{"product_id":"21304975-piston-ring-genuine-volvo-penta","title":"21304975 Piston Ring | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n A matched piston-ring set used on selected Volvo Penta D5, D7 and TAD engines. One set is required for each piston and it replaces earlier ring reference 20405571.\n\u003c\/p\u003e\n\u003ch2\u003e\n 🚤 Compatibility\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Engine Family:\n  \u003c\/strong\u003e\n  D, TD, TAD, MD\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\n Full model list at the end of this description.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚙️ Key Features\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Supersedes 20405571\n \u003c\/li\u003e\n \u003cli\u003e\n  One set required per piston\n \u003c\/li\u003e\n \u003cli\u003e\n  Controls compression, oil consumption and cylinder sealing\n \u003c\/li\u003e\n \u003cli\u003e\n  Engine type: Four- or six-cylinder turbocharged diesel\n \u003c\/li\u003e\n \u003cli\u003e\n  4 used per assembly\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n Seals combustion pressure, controls lubricating oil on the cylinder wall and transfers heat from the piston to the liner.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Excessive crankcase blow-by\n \u003c\/li\u003e\n \u003cli\u003e\n  High engine-oil consumption\n \u003c\/li\u003e\n \u003cli\u003e\n  Blue exhaust smoke\n \u003c\/li\u003e\n \u003cli\u003e\n  Scored liner or damaged ring grooves\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🛠️ Service Notes\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Supersedes earlier ring reference 20405571 - confirm current stock matches your engine's parts list before ordering\n \u003c\/li\u003e\n \u003cli\u003e\n  One set is required per piston; four-cylinder engines in this range need four sets in total\n \u003c\/li\u003e\n \u003cli\u003e\n  Check the ring end gap against the actual bore before fitting, and do not fit new rings to a bore outside specification\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔄 Supersession \u0026amp; Cross Reference\n\u003c\/h2\u003e\n\u003ch3\u003e\n OEM Supersession Chain\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  21304975 → Supersedes 20405571\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n OEM \/ Related Numbers\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  20405571 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  20405577 - piston pin\n \u003c\/li\u003e\n \u003cli\u003e\n  20405576 - snap ring\n \u003c\/li\u003e\n \u003cli\u003e\n  20412762 - O-ring\n \u003c\/li\u003e\n \u003cli\u003e\n  20585982 - connecting rod\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n Other-Brand OEM Numbers\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  MAHLE 099 RS 00127 0N0\n \u003c\/li\u003e\n \u003cli\u003e\n  GOETZE ENGINE 08-136900-00\n \u003c\/li\u003e\n \u003cli\u003e\n  Kolbenschmidt: 800071210000\n \u003c\/li\u003e\n \u003cli\u003e\n  Kolbenschmidt: 80 00344 1 0 000\n \u003c\/li\u003e\n \u003cli\u003e\n  Goetze Engine: 06-136900-00\n \u003c\/li\u003e\n \u003cli\u003e\n  Goetze Engine: 06-863000-20\n \u003c\/li\u003e\n \u003cli\u003e\n  Goetze Engine: 08-430000-00\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n Aftermarket \/ Verified Equivalents\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  DT Spare Parts: 2.94579\n \u003c\/li\u003e\n \u003cli\u003e\n  Freccia: FR10-516600\n \u003c\/li\u003e\n \u003cli\u003e\n  Mec-Diesel: 812410\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 📦 Condition\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Genuine Volvo Penta part\n \u003c\/li\u003e\n \u003cli\u003e\n  Brand new\n \u003c\/li\u003e\n \u003cli\u003e\n  Supplied in original or equivalent packaging\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔎 Full Model Compatibility\n\u003c\/h2\u003e\n\u003cp\u003e\n Typically suits:\n\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Volvo Penta D7A-B TA, D7A-T, D7A-TA, D7C-B TA, D7C-TA\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D5A-B TA, D5A-T, D5A-TA\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta MD2010, MD2010B\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD520GE, TAD520VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD530GE MECH, TAD530GE EDC4\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD531GE MECH, TAD531GE EDC4\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD720GE, TAD720VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD721GE, TAD721VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD722GE, TAD722VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD730GE MECH, TAD730GE EDC4\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD731GE MECH, TAD731GE EDC4\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TD520GE, TD520VE\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD532GE EDC4\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD732GE EDC4\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAD733GE EDC4\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TD720GE\n \u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":53381108597028,"sku":"7911935","price":140.48,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_9efdc9be-04a5-4d15-b620-fdb9d1132b72.jpg?v=1777129776","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/21304975-piston-ring-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}