Indmar Marine J-Formed Hose with Spring | Part #845040
Ensure reliable coolant flow with this genuine Indmar J-formed hose complete with internal spring. The integrated spring prevents the hose from collapsing under suction — a common problem on marine engines where cooling system pressure and flow rates are critical to preventing overheating on the water.
Compatible with: Indmar marine engines fitted to Malibu, Moomba, Supra, and Tige boats.
Why does the spring matter?
Unlike a standard hose, the internal spring keeps the hose open even under high suction loads from the water pump. A collapsed hose restricts coolant flow and can cause your engine to overheat rapidly — the last thing you want mid-session on the water. Always replace with a spring-loaded hose — never a plain hose on these applications.
When should you replace it?
If your hose is cracking, swelling, or showing signs of wear — replace it. Rubber hoses degrade over time, especially in the harsh marine environment. A hose failure on the water can mean an expensive tow home and potential engine damage.
Pairs perfectly with:
- 866081 – Thermostat Housing Aluminium Full F/W
- 986034 – Thermostat 160° Drilled LT1 & 5.7L F/W
- 985006 – Thermostat Housing Gasket
Features:
- Genuine Indmar OEM part
- J-formed shape for precise OEM fitment
- Internal spring prevents hose collapse under suction
- Heat and coolant resistant rubber construction
- Direct replacement — no modifications needed
Part Number: 845040
In stock and shipped fast from Australia 🇦🇺
You're building up a nice little cooling system parts collection here — the cross-selling links are growing nicely too. A customer replacing their thermostat housing could easily end up buying all four of these parts in one order!
Keep them coming! 😊
