An outboard engine is only as reliable as the oil running through it, and keeping that oil clean is essential for smooth performance and long-term durability. The Mercury Outboard Oil Filter (35-877761K01) 2-Pack delivers high-efficiency filtration, protecting critical engine components from harmful contaminants that can cause wear and reduce efficiency. Designed for select 75-150 HP Mercury FourStroke outboards, this filter ensures consistent lubrication and peak performance in any conditions.

Engineered for Reliable Oil Flow

• Precision Filtration – Captures microscopic debris that can lead to buildup and premature engine wear, keeping oil cleaner for longer.
• Anti-Drain Back Valve – Prevents dry starts by maintaining oil in the filter when the engine is shut down, ensuring smooth startups.
• Corrosion-Resistant Housing – Built with a durable electroplated finish, it stands up to the harsh marine environment, including saltwater exposure.

Practical Maintenance for Peak Performance

Regular oil changes are the foundation of a healthy outboard engine, and having a backup filter ensures you’re never caught unprepared. Ideal for Mercury and Mariner FourStroke 75, 90, 115, and 150 HP EFI models, this two-pack keeps your maintenance routine on schedule while providing peace of mind that your engine is always running at its best.

Model Fitment:
75HP EFI - Serial Range 1B366823 Through 2B094995
80HP EFI - Serial Range 1B366823 Through 2B094995
90HP EFI - Serial Range 1B366823 Through 2B094995
100HP EFI - Serial Range 1B366823 Through 2B094995
105HP EFI Jet - Serial Range 3B672358 & Above
115HP EFI - Serial Range 1B366823 Through 2B094995
135HP EFI - Serial Range 2B131942 & Above
150HP EFI - Serial Range 1B905505 & Above
150HP EFI SeaPro - Serial Range 2B139139 & Above
150HP EFI Pro XS - Serial Range 2B550139 & Above