Honda Grom Valve Stem Seal 12209-GB4-681 | 2014-2020

OEM Honda Valve Stem Seal - Part Number 12209-GB4-681

Genuine Honda OEM valve stem seal designed for 2014-2020 Honda Grom 125 models. This precision-molded seal prevents oil from entering the combustion chamber through the valve guide, ensuring clean combustion and preventing oil consumption.

Key Features:

• OEM Honda part number 12209-GB4-681
• High-temperature resistant seal material
• Precision-molded for exact valve stem fit
• Essential for cylinder head rebuilds and valve service
• Prevents oil consumption and blue smoke
• Sold individually - order quantity needed per application

Fitment:

• 2014-2020 Honda Grom 125 (MSX125)
• Compatible with both original and SF models

Application Note:

Valve stem seals are used one per valve. Calculate the total quantity needed based on your engine's valve count (typically 2 intake and 2 exhaust valves). Always replace valve stem seals during cylinder head service or valve jobs to prevent oil leakage.

Why OEM Quality Matters:

Valve stem seals operate in extreme heat and must maintain precise sealing under constant valve movement. Honda engineers these seals with specialized rubber compounds that resist hardening and cracking at high temperatures. Using genuine OEM valve stem seals ensures proper oil control, prevents premature seal failure, and maintains clean combustion for optimal engine performance and longevity.

Installation Note:

Professional installation recommended. Valve stem seal replacement requires proper installation tools to avoid damage during installation. Replace seals whenever performing valve guide service or cylinder head work.