Description
SIERRA Port Cylinder-Head Cooling Hose for Johnson/Evinrude V4 – 18-70937 is the port-side molded cylinder-head hose used on specified Johnson/Evinrude V4 outboard cooling systems.
It replaces OE hose references 340976 and 321723 on selected 88, 90, 100, 112 and 115 HP applications. The matching starboard-side hose is Sierra 18-70936.
Key Features
- Port-side cylinder-head hose
- Fits selected Johnson/Evinrude V4 outboards
- Application range includes specified 88-115 HP models
- Replaces OE hose 340976/321723 where cataloged
- Molded port-side routing supports proper fit in the specified engine cooling circuit.
Specifications
- Manufacturer Part Number: 18-70937
- Product Type: Molded cylinder-head cooling hose
- Side: Port
- Engine Family: Selected Johnson/Evinrude V4
- Typical HP Range: 88-115 HP
Interchange / Cross Reference
- Johnson/Evinrude 340976
- Johnson/Evinrude 321723
Fitment varies by model and year; verify the OE hose number before ordering.
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