{"product_id":"volvo-770","title":"Volvo Penta Duoprop Rear Propeller Thrust Ring 3858458","description":"\u003ch2\u003eVolvo Penta OEM Duoprop Rear Propeller Thrust Ring – Part No. 3858458\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3858458\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\u003eComponent Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRear Propeller Thrust Ring \/ Thrust Washer\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDuoprop Propeller Shaft Assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePosition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRear propeller — do not interchange with front thrust ring 3858457\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePropeller Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eType A, B, C, and J Duoprop propellers\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity Per Assembly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupersedes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo documented supersession — 3858458 is the current active OEM number\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReplaced By\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo documented replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelated Front Thrust Ring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3858457 (front position — sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelated Propeller Nut\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3851334 (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cp\u003eConfirm fitment by sterndrive model, serial number, and propeller type before ordering. Both thrust ring part numbers (3858457 front \/ 3858458 rear) appear in the same hardware assembly — they are not interchangeable.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVolvo Penta 280 DP sterndrive\u003c\/li\u003e\n  \u003cli\u003eVolvo Penta 290 DP sterndrive\u003c\/li\u003e\n  \u003cli\u003eVolvo Penta DP-A through DP-G configurations\u003c\/li\u003e\n  \u003cli\u003eAdditional Volvo Penta DP sterndrive configurations using Type A, B, C, or J Duoprop propellers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cp\u003eReplace the thrust ring if it is worn, distorted, cracked, or corroded around its thrust or locating surfaces. Inspect it whenever the Duoprop propellers are removed for service — including fishing-line clearance checks and propeller shaft maintenance — since the ring is accessible and inexpensive to replace at that point.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cp\u003eBefore installation, clean and inspect the propeller shaft, thrust surfaces, and propeller hubs. Confirm that 3858458 is installed in the \u003cstrong\u003erear\u003c\/strong\u003e propeller position. Inspect the front thrust ring (3858457), propeller nut (3851334), spacer ring, washer, and propeller cone hardware at the same time.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between 3858457 and 3858458?\u003c\/strong\u003e\u003cbr\u003e3858457 is the \u003cem\u003efront\u003c\/em\u003e propeller thrust ring; 3858458 is the \u003cem\u003erear\u003c\/em\u003e. Both are used in the same Duoprop assembly and must be installed in the correct position. Interchanging them can result in improper thrust transfer and propeller hardware failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to replace both thrust rings at the same time?\u003c\/strong\u003e\u003cbr\u003eNot always — but since both parts are exposed to the same wear conditions and are accessible together during propeller removal, replacing both as a set is generally the more economical long-term choice.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit all Volvo Penta Duoprop drives?\u003c\/strong\u003e\u003cbr\u003e3858458 is confirmed for Type A, B, C, and J propeller installations on DP-series sterndrives. Other Duoprop configurations should be verified by drive model, serial number, and propeller type before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the GLM 23153 a direct equivalent?\u003c\/strong\u003e\u003cbr\u003eGLM 23153 is listed as an aftermarket reference for this position. As with any aftermarket part, verify the cross-reference against your exact drive model before use.\u003c\/p\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003eThe front and rear Duoprop thrust rings look similar and sit right next to each other in the assembly, which makes them one of the more common mix-up items during propeller hardware orders. Customers usually need this ring during propeller removal for fishing-line damage inspection or seasonal service — it’s a good opportunity to replace both rings and the propeller nut together rather than making a second trip for hardware that was borderline.\u003c\/p\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":43564032917540,"sku":"3858458","price":79.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/ebcab212-2036-40a6-aa36-e99499b3bc20.png?v=1788498329","url":"https:\/\/marisolmarine.com\/products\/volvo-770","provider":"Marisol Marine Company","version":"1.0","type":"link"}