{"product_id":"volvo-1120","title":"Volvo Penta D3 Camshaft Gear Pulley 8642804","description":"\u003ch2\u003ePart Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 8642804\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Volvo Penta\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOfficial Product Type:\u003c\/strong\u003e Camshaft Gear Pulley (Timing-Belt Pulley)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupersedes:\u003c\/strong\u003e \u003ca href=\"\/products?q=8631554\"\u003e8631554\u003c\/a\u003e — earlier camshaft pulley, used through engine serial number 344632\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaced By:\u003c\/strong\u003e 8642804 is the current part number, specified from serial number 344633 onward\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Family:\u003c\/strong\u003e Volvo Penta D3 2.4L 5-cylinder marine diesel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Engine timing — mounts to the camshaft and drives the toothed timing-belt system, maintaining the mechanical timing relationship between the camshaft and the rest of the engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagram Groups:\u003c\/strong\u003e Appears in both the Timing Gear Housing and Camshaft groups on multiple D3 generations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware Required:\u003c\/strong\u003e Four \u003ca href=\"\/products?q=985373\"\u003e985373\u003c\/a\u003e screws — confirm these are included or ordered separately; do not reuse older pulley hardware from 8631554 configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Contents:\u003c\/strong\u003e One camshaft gear pulley, supplied individually (screws not included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSerial Number Fitment \u0026amp; Supersession\u003c\/h2\u003e\n\u003cp\u003eThis is a serial-number-dependent fitment. On earlier D3 timing-gear diagrams:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products?q=8631554\"\u003e8631554\u003c\/a\u003e — used through engine serial number \u003cstrong\u003e344632\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8642804\u003c\/strong\u003e — specified from engine serial number \u003cstrong\u003e344633 and later\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen updating from 8631554 to 8642804, also order four \u003ca href=\"\/products?q=985373\"\u003e985373\u003c\/a\u003e screws — Volvo Penta specifies different fasteners for the updated pulley. Confirm both the pulley and hardware against the timing-gear diagram for the specific serial number.\u003c\/p\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cp\u003eFitment is engine-model, generation, and serial-number specific. Confirm 8642804 in the D3 \u003cstrong\u003eTiming Gear Housing\u003c\/strong\u003e or \u003cstrong\u003eCamshaft\u003c\/strong\u003e parts diagram for the exact engine serial number before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEarlier D3 Applications (A, B, C generations)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eD3-110I-A • D3-110I-B • D3-110I-C\u003c\/li\u003e\n\u003cli\u003eD3-130A-A • D3-130A-B • D3-130A-C\u003c\/li\u003e\n\u003cli\u003eD3-130I-A • D3-130I-B • D3-130I-C\u003c\/li\u003e\n\u003cli\u003eD3-160A-A • D3-160A-B • D3-160A-C\u003c\/li\u003e\n\u003cli\u003eD3-160I-A • D3-160I-B • D3-160I-C\u003c\/li\u003e\n\u003cli\u003eD3-190A-B • D3-190A-C\u003c\/li\u003e\n\u003cli\u003eD3-190I-A • D3-190I-B • D3-190I-C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eLater D3 Applications (G generation)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eD3-110I-G\u003c\/li\u003e\n\u003cli\u003eD3-140A-G • D3-140I-G\u003c\/li\u003e\n\u003cli\u003eD3-150I-G\u003c\/li\u003e\n\u003cli\u003eD3-170A-G • D3-170I-G\u003c\/li\u003e\n\u003cli\u003eD3-200A-G • D3-200I-G\u003c\/li\u003e\n\u003cli\u003eD3-220A-G • D3-220I-G\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTiming System Assembly Context\u003c\/h2\u003e\n\u003cp\u003eRelated components in the D3 timing-belt and camshaft assemblies:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products?q=985373\"\u003e985373\u003c\/a\u003e — Pulley screw (qty 4 required)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products?q=8631554\"\u003e8631554\u003c\/a\u003e — Earlier camshaft pulley (used through serial 344632)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products?q=31258305\"\u003e31258305\u003c\/a\u003e — Toothed timing belt (early D3 assemblies)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products?q=31258306\"\u003e31258306\u003c\/a\u003e — Second toothed timing belt (early D3 assemblies)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products?q=8692561\"\u003e8692561\u003c\/a\u003e — Idler pulley\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products?q=31339542\"\u003e31339542\u003c\/a\u003e — Tensioner (later D3 assemblies)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhen This Part Needs Replacement\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePulley teeth are visibly worn, chipped, or damaged\u003c\/li\u003e\n\u003cli\u003ePulley is cracked or distorted\u003c\/li\u003e\n\u003cli\u003eBolt holes are damaged or stripped\u003c\/li\u003e\n\u003cli\u003eTiming belt failure has damaged the pulley\u003c\/li\u003e\n\u003cli\u003eExcessive corrosion or mechanical wear is present\u003c\/li\u003e\n\u003cli\u003eUpdating from the earlier \u003ca href=\"\/products?q=8631554\"\u003e8631554\u003c\/a\u003e configuration on applicable serial numbers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAny timing-system damage should prompt inspection of the timing belts, tensioner, idler pulley, camshaft, and all timing fasteners before reassembly.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWarning: This is a critical engine timing component. Incorrect installation can cause serious internal engine damage.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eVerify camshaft and engine timing before removing the original pulley. Use the correct \u003ca href=\"\/products?q=985373\"\u003e985373\u003c\/a\u003e screws — four required — and do not reuse fasteners from the earlier 8631554 configuration. Inspect the toothed timing belts for cracks, missing teeth, contamination, or glazing and inspect the idler and tensioner assembly at the same time. Do not rotate the crankshaft or camshaft independently unless the Volvo Penta service procedure specifically permits it. Follow the applicable Volvo Penta D3 workshop manual for timing alignment procedures and fastener torque specifications.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Parts\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products?q=8631554\"\u003e8631554\u003c\/a\u003e — Earlier camshaft pulley (serial through 344632)\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products?q=985373\"\u003e985373\u003c\/a\u003e — Pulley screw ×4\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products?q=31258305\"\u003e31258305\u003c\/a\u003e — D3 toothed timing belt\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products?q=31258306\"\u003e31258306\u003c\/a\u003e — D3 second toothed timing belt\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products?q=8692561\"\u003e8692561\u003c\/a\u003e — D3 idler pulley\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products?q=31339542\"\u003e31339542\u003c\/a\u003e — D3 tensioner (later assemblies)\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products?q=volvo+penta+D3+timing+belt+kit\"\u003eD3 Timing Belt Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products?q=volvo+penta+D3+camshaft\"\u003eD3 Camshaft\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eParts Desk Insight\u003c\/h2\u003e\n\u003cp\u003eThe serial-number break is the key detail on this part: 8631554 is used through serial 344632, and 8642804 takes over from 344633 onward. If you’re ordering for an early D3 without knowing the serial, confirm it before ordering — these are two different pulleys. The hardware change matters too: Volvo Penta specifies four 985373 screws with 8642804, so if you’re upgrading from the older pulley, the fasteners need to come with it. Since the timing belt and tensioner have to come off to access this pulley, it’s worth doing the full timing-belt service at the same time — the incremental cost of belts and tensioner is small compared with the labour of coming back in for a belt service on a freshly assembled engine.\u003c\/p\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":43564051628068,"sku":"8642804","price":307.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/ff066e0b-fc6a-4c48-b408-aae19c2aa6cf.png?v=1789441387","url":"https:\/\/marisolmarine.com\/products\/volvo-1120","provider":"Marisol Marine Company","version":"1.0","type":"link"}