The Honda Genuine Crankshaft Oil Seal (Part No. 91201-KWP-D01) is a critical internal engine sealing component engineered explicitly for Honda’s highly successful 100cc and 110cc automatic scooter engine platforms. Positioned firmly on the right-hand (RH) side of the engine block near the cooling fan and stator assembly, this seal isolates the fast-spinning crankshaft journal. Its job is to keep pressurized engine oil contained inside the crankcase while keeping out external dirt, dust, and moisture.
As verified by the official packaging barcode label in image_49bf23.png and shown in the product profile in image_49bec9.png, this seal is molded from a high-grade fluorocarbon elastomer (Viton/NBR compound). It features a built-in garter spring that applies uniform radial pressure around the moving shaft. Utilizing this authentic Honda replacement part guarantees an absolute leak-free fit and high thermal tolerance, completely avoiding drop-offs in oil pressure, smoky exhausts, or stator fouling common with cheap generic rubber seals.
Key Features:
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100% Honda Genuine Power Unit Spares: Factory-original internal engine oil seal as verified by the OEM label details in image_49bf23.png.
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High-Grade Fluorocarbon Elastomer: Formulated to withstand constant exposure to searing-hot engine oil, chemical additives, and high-RPM friction without hardening or cracking.
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Precision Metal Garter Spring: Features an integrated internal spring tensioner that ensures a tight, constant grip on the crankshaft even during rapid acceleration or cold starts.
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Dual-Lip Protective Design: Built with a primary sealing lip to lock oil inside the crankcase and a secondary dust lip to deflect road dirt away from the inner engine.
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Exact Dimensional Accuracy: Machined to strict factory millimeter specifications ( configuration) for a seamless, secure press-fit installation into the right-side engine casing.
Technical Specifications:
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Brand: Honda Genuine Parts
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Part Number: 91201-KWP-D01 (Also fits sub-codes like 91201KWPD01)
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Component: Crankshaft Oil Seal (Right-Hand Side)
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Dimensions: (Note: Standard industry blueprint size check for factory cross-references)
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Material: Premium Heat-Resistant Synthetic Rubber / Viton Compound with Steel Spring
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Country of Origin: India
Scooter Compatibility
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Honda Activa 110cc Series: Activa 3G, Activa 4G, Activa 5G, and Activa 6G (H-Smart variants included).
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Honda Dio 110cc: All generations (Carbureted and Fuel-Injected/BS6 models).
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Honda Aviator 110cc: All model years featuring the standard 110cc engine block.
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Honda Activa i: 110cc lightweight scooter variants.












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