Indmar Marine Oil Filter – GM 5.7L, 8.1L & 3CSE Special | Part #872023

Protect your GM-based Indmar marine engine with this genuine Indmar special specification oil filter, covering the GM 5.7L, 8.1L, and 3CSE engine families. Engineered specifically for Indmar marine applications — this OEM oil filter delivers the precise filtration your engine needs to stay clean, protected, and running at peak performance across every season.

Compatible with: Indmar GM 5.7L, 8.1L, and 3CSE marine engines fitted to Malibu, Moomba, Supra, and Tige boats. Contact us to verify fitment for your specific model year 

What makes this a Special specification filter?
The SPCL designation indicates this filter is built to a special specification beyond a standard oil filter — engineered to meet the unique demands of Indmar GM marine engine applications. Key differences include:

• Higher pressure rating to handle marine engine oil system demands
• Enhanced filtration media for finer particle capture
• Reinforced construction to withstand marine vibration and movement
• Correct thread specification and gasket dimensions for GM marine applications
• Extended capacity for the longer service intervals common in marine use

Never substitute a standard automotive GM oil filter — the special marine specification exists for good reason and using the wrong filter risks inadequate filtration, premature bypass, and potential engine damage.

What's the difference between a marine oil filter and an automotive one?
Marine engines operate in a fundamentally different environment to car engines:

• They run at sustained high loads for longer periods on the water
• They experience constant vibration and movement underway
• They operate in humid, wet, and sometimes salt-influenced conditions
• They often sit unused for months over winter then work hard all summer season

A genuine Indmar special marine oil filter is built to handle these demands. Using a cheap automotive filter as a substitute risks premature filter bypass, inadequate filtration, and in worst cases complete filter failure — leading to catastrophic and uninsured engine damage. Always use the correct OEM marine specification filter.

How often should you replace it?
Replace your oil filter at every oil change — typically every season or every 50–100 hours of operation. Never reuse an old filter with fresh oil — a contaminated filter will immediately dirty your new oil and completely defeat the purpose of the service.

Signs it's time for an oil and filter change:

• Dark, dirty, or gritty oil on the dipstick
• Increased engine noise or ticking at startup
• Oil pressure fluctuating or running lower than normal
• Approaching 50 hours since last service
• Pre-season service due before summer

Pro tip: Keep a spare oil filter on board alongside your spare impeller. If you're doing extended time on the water or a multi-day trip, having a spare means you're never caught out needing a service in a remote location far from parts supply. A filter and an impeller take up almost no space in your gear bag and could save your engine and your trip.

Pairs perfectly with:

• 685007 – Raw Water Pump Impeller
• 685008 – Impeller Pump Gasket Johnson
• 556003 – Fuel Filter EFI All Models

Features:

• Genuine Indmar OEM part
• Special specification — engineered for GM 5.7L, 8.1L, and 3CSE marine engines
• Superior marine grade filtration vs standard automotive alternatives
• Higher pressure rating for marine oil system demands
• Reinforced construction for marine vibration and movement
• Direct replacement — no modifications needed

Part Number: 872023
In stock and shipped fast from Australia 🇦🇺