Description
SIERRA Molded Cooler-to-Thermostat Hose for MerCruiser V6/V8 – 18-70935 is a preformed cooling-water hose for selected MerCruiser V6/V8 engines using the cooler-to-thermostat-housing connection.
Applications include specified 4.3L/LX, 5.0L/LX, 5.7L/LX and 350 Mag configurations. The molded shape preserves the intended bend and clearance around adjacent engine components.
Key Features
- Connects oil/power-steering cooler to thermostat housing
- Fits selected 4.3L/LX MerCruiser engines
- Fits selected 5.0L/LX and 5.7L/LX engines
- Also covers specified 350 Mag applications
- Molded form helps prevent routing kinks and interference
Specifications
- Manufacturer Part Number: 18-70935
- Product Type: Molded cooling hose
- Connection: Cooler to thermostat housing
- Engine Families: 4.3L / 5.0L / 5.7L / 350 Mag
- Application: Selected MerCruiser sterndrive/inboard engines
Interchange / Cross Reference
- MerCruiser 32-806856
- Mallory 9-44054
Confirm cooler arrangement, engine serial number and original hose before ordering.

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