{"product_id":"volvo-penta-shift-mechanism-sealing-ring-3863085","title":"Volvo Penta Shift Mechanism Sealing Ring 3863085 | SX-A DPS-A DPS-B","description":"\u003ch2\u003eVolvo Penta 3863085 – Shift Mechanism Sealing Ring\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3863085\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Volvo Penta (OEM Genuine)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOfficial Product Type:\u003c\/strong\u003e Sealing Ring – Shift Mechanism \/ Control Housing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Sterndrive Shift Mechanism\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Per Assembly:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstalled In:\u003c\/strong\u003e Shift mechanism \/ control housing assembly alongside gear shifter 22273952, piston 3862388, \u003ca href=\"\/products\/8131504177188\"\u003epin 3862867\u003c\/a\u003e, \u003ca href=\"\/products\/8131509026852\"\u003espring 814184\u003c\/a\u003e, \u003ca href=\"\/products\/8131522953252\"\u003eO-ring 945624\u003c\/a\u003e, and \u003ca href=\"\/products\/8131503685668\"\u003edog 3862387\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAftermarket Cross-Reference:\u003c\/strong\u003e Sierra 18-25250 \/ ORB19085\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupersedes:\u003c\/strong\u003e No confirmed newer Volvo Penta OEM number identified – order by active number 3863085\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 0.09 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e Sealing ring only – all adjacent shift mechanism components are serviced separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe 3863085 is a genuine OEM Volvo Penta sealing ring used in the shift mechanism and control housing assembly on selected SX-A, DPS-A, DPS-B, DPH-D1, and DPR-D sterndrives. It seals the shifter\/control housing assembly to prevent gear-oil leakage and contamination in the shift mechanism. This is a shift-mechanism-specific seal — not a generic drive housing O-ring — and must be matched to the exact drive model and diagram position before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo Penta SX-A – shift mechanism \/ control housing assembly (2007 and newer; confirm by serial)\u003c\/li\u003e\n\u003cli\u003eVolvo Penta DPS-A – shift mechanism \/ control housing assembly (confirm by serial)\u003c\/li\u003e\n\u003cli\u003eVolvo Penta DPS-B – shift mechanism \/ control housing assembly (confirm by serial)\u003c\/li\u003e\n\u003cli\u003eVolvo Penta DPH-D1 – shift mechanism assembly (confirm by serial)\u003c\/li\u003e\n\u003cli\u003eVolvo Penta DPR-D – shift mechanism assembly (confirm by serial)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSerial Number Notice:\u003c\/strong\u003e Confirm the exact drive model, serial number, and shift-mechanism diagram before ordering. Several sealing rings and O-rings are used in the same upper-housing area and are not interchangeable — matching by diagram position is the safest approach.\u003c\/p\u003e\n\n\u003ch2\u003eWhen to Replace\u003c\/h2\u003e\n\u003cp\u003eReplace this sealing ring whenever the shift mechanism or control housing is disassembled, when gear-oil leakage is present around the control housing, when the seal is hardened, flattened, cut, or damaged, when water intrusion or contamination points to a sealing failure, or when the surrounding shift mechanism is being overhauled. Never reuse a seal that has been removed — seals that have been compressed and disturbed lose their ability to seal reliably.\u003c\/p\u003e\n\n\u003ch2\u003eService Interval\u003c\/h2\u003e\n\u003cp\u003eInspect shift mechanism seals during major sterndrive service or any time the control housing is disassembled. Replace as a matter of course whenever the assembly is open — the cost of a new seal is minimal compared to the labour required to access this area again.\u003c\/p\u003e\n\n\u003ch2\u003eAssociated Service Parts\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131504177188\"\u003eVolvo Penta Shift Mechanism Pin 3862867\u003c\/a\u003e – Shift mechanism pin in the same control housing assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131509026852\"\u003eVolvo Penta Spring 814184\u003c\/a\u003e – Return spring in the shift mechanism assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131503685668\"\u003eVolvo Penta Dog 3862387\u003c\/a\u003e – Shift dog in the same control housing assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131522953252\"\u003eVolvo Penta O-Ring 945624\u003c\/a\u003e – O-ring used in the same shift mechanism assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131504341028\"\u003eVolvo Penta Sealing Ring 3863084\u003c\/a\u003e – Adjacent DPH\/DPR sterndrive sealing ring\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131505553444\"\u003eVolvo Penta Split Pin \/ Cotter Pin 3885524\u003c\/a\u003e – SX-A \/ DPS-A \/ DPS-B split pin\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eBefore installation, clean the seal bore and all mating surfaces thoroughly. Inspect the shift shaft and control housing bore for wear, scoring, or corrosion that could damage the new seal or prevent proper seating. Lubricate the sealing ring only as specified in the applicable Volvo Penta workshop procedure for your drive model. Install squarely without twisting or distorting the sealing lip. Inspect all adjacent O-rings and retaining hardware and replace as needed before reassembly. After service, pressure- or vacuum-test the drive where applicable to confirm sealing integrity before returning to the water.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What drives use this sealing ring?\u003c\/strong\u003e\u003cbr\u003eA: Confirmed applications are SX-A (2007-newer), DPS-A, DPS-B, DPH-D1, and DPR-D. Always confirm by your exact drive model and serial number against the shift-mechanism diagram before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is the Sierra 18-25250 a direct equivalent?\u003c\/strong\u003e\u003cbr\u003eA: Sierra catalogs 18-25250 as a replacement for Volvo Penta 3863085 for SX-A \/ DPS-A 2007-and-newer applications. If using an aftermarket equivalent, confirm the cross-reference carefully by drive model before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between 3863085 and 3863084?\u003c\/strong\u003e\u003cbr\u003eA: Both are Volvo Penta sealing rings in the DPH\/DPR\/SX sterndrive family, but they occupy different positions. The 3863085 is specifically the shift mechanism \/ control housing sealing ring. The \u003ca href=\"\/products\/8131504341028\"\u003e3863084\u003c\/a\u003e is used in a separate DPH\/DPR sterndrive sealing position. Always confirm by diagram position for your specific drive.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I reuse this seal if it looks undamaged after removal?\u003c\/strong\u003e\u003cbr\u003eA: No. Sealing rings should always be replaced after removal. A seal that has been compressed in service and then disturbed will not reliably return to its original sealing profile, even if it appears undamaged visually.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBest Use Case:\u003c\/strong\u003e This is the correct part for customers overhauling the shift mechanism or control housing on an SX-A, DPS-A\/B, DPH-D1, or DPR-D sterndrive — particularly when addressing gear-oil leakage around the control housing or completing a full upper-housing service. Best ordered alongside the O-ring 945624, shift dog 3862387, and spring 814184 to complete the shift mechanism service in one pass.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon Issues:\u003c\/strong\u003e The most frequent mistake is treating this as a generic drive housing O-ring and substituting by dimension — it is specifically a shift-mechanism control-housing seal and must match the exact diagram position. The second common issue is ordering for the wrong drive generation: the SX-A \/ DPS family and DPH-D1 \/ DPR-D share this part number, but earlier DPH or DPR variants may use a different seal. Always confirm by drive serial number and the applicable shift-mechanism diagram.\u003c\/p\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":43564035964964,"sku":"3863085","price":51.7,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/98598e2b-3259-4137-a3bc-676733187afa.png?v=1788734437","url":"https:\/\/marisolmarine.com\/products\/volvo-penta-shift-mechanism-sealing-ring-3863085","provider":"Marisol Marine Company","version":"1.0","type":"link"}