Gasket Thermostat - Yamaha 300 / 350 HP 4 - Stroke (2009, 2021) OEM# 6AW-12427-00-00 | WSM 541-46

Gasket Thermostat Yamaha 300 / 350 Hp 4-Stroke 07-21 OEM# 6AW-12427-00-00

This WSM gasket thermostat is a quality aftermarket replacement part designed for Yamaha 8 Cyl 4 Stroke 5.3L 350 and 1 other compatible model.

It replaces selected OEM reference numbers including 6AW-12427-00-00 and is suitable for service, repair and rebuild work.

Key Features

• Quality replacement gasket designed for dependable sealing performance
• Ideal for service, repair and engine rebuild work
• Manufactured for fit, durability and reliable installation
• Compatible with 2 listed fitments
• Replaces selected OEM reference numbers listed below

Product Details

• Brand: WSM
• WSM Part Number: 541-46
• Product: Gasket Thermostat
• OEM Reference: 6AW-12427-00-00
• Application: Yamaha 8 Cyl 4 Stroke 5.3L 350 and 1 other compatible model

Product Fitment

This part is suitable for the following models:

• Yamaha 8 Cyl 4 Stroke 5.3L 350 – 2007-2009
• Yamaha – 2007-2021

Why Buy WSM

WSM is a trusted manufacturer of aftermarket marine and powersports parts, known for dependable quality, strong fitment coverage and workshop-ready replacement components.

You May Also Need

Browse related parts for compatible models:

• Rectifier / Regulator Yamaha 300 - 350 Hp 4-Stroke 07-19 OEM# 6AW-81960-00-00 – 365-1980
• Piston Clips Yamaha 150 - 350 Hp 4-Stroke 11-22 OEM# 63P-11634-00-00 – 400-325
• O-Ring Throttle Body Mercury / Mariner / Yamaha 115 Hp 4-Stroke 00-11 OEM# 881437 – 527-61
• Gasket Crankcase Yamaha 200 - 350 Hp 4-Stroke 05-21 OEM# 90430-05002-00 – 555-126

Please use the fitment guide, OEM references and images to confirm this is the correct part before ordering.