Description

When bore wear exceeds what a standard size rebuild can fix, stepping up to +.50mm pistons gives you the clearance and compression you need. This Yamaha VXR 1800 HO +.50mm complete engine rebuild kit is built for just that — restoring worn cylinders and internal components with a matched, oversized package.

Because all parts in this kit are chosen specifically for oversize use, you avoid parts mismatch and extra guesswork during assembly. In addition, REV6 inspects every component for correct fit and quality before shipment so you install parts you can trust.

Instead of replacing only a few items, this rebuild kit renews critical rotating, timing, and sealing parts all at once. As a result, the engine renews its internal strength and runs more reliably on the water.

THIS KIT INCLUDES

• Crankshaft – 6S5-11411-01-00
• Cam chain – 94591-66152-00
• Cam chain damper guide – 6BH-12251-00-00
• Cam chain tension guide – 6BH-12252-00-00
• Cam chain upper guide – 6BH-12241-00-00
• Complete gasket kit – 6CR-W0001-01-00, 6CS-W0001-01-00, 6HM-W0001-00-00, 6HM-W0001-01-00
• Oversize +.50mm piston kits – 6BH-11631-00-B0
• Connecting rods – 6BH-11650-10-00
• Connecting rod bearings (black) – 6S5-11656-50-00
• Crankshaft bearings (green) – 6S5-11416-40-00
• Intake camshaft – 6BH-12171-10-00
• Exhaust camshaft – 6BH-12181-10-00
• Camshaft gears – 6D3-12176-10-00, 90105-07004-00

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Yamaha VXR 1800 HO Engine Rebuild Kit +.50mm

WHY A +.50MM REBUILD

When cylinder wear goes beyond minor taper or ridges, oversize pistons restore the bore dimension and help recover compression. Because this kit includes all major wear items, your rebuild renews the engine as a whole, not in pieces.

Likewise, installing a matched set of oversized pistons, bearings, and timing parts helps reduce future wear and improves reliability on the water.

SUPPORT & RESOURCES

Before ordering, review our warranty policy to understand coverage details. You can also find rebuild insight on the REV6 blog, browse questions in our FAQ center, or contact our team for fitment help.

FITMENT

Yamaha VXR 1800 HO
2013–2015 Models

TAKE ACTION
If internal wear has reached the point where standard rebuilds fall short, this +.50mm kit gives you the matched oversize parts needed to do the job right. Ships nationwide—add it to your cart and rebuild with confidence.

We proudly support veteran and service member discounts at REV6.