Part Number: 811135D
Indmar 811135D Raw Water to Oil Cooler Hose
Keep your marine cooling system operating efficiently with the Indmar 811135D Raw Water to Oil Cooler Hose. Designed as a genuine OEM replacement, this hose routes cooling water between the raw water system and oil cooler to help maintain proper engine and oil temperatures during operation.
The raw water to oil cooler hose plays an important role in the marine cooling system by ensuring consistent water flow through the oil cooler assembly. Over time, cooling hoses can become brittle, soft, cracked, or weakened from exposure to heat, pressure, vibration, and moisture inside the engine compartment. Replacing worn hoses helps prevent leaks, maintain cooling system efficiency, and reduce the risk of overheating or oil temperature issues.
Manufactured to Indmar factory specifications, the 811135D hose is built using durable marine-grade rubber designed for long-term reliability in demanding freshwater and saltwater environments. Designed as a direct-fit replacement, it provides dependable fitment and straightforward installation for compatible Indmar engine applications.
Common Engine & Boat Fitments
The Indmar 811135D raw water to oil cooler hose is commonly used on select Indmar marine engines, including:
- Indmar Assault 5.7L
- Indmar Monsoon 325
- Indmar Monsoon 340
- Indmar Raptor 6.2L
- Indmar Raptor 6.2L Supercharged
- Indmar 6.0L MPI applications
These engines are frequently found in:
Supra Models
- Supra SA
- Supra SL
- Supra SE
- Supra SR
- Supra Sunsport series
Moomba Models
- Moomba Mojo
- Moomba Kaiyen
- Moomba Makai
- Moomba Max
- Moomba Craz
Additional applications may include Malibu and MasterCraft boats equipped with compatible Indmar engine packages.
The 811135D hose is commonly used in raw water cooling systems where maintaining proper circulation through the oil cooler is essential for dependable engine performance and temperature control.
Fitment may vary depending on engine serial number and cooling system configuration, so confirming compatibility with part number 811135D before ordering is recommended.
Key Features
- Genuine Indmar OEM cooling system hose
- Designed for raw water to oil cooler circulation applications
- Helps maintain proper cooling system and oil cooler performance
- Marine-grade rubber construction for durability and long service life
- Resistant to heat, moisture, and harsh marine environments
- Direct-fit replacement for straightforward installation
Why Replace Cooling System Hoses?
A deteriorated hose can leak, collapse, or restrict water flow, reducing cooling system efficiency and increasing the risk of overheating. Replacing aging hoses helps maintain reliable cooling performance and dependable operation throughout the boating season.
If you’re servicing an Indmar-powered Supra, Moomba, Malibu, or MasterCraft, the 811135D raw water to oil cooler hose delivers the OEM-quality fit and durability your cooling system depends on.