{"product_id":"sierra-high-performance-marine-gear-lube-1-quart-18-9650-2","title":"Sierra High Performance Marine Gear Lube — 1 Quart | 18-9650-2","description":"\u003ch2\u003eSierra High Performance Marine Gear Lube — 1 Quart\u003c\/h2\u003e\u003cp\u003eSierra High Performance Marine Gear Lube is a premium SAE 90 hypoid gear oil formulated specifically for the demanding conditions of marine outboard and sterndrive lower units. It provides reliable lubrication and protection for gears, bearings, and seals in the lower unit — where high loads, water contamination risk, and wide temperature ranges make lubricant quality critical to long-term reliability.\u003c\/p\u003e\u003cp\u003eThis 1-quart (946 mL) size is the standard quantity for a lower unit service on most outboard and sterndrive applications. It meets or exceeds OEM specifications for major marine engine manufacturers including Mercury, Yamaha, Johnson\/Evinrude, and OMC.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVolume: 1 quart (946 mL)\u003c\/li\u003e\n\u003cli\u003eViscosity: SAE 90 hypoid\u003c\/li\u003e\n\u003cli\u003eApplication: Outboard and sterndrive lower units\u003c\/li\u003e\n\u003cli\u003eOEM Compatibility: Meets or exceeds Mercury, Yamaha, Johnson\/Evinrude, OMC specifications\u003c\/li\u003e\n\u003cli\u003ePart Number: 18-9650-2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBest Use Case:\u003c\/strong\u003e This gear lube is the correct choice for annual lower unit service on most outboard and sterndrive engines where the OEM specifies an SAE 90 hypoid gear oil. Changing the lower unit gear lube annually — or after any water intrusion event — is one of the most important and often overlooked maintenance tasks on a marine engine. Milky or discoloured gear lube is a sign of water contamination through a failed seal, and catching it early prevents catastrophic gear damage. One quart is the correct quantity for most single lower unit services; larger outboards or sterndrives may require two quarts — check your engine service manual for the correct fill volume before ordering. Always confirm your engine manufacturer’s gear lube specification before substituting an aftermarket product.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Gear lubricants are considered a hazardous material for shipping purposes. Ground shipping only — not available for air freight.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eEstimated Packaging: Bottle approximately 6\" × 4\" × 4\" (15 × 10 × 10 cm), approx. 1.1 kg shipped.\u003c\/em\u003e\u003c\/p\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43564074762276,"sku":"SIE-18-9650-2","price":28.82,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/images_6717c093-9371-4bd7-8faf-08b5c3443a94.jpg?v=1784053031","url":"https:\/\/marisolmarine.com\/products\/sierra-high-performance-marine-gear-lube-1-quart-18-9650-2","provider":"Marisol Marine Company","version":"1.0","type":"link"}