Mercury Quicksilver 10W-30 Oil Change Kit — 150 HP FourStroke | OEM 8M0188357

Mercury Quicksilver 10W-30 Oil Change Kit — 150 HP FourStroke | OEM 8M0188357

Everything you need for a complete engine-oil service on a Mercury or Mariner 150 HP FourStroke outboard — in a single OEM kit. Mercury has packaged the exact oil grade, the correct filter, a drain hose, and service instructions together so there’s no guesswork about compatibility or quantities. This is the 10W-30 synthetic-blend kit designed specifically for the conventional 150 HP FourStroke; it is not interchangeable with the 25W-40 Verado kit.

Part Information

• OEM Part Number: 8M0188357
• Brand: Mercury / Quicksilver
• Official Product Type: 10W-30 4-Stroke Outboard Oil Change Kit
• Supersedes: 8M0107512
• Oil Grade: SAE 10W-30 Synthetic Blend 4-Stroke Marine Engine Oil
• System: Engine lubrication
• GTIN / UPC: 678633154720

Kit Contents

• 6 x 1-litre bottles of Mercury SAE 10W-30 Synthetic Blend Marine Engine Oil (6 litres total)
• 1 x Mercury Quicksilver Oil Filter 35-877761K01
• 1 x oil drain hose / tube
• Oil-change service instructions

Compatible Applications

• Mercury 150 HP FourStroke outboards using SAE 10W-30 oil and filter 35-877761K01
• Mariner 150 HP FourStroke outboards with the same oil and filter specification
• Confirm engine model and serial number before ordering — Mercury offers separate oil-change kits for the L4 Verado 150–200 HP (25W-40) and other 150 HP-class engine families; this kit is for the conventional FourStroke only

Related Parts

• Mercury Quicksilver Oil Filter 877761K01 — 75–150 HP FourStroke Outboard (included in this kit)
• Mercury Quicksilver 100 Hour Service Kit — 8M0094232
• Mercury Quicksilver 100 Hour Service Kit — 8M0097854

Service Interval

Engine oil and filter should be changed every 100 hours of operation or annually, whichever comes first — or as specified in your Mercury outboard owner’s manual for the 150 HP FourStroke.

Installation Notes

• Warm the engine to operating temperature before draining to ensure full oil evacuation
• Drain the used oil completely using the included drain hose
• Replace the oil filter before refilling
• Refill with the supplied 6 litres of 10W-30 marine engine oil
• Start the engine, check the oil level, and inspect the filter and drain area for leaks before returning to service

Technical FAQ

Is this kit compatible with the Verado 150–200 HP?
No. The Mercury Verado L4 150–200 HP uses a 25W-40 oil specification and a different kit part number. 8M0188357 is the 10W-30 kit for the conventional Mercury/Mariner 150 HP FourStroke only. Always confirm using your engine’s model and serial number.

What did 8M0188357 replace?
8M0188357 supersedes 8M0107512. If you have been ordering 8M0107512 for your 150 HP FourStroke, 8M0188357 is the current OEM replacement kit.

Can I use a different oil or filter with this kit?
Mercury recommends using OEM-spec oil and filter for all scheduled services. The 10W-30 synthetic-blend formula in this kit includes marine-specific corrosion inhibitors and is formulated to maintain viscosity under high-temperature, high-RPM outboard operation.

Parts Desk Insights

The most common ordering mistake with Mercury oil-change kits is mixing up the conventional FourStroke kit (10W-30, this part) with the Verado kit (25W-40, different part number) — they look similar but are not interchangeable. Always ask for the engine model and serial number before confirming. The all-in-one kit format is the best choice for customers doing their own oil service, since it eliminates the risk of buying the wrong filter or short-changing the oil quantity. See the full Mercury Engine Maintenance Parts collection for spark plugs, anodes, and 100-hour service kits.