JAVIK Front Right Brake Master Cylinder for Yamaha ATV — OEM 5KM-2583T-01-00

Upgrade your Yamaha ATV’s braking control with the JAVIK Front Right Brake Master Cylinder. Crafted from aluminum for lasting strength and finished to mirror OEM design, this unit provides a clean, plug‑in replacement that slots into your machine without extensive wiring changes. The integrated brake switch means you won’t need to modify the main harness, helping you keep electrical connections tidy and reliable on the trail or job site.

Designed to fit a broad spectrum of Yamaha ATV models, this master cylinder supports several popular lines from Bear Tracker and Big Bear to Bruin, Grizzly, Kodiak, and Wolverine. Before you order, verify your OEM number to ensure a precise match: 5KM-2583T-01-00 (OEM) or 4SH-2583T-01-00 (replacement).

Fitment and compatibility at a glance

• Bear Tracker 250 YFM250 (2002–2004)
• Big Bear 250 YFM250 (2007–2009)
• Big Bear 400 YFM400 (2002–2011)
• Bruin 250 YFM250 (2005–2006)
• Bruin 350 YFM350 (2004–2006)
• Grizzly 350 YFM350 (2007–2011)
• Grizzly 400 YFM400 (2007–2009)
• Grizzly 450 YFM450 (2007–2011)
• Grizzly 660 YFM660 (2002–2008)
• Kodiak 400 YFM400 (2002–2006)
• Kodiak 450 YFM450 (2003–2006)
• Wolverine 350 YFM350 (2002–2009)
• Wolverine 450 YFM450 (2006–2010)

Key build details emphasize compatibility and reliable function. The unit is made from aluminum to balance light weight with higher strength, and it uses an exact connector brake switch to minimize harness work. The package includes a front brake master cylinder assembly with brake switch, ready to install on most listed models. The 7/8-inch handlebar compatibility and a 10 mm banjo bolt are noted specifications that matter for proper fitting, feel, and line routing on many Yamaha ATVs.

Beyond raw fit, this replacement aims to deliver a solid, predictable braking feel that riders can rely on in varied conditions. While results can vary with overall system condition, the design aligns with the OEM form and connector layout, which some riders find beneficial for a straightforward upgrade path. Consider this as a possible upgrade that keeps the vehicle’s brake control consistent with familiar handling characteristics, without the need for intrusive wiring changes.

What you get is a focused, no-fruss piece intended to restore braking function on compatible Yamaha ATVs. For model families that span utility and recreational riding, having a compatible, plug‑in cylinder can help keep maintenance on schedule and riding expectations realistic—without promising specific performance outcomes.