Clean oil is the foundation of a reliable, high-performing outboard, and the Mercury Outboard Oil Filter (35-877761K01) 4-Pack ensures your engine gets the protection it needs. Designed for 75-150 HP Mercury FourStroke models, this filter captures harmful contaminants before they can cause wear, keeping oil circulating smoothly and extending engine life. With four filters in one pack, routine maintenance is simple, and you’ll always have a spare when it’s time for a change.

Built for Engine Protection

• High-Efficiency Filtration – Traps microscopic particles that could lead to sludge buildup, helping to maintain cleaner oil for longer.
• Anti-Drain Back Valve – Prevents dry starts by retaining oil in the filter when the engine is off, ensuring immediate lubrication upon startup.
• Corrosion-Resistant Housing – Electroplated construction holds up against saltwater and harsh marine conditions, preventing rust and degradation.

Smart Maintenance for Uninterrupted Performance

Regular oil changes are a must for keeping an outboard at peak efficiency, and this four-pack ensures you're always prepared. Engineered for 75, 90, 115, and 150 HP EFI FourStroke outboards, these filters provide the durability and reliability needed for long days on the water. Stay ahead of maintenance and keep your engine running strong.

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