{"product_id":"volvo-penta-timing-belt-463377-aq-series","title":"Volvo Penta Camshaft Timing Belt 463377 – AQ Series Gasoline Engines","description":"\u003ch2\u003eVolvo Penta Camshaft Timing Belt 463377 – AQ Series Gasoline Engines\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\u003e463377\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\u003eTooth Belt (Camshaft Timing Belt)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCamshaft timing drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConstruction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eReinforced synthetic cord, precision-molded teeth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSynchronizes crankshaft and camshaft for correct valve timing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.35 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEngine timing \/ camshaft drive\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 463377 is a genuine OEM camshaft timing belt (tooth belt) used on several Volvo Penta AQ and BB series gasoline marine engines derived from Volvo automotive platforms. It synchronizes the crankshaft and camshaft to maintain correct valve timing — a function that is critical to engine performance, fuel efficiency, and preventing internal engine damage from valve-to-piston contact if the belt fails.\u003c\/p\u003e\n\u003cp\u003eConfirm fitment against your engine model and serial number before ordering. Timing belt specification can vary by engine revision and serial range within the same model family.\u003c\/p\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo Penta AQ120B\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ125A \/ AQ125B\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ131A \/ AQ131B \/ AQ131C \/ AQ131D\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ140A\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ145A \/ AQ145B\u003c\/li\u003e\n\u003cli\u003eVolvo Penta AQ151A \/ AQ151B \/ AQ151C\u003c\/li\u003e\n\u003cli\u003eVolvo Penta BB140A\u003c\/li\u003e\n\u003cli\u003eVolvo Penta BB145A\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 230A \/ 230B\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 250A \/ 250B\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConfirm by engine serial number — accessory configurations and production revisions can vary within model families.\u003c\/p\u003e\n\n\u003ch2\u003eFitment Notice\u003c\/h2\u003e\n\u003cp\u003eLocate your engine’s data plate (typically on the engine block, valve cover, or timing cover) and record the engine model and serial number before ordering. Check the Volvo Penta parts catalog for your specific serial number range to confirm that 463377 is listed for your exact engine configuration. Do not order by engine family name alone — serial range matters for timing belt fitment.\u003c\/p\u003e\n\n\u003ch2\u003eWhen to Replace\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAt or before the Volvo Penta-specified timing belt service interval for your engine (consult your engine’s service manual)\u003c\/li\u003e\n\u003cli\u003eBelt shows cracking, fraying, glazing, or missing\/damaged teeth\u003c\/li\u003e\n\u003cli\u003eBelt tension is incorrect and cannot be restored\u003c\/li\u003e\n\u003cli\u003eAny time the timing cover is removed for other service and the belt shows visible wear\u003c\/li\u003e\n\u003cli\u003eBelt has been contaminated by oil or coolant\u003c\/li\u003e\n\u003cli\u003eEngine has been out of service for an extended period and the belt age is unknown\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFollow the Volvo Penta workshop manual timing belt procedure for your engine model and serial range exactly — incorrect installation can result in valve timing errors or engine damage\u003c\/li\u003e\n\u003cli\u003eInspect the timing belt tensioner and idler (if applicable) for bearing roughness or wear and replace if needed while the timing cover is open\u003c\/li\u003e\n\u003cli\u003eCheck the camshaft and crankshaft seals for leaks before reassembly — an oil leak behind the belt will shorten the new belt’s service life\u003c\/li\u003e\n\u003cli\u003eSet belt tension to the specification in the Volvo Penta service manual — do not estimate tension by feel\u003c\/li\u003e\n\u003cli\u003eRotate the engine through at least two full crankshaft revolutions by hand after installation to verify timing marks align correctly before starting\u003c\/li\u003e\n\u003cli\u003eObserve break-in recommendations in the service manual after timing belt replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eService Interval\u003c\/h2\u003e\n\u003cp\u003eVolvo Penta specifies a timing belt replacement interval for AQ and BB series engines — consult the service manual for your specific engine model and serial range for the correct interval in hours or years. On marine engines that may sit unused for extended periods, the age of the belt is as important as hours run. A belt that is beyond its replacement interval or of unknown age should be replaced before the engine is put back into service. Timing belt failure on an interference engine causes significant internal damage.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if a timing belt breaks on these engines?\u003c\/strong\u003e\u003cbr\u003eThe AQ and BB series engines using this belt are interference engines — meaning the valves and pistons occupy overlapping paths in the cylinder. If the timing belt breaks while the engine is running, valves and pistons will collide, causing significant internal damage. Timing belt replacement on schedule is not optional maintenance on these engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I replace the tensioner and idler at the same time?\u003c\/strong\u003e\u003cbr\u003eYes, as a general best practice. Tensioner and idler bearings wear at a similar rate to the belt. If a bearing fails shortly after a new belt is fitted, the belt is lost and the engine must be torn down again. Replacing all timing drive components at the same interval avoids this. Check with us for tensioner and idler availability for your engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I confirm the correct timing belt for my engine?\u003c\/strong\u003e\u003cbr\u003eLocate the data plate on your engine (block, valve cover, or timing cover area) and record the exact engine model and serial number. Cross-reference against the Volvo Penta parts catalog for your serial range to confirm 463377 is listed. If in doubt, contact us with your serial number before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan oil contamination damage the new belt?\u003c\/strong\u003e\u003cbr\u003eYes. Inspect and replace any leaking camshaft or crankshaft seals before fitting the new belt. Oil contamination will degrade the belt material and significantly shorten its service life.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eThe 463377 is a straightforward part number for these AQ and BB series engines, but the timing belt service is one where the consequences of skipping it or installing it incorrectly are severe — interference engine damage is expensive. The most common issue at the counter is customers asking if they can get away with just the belt without the tensioner: the answer is almost always no if the tensioner is original, because the bearing is just as old as the belt. It’s also worth asking whether the cam and crank seals have been checked — an oil leak behind a new belt is the fastest way to write it off before its service interval. If the customer has the serial number, confirming it against the Volvo Penta catalog before the order ships saves everyone a trip.\u003c\/p\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":43564039208996,"sku":"463377","price":92.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/4d67ae75-5ef2-4d93-a953-77901817e8eb.png?v=1773027807","url":"https:\/\/marisolmarine.com\/products\/volvo-penta-timing-belt-463377-aq-series","provider":"Marisol Marine Company","version":"1.0","type":"link"}