{"product_id":"volvo-penta-hydraulic-trim-pump-seal-3858078","title":"Volvo Penta Hydraulic Trim Pump Seal 3858078","description":"\u003cp\u003eVolvo Penta \u003cstrong\u003e3858078\u003c\/strong\u003e is a genuine-style seal \/ O-ring used in select Volvo Penta hydraulic trim pump and trim instrument assemblies. It is shown in Volvo Penta parts diagrams at the hydraulic pump reservoir \/ cover area, commonly as diagram reference \u003cstrong\u003e#8\u003c\/strong\u003e, and is used with related components such as filter \u003cstrong\u003e3858076\u003c\/strong\u003e, reservoir \u003cstrong\u003e854531 \/ 3861570\u003c\/strong\u003e, cover \/ cap \u003cstrong\u003e3858079\u003c\/strong\u003e, small parts kit \u003cstrong\u003e854534\u003c\/strong\u003e, and hydraulic pump \u003cstrong\u003e854535 \/ 3586765\u003c\/strong\u003e depending on the exact assembly.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo Penta seal \/ O-ring for supported hydraulic trim pump assemblies\u003c\/li\u003e\n\u003cli\u003eUsed in trim pump, trim instrument, and installation component groups\u003c\/li\u003e\n\u003cli\u003eCommon diagram reference: \u003cstrong\u003e#8\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eVolvo Penta part number: \u003cstrong\u003e3858078\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eReplaces earlier reference \u003cstrong\u003e854532\u003c\/strong\u003e in supported diagrams\u003c\/li\u003e\n\u003cli\u003eGenuine OEM Volvo Penta replacement reference\u003c\/li\u003e\n\u003cli\u003eCommon supplier weight reference: approximately \u003cstrong\u003e0.03–0.09 lb\u003c\/strong\u003e, depending on listing source\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThis seal is primarily \u003cstrong\u003ehydraulic trim pump and transom\/drive installation specific\u003c\/strong\u003e, rather than engine-displacement specific. Supporting application references list use with Volvo Penta hydraulic trim pump \/ trim instrument assemblies on applications including \u003cstrong\u003eAD41L-A, AD41P-A, D41L-A\u003c\/strong\u003e, and transom \/ drive groups such as \u003cstrong\u003eTSK DP-E, TSK DP-S, TSK DPX-C, TSK SX-M, TSK SX-MAC, TSK SX-MACLT, and TSK SX-MDA\u003c\/strong\u003e depending on serial number and trim pump configuration.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eSeal fitment depends on the exact Volvo Penta trim pump assembly, reservoir \/ cover design, transom shield, drive package, and serial number range. Always confirm compatibility using the Volvo Penta parts diagram before ordering, especially where older reference \u003cstrong\u003e854532\u003c\/strong\u003e has been replaced by \u003cstrong\u003e3858078\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplace this seal if the trim pump reservoir or cover area is leaking, the seal is flattened, swollen, hardened, cut, missing, or damaged during trim pump service. A worn trim pump seal can allow oil leakage, air entry, low fluid level, or repeat service around the hydraulic trim pump assembly.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eClean the sealing groove and mating surface before installation. Inspect the reservoir, cap \/ cover, filters, small parts kit, and pump housing while the assembly is apart. Lightly lubricate the seal with the correct trim fluid where appropriate, seat it evenly, and avoid twisting or pinching it during reassembly.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAlternate\/Superseded Part Numbers\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3858078\u003c\/li\u003e\n\u003cli\u003eVolvo Penta 3858078\u003c\/li\u003e\n\u003cli\u003eVP3858078\u003c\/li\u003e\n\u003cli\u003eVOLVO-3858078\u003c\/li\u003e\n\u003cli\u003e854532 — earlier reference replaced by 3858078 in supported diagrams\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eParts Desk Insight\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThis seal is easy to confuse with a generic O-ring, but the safest match is the exact hydraulic trim pump diagram location. If the trim pump is already open, checking the reservoir, cap, filters, and small parts kit at the same time can prevent chasing another small leak later.\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":43564032688164,"sku":"3858078","price":24.2,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/images_371ec3e0-4f52-4727-a513-bc31bd282be4.jpg?v=1777670868","url":"https:\/\/marisolmarine.com\/products\/volvo-penta-hydraulic-trim-pump-seal-3858078","provider":"Marisol Marine Company","version":"1.0","type":"link"}