{"product_id":"volvo-penta-crankcase-ventilation-filter-o-ring-3584461","title":"Volvo Penta Crankcase Ventilation Filter O-Ring 3584461 | D4 D6 D9 Diesel OEM","description":"\u003ch2\u003eVolvo Penta 3584461 – Crankcase Ventilation Filter O-Ring\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 3584461\u003cbr\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Volvo Penta\u003cbr\u003e\n\u003cstrong\u003eOfficial Product Type:\u003c\/strong\u003e Crankcase Ventilation Filter O-Ring (OEM)\u003cbr\u003e\n\u003cstrong\u003eSupersedes:\u003c\/strong\u003e No prior part number on record\u003cbr\u003e\n\u003cstrong\u003eReplaced By:\u003c\/strong\u003e No current supersession — 3584461 is the active OEM number\u003cbr\u003e\n\u003cstrong\u003eEngine Family:\u003c\/strong\u003e Volvo Penta D4, D6, and D9 Marine Diesel\u003cbr\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Crankcase Ventilation — Filter and Insert Assembly\u003cbr\u003e\n\u003cstrong\u003eDiagram Position:\u003c\/strong\u003e Item 5 on D4\/D6 crankcase ventilation assemblies; Item 9 on the D9A2A arrangement\u003cbr\u003e\n\u003cstrong\u003eQuantity Per Assembly:\u003c\/strong\u003e 1 O-ring per assembly\u003cbr\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 kg (0.02 lb)\u003c\/p\u003e\n\n\u003cp\u003eThe Volvo Penta 3584461 is a genuine OEM O-ring that seals the crankcase ventilation filter assembly on Volvo Penta D4, D6, and D9 marine diesel engines. It sits directly between the filter housing and insert 3584145, sealing against crankcase oil mist and vapour leakage. Replace this O-ring any time the crankcase ventilation filter assembly is disassembled for service.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eVerify your engine model and serial number before ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eVolvo Penta D4-180I-B \/ C \/ D \/ F\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-210A-B\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-225A-F \/ D4-225I-F\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-260A-F \/ D4-260D-F \/ D4-260I-F\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D4-300A-F \/ D4-300D-F \/ D4-300I-F\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D6-280A \/ D6-280I\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D6-300A-F \/ D6-300D-F \/ D6-300I-F\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D6-310A\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D6-330A-F \/ D6-330D-F \/ D6-330I-F\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D6-370A-F \/ D6-370D-F \/ D6-370I-F\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D6-400A-E \/ F\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D6-435D-F \/ D6-435I-F\u003c\/li\u003e\n\u003cli\u003eVolvo Penta D9-425 \/ D9-500 \/ D9-575 (D9A2A — confirm serial number)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe D4, D6, and D9 families use different crankcase ventilation housings and surrounding components even though 3584461 is shared across many installations. Always confirm against the crankcase ventilation diagram for your exact engine model and serial number before ordering.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eSerial Number Fitment Notice\u003c\/h3\u003e\n\u003cp\u003eFitment must be confirmed by the exact engine model, serial number, and crankcase ventilation parts diagram. Multiple ventilation system configurations exist across D4, D6, and D9 production ranges — serial-number breaks can affect which O-ring is required. Locate the engine identification plate and verify your model and serial number before ordering.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Crankcase ventilation filter housing seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Crankcase ventilation — filter and insert assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembly position:\u003c\/strong\u003e Item 5 (D4\/D6) · Item 9 (D9A2A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsed with:\u003c\/strong\u003e Filter insert \u003ca href=\"\/products\/8131491856420\"\u003e3584145\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity per assembly:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 kg (0.02 lb)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Oil-resistant elastomer (OEM spec)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWhenever the crankcase ventilation filter or insert is removed for service\u003c\/li\u003e\n\u003cli\u003eO-ring is flattened, hardened, cracked, or swollen\u003c\/li\u003e\n\u003cli\u003eEvidence of oil mist or crankcase vapour seepage around the filter housing\u003c\/li\u003e\n\u003cli\u003eAt every scheduled crankcase ventilation filter service interval\u003c\/li\u003e\n\u003cli\u003eDuring any adjacent ventilation system service where the housing is opened\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eService Interval\u003c\/h3\u003e\n\u003cp\u003eReplace this O-ring every time the crankcase ventilation filter assembly is disassembled. A disturbed O-ring should never be reused — even a seal that appears undamaged can lose its ability to compress and seal correctly after removal. Inspect filter insert \u003ca href=\"\/products\/8131491856420\"\u003e3584145\u003c\/a\u003e at the same time.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eClean the O-ring groove and both mating surfaces thoroughly before installing the new O-ring. Install the O-ring without twisting or pinching — a twisted O-ring will not seal correctly and is a common cause of post-service seepage. Reassemble according to the applicable Volvo Penta service procedure for your engine.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eRelated Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/8131491856420\"\u003eVolvo Penta Crankcase Ventilation Filter Insert 3584145\u003c\/a\u003e — Replace together with this O-ring at every filter service\u003c\/li\u003e\n\u003cli\u003eCrankcase ventilation filter 3584144 — Replace at filter service interval\u003c\/li\u003e\n\u003cli\u003eHose assembly 3849236 (D4\/D6) — Inspect while ventilation system is open\u003c\/li\u003e\n\u003cli\u003eNon-return valve 3887102 — Inspect at crankcase ventilation service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Why is this O-ring specifically for the crankcase ventilation filter, not a general engine O-ring?\u003c\/strong\u003e\u003cbr\u003e\nA: Volvo Penta's parts catalog places 3584461 directly in the crankcase ventilation filter assembly alongside insert 3584145 across D4, D6, and D9 engines. It is sized and rated specifically for this housing and is not interchangeable with other engine O-rings. Always confirm against your engine's parts diagram.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I reuse this O-ring after opening the filter housing?\u003c\/strong\u003e\u003cbr\u003e\nA: No. Once removed from its groove, an O-ring should always be replaced. A disturbed O-ring can fail to seal correctly even if it appears undamaged, leading to oil mist seepage from the crankcase ventilation system.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I use a generic O-ring instead of the OEM part?\u003c\/strong\u003e\u003cbr\u003e\nA: A generic O-ring may appear similar but can have the wrong cross-section dimension or insufficient oil and heat resistance for this application. The OEM part ensures the correct fit and material spec for the crankcase ventilation environment.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Should I replace the filter insert at the same time?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, if it has reached its service interval or shows contamination or wear. Replacing the O-ring and \u003ca href=\"\/products\/8131491856420\"\u003einsert 3584145\u003c\/a\u003e together avoids reopening the assembly shortly after.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eThis O-ring is the part most commonly missed when ordering the crankcase ventilation filter or insert for D4, D6, and D9 engines. It is inexpensive on its own, but skipping it means reopening the assembly — adding time and frustration to an otherwise straightforward service. Ordering it alongside \u003ca href=\"\/products\/8131491856420\"\u003efilter insert 3584145\u003c\/a\u003e is the smarter move.\u003c\/p\u003e\n\u003cp\u003eThe most common post-service issue is oil mist seepage around the ventilation filter housing — usually caused by a twisted or reused O-ring. Installing the new seal flat and evenly, without twisting, is the most important step in a clean crankcase ventilation filter service on these engines.\u003c\/p\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":43564002770980,"sku":"3584461","price":56.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/5658a31e-d3af-4868-aee9-4b2314b085d9.png?v=1776460266","url":"https:\/\/marisolmarine.com\/products\/volvo-penta-crankcase-ventilation-filter-o-ring-3584461","provider":"Marisol Marine Company","version":"1.0","type":"link"}