Product Description
The Genuine Honda Cylinder Head Cover Gasket (commonly known as the Tappet Cover Gasket) is a vital sealing component for your scooter’s engine. This gasket is designed to create an airtight and oil-tight seal between the cylinder head and the top cover, ensuring that the engine oil circulating for lubrication stays inside the engine and away from external components.
Precision-manufactured by Honda Motor India, the 12391K0PD01 is made from a high-quality, heat-resistant elastomer compound. Unlike generic paper or low-grade rubber gaskets, this OEM component is engineered to withstand the extreme thermal cycling of the BS6 PGM-FI engine. It maintains its elasticity over time, preventing common issues like oil sweating or heavy leaks that can lead to engine overheating and dirt accumulation on the cooling fins.
Key Features
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OEM Honda Reliability: A 100% genuine part (Part No: 12391K0PD01), specifically molded to fit the contours of the Activa 6G head cover.
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Superior Oil Seal: Engineered with a specialized profile to ensure a uniform seal even under high engine internal pressures.
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Heat Resistance: Formulated to resist hardening or cracking despite constant exposure to high engine temperatures.
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Chemical Durability: Resistant to modern synthetic engine oils and cleaning solvents, ensuring a long service life.
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Authentic Packaging: Shipped in original Honda Genuine Parts & Accessories packaging with a verifiable security hologram.
Product Details
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Brand: Honda Genuine Parts
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Part Number: 12391K0PD01
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Product Name: GASKET COMP, CYLINDER HEAD (Head Cover Gasket)
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Material: High-Grade Heat Resistant Rubber
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Manufactured Date: January 2026
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Quantity: 1 Number(s)
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Country of Origin: India
Compatibility
This gasket is designed for the new-generation “Global Engine” platform:
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Honda Activa 6G
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Honda Activa 125 BS6
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Honda Dio BS6 / Dio 125 (Note: This part is for the BS6 models. If you have an older Activa 3G/4G/5G, you will likely need the 12391GW0000 instead, as the head shape is different).










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