Product Description
Ensure a bone-dry gearbox and smooth operation with the Siemen Gear Box Gasket. This precision-cut gasket is designed to fit the outer cover of the traditional 4-speed gearbox found on vintage Royal Enfield motorcycles.
Constructed from high-grade compressed fiber material, it offers excellent resistance to gear oil, high temperatures, and mechanical compression. The gasket features accurate bolt-hole alignment to ensure a perfect fit without the need for excessive liquid sealant, preserving the authentic look and mechanical integrity of your classic machine. Whether you are performing a routine oil change or a full gearbox overhaul, this Siemen gasket provides the reliable seal needed for the legendary “thump.”
Key Features:
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Oil Resistant Material: Specialized fiber construction that won’t degrade when exposed to heavy-duty gear oils.
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Precision Fit: Die-cut to exact OEM specifications for the old-model 4-speed gear casing.
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Leak Prevention: Provides a robust barrier against oil seepage, keeping your engine and garage floor clean.
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High Durability: Engineered to maintain its seal under the constant vibration and thermal cycles of a cast iron engine.
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Easy Installation: Clean edges and accurate hole placement allow for a straightforward replacement process.
Technical Specifications:
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Brand: Siemen Gaskets (by SKAS Autotech Pvt. Ltd.)
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Part Code: SG EB-013
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Application: Gear Box Outer Cover
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Suitable For: Bullet 3.5 HP (Old Model Cast Iron)
Bike Compatibility
Compatible with all vintage Royal Enfield models featuring the 4-speed (Right-Shift) gearbox:
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Royal Enfield Standard 350 (Cast Iron)
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Royal Enfield Standard 500 (Cast Iron)
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Royal Enfield Machismo 350
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Royal Enfield Electra (Early 4-speed models)









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