Yamaha Outboard Thermostat – Part Number 6E5-12411-30
Supersedes: 688-12411-10, 688-12411-11

This thermostat is a direct replacement for Yamaha 2-stroke and HPDI outboards, providing consistent temperature regulation to support smooth engine performance. Built to withstand harsh marine conditions and engineered for a precise OEM fit.

Compatible Yamaha Outboards:
2-Stroke Models:
• 9.9F, 15F, 25N (1994 onward)
• 30D, 40V, 75C, 90A, 100A, 115C
• 130B, 150F, 175D, 200F, 200G
• 225D, 250A, 225G, 250B

HPDI Models:
• Z150P, Z150Q
• Z175G
• Z200N, Z200P

Key Features:
• Replaces Yamaha part number 6E5-12411-30
• Also supersedes 688-12411-10 and 688-12411-11
• Marine-grade build quality
• Designed for durability and precise temperature control
• Easy to install — direct OEM fit

⚓ Why Buy from SSI Marine?

• UK stock – ready to ship
• Same-day dispatch on orders before 1PM
• Tracked delivery
• Friendly, knowledgeable support

Keep your Yamaha outboard running at its best — trust SSI Marine for quality replacement parts.

Thermostat for Yamaha Outboard 9.9–250HP 2-Stroke & HPDI | Replaces 6E5-12411-30 / 688-12411-11