Indmar Marine Exhaust Elbow Catalyst Gasket – 5.7L Engine | Part #765006
Never reuse an old gasket — this genuine Indmar exhaust elbow catalyst gasket is the correct OEM replacement for the 5.7L engine and should be replaced every time the exhaust elbow is removed. A small, inexpensive part that plays a critical role in keeping your exhaust system sealed, your engine protected, and your boat compliant with Australian marine emissions standards.
Compatible with: Indmar 5.7L marine engines with catalyst exhaust elbow fitted to Malibu, Moomba, Supra, and Tige boats.
Why is this gasket so important?
The exhaust elbow gasket seals the connection between the exhaust manifold and the exhaust elbow — one of the highest heat and pressure points on your entire engine. A failed or reused gasket at this junction can allow:
- Exhaust gases to leak into the engine bay — a serious fire and carbon monoxide risk
- Water to enter the exhaust manifold — leading to catastrophic and expensive hydro-lock damage
- Loss of exhaust back pressure — reducing engine performance and efficiency
- Accelerated corrosion at the manifold face from moisture and exhaust gas contact
When should you replace it?
Replace this gasket every time you:
- Remove the exhaust elbow for any reason
- Replace the exhaust elbow itself
- Notice exhaust gas smell or smoke coming from the manifold area
- See water staining or corrosion around the elbow connection
- Carry out a major engine service
Pro tip: Always purchase this gasket at the same time as your exhaust elbow — 585018 \ 585017. Having it on hand before you start the job means no delays waiting for parts mid-service. Attempting to reuse the old gasket to save a few dollars risks a leaking exhaust joint and potentially thousands of dollars in engine damage.
Features:
- Genuine Indmar OEM part
- Designed specifically for 5.7L catalyst exhaust elbow applications
- High temperature and pressure rated for exhaust system use
- Precision cut for perfect OEM sealing surface fit
- Single use — always replace, never reuse
- Direct replacement — no modifications needed
Part Number: 765006
In stock and shipped fast from Australia 🇦🇺
