Sierra 18-3566 Tell Tale Hose Elbow, Replaces 331894, for Johnson and Evinrude Outboards
Sierra 18-3566 Tell Tale Hose Elbow, Replaces 331894, for Johnson and Evinrude Outboards
The Sierra 18-3566 Tell Tale Hose Elbow is a small cooling-system fitting that connects the tell tale (pee stream) indicator hose to the outboard's water pump discharge outlet, giving the operator a visible stream of water that confirms the cooling system is circulating properly while the engine runs. It is molded from durable plastic with a machined finish and features a 3/8 inch hose barb on one end to accept the tell tale hose and a 1/8 inch NPT threaded connection on the other end for installation into the powerhead or pump housing fitting.
This elbow is designed for Johnson and Evinrude outboard applications and is a direct cross-reference for the OEM part it replaces, so it installs and functions the same as the original fitting. Its compact size and simple two-connection design make it an easy, low-cost replacement when the original elbow cracks, clogs, or breaks from age and vibration.
Specifications
- Brand: Sierra
- Manufacturer Part Number: 18-3566
- Hose Barb Size: 3/8 inch
- Thread Size: 1/8 inch NPT
- Thread Type: NPT
- Material: Plastic
- Color: White
- Exterior Finish: Machined
- Connector Type: Elbow
- Dimensions: 0.39 x 0.39 x 0.39 inches
- Weight: 0.01 pounds
- Compatibility: Johnson and Evinrude outboards
Fitment
Fits Johnson and Evinrude outboard applications that use a tell tale hose elbow fitting.
Replaces (OEM)
- 331894
Frequently Asked Questions
What does the Sierra 18-3566 Tell Tale Hose Elbow do? It connects the tell tale indicator hose to the outboard's water pump discharge fitting, letting the operator see a stream of water while the engine runs to confirm the cooling system is pumping properly.
What outboards is the 18-3566 elbow designed for? The 18-3566 elbow is designed for use in Johnson and Evinrude outboard applications.
What OEM part number does the 18-3566 replace? Sierra part 18-3566 replaces Johnson/Evinrude OEM number 331894.
What size hose barb does this elbow have? The 18-3566 elbow has a 3/8 inch hose barb for connecting the tell tale hose.
What thread size connects the elbow to the powerhead? It threads in with a 1/8 inch NPT connection on the fitting end opposite the hose barb.
What material is the 18-3566 tell tale hose elbow made from? It is molded from plastic with a machined finish and a white color.
How much does this part weigh? The Sierra 18-3566 Tell Tale Hose Elbow weighs 0.01 pounds.
What are the dimensions of the 18-3566 elbow? It measures 0.39 x 0.39 x 0.39 inches.
Is the Sierra 18-3566 a genuine equivalent to the original equipment part? Yes, the 18-3566 is built to meet or exceed the original equipment part it replaces, part number 331894.
When would I need to replace this elbow? Replace the 18-3566 tell tale hose elbow if the original fitting cracks, clogs, or breaks, causing a weak or absent tell tale water stream.
What is included when I order the 18-3566? The order includes one Sierra 18-3566 Tell Tale Hose Elbow.
Does the 18-3566 elbow require any additional parts to install? No additional parts are required; the 3/8 inch barb end accepts the existing tell tale hose and the 1/8 inch NPT end threads directly into the mating fitting.