{"product_id":"merc-1251","title":"Mercury MerCruiser Quicksilver — Oil Pan Stud Nut — 8M0148822","description":"\u003ch2\u003eMercury MerCruiser Quicksilver Oil Pan Stud Nut 5\/16-18 – 8M0148822\u003c\/h2\u003e\u003cp\u003eKeep your oil pan hardware exactly as the factory intended. The genuine Mercury MerCruiser Quicksilver 8M0148822 is a 5\/16-18 oil pan stud nut used on select GM-based MerCruiser gasoline engines, securing the oil pan reinforcement to the oil pan studs for a firm, even clamp on the pan gasket. It replaces earlier Mercury nut 11971.\u003c\/p\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser 4.3L \/ 262 CID V6\u003c\/li\u003e\n\u003cli\u003eMerCruiser 5.7L \/ 350 V8\u003c\/li\u003e\n\u003cli\u003eMerCruiser 350 MAG \/ 350 MAG MPI\u003c\/li\u003e\n\u003cli\u003eMerCruiser Black Scorpion 350 MAG\u003c\/li\u003e\n\u003cli\u003eMerCruiser MX 6.2L MPI \/ Black Scorpion 6.2L\u003c\/li\u003e\n\u003cli\u003eOther GM-based MerCruiser inboard, ski and sterndrive engines using the same oil pan stud arrangement\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eConfirm fitment against your engine serial number and oil pan parts diagram before ordering.\u003c\/p\u003e\u003ch3\u003ePart Details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 8M0148822\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Mercury MerCruiser \/ Quicksilver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Oil Pan Stud Nut\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 5\/16-18 UNC (.312-18)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Engine Lubrication \/ Oil Pan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagram position:\u003c\/strong\u003e Oil pan reinforcement to oil pan stud\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupersedes:\u003c\/strong\u003e 11971 \/ 11-11971\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical quantity:\u003c\/strong\u003e 2–4 per applicable assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New, genuine OEM\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGenuine Mercury Marine OEM fastener\u003c\/li\u003e\n\u003cli\u003eCorrect 5\/16-18 thread for the factory oil pan studs\u003c\/li\u003e\n\u003cli\u003eKeeps the original pan reinforcement hardware arrangement intact\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSerial Number Fitment Notice\u003c\/h3\u003e\u003cp\u003eMerCruiser used several different oil pan screws, studs and nuts across similar GM engine families. Verify fitment by OEM number and diagram position for your engine serial number.\u003c\/p\u003e\u003ch3\u003eWhen This Part Needs Replacement\u003c\/h3\u003e\u003cp\u003eReplace the nut if the threads or flats are damaged, corrosion is significant, or it no longer tightens correctly on the oil pan stud. Inspect the stud and reinforcement plate whenever the pan is removed.\u003c\/p\u003e\u003ch3\u003eRelated Parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e11989 – Oil Pan Stud\u003c\/li\u003e\n\u003cli\u003e14257 – Port Oil Pan Reinforcement\u003c\/li\u003e\n\u003cli\u003e14256 – Starboard Oil Pan Reinforcement\u003c\/li\u003e\n\u003cli\u003e8M0150304 \/ 8M0185584 – Oil Pan Gasket (application dependent)\u003c\/li\u003e\n\u003cli\u003e8M0077608 – Drain Screw Gasket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDoes this replace part 11971?\u003c\/strong\u003e\u003cbr\u003eYes. 8M0148822 is the current replacement for 11971 \/ 11-11971.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this the same as the oil pan screws around the pan?\u003c\/strong\u003e\u003cbr\u003eNo. This nut threads onto the oil pan reinforcement studs, not the surrounding pan screws.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat torque should I use?\u003c\/strong\u003e\u003cbr\u003eTighten to the service specification for your exact engine, as listed in the service manual.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBest use:\u003c\/strong\u003e Replacing damaged or corroded nuts on the oil pan reinforcement studs during an oil pan gasket job or pan service.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMost common mistake:\u003c\/strong\u003e Ordering this nut to replace the perimeter oil pan screws. It is used only on the reinforcement studs, so check the diagram position first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSizing and fitment:\u003c\/strong\u003e Thread is 5\/16-18 UNC. If you are replacing a full set, count the studs on your pan, as most applicable assemblies use 2–4 nuts, and match the OEM number to your engine serial number diagram.\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563921735716,"sku":"8M0148822","price":25.64,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/4e72fb9a-6847-4799-9444-f96bf85a3db5.png?v=1790290496","url":"https:\/\/marisolmarine.com\/products\/merc-1251","provider":"Marisol Marine Company","version":"1.0","type":"link"}