Description

When cylinder wear goes beyond standard limits, oversized pistons are the right solution to restore compression and minimize blow-by. This Yamaha SX240 1800 HO +.50mm complete engine rebuild kit gives you all the major parts needed to correct bore wear and restore durable performance on the water.

Because all kit components are selected to work together, you avoid mismatched parts and reduce assembly guesswork. In addition, REV6 inspects every piece before shipment, so you get parts that fit and stand up to extended use.

Rather than replacing only a few worn items, this complete kit renews the rotating, timing, and sealing systems at once. That approach helps deliver smoother operation and stronger compression than piecemeal repairs.

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 SX240 1800 HO Engine Rebuild Kit +.50mm

WHY THIS KIT MATTERS

Heavy bore wear leads to loss of compression, oil control issues, and reduced throttle response. Because this kit includes oversize pistons and all associated wear items, it helps restore proper clearances, renewed compression, and stronger overall performance.

Also, renovating the timing and sealing components at the same time helps improve engine consistency and reduces the chance of future failures.

SUPPORT & RESOURCES

Before ordering, review our warranty policy for coverage details. Next, find rebuild tips on the REV6 blog or check common questions in our FAQ center. If you need help confirming parts or fitment, contact our team for guidance.

FITMENT

Yamaha SX240 1800 HO
2013–2015 Models

TAKE ACTION
If your SX240 engine has heavy cylinder wear, this +.50mm rebuild kit gives you the matched parts needed to restore compression and performance. It ships nationwide—add it to your cart and rebuild with confidence.

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