The Royal Enfield Genuine Crankcase Stud (Part No. 500104/D) is a critical high-tensile engine fastener designed for the Unit Construction Engine (UCE) platform. This stud bolt plays a vital role in tightly clamping the left and right halves of the crankcase (C-case) together, ensuring a flawless central gasket seal.
this engine hardware is built to maintain uniform clamping force across the engine blocks. Using a genuine 500104/D stud is crucial during engine overhauls or minor crankcase repairs; generic or low-tensile aftermarket bolts can easily stretch, warp, or strip the aluminum casing threads, leading to severe internal engine oil leaks and pressure loss.
Key Features:
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100% Genuine Part: Authentic Royal Enfield engine hardware as verified by the official factory label in image_171124.png.
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High-Tensile Integrity: Engineered from hardened alloy steel to withstand extreme torque specs without stretching or breaking.
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Thermal Shock Resistant: Specifically treated to expand and contract at a rate compatible with the aluminum engine block, preventing loosening over time.
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Anti-Corrosive Coating: Features an industrial factory finish that resists rust and seizing from road grime and engine heat.
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Flawless Thread Pitch: Precision-milled threading ensures a smooth, gap-free lock directly into the crankcase threads.
Technical Specifications:
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Brand: Royal Enfield Genuine
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Part Number: 500104/D
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Component: Crankcase (C-Case) Joint Stud Bolt
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Material: Hardened High-Tensile Alloy Steel
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Country of Origin: India
Motorcycle Compatibility
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Royal Enfield Classic 350 / 500 (All UCE Variants)
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Royal Enfield Bullet 350 / 500 / ES (Twinspark UCE Models)
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Royal Enfield Thunderbird 350 / 500 / X
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Royal Enfield Electra 350 (UCE)









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