{"product_id":"volvo-584","title":"Volvo Penta D4 Alternator Pulley 3809128","description":"\u003cp\u003eVolvo Penta 3809128 is a genuine OEM pulley used in select Volvo Penta diesel engine charging-system assemblies. Current parts references place this part in the alternator component group for later D4 diesel applications, where it appears directly with alternator 3840181 and related charging hardware.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Volvo Penta OEM part number \u003cstrong\u003e3809128\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eIdentified in current Volvo Penta parts references as a \u003cstrong\u003epulley\u003c\/strong\u003e in the alternator assembly.\u003c\/li\u003e\n\u003cli\u003eStrongest application reference places it with \u003cstrong\u003ealternator 14V 115A\u003c\/strong\u003e setups.\u003c\/li\u003e\n\u003cli\u003eDealer weight references place it at approximately \u003cstrong\u003e0.244 kg\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe strongest supportable fitment for 3809128 is within Volvo Penta \u003cstrong\u003eD4-F series\u003c\/strong\u003e diesel applications. Current parts references tie it to \u003cstrong\u003eD4-180I-F, D4-225A-F, D4-225I-F, D4-260A-F, D4-260D-F, D4-260I-F, D4-300A-F, D4-300D-F, and D4-300I-F\u003c\/strong\u003e, specifically in the alternator component assembly. Because pulley and charging-system hardware can vary by alternator configuration and serial break, the safest fitment path is to match this pulley to the exact Volvo Penta engine diagram and serial-number-based application before ordering.\u003c\/p\u003e\n\u003ch2\u003eSerial Number Fitment Notice\u003c\/h2\u003e\n\u003cp\u003eMatch Volvo Penta part number \u003cstrong\u003e3809128\u003c\/strong\u003e to your engine serial number and the correct Volvo Penta charging-system or alternator diagram before ordering. Alternator pulleys can vary by alternator type, belt arrangement, and engine version, even within the same D4 family.\u003c\/p\u003e\n\u003ch2\u003eWhen This Part Needs Replacement\u003c\/h2\u003e\n\u003cp\u003eThis pulley should be replaced when it shows groove wear, wobble, cracking, corrosion, belt-slippage damage, or damage found during alternator service. It is also worth inspecting anytime the alternator or nearby charging-system hardware is already apart. This service guidance is based on the part's placement in the alternator component assembly.\u003c\/p\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eConfirm the exact application in the correct Volvo Penta schematic before installation, and compare the removed pulley carefully against the replacement part. Inspect the alternator shaft, belt condition, and adjacent charging-system hardware before reassembly. On alternator-drive parts, exact application matters more than a quick visual match.\u003c\/p\u003e\n\u003ch2\u003eAlternate\/Superseded Part Numbers\u003c\/h2\u003e\n\u003cp\u003eThe reviewed sources continue to list \u003cstrong\u003e3809128\u003c\/strong\u003e as the active Volvo Penta OEM number. No clearly supported Volvo Penta superseded replacement number surfaced in the current source set.\u003c\/p\u003e\n\u003ch2\u003eParts Desk Insight\u003c\/h2\u003e\n\u003cp\u003eWith alternator pulleys like this, the easy mistake is matching only by diameter. Checking the exact alternator assembly first usually saves time, especially when Volvo Penta used different pulley and charging combinations across closely related D4 variants.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":43564005687332,"sku":"3809128","price":446.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/4f407b30-d198-43e8-83ea-c78c1476426a.png?v=1776479808","url":"https:\/\/marisolmarine.com\/products\/volvo-584","provider":"Marisol Marine Company","version":"1.0","type":"link"}