{"product_id":"hero-genuine-piston-ring-set-os-0-25-glamour-super-splendor-13021ktc305s","title":"Hero Genuine Piston Ring Set O\/S 0.25 for Glamour, Glamour FI \u0026 Super Splendor | Kit Ring Piston Over Size 0.25 \/ Engine Ring Set | 13021KTC305S","description":"\u003ch2\u003eHero Genuine Piston Ring Set O\/S 0.25 for Glamour, Glamour FI \u0026amp; Super Splendor | Kit Ring Piston Over Size 0.25 \/ Engine Ring Set | 13021KTC305S\u003c\/h2\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eRestore compression, oil control, and combustion sealing in a rebored engine with the genuine Hero \u003cstrong\u003eKIT, RING PISTON (O\/S 0.25)\u003c\/strong\u003e, part number \u003cstrong\u003e13021KTC305S\u003c\/strong\u003e. Hero’s official store lists this exact SKU as \u003cstrong\u003eKIT, RING PISTON (O\/S 0.25)\u003c\/strong\u003e for \u003cstrong\u003eGlamour\u003c\/strong\u003e and \u003cstrong\u003eSuper Splendor\u003c\/strong\u003e, with visible MRP around \u003cstrong\u003e₹248\u003c\/strong\u003e and quantity \u003cstrong\u003e1 unit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is the correct replacement when the cylinder has been rebored to \u003cstrong\u003e0.25 oversize\u003c\/strong\u003e and the engine needs matching oversize piston rings. It is not the same as the standard bore ring set. A genuine oversize ring kit matters because ring tension, metallurgy, end-gap consistency, and groove fit directly affect compression, oil control, engine smoothness, and long-term durability.\u003c\/p\u003e\n\u003cp\u003eThis listing is intentionally customer-focused and conservative for return prevention. The strongest official fitment is \u003cstrong\u003eHero Glamour\u003c\/strong\u003e and \u003cstrong\u003eHero Super Splendor\u003c\/strong\u003e. Seller references also support older \u003cstrong\u003eGlamour FI \/ Glamour Fuel Injection\u003c\/strong\u003e applications for this same SKU.\u003c\/p\u003e\n\u003ch3\u003eWhat This Product Is\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOfficial product identity:\u003c\/strong\u003e \u003cstrong\u003eKIT, RING PISTON (O\/S 0.25)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCustomer-friendly names:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003episton ring set oversize 0.25\u003c\/li\u003e\n\u003cli\u003ering set piston O\/S .25\u003c\/li\u003e\n\u003cli\u003e0.25 over size piston ring kit\u003c\/li\u003e\n\u003cli\u003eengine ring set 0.25\u003c\/li\u003e\n\u003cli\u003erebore piston ring kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Hero part number \u003cstrong\u003e13021KTC305S\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOfficially listed by Hero as \u003cstrong\u003eKIT, RING PISTON (O\/S 0.25)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOfficial Hero fitment includes \u003cstrong\u003eGlamour\u003c\/strong\u003e and \u003cstrong\u003eSuper Splendor\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eThis is an \u003cstrong\u003eoversize 0.25\u003c\/strong\u003e ring kit for rebored engines, not the STD ring set\u003c\/li\u003e\n\u003cli\u003eHero’s official listing shows \u003cstrong\u003e1 unit\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOfficial Hero visible price is around \u003cstrong\u003e₹248\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSeller references support older \u003cstrong\u003eGlamour FI \/ Glamour Fuel Injection\u003c\/strong\u003e applications as well\u003c\/li\u003e\n\u003cli\u003eUseful during top-end rebuild work when the cylinder is machined for 0.25 oversize rings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eConfirmed Compatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOfficially listed for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHero Glamour\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHero Super Splendor\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eStrong seller-supported dated references include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eGlamour (Nov 2014 \/ Nov 2013 \/ May 2012 \/ Apr 2011 \/ Mar 2010 \/ Nov 2008 \/ Jan 2007 \/ Jun 2005)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eGlamour FI \/ Glamour Fuel Injection (Nov 2014 \/ Nov 2013 \/ Jul 2012 \/ Apr 2011 \/ May 2010 \/ Nov 2008 \/ Jan 2007 \/ Jun 2006)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSuper Splendor (Jan 2014 \/ May 2012 \/ Jul 2010 \/ Jun 2007 \/ Jan 2006 \/ Feb 2005)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment Note \/ Return Prevention Note\u003c\/h3\u003e\n\u003cp\u003eThe safest confirmed fitment is \u003cstrong\u003eHero Glamour\u003c\/strong\u003e and \u003cstrong\u003eHero Super Splendor\u003c\/strong\u003e because that is the direct official Hero mapping for this exact SKU. This is a \u003cstrong\u003e0.25 oversize\u003c\/strong\u003e piston ring kit, so it should only be ordered when the cylinder and piston setup require O\/S 0.25 rings. Do not order it for standard-bore engines unless your machinist or mechanic has confirmed a 0.25 rebore.\u003c\/p\u003e\n\u003cp\u003eBefore ordering, compare:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eexact part number \u003cstrong\u003e13021KTC305S\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ebike model confirmation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.25 oversize\u003c\/strong\u003e ring requirement\u003c\/li\u003e\n\u003cli\u003eold piston \/ ring application or machinist-mechanic confirmation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat You Will Receive\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1 x Hero Genuine Kit, Ring Piston (O\/S 0.25)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePart number: \u003cstrong\u003e13021KTC305S\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuantity: \u003cstrong\u003e1 unit\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Hero MotoCorp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 13021KTC305S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDescription:\u003c\/strong\u003e KIT, RING PISTON (O\/S 0.25)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Fitment:\u003c\/strong\u003e Glamour, Super Splendor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon Name:\u003c\/strong\u003e Oversize 0.25 Piston Ring Set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Quantity:\u003c\/strong\u003e 1 unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMRP:\u003c\/strong\u003e around ₹248\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eObserved seller prices:\u003c\/strong\u003e around ₹248 to ₹255 depending on seller\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Note\u003c\/h3\u003e\n\u003cp\u003eThis part should be installed only after checking piston groove condition, ring end gap, cylinder wear, and actual bore size after machining. Professional top-end service is recommended. If the engine has been rebored, always confirm that the piston and ring size match the final bore correctly before installation.\u003c\/p\u003e\n\u003ch3\u003eBuyer-Focused FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1. What is 13021KTC305S?\u003c\/strong\u003e\u003cbr\u003eIt is the genuine Hero \u003cstrong\u003eKIT, RING PISTON (O\/S 0.25)\u003c\/strong\u003e, commonly searched as the 0.25 oversize piston ring set.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2. Which bikes does it fit?\u003c\/strong\u003e\u003cbr\u003eThe strongest official fitment is \u003cstrong\u003eHero Glamour\u003c\/strong\u003e and \u003cstrong\u003eHero Super Splendor\u003c\/strong\u003e. Seller references also support older \u003cstrong\u003eGlamour FI\u003c\/strong\u003e applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3. Is this genuine Hero?\u003c\/strong\u003e\u003cbr\u003eYes. This exact SKU appears on Hero’s official store.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4. What does O\/S 0.25 mean?\u003c\/strong\u003e\u003cbr\u003eIt means \u003cstrong\u003eoversize 0.25\u003c\/strong\u003e, used for engines that have been rebored and need matching 0.25 oversize piston rings instead of STD rings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ5. Can I use this in a standard-bore engine?\u003c\/strong\u003e\u003cbr\u003eNo. This listing is for the \u003cstrong\u003e0.25 oversize\u003c\/strong\u003e ring kit. Standard-bore engines need the STD ring set, not this oversize version.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ6. What is the current price?\u003c\/strong\u003e\u003cbr\u003eThe official Hero listing shows around \u003cstrong\u003e₹248\u003c\/strong\u003e. Seller references I found are also in the same approximate range.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ7. Is it sold as one kit?\u003c\/strong\u003e\u003cbr\u003eYes. The official Hero listing shows \u003cstrong\u003e1 unit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ8. How do I confirm before ordering?\u003c\/strong\u003e\u003cbr\u003eMatch the exact part number \u003cstrong\u003e13021KTC305S\u003c\/strong\u003e and confirm your bike application plus \u003cstrong\u003e0.25 oversize\u003c\/strong\u003e requirement before purchase.\u003c\/p\u003e","brand":"Hero","offers":[{"title":"Default Title","offer_id":51378271093031,"sku":"13021KTC305S","price":235.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/7447\/0183\/files\/Hero_Genuine_Piston_Ring_Set_O_S_0.25_for_Glamour_Glamour_FI_Super_Splendor_Kit_Ring_Piston_Over_Size_0.25_Engine_Ring_Set_13021KTC305S.avif?v=1779211308","url":"https:\/\/underthehood.co.in\/products\/hero-genuine-piston-ring-set-os-0-25-glamour-super-splendor-13021ktc305s","provider":"UNDER THE HOOD","version":"1.0","type":"link"}