Mercury – Quicksilver Oil Filter | Engine Lubrication System | Corrosion-Resistant Steel | 19485

Overview

When you’re running a diesel-powered MerCruiser, keeping oil clean is everything. The Mercury Marine 19485 Quicksilver Oil Filter is built specifically for MerCruiser diesel engines, using advanced filtration to protect against wear, corrosion, and oil breakdown. Designed with M-Pleated media, a heavy-duty steel shell, and an anti-drain back valve, it delivers the kind of dependable performance diesel engines demand. Whether you’re cruising for hours or working your vessel hard, this filter keeps oil flowing clean and strong — so your engine stays protected no matter what.

Key Features

• Purpose: Filters contaminants from engine oil to protect internal components and maintain performance.
• Material: Constructed with a 50% thicker corrosion-resistant steel shell for added strength.
• Design Detail: Features M-Pleated cleansing media that traps microscopic particles more effectively than standard filters.
• Performance: Built-in anti-drain back valve ensures startup lubrication, preventing dry starts.
• Durability: Epoxy-coated internal components resist corrosion for long filter life in marine conditions.
• Compatibility: Fits MerCruiser diesel engines including D2.8L E (88010000 and below), D3.0L (0D725460 and up), D3.6L (0F306903 and up), D4.2L (0F450250 and up), D4.2L E, D183, D219, 530D-TA, and 636D-TA models.

Engine & Boat Compatibility

• MerCruiser diesel sterndrives and inboards built by VM and Mercury Marine.
• Works across a range of D-Series engines from 2.8L to 4.2L displacement.
• Commonly used on cruisers, trawlers, and commercial boats with diesel propulsion.
• Suitable for use in freshwater and saltwater environments.

Performance & Practical Benefits

The 19485 oil filter provides clean, consistent oil flow for diesel engines that run hot, hard, and long. The multi-pleated filter media captures fine contaminants that can cause wear or damage, while the anti-drain back valve ensures that oil is available immediately at startup — eliminating dry running.

The thicker steel casing stands up to the pressure and vibration unique to marine diesel applications, while the corrosion-resistant finish protects it from salt and humidity. It’s a rugged, reliable filter designed for the kind of duty your MerCruiser diesel engine was built to handle.

Why Buy OEM

Diesel engines demand filters that can stand up to pressure, flow rate, and fine filtration — and that’s where OEM quality matters most. The Quicksilver 19485 is a genuine Mercury Marine part, designed for the specific oil systems in MerCruiser diesel engines. Cheaper filters might fit, but they can restrict flow or fail to filter effectively under load.

Mercury’s engineering ensures every filter meets exact factory standards for filtration, pressure tolerance, and corrosion protection. It’s the kind of part you can install once and forget about, knowing it’s protecting one of the most valuable systems in your boat.

FAQ

Q1: Which engines use the 19485 oil filter?
It fits MerCruiser diesel engines including D2.8L E, D3.0L, D3.6L, D4.2L, D4.2L E, D183, D219, 530D-TA, and 636D-TA models.

Q2: What makes this filter different from standard ones?
It has M-Pleated media for finer filtration, a thicker shell, and an anti-drain back valve to prevent dry starts.

Q3: Can it handle long run times?
Yes — it’s built for high-pressure, high-temperature diesel engine conditions.

Q4: Is it safe for saltwater operation?
Absolutely. Its shell and internal coating resist corrosion in marine environments.

Q5: How often should it be replaced?
Follow your engine’s service manual, but most operators replace the oil filter during every oil change cycle.