{"product_id":"volvo-penta-cooling-sealing-ring-430272-aq165-aq170","title":"Volvo Penta Cooling System Sealing Ring 430272 – AQ165 AQ170 BB165 BB170","description":"\u003ch2\u003eVolvo Penta Cooling System Sealing Ring 430272 – AQ165 \/ AQ170 \/ BB165 \/ BB170\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e430272\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOfficial Part Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSealing Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Reference\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eD42A \/ PP Spec. 16053 \/ 867638\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiagram Position (AQ165A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eItem 9 — cooling-system assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCooling system \/ induction manifold \/ aftercooler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.003 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat This Part Is\u003c\/h2\u003e\n\u003cp\u003eVolvo Penta 430272 is a genuine OEM sealing ring used in cooling-system and induction-manifold assemblies on selected legacy Volvo Penta AQ and BB gasoline engines. On the AQ165A cooling-system diagram it appears at \u003cstrong\u003eitem 9\u003c\/strong\u003e, called out specifically for the \u003cstrong\u003eD42A \/ PP Spec. 16053 \/ 867638\u003c\/strong\u003e configuration. A separate Volvo Penta parts diagram also documents 430272 in the TAMD70B induction manifold and aftercooler assembly, confirming this sealing-ring specification was used across more than one legacy application.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e On the AQ165A cooling-system diagram, Volvo lists both 430272 (special specification) and 430018 (standard) at the same schematic position for different build specifications. These are not interchangeable. Do not substitute one for the other without confirming which specification applies to your engine.\u003c\/p\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo Penta AQ165A — cooling system (item 9, D42A \/ PP Spec. 16053 \/ 867638 configuration)\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ170A \/ AQ170B \/ AQ170C — cooling system (confirm by serial)\u003c\/li\u003e\n\u003cli\u003eVolvo Penta BB165A — cooling system (confirm by serial)\u003c\/li\u003e\n\u003cli\u003eVolvo Penta BB170A \/ BB170B \/ BB170C — cooling system (confirm by serial)\u003c\/li\u003e\n\u003cli\u003eVolvo Penta TAMD70B — induction manifold and aftercooler assembly (confirm by serial)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFitment Notice\u003c\/h2\u003e\n\u003cp\u003eOn AQ165A cooling-system diagrams, Volvo Penta lists four related sealing rings at adjacent positions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e430018\u003c\/strong\u003e — standard sealing ring at item 9 position\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e430272\u003c\/strong\u003e — special-specification sealing ring at item 9 position (this part)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e430172\u003c\/strong\u003e — standard sealing ring at the adjacent position\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e430273\u003c\/strong\u003e — special-specification sealing ring at the adjacent position\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese are application variants, not supersessions. Do not treat nearby part numbers as interchangeable. Confirm which number applies to your exact engine build specification before ordering. Always verify against your engine serial number and the correct Volvo Penta parts diagram.\u003c\/p\u003e\n\n\u003ch2\u003eWhen to Replace\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSealing ring is hardened, flattened, split, or damaged\u003c\/li\u003e\n\u003cli\u003eCoolant leakage is visible at the sealed joint\u003c\/li\u003e\n\u003cli\u003eCooling or induction assembly is being disassembled for other service\u003c\/li\u003e\n\u003cli\u003eRing has been disturbed and can no longer provide dependable sealing\u003c\/li\u003e\n\u003cli\u003eApplicable Volvo Penta service procedure specifies ring replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm part number 430272 against your engine serial number and the Volvo Penta parts diagram for your specific engine before installation\u003c\/li\u003e\n\u003cli\u003eClean the sealing groove and mating surfaces before fitting the new ring\u003c\/li\u003e\n\u003cli\u003eCompare the replacement ring against the removed ring to confirm size and profile match\u003c\/li\u003e\n\u003cli\u003eInstall without twisting or pinching the ring\u003c\/li\u003e\n\u003cli\u003eReassemble to Volvo Penta torque specifications\u003c\/li\u003e\n\u003cli\u003ePressure-check the cooling system after reassembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eService Interval\u003c\/h2\u003e\n\u003cp\u003eNo fixed calendar interval. Replace whenever the cooling or induction assembly is disassembled and the ring shows compression set, hardening, or any damage. Proactive replacement is recommended any time this area is opened for other service — sealing rings are low-cost insurance against a repeat teardown.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use 430018 instead of 430272?\u003c\/strong\u003e\u003cbr\u003eNo — not without confirming which specification applies to your engine. On the AQ165A cooling-system diagram, Volvo lists both numbers at the same schematic position for different build specifications (standard vs. special spec). They may not be dimensionally or functionally identical. Confirm which number is correct for your engine’s configuration before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs 430272 still a current Volvo Penta part?\u003c\/strong\u003e\u003cbr\u003eYes. Current OEM dealer sources list 430272 as an active genuine part number with no confirmed supersession to a new number.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this ring fit TAMD70B engines?\u003c\/strong\u003e\u003cbr\u003eA Volvo Penta parts diagram documents 430272 in the TAMD70B induction manifold and aftercooler assembly. Confirm against your TAMD70B engine serial number and the specific diagram position before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does it matter which sealing ring I use?\u003c\/strong\u003e\u003cbr\u003eSealing rings that look similar can have different dimensions, durometer (hardness), or material specifications for different groove and housing combinations. Using the wrong ring can result in coolant leakage or premature seal failure. For legacy engines like the AQ165 and AQ170 families, matching by exact part number from the schematic is the only reliable method.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eThe key point with 430272 is that it is a \u003cstrong\u003especial-specification\u003c\/strong\u003e sealing ring — not a generic cooling seal. On the AQ165A diagram it shares a schematic position with the standard 430018 but is called out separately for a specific build configuration. The most common ordering mistake in this part family is assuming that nearby part numbers at the same schematic position are interchangeable. They are not. When a customer is sourcing sealing rings for an AQ165 or AQ170 cooling system rebuild, the right approach is to get the engine serial number, pull the correct diagram, and confirm each ring number position by position rather than ordering by appearance or proximity.\u003c\/p\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":43564039176228,"sku":"430272","price":43.2,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/e3bcbe1a-202e-417f-9633-ed62459d2658.png?v=1776230452","url":"https:\/\/marisolmarine.com\/products\/volvo-penta-cooling-sealing-ring-430272-aq165-aq170","provider":"Marisol Marine Company","version":"1.0","type":"link"}