{"product_id":"hero-genuine-rr-unit-regulator-rectifier-hf-deluxe-passion-pro-splendor-31600kwa831s","title":"Hero Genuine RR Unit \/ Regulator Rectifier for HF Deluxe, Passion Pro, Splendor NXG, Splendor Plus \u0026 iSmart - 31600KWA831S","description":"\u003ch2\u003eHero Genuine RR Unit \/ Regulator Rectifier - 31600KWA831S\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eHero Genuine 31600KWA831S\u003c\/strong\u003e is the OEM \u003cstrong\u003eRR unit \/ regulator rectifier\u003c\/strong\u003e used on select Hero commuter motorcycles including HF Deluxe, Passion Pro, Splendor NXG, Splendor Plus and Splendor iSmart applications. Buyers also search for this part as \u003cem\u003eRR unit\u003c\/em\u003e, \u003cem\u003ereg rec\u003c\/em\u003e, \u003cem\u003eregulator rectifier\u003c\/em\u003e, \u003cem\u003ebattery charging unit\u003c\/em\u003e, or \u003cem\u003echarging rectifier\u003c\/em\u003e. This component converts AC current from the stator into usable DC current and helps control charging voltage so the battery and electrical system work properly.\u003c\/p\u003e\n\n\u003cp\u003eIf a bike is showing weak charging, battery drain, repeated bulb failure, erratic electrical performance, or overcharging symptoms, the regulator rectifier is one of the first parts that needs to be checked. Replacing a failed RR unit with the correct genuine Hero part helps restore reliable charging and avoids the poor fit, unstable output, and short life often seen with low-quality aftermarket electrical parts.\u003c\/p\u003e\n\n\u003cp\u003eHero’s public product listing for \u003cstrong\u003e31600KWA831S\u003c\/strong\u003e directly markets this part as a genuine RR unit \/ regulator rectifier and states compatibility with \u003cstrong\u003eHF Deluxe, Passion Pro, Splendor NXG, Splendor Plus, and iSmart\u003c\/strong\u003e. Supporting dealer references expand the visible model list to include multiple year-coded variants such as HF Deluxe Black, HF Deluxe Eco, Passion Pro, Passion Pro TR, Splendor NXG and Splendor iSmart. Because Hero commuter models changed across years and wiring layouts, buyers should still match the old part number and connector pattern before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eWhat This Product Is\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRR unit\u003c\/li\u003e\n  \u003cli\u003eRegulator rectifier\u003c\/li\u003e\n  \u003cli\u003eReg rec\u003c\/li\u003e\n  \u003cli\u003eBattery charging unit\u003c\/li\u003e\n  \u003cli\u003eCharging rectifier for Hero motorcycles\u003c\/li\u003e\n  \u003cli\u003eGenuine OEM Hero electrical charging component\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eVerified Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHero HF Deluxe\u003c\/li\u003e\n  \u003cli\u003eHero Passion Pro\u003c\/li\u003e\n  \u003cli\u003eHero Splendor NXG\u003c\/li\u003e\n  \u003cli\u003eHero Splendor Plus\u003c\/li\u003e\n  \u003cli\u003eHero Splendor iSmart\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSupporting seller-level public fitment references also show:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHF Deluxe Black (Sep 2014 \/ May 2015)\u003c\/li\u003e\n  \u003cli\u003eHF Deluxe Eco (Nov 2013)\u003c\/li\u003e\n  \u003cli\u003eHF Deluxe formerly CD Deluxe (Mar 2010)\u003c\/li\u003e\n  \u003cli\u003ePassion Pro (Mar 2010 \/ May 2012 \/ Jan 2014)\u003c\/li\u003e\n  \u003cli\u003ePassion Pro Special Edition (Oct 2010)\u003c\/li\u003e\n  \u003cli\u003ePassion Pro TR (Aug 2014)\u003c\/li\u003e\n  \u003cli\u003eSplendor NXG (Mar 2010 \/ Apr 2012)\u003c\/li\u003e\n  \u003cli\u003eSplendor iSmart (Dec 2013 \/ May 2014)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Fitment \/ Compatibility Note\u003c\/h3\u003e\n\u003cp\u003eThis is an electrical fitment-sensitive part. Please do not order only by bike name. Match the existing part number, coupler type, pin layout, mounting pattern, and wiring side before purchase. Some Hero commuter models look similar externally but use different RR units across years and electrical revisions.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Buyers Need It\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores correct battery charging when the old RR unit fails\u003c\/li\u003e\n  \u003cli\u003eHelps protect the battery and electrical system from unstable voltage\u003c\/li\u003e\n  \u003cli\u003eUseful when the bike is not charging properly or is overcharging\u003c\/li\u003e\n  \u003cli\u003eImportant for consistent headlight, indicator, horn, and self-start electrical performance\u003c\/li\u003e\n  \u003cli\u003eSafer long-term choice than uncertain low-grade aftermarket electrical parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eGenuine Hero OEM part\u003c\/li\u003e\n  \u003cli\u003ePart number: 31600KWA831S\u003c\/li\u003e\n  \u003cli\u003eRegulates and rectifies charging output from the stator\u003c\/li\u003e\n  \u003cli\u003eSupports stable DC output for battery charging and electrical reliability\u003c\/li\u003e\n  \u003cli\u003eBuilt for direct replacement on supported Hero applications\u003c\/li\u003e\n  \u003cli\u003eSingle unit supply\u003c\/li\u003e\n  \u003cli\u003ePublic Hero marketplace MRP: ₹1,220\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Symptoms \/ Replacement Reasons\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBattery not charging properly\u003c\/li\u003e\n  \u003cli\u003eBattery drains repeatedly even after charging\u003c\/li\u003e\n  \u003cli\u003eOvercharging or battery boiling issues\u003c\/li\u003e\n  \u003cli\u003eHeadlight or indicators fluctuate with RPM\u003c\/li\u003e\n  \u003cli\u003eFrequent bulb failure due to unstable voltage\u003c\/li\u003e\n  \u003cli\u003eWeak or inconsistent electrical performance\u003c\/li\u003e\n  \u003cli\u003eBike starts only after external charging but discharge returns quickly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Genuine Matters\u003c\/h3\u003e\n\u003cp\u003eThe regulator rectifier is a critical electrical protection and charging component. Poor-quality copies may physically fit but can still deliver unstable charging output, shorten battery life, damage bulbs, or create repeat electrical complaints. A genuine Hero RR unit is the safer choice when you want proper connector fit, correct charging behaviour, and long-term reliability on the original wiring system.\u003c\/p\u003e\n\n\u003ch3\u003eFitment \/ Return Prevention Note\u003c\/h3\u003e\n\u003cp\u003ePlease verify all of the following before ordering: old part number, coupler style, number of pins, mounting bracket shape, and exact bike model\/year. This product is not a universal RR unit. If your motorcycle has had wiring modification or local electrical conversion work, match the removed part first.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Hero Genuine Regulator Rectifier \/ RR Unit - 31600KWA831S\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Details\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: Hero Genuine Parts\u003c\/li\u003e\n  \u003cli\u003ePart Number: 31600KWA831S\u003c\/li\u003e\n  \u003cli\u003eProduct Name: REG. RECT. COMP. \/ RR Unit \/ Regulator Rectifier\u003c\/li\u003e\n  \u003cli\u003eCategory: Electrical \/ Charging System\u003c\/li\u003e\n  \u003cli\u003eNet Quantity: 1 Unit\u003c\/li\u003e\n  \u003cli\u003eMRP seen on public Hero marketplace: ₹1,220\u003c\/li\u003e\n  \u003cli\u003eManufacturer: Hero MotoCorp\u003c\/li\u003e\n  \u003cli\u003eCountry of Origin: India\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1. What does this RR unit do?\u003c\/strong\u003e\u003cbr\u003e\nIt converts AC current from the stator into DC current and regulates voltage so the battery charges properly and the electrical system stays stable.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ2. Is 31600KWA831S a genuine Hero part?\u003c\/strong\u003e\u003cbr\u003e\nYes. This part is publicly listed and sold as a Hero Genuine RR unit \/ regulator rectifier.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ3. Which bikes does this fit?\u003c\/strong\u003e\u003cbr\u003e\nHero’s public listing supports HF Deluxe, Passion Pro, Splendor NXG, Splendor Plus and Splendor iSmart. Seller references also show several year-coded variants within these families.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ4. Will it fit every Splendor model?\u003c\/strong\u003e\u003cbr\u003e\nNo. Do not assume universal Splendor fitment. Match part number and coupler pattern before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ5. What are common signs of a bad regulator rectifier?\u003c\/strong\u003e\u003cbr\u003e\nCommon signs include battery not charging, repeated battery discharge, voltage fluctuation, frequent bulb failure, and unstable electrical output.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ6. Can I use a local aftermarket RR unit instead?\u003c\/strong\u003e\u003cbr\u003e\nMany local electrical parts work inconsistently. For a charging-system part, genuine fit and voltage control matter a lot, so OEM is usually the safer choice.\u003c\/p\u003e","brand":"Hero","offers":[{"title":"Default Title","offer_id":51288023695655,"sku":"31600KWA831S","price":1190.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/Hero_Genuine_RR_Unit_Regulator_Rectifier_for_HF_Deluxe_Passion_Pro_Splendor_NXG_Splendor_Plus_iSmart_-_31600KWA831S.avif?v=1776591662","url":"https:\/\/underthehood.co.in\/products\/hero-genuine-rr-unit-regulator-rectifier-hf-deluxe-passion-pro-splendor-31600kwa831s","provider":"UNDER THE HOOD","version":"1.0","type":"link"}