{"product_id":"volvo-212","title":"Volvo Penta Gear Housing – OEM Part 21658888","description":"\u003ch2\u003eVolvo Penta Gear Housing – OEM Part 21658888\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 21658888\u003cbr\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Volvo Penta\u003cbr\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Sterndrive \/ Lower Drive Assembly\u003cbr\u003e\n\u003cstrong\u003eEngine Family:\u003c\/strong\u003e Volvo Penta sterndrive systems (confirm by drive model and serial number)\u003c\/p\u003e\n\n\u003cp\u003eThis is the genuine OEM gear housing for select Volvo Penta sterndrive assemblies. The gear housing is the structural core of the lower drive unit — it houses the drive gears, bearings, and seals that transfer power from the engine to the propeller. At $11,800, this is one of the highest-value components in the drive system. Fitment must be confirmed by drive model and serial number before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo Penta sterndrive systems — specific drive model confirmed by serial number\u003c\/li\u003e\n\u003cli\u003eVerify fitment using your drive model designation and serial number on the drive ID plate\u003c\/li\u003e\n\u003cli\u003eCross-reference against the Volvo Penta parts diagram for your drive assembly before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 21658888\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Gear housing (lower drive unit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Sterndrive lower drive assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e OEM marine-grade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 3 kg (estimated — confirm with freight carrier for shipping)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eGear housing replacements are most commonly needed after a significant impact — striking a submerged object, a hard grounding, or a propeller strike that transmits shock load into the housing. Cracks or fractures in the housing are not always immediately visible; overheating, gear noise, or sudden oil loss are often the first signs. This is also ordered during full drive rebuilds on high-hour units where the housing shows wear at bearing bores or seal surfaces. Because this is a high-value structural component, we strongly recommend confirming your drive serial number and consulting the Volvo Penta parts diagram before ordering. A misidentified housing is a costly mistake.\u003c\/p\u003e\n\n\u003ch3\u003eService Interval\u003c\/h3\u003e\n\u003cp\u003eInspect the gear housing during every major drive service. Replace immediately if cracking, fracture, bearing bore wear, or seal surface damage is found. Gear lube should be changed annually or every 100 hours — contaminated or milky gear lube is an early indicator of seal or housing failure.\u003c\/p\u003e\n\n\u003ch3\u003eSigns This Part Needs Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVisible cracks or fractures in the housing body\u003c\/li\u003e\n\u003cli\u003eGear noise or vibration under load\u003c\/li\u003e\n\u003cli\u003eSudden gear lube loss or milky\/contaminated lube\u003c\/li\u003e\n\u003cli\u003eBearing bore wear or damaged seal surfaces\u003c\/li\u003e\n\u003cli\u003eImpact damage from grounding or propeller strike\u003c\/li\u003e\n\u003cli\u003eFull drive rebuild on high-hour unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I rebuild the existing housing instead of replacing it?\u003c\/strong\u003e\u003cbr\u003e\nIn some cases, yes — if damage is limited to seals and bearings, a rebuild kit may be sufficient. However, if the housing itself is cracked or the bearing bores are worn beyond spec, replacement is required. A qualified marine technician should assess the housing before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this is the right housing for my drive?\u003c\/strong\u003e\u003cbr\u003e\nUse your drive model designation and serial number, then cross-reference with the Volvo Penta parts diagram for your specific drive. Serial number breaks are common on Volvo Penta drives — the same drive model may use different housings across production runs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What else should I replace at the same time?\u003c\/strong\u003e\u003cbr\u003e\nWhen replacing the gear housing, plan to replace all seals, O-rings, bearings, and thrust plates. Gear lube should also be refreshed. See related parts below.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131483467812\"\u003eVolvo Penta Gear Housing 22227295\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131496411172\"\u003eVolvo Penta Gear Housing 3842842\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131493855268\"\u003eVolvo Penta Upper Gear Core 3804451\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131493167140\"\u003eVolvo Penta Starboard Thrust Plate – Upper Gear Housing 3589524\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131493134372\"\u003eVolvo Penta Thrust Plate – Upper Gear Housing 3589522\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131506536484\"\u003eVolvo Penta Lower Gear Housing O-Ring SX-A DPS 3889786\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131506503716\"\u003eVolvo Penta Lower Gear Housing O-Ring 3889784\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131506176036\"\u003eVolvo Penta Gasket Kit 3888917\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/8131473801252\"\u003eVolvo Penta Transmission Oil 80W-90 GL-5 1141676\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":43563988942884,"sku":"21658888","price":11800.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/4f552f0d-2ed6-4942-9f65-21f404c1bdc9.png?v=1787435039","url":"https:\/\/marisolmarine.com\/products\/volvo-212","provider":"Marisol Marine Company","version":"1.0","type":"link"}