The Royal Enfield Genuine Suppressor Cap M-14 (Part No. RAC00158/A) is a factory-original, high-insulation electrical component engineered specifically to bridge the high-tension (HT) ignition lead wire to the spark plug terminal. Operating directly above the cylinder head engine bay, this specialized right-angle cap delivers up to 30,000 volts of clean spark energy while suppressing harmful electromagnetic interference (EMI) and radio frequency interference (RFI) that could disrupt the motorcycle’s electronic control unit (ECU) and digital sensors.
As showcased in the clean product profile in image_0f4e08.png and verified by the official Royal Enfield packaging label in image_0efc82.png, this OEM part features a rugged, heat-resistant, injection-molded composite body combined with an integrated rubber sealing boot system. Choosing a genuine factory suppressor cap ensures an exact fit over M14-thread spark plug tips, maintains absolute waterproof protection during monsoon rides, and guarantees smooth, misfire-free engine combustion performance.
Key Features:
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100% Royal Enfield Genuine Spares: Factory-original ignition component manufactured to meet strict OEM resistance and insulation standards.
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Advanced Electromagnetic (EMI/RFI) Suppression: Built-in internal resistor elements cleanly isolate intense electrical noise, preventing sensor signal distortion on modern digital instrument clusters and EFI systems.
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Heavy-Duty Weatherproof Sealing: Equipped with tightly molded rubber end-collars, as highlighted in image_0f4e08.png, that compress over the spark plug insulator and HT cord to completely seal out water, road slush, and dust.
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90-Degree Angular Form Factor: The precise right-angle design allows clean, low-profile routing of the ignition cable beneath the fuel tank, staying completely clear of hot cooling fins.
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Vibration-Resistant Internal Terminal Snap: Outfitted with a high-retention inner spring-clip that snaps firmly onto the spark plug terminal, preventing it from shaking loose under aggressive engine pulses.
Technical Specifications:
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Brand: Royal Enfield Genuine Parts
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Part Number: RAC00158/A
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Component Type: Suppressor Cap M-14 / Spark Plug Cap
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Configuration: 90-Degree Angled Boot
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Price: Retails at a maximum retail price (MRP) of ₹92.00, as officially documented on the factory package label in image_0efc82.png.
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Country of Origin: India
Motorcycle Compatibility
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Royal Enfield Hunter 350: Fits all variants (Retro, Metro Dapper, and Metro Rebel series) utilizing the J-Series 349cc powerplant.
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Royal Enfield Meteor 350: Standard fitment across Fireball, Stellar, Supernova, and Aurora models.
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Royal Enfield Classic 350 (Next-Gen J-Series): Fully compatible with modern Reborn Classic models (Dark, Signals, Halcyon, and Chrome series).
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Royal Enfield Bullet 350 (Next-Gen J-Series): Fits all newer generation Bullet 350 platforms manufactured with the updated overhead-cam motor layout.











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