{"product_id":"hero-standard-piston-hf-100-hf-deluxe-splendor-passion-pro-13101aaf00099s","title":"Hero Genuine Standard Piston for HF 100, HF Deluxe, HF Dawn, Splendor Plus, Splendor Pro, Splendor NXG \u0026 Passion Pro | Piston Only | 13101AAF00099S","description":"\u003ch2\u003eHero Genuine Standard-Size Piston – 13101AAF00099S\u003c\/h2\u003e\n\n\u003cp\u003eRestore the specified piston and cylinder relationship in compatible Hero commuter-motorcycle engines with the \u003cstrong\u003eHero Genuine Piston\u003c\/strong\u003e, part number \u003cstrong\u003e13101AAF00099S\u003c\/strong\u003e. This is the standard-size piston used in compatible Hero HF 100, HF Deluxe, HF Dawn, Splendor Plus, Splendor Pro, Splendor NXG, Splendor iSmart and Passion Pro engine applications.\u003c\/p\u003e\n\n\u003cp\u003eThe piston moves inside the cylinder bore and receives combustion force above its crown. It transfers this force through the piston pin and connecting rod to the crankshaft. Its ring grooves support the piston rings responsible for combustion sealing, oil control and heat transfer.\u003c\/p\u003e\n\n\u003cp\u003eA worn, scored, cracked, seized, overheated or dimensionally damaged piston can contribute to low compression, piston slap, excessive engine-oil consumption, blue exhaust smoke, loss of power, abnormal engine noise or complete engine failure. The piston must never be replaced without measuring the cylinder bore and inspecting the rings, piston pin, connecting rod and lubrication system.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThis product is one standard-size bare piston only.\u003c\/strong\u003e It is not a complete piston kit. The piston ring set, piston pin, piston-pin clips, cylinder block, connecting rod, crankshaft and gaskets are separately catalogued.\u003c\/p\u003e\n\n\u003ch3\u003eWhat This Product Is\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHero Genuine standard-size engine piston\u003c\/li\u003e\n\u003cli\u003eOfficial description: \u003cstrong\u003ePiston\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eHero retail part number: \u003cstrong\u003e13101AAF00099S\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCatalogue-format part number: \u003cstrong\u003e13101-AAF-00099\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCommon buyer names: standard piston, engine piston, piston STD and bare piston\u003c\/li\u003e\n\u003cli\u003eEngine location: cylinder bore and crankshaft\/connecting-rod assembly\u003c\/li\u003e\n\u003cli\u003eSize specification: standard \/ STD\u003c\/li\u003e\n\u003cli\u003eCatalogue quantity: one piston per compatible engine\u003c\/li\u003e\n\u003cli\u003eSupply form: one manufacturer-packed bare piston\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Hero internal-engine component\u003c\/li\u003e\n\u003cli\u003eStandard-size specification for compatible original-bore applications\u003c\/li\u003e\n\u003cli\u003eDesigned for the matching AAF-series piston ring, pin and cylinder arrangement\u003c\/li\u003e\n\u003cli\u003eTransfers combustion force through the piston pin and connecting rod\u003c\/li\u003e\n\u003cli\u003eMachined ring grooves for the specified matching piston ring set\u003c\/li\u003e\n\u003cli\u003eSuitable replacement when the original matching piston is worn, damaged or outside service limits\u003c\/li\u003e\n\u003cli\u003eExact OEM part-number matching reduces standard-versus-oversize ordering errors\u003c\/li\u003e\n\u003cli\u003eBetter fitment confidence than choosing a piston only by visual appearance\u003c\/li\u003e\n\u003cli\u003eOne bare standard piston supplied\u003c\/li\u003e\n\u003cli\u003eCurrent Hero MRP reference: ₹410 inclusive of taxes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConfirmed Compatibility\u003c\/h3\u003e\n\n\u003ch4\u003eExact Model and Catalogue References\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHero Splendor iSmart (May, 2014)\u003c\/li\u003e\n\u003cli\u003eHero Splendor Pro FE (Aug, 2014)\u003c\/li\u003e\n\u003cli\u003eHero Splendor Pro Classic (Sep, 2014)\u003c\/li\u003e\n\u003cli\u003eHero HF Deluxe Black (Sep, 2014)\u003c\/li\u003e\n\u003cli\u003eHero HF Deluxe (Apr, 2015)\u003c\/li\u003e\n\u003cli\u003eHero HF Deluxe Eco (May, 2015)\u003c\/li\u003e\n\u003cli\u003eHero HF Deluxe Black (May, 2015)\u003c\/li\u003e\n\u003cli\u003eHero Passion Pro (Jun, 2015)\u003c\/li\u003e\n\u003cli\u003eHero Splendor Pro (Oct, 2015)\u003c\/li\u003e\n\u003cli\u003eHero Splendor Plus (Mar, 2015)\u003c\/li\u003e\n\u003cli\u003eHero Splendor Plus (Dec, 2015)\u003c\/li\u003e\n\u003cli\u003eHero HF Deluxe i3S (Jan, 2020)\u003c\/li\u003e\n\u003cli\u003eHero HF Deluxe (Dec, 2022)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eOfficial Hero Model-Family Applicability\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eHero HF 100 — only engine generations catalogued with 13101AAF00099S\u003c\/li\u003e\n\u003cli\u003eHero HF Deluxe — compatible generations using 13101-AAF-00099\u003c\/li\u003e\n\u003cli\u003eHero HF Dawn — only exact engine applications listing this piston\u003c\/li\u003e\n\u003cli\u003eHero Splendor Plus — compatible engine generations using this SKU\u003c\/li\u003e\n\u003cli\u003eHero Splendor Pro — compatible engine generations using this SKU\u003c\/li\u003e\n\u003cli\u003eHero Splendor NXG — only exact engine applications listing this piston\u003c\/li\u003e\n\u003cli\u003eHero Passion Pro — compatible engine generations using this piston\u003c\/li\u003e\n\u003cli\u003eHero Splendor iSmart — confirmed May 2014 application\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eCompatibility Boundary\u003c\/h4\u003e\n\n\u003cp\u003eHero has used multiple piston, cylinder, crankshaft and connecting-rod families across motorcycles sharing similar model names. The model name alone is not sufficient to confirm fitment.\u003c\/p\u003e\n\n\u003cp\u003eNo automatic compatibility is claimed for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEvery HF 100, HF Deluxe or HF Dawn generation\u003c\/li\u003e\n\u003cli\u003eEvery Splendor, Splendor Plus, Splendor Pro or Splendor iSmart generation\u003c\/li\u003e\n\u003cli\u003eEvery Passion Pro generation\u003c\/li\u003e\n\u003cli\u003eHero Super Splendor, Passion XPro or Glamour without an exact catalogue match\u003c\/li\u003e\n\u003cli\u003eAny engine that has been rebored or fitted with an oversize piston\u003c\/li\u003e\n\u003cli\u003eAny engine whose catalogue specifies another 13101-series piston\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment Note \/ Return Prevention Note\u003c\/h3\u003e\n\n\u003cp\u003eBefore ordering, match the complete Hero part number \u003cstrong\u003e13101AAF00099S\u003c\/strong\u003e or catalogue number \u003cstrong\u003e13101-AAF-00099\u003c\/strong\u003e with the motorcycle’s chassis\/VIN-based crankshaft-and-piston catalogue.\u003c\/p\u003e\n\n\u003cp\u003eConfirm all of the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExact motorcycle model, variant and production generation\u003c\/li\u003e\n\u003cli\u003eEngine family and crankshaft assembly\u003c\/li\u003e\n\u003cli\u003eStandard-size piston requirement\u003c\/li\u003e\n\u003cli\u003eExisting piston part number or repair-size marking\u003c\/li\u003e\n\u003cli\u003eCylinder-bore diameter and service limit\u003c\/li\u003e\n\u003cli\u003eCylinder taper, ovality and scoring\u003c\/li\u003e\n\u003cli\u003ePiston-to-cylinder clearance\u003c\/li\u003e\n\u003cli\u003ePiston-ring groove condition\u003c\/li\u003e\n\u003cli\u003ePiston-pin bore condition\u003c\/li\u003e\n\u003cli\u003eConnecting-rod small-end condition\u003c\/li\u003e\n\u003cli\u003eWhether the engine has previously been rebored, sleeved or repaired\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eStandard Size Only\u003c\/h4\u003e\n\n\u003cp\u003eThis SKU is the \u003cstrong\u003estandard-size piston\u003c\/strong\u003e. Do not install it in a cylinder that has been rebored to an oversize repair dimension.\u003c\/p\u003e\n\n\u003cp\u003eThe same engine family catalogues the following repair-size pistons separately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e13102-AAF-00099\u003c\/strong\u003e — piston oversize 0.25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13103-AAF-00099\u003c\/strong\u003e — piston oversize 0.50 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13104-AAF-00099\u003c\/strong\u003e — piston oversize 0.75 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13105-AAF-00099\u003c\/strong\u003e — piston oversize 1.00 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe piston and piston ring set must use the same repair size. Select the repair size only after controlled cylinder measurement and machining assessment.\u003c\/p\u003e\n\n\u003ch4\u003eMatching Piston Ring Sets\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e13011-AAF-00099\u003c\/strong\u003e — standard piston ring set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13012-AAF-00099\u003c\/strong\u003e — ring set oversize 0.25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13013-AAF-00099\u003c\/strong\u003e — ring set oversize 0.50 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13014-AAF-00099\u003c\/strong\u003e — ring set oversize 0.75 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13015-AAF-00099\u003c\/strong\u003e — ring set oversize 1.00 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eSeparately Catalogued Related Parts\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e13111-087-000\u003c\/strong\u003e — piston pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13115-001-000\u003c\/strong\u003e — piston-pin clip, catalogue quantity two\u003c\/li\u003e\n\u003cli\u003eMatching piston ring set\u003c\/li\u003e\n\u003cli\u003eCylinder block\u003c\/li\u003e\n\u003cli\u003eConnecting rod and small-end components\u003c\/li\u003e\n\u003cli\u003eCrankshaft and connecting-rod bearings\u003c\/li\u003e\n\u003cli\u003eCylinder-head and cylinder-base gaskets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eDo not assume the piston pin, clips or rings are included with this bare piston merely because complete piston kits are available for other Hero engines.\u003c\/p\u003e\n\n\u003ch4\u003eDiagnosis Before Replacement\u003c\/h4\u003e\n\n\u003cp\u003eLow compression, blue smoke, oil consumption or engine noise can also be caused by:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWorn, tapered, oval or scored cylinder bore\u003c\/li\u003e\n\u003cli\u003eWorn or broken piston rings\u003c\/li\u003e\n\u003cli\u003eIncorrect ring end gap or ring orientation\u003c\/li\u003e\n\u003cli\u003eWorn piston pin or connecting-rod small end\u003c\/li\u003e\n\u003cli\u003eValve, valve-seat or valve-guide leakage\u003c\/li\u003e\n\u003cli\u003eValve-stem seal failure\u003c\/li\u003e\n\u003cli\u003eCylinder-head gasket leakage\u003c\/li\u003e\n\u003cli\u003eRestricted lubrication or incorrect engine oil\u003c\/li\u003e\n\u003cli\u003eOverheating, detonation or incorrect ignition\/fuelling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eReplacing only the piston will not repair an unserviceable cylinder, damaged connecting rod, worn crankshaft or leaking cylinder head.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInternal-engine return protection:\u003c\/strong\u003e Confirm the exact SKU and standard-size requirement before opening or installation. A piston showing ring installation, piston-pin marks, circlip marks, carbon, oil, scratches, measuring\/tool marks, filing, machining, heat exposure or operational use cannot be treated as an unused return.\u003c\/p\u003e\n\n\u003ch3\u003eWhat You Will Receive\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × Hero Genuine standard-size piston\u003c\/li\u003e\n\u003cli\u003ePart number: \u003cstrong\u003e13101AAF00099S\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOne manufacturer-packed bare piston\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eNot included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePiston ring set\u003c\/li\u003e\n\u003cli\u003ePiston pin\u003c\/li\u003e\n\u003cli\u003ePiston-pin clips\u003c\/li\u003e\n\u003cli\u003eCylinder block\u003c\/li\u003e\n\u003cli\u003eConnecting rod\u003c\/li\u003e\n\u003cli\u003eCrankshaft assembly\u003c\/li\u003e\n\u003cli\u003eConnecting-rod bearings\u003c\/li\u003e\n\u003cli\u003eTiming sprocket or Woodruff key\u003c\/li\u003e\n\u003cli\u003eCylinder-head gasket\u003c\/li\u003e\n\u003cli\u003eCylinder-base gasket\u003c\/li\u003e\n\u003cli\u003eEngine oil\u003c\/li\u003e\n\u003cli\u003eCylinder honing, boring or machining\u003c\/li\u003e\n\u003cli\u003eInstallation labour\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Details\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHero Genuine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHero MotoCorp Limited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13101AAF00099S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCatalogue Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13101-AAF-00099\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOfficial Description\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommon Buyer Terms\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard piston, engine piston, piston STD, bare piston\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize Specification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard \/ STD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCylinder bore and crankshaft\/connecting-rod assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCatalogue Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 piston per compatible engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Retail Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eListed Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e98 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eListed Package Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.5 × 5.5 × 8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIndia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMRP Reference\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e₹410 inclusive of taxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRing Set Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Pin Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston-Pin Clips Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGoogle Shopping MPN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13101AAF00099S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Note\u003c\/h3\u003e\n\n\u003cp\u003ePiston replacement requires complete internal-engine dismantling, precision measurement and correct component orientation. Installation should be performed by a trained motorcycle engine technician.\u003c\/p\u003e\n\n\u003ch4\u003eBefore Installation\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the old and new piston part numbers\u003c\/li\u003e\n\u003cli\u003eConfirm that the engine requires the standard-size piston\u003c\/li\u003e\n\u003cli\u003eMeasure the cylinder bore at the prescribed heights and directions\u003c\/li\u003e\n\u003cli\u003eCheck bore wear, taper, ovality and scoring\u003c\/li\u003e\n\u003cli\u003eMeasure the replacement piston at the specified measuring point\u003c\/li\u003e\n\u003cli\u003eCalculate piston-to-cylinder clearance\u003c\/li\u003e\n\u003cli\u003eInspect and measure the piston ring grooves\u003c\/li\u003e\n\u003cli\u003eCheck the matching ring set and ring end gaps\u003c\/li\u003e\n\u003cli\u003eInspect the piston pin and connecting-rod small end\u003c\/li\u003e\n\u003cli\u003eCheck crankshaft and connecting-rod condition\u003c\/li\u003e\n\u003cli\u003eIdentify the piston’s correct installation direction and markings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eDuring Installation\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUse only the matching standard-size ring set\u003c\/li\u003e\n\u003cli\u003eInstall rings in the correct grooves and orientation\u003c\/li\u003e\n\u003cli\u003eDo not force, hammer or drop the piston\u003c\/li\u003e\n\u003cli\u003eLubricate the piston, pin, rings and cylinder with clean specified engine oil\u003c\/li\u003e\n\u003cli\u003eFit the piston in the correct direction\u003c\/li\u003e\n\u003cli\u003eUse a serviceable or new model-correct piston pin where required\u003c\/li\u003e\n\u003cli\u003eInstall new piston-pin clips according to the service procedure\u003c\/li\u003e\n\u003cli\u003eConfirm each clip is fully seated and correctly oriented\u003c\/li\u003e\n\u003cli\u003eUse a proper ring compressor when inserting the piston into the cylinder\u003c\/li\u003e\n\u003cli\u003eReplace disturbed gaskets and seals\u003c\/li\u003e\n\u003cli\u003eFollow all model-specific tightening sequences and torque values\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eAfter Installation\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRotate the engine manually before starting\u003c\/li\u003e\n\u003cli\u003eRefill with the specified engine oil\u003c\/li\u003e\n\u003cli\u003eConfirm adequate lubrication\u003c\/li\u003e\n\u003cli\u003eCheck engine compression\u003c\/li\u003e\n\u003cli\u003eListen for piston slap, knocking or abnormal mechanical noise\u003c\/li\u003e\n\u003cli\u003eCheck for blue smoke and oil leakage\u003c\/li\u003e\n\u003cli\u003eMonitor engine temperature\u003c\/li\u003e\n\u003cli\u003eFollow the technician’s recommended running-in procedure\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBuyer-Focused FAQs\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003e1. What is Hero part number 13101AAF00099S?\u003c\/strong\u003e\u003cbr\u003eIt is a Hero Genuine standard-size bare piston for compatible HF 100, HF Deluxe, HF Dawn, Splendor and Passion Pro engine applications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e2. Is this a standard or oversize piston?\u003c\/strong\u003e\u003cbr\u003eThis is the standard-size or STD piston.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e3. Is this a complete piston kit?\u003c\/strong\u003e\u003cbr\u003eNo. This listing is for one bare piston only.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e4. Are the piston rings included?\u003c\/strong\u003e\u003cbr\u003eNo. The matching standard ring set is separately catalogued as 13011-AAF-00099.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e5. Is the piston pin included?\u003c\/strong\u003e\u003cbr\u003eNo. The compatible piston pin is separately catalogued as 13111-087-000.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e6. Are piston-pin clips included?\u003c\/strong\u003e\u003cbr\u003eNo. Two clips are separately catalogued under 13115-001-000.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e7. Does it fit Hero HF 100?\u003c\/strong\u003e\u003cbr\u003eHero officially lists the HF 100 family. Confirm the exact engine and chassis\/VIN catalogue before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e8. Does it fit Hero HF Deluxe?\u003c\/strong\u003e\u003cbr\u003eYes. Confirmed applications include several 2014–2015 generations, HF Deluxe i3S January 2020 and HF Deluxe December 2022.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e9. Does it fit Hero HF Deluxe Eco?\u003c\/strong\u003e\u003cbr\u003eYes. HF Deluxe Eco May 2015 is an exact confirmed application.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e10. Does it fit Hero HF Dawn?\u003c\/strong\u003e\u003cbr\u003eHero officially lists the HF Dawn family. Match the exact engine catalogue because HF generations can use different pistons.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e11. Does it fit Hero Splendor Plus?\u003c\/strong\u003e\u003cbr\u003eYes. Confirmed references include Splendor Plus March 2015 and December 2015. Other generations require an exact catalogue match.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e12. Does it fit Hero Splendor Pro?\u003c\/strong\u003e\u003cbr\u003eYes. Confirmed references include Splendor Pro FE August 2014, Splendor Pro Classic September 2014 and Splendor Pro October 2015.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e13. Does it fit Hero Splendor NXG?\u003c\/strong\u003e\u003cbr\u003eHero officially lists the Splendor NXG family. Confirm the exact engine catalogue before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e14. Does it fit Hero Splendor iSmart?\u003c\/strong\u003e\u003cbr\u003eYes. Splendor iSmart May 2014 is an exact confirmed application.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e15. Does it fit Hero Passion Pro?\u003c\/strong\u003e\u003cbr\u003eYes. Passion Pro June 2015 is an exact confirmed application. Other generations must be checked by part number.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e16. Does it fit Hero Super Splendor or Passion XPro?\u003c\/strong\u003e\u003cbr\u003eNo automatic compatibility is claimed. These models can use different piston and crankshaft families.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e17. Can this piston be used after cylinder reboring?\u003c\/strong\u003e\u003cbr\u003eOnly if measurement confirms that the bore remains standard size. Rebored cylinders generally require the corresponding oversize piston and matching oversize rings.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e18. What oversize pistons are available in this family?\u003c\/strong\u003e\u003cbr\u003eThe catalogue lists 0.25, 0.50, 0.75 and 1.00 mm oversize piston references separately.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e19. Can I use standard rings on an oversize piston?\u003c\/strong\u003e\u003cbr\u003eNo. The piston and ring set must have the same repair-size specification.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e20. Will a new piston stop blue smoke?\u003c\/strong\u003e\u003cbr\u003eOnly when piston wear is the confirmed cause and the cylinder, rings, valves and guides are serviceable or repaired correctly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e21. Will it restore compression?\u003c\/strong\u003e\u003cbr\u003eIt can help when piston or ring-groove wear is the cause, but the cylinder, rings and cylinder head must also be within specification.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e22. Can the piston be fitted without measuring the cylinder?\u003c\/strong\u003e\u003cbr\u003eNo. Bore size, taper, ovality and piston-to-cylinder clearance must be measured.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e23. Does the piston have an installation direction?\u003c\/strong\u003e\u003cbr\u003eYes. Follow all crown markings and the model-specific service procedure to establish the correct direction.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e24. Should new piston-pin clips be used?\u003c\/strong\u003e\u003cbr\u003eUse new model-correct clips where required by the service procedure. Incorrectly seated clips can cause severe cylinder damage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e25. Is professional installation necessary?\u003c\/strong\u003e\u003cbr\u003eYes. Incorrect piston size, clearance, direction, ring installation or clip seating can cause engine seizure or catastrophic damage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e26. How can I prevent ordering the wrong piston?\u003c\/strong\u003e\u003cbr\u003eMatch the complete SKU, exact engine generation, repair size, original piston marking, bore measurements and chassis\/VIN-based Hero catalogue.\u003c\/p\u003e\n\n\u003ch3\u003eInternal Engine Component Purchase Warning\u003c\/h3\u003e\n\u003cp\u003eConfirm the exact standard-size piston before opening or installation. Do not fit it merely for trial. Ring marks, piston-pin marks, circlip marks, scratches, measuring marks, oil exposure, filing, machining, heat damage or operational use can permanently affect the piston and invalidate return eligibility.\u003c\/p\u003e","brand":"Hero MotoCorp","offers":[{"title":"Default Title","offer_id":51777040515367,"sku":"13101AAF00099S","price":410.0,"currency_code":"INR","in_stock":true}],"url":"https:\/\/underthehood.co.in\/products\/hero-standard-piston-hf-100-hf-deluxe-splendor-passion-pro-13101aaf00099s","provider":"UNDER THE HOOD","version":"1.0","type":"link"}