Quicksilver Oil Filter for Mercury/Mariner 25–115 HP 4-Stroke Outboards (8M0162830)

The Quicksilver 8M0162830 Oil Filter is a genuine Mercury Marine part that delivers dependable filtration for a broad range of Mercury and Mariner four-stroke outboards. Whether you have a compact 25hp engine or a robust 115hp workhorse, this filter is engineered to fit and perform. Quicksilver filters use high-efficiency filter media that captures microscopic particles like metal shavings, carbon, and sludge, preventing them from circulating through your engine. By maintaining cleaner oil, it helps uphold proper lubrication of critical components such as crankshaft bearings and camshafts, especially under heavy loads or high RPM. Boaters and marine professionals trust Quicksilver because it’s designed by Mercury specifically for their engines, ensuring you get the right oil flow rate and pressure.

• One Filter for Multiple Engines: This filter replaces and consolidates several older filter part numbers, meaning one model covers Mercury/Mariner outboards 25, 30, 40, 50, 60, 75, 90, and 115 HP (including EFI FourStroke series). It’s also compatible with certain Tohatsu-built Mercury engines (25/30 HP 4-strokes), reflecting the partnership between Mercury and Tohatsu in this range. You get an exact fit and seal, no matter the model, ensuring leak-free operation.
• Use Cases and Versatility: Perfect for a wide variety of boats – from small inflatables and aluminum fishing boats with 25–30 HP motors, through mid-sized console boats and runabouts with 40–60 HP, up to larger RIBs and bowriders powered by 75–115 HP engines (typically boats about 4 to 6+ meters long). Whether you’re a recreational boater, fishing guide, or use your outboard commercially, this filter handles the demands of both light and heavy use.
• Maintenance Made Simple: Mercury recommends changing the oil and filter every 100 hours or annually. This Quicksilver filter’s spin-on design makes maintenance quick and hassle-free – a typical DIY job that can be done with basic tools. Replacing a clogged or old filter on schedule ensures consistent oil pressure and can prevent costly engine wear or damage. Always prime the new filter with a bit of fresh oil and tighten per the manufacturer’s instructions for best results.
• Quality Assurance: With Quicksilver, you are getting Mercury’s OEM-level quality. The 8M0162830 filter features a robust metal casing and gasket built to marine standards for corrosion resistance. It won’t collapse under high pressure and is tested to function in the harsh marine environment (salt, moisture, wide temperature ranges). By using this genuine filter, you maintain engine warranty compliance and guarantee that your Mercury/Mariner outboard will continue to run at peak efficiency.