{"product_id":"21255887-gear-set-genuine-volvo-penta","title":"21255887 Gear Set | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n Genuine matched gear set used in the Volvo Penta DPH-A sterndrive. The gears are supplied as a matched set to maintain correct tooth contact and the specified 1.76 drive ratio.\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, DPH\n \u003c\/li\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   HP Range:\n  \u003c\/strong\u003e\n  225-370 HP\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  Genuine Volvo Penta matched gear set\n \u003c\/li\u003e\n \u003cli\u003e\n  DPH-A sterndrive application\n \u003c\/li\u003e\n \u003cli\u003e\n  1.76:1 ratio\n \u003c\/li\u003e\n \u003cli\u003e\n  Precision-matched gear tooth contact\n \u003c\/li\u003e\n \u003cli\u003e\n  Must be installed with correct shimming and bearing preload\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n The gear set transfers engine power through the upper drive while reducing rotational speed to the specified sterndrive ratio.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Gear whine or knocking\n \u003c\/li\u003e\n \u003cli\u003e\n  Chipped teeth\n \u003c\/li\u003e\n \u003cli\u003e\n  Drive vibration\n \u003c\/li\u003e\n \u003cli\u003e\n  Loss of propulsion\n \u003c\/li\u003e\n \u003cli\u003e\n  Water-contaminated oil accelerating gear damage\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  Gear sets are supplied as a matched set and must be fitted complete — never run a new gear against a used mate, and keep the set together as it was delivered\n \u003c\/li\u003e\n \u003cli\u003e\n  Setting up requires the shimming, backlash and tooth contact pattern checks in the workshop manual for your engine and drive, together with the proper measuring and pressing tools; this is not a fit-and-hope job\n \u003c\/li\u003e\n \u003cli\u003e\n  Establish why the old set failed before assembly — debris, a collapsed bearing or oil starvation will destroy the new gears just as quickly\n \u003c\/li\u003e\n \u003cli\u003e\n  Renew the bearings, seals and locking hardware at the same time, and flush the housing thoroughly so no metal debris is left in it\n \u003c\/li\u003e\n \u003cli\u003e\n  Fill with the oil specified for your drive, then check the oil early in service for signs of abnormal bedding-in debris\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  21255887 → Supersedes 3862370\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  3862370 earlier number superseded by this part\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  Ratio identification: 1.76R\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 D6-370A-C, D6-330A-D, D6-330A-C, D6-370A-D, D6-330A-E, D6-370A-E, D6-280I-D, D6-310I-D, D6-330I-C, D6-330I-D, D6-280A-C, D6-310A-C, D6-280A-D, D6-310A-D, D6-280A-E, D6-310A-E, D6-280I-C, D6-310I-C\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta D4-260A-C, D4-260A-D, D4-260A-E, D4-300A-C, D4-300A-D, D4-300A-E, D4-225I-C, D4-225I-D, D4-225A-C, D4-225A-D, D4-225A-E\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta DPH-A\n \u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":53381119443236,"sku":"G163265","price":3552.03,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_f675ec55-5096-430d-8922-48a6f02919e0.jpg?v=1788056721","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/21255887-gear-set-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}