# 63P-12414-00 Yamaha Gasket Cover | Genuine OEM Yamaha Outboard Part

🔧 Product Description

  

Genuine Yamaha Thermostat Cover Gasket - Part Number: 63P-12414-00-00

  

A genuine Yamaha OEM thermostat cover gasket used on Yamaha F150-family four-stroke cooling systems. This gasket seals the thermostat cover and cross-references with Sierra and Recmar aftermarket replacements.

  

⚙️ Key Features

  

• Genuine Yamaha OEM thermostat cover gasket

• Correct Yamaha part number 63P-12414-00-00

• Thermostat cover sealing gasket

• Used on Yamaha F150 and related four-stroke cooling systems

• Cross-references with Sierra 18-99127 and Recmar REC63P-12414-00

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 63P-12414-00-00 Yamaha thermostat cover gasket reference

• 63P-12414-00 short Yamaha gasket cover format

• 67F-12411-01-00 related thermostat reference used in thermostat-and-gasket service kits

• 67F-12411-00-00 related earlier thermostat reference

  

OEM / Related Numbers:

  

• 63P-12414-00-00

• 63P-12414-00

• 63P124140000

• 63P1241400

• 67F-12411-01-00 related thermostat kit reference

• 67F-12411-00-00 related thermostat kit reference

  

Aftermarket / Verified Equivalents:

  

• Sierra: 18-99127

• Recmar: REC63P-12414-00

• Aftermarket reference: 63P-12414-00

• Aftermarket thermostat-and-gasket kit reference: 67F-12411-01-00 / 63P-12414-00-00

• Yamaha F150 thermostat gasket replacement family

  

🚤 Compatibility

  

Commonly used on:

  

• Yamaha F150 four-stroke thermostat cover assemblies

• Yamaha 63P-series cooling systems using 63P-12414-00

  

Typically suits:

  

• Engine models:

• Yamaha F150AET - approximately 2004-2013

• Yamaha F150BET - approximately 2011-2014

• Yamaha F150FET - approximately 2015-2017

• Yamaha F150L / F150X applications around 2014 onward

• Yamaha LF150 four-stroke thermostat cover applications where 63P-12414-00 is specified

• Yamaha F150A / F150B / F150D / F150F cooling systems using this thermostat cover gasket

  

• HP Range: commonly 150HP where specified

• Engine Type: Yamaha inline 4-cylinder four-stroke outboard cooling system

• Year Range: approximately 2004 onward depending on model and market

• Component Type: Thermostat cover gasket

  

🔌 Function

  

The gasket seals the thermostat cover to prevent cooling-water leakage and maintain correct flow through the thermostat housing.

  

Common signs of failure or service need:

  

• Water leak around thermostat cover

• Salt or corrosion around thermostat housing

• Gasket damaged during thermostat service

• Overheating after cooling-system work

• Flattened, torn or hardened gasket

• Required replacement whenever thermostat cover is removed

  

📦 Condition

  

• Genuine Yamaha part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 15.35 AUD
- **Vendor:** Yamaha Pitmans Marine
- **Tags:** Yamaha Marine Parts | Outboard Engine Parts & Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 15.35 AUD | In stock |

## Images

- 63P-12414-00 Yamaha Gasket Cover | Genuine OEM Yamaha Outboard Part
- 63P-12414-00 Yamaha Gasket Cover | Genuine OEM Yamaha Outboard Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/63p-12414-00-gasket-cover)
> Updated: 2026-07-18