ IT DZ Transmission Ball Bearing Genuine OEM

Part Number: 93306-30411-00 (also 933063041100)
Industry Code: 6304
Official Name: Bearing (B6304)
Condition: New / Genuine OEM
Placement: Internal Transmission / Gearbox / Crankcase

Product Overview

This is a brand new, genuine Yamaha factory transmission bearing. As a "6304" series deep-groove radial ball bearing, it is engineered to handle high rotational speeds and significant radial loads within the gearbox. Over time, internal engine bearings can develop "pitting" on the races or excessive play in the cages, leading to transmission whine, difficult shifting, or catastrophic engine failure if the bearing disintegrates. Replacing worn bearings with genuine Yamaha parts ensures factory-spec tolerances and the smoothest possible shifting.

Why Choose Genuine Yamaha?

Internal engine components are under constant stress and heat. While generic 6304 bearings exist, Yamaha OEM bearings are sourced from top-tier Japanese manufacturers (like NTN, NSK, or KOYO) and are specifically cleared for internal oil-bath lubrication and the high-vibration environment of a 2-stroke or 4-stroke crankcase.

Major Vehicle Compatibility

This bearing is a staple of Yamaha’s mid-sized off-road and street engines from 1977 through 2025. Key fitments include:

YZ Motocross: YZ125 (1981–2004), YZ100 (1982–1983), YZ80 (various years).
IT Enduro Series: IT175 (1977–1983), IT200 (1984–1986), IT125 (1980–1981).
DT Dual-Sport: DT125 (1980–2025), DT175 (1978–2002), DT100 (1977–1983).
Vintage / Specialty: MX175 (1979–1981), TY250Z Trials (1993–1994), YT125 Tri-Moto (1980–1985).

Technical Specifications

Dimensions: 20mm (ID) x 52mm (OD) x 15mm (Width).
Type: Open-face (designed for internal oil-bath lubrication).
Design: Deep groove radial ball bearing for maximum durability.
Origin: Made in Japan.

selling as pictured.

more than welcome to pick up at shop in butler pa & save shipping.

030626 jy

Yamaha YZ IT DZ Transmission Ball Bearing Genuine OEM

Name: Yamaha YZ IT DZ Transmission Ball Bearing Genuine OEM
Brand: alliance-ir.net
SKU: 57581858892
Price: 58.95 USD
Availability: InStock
Rating: 4.7569 (283 reviews)