Sierra 18-6503 Rewind Spring, Replaces Johnson/Evinrude 318944

The Sierra 18-6503 Rewind Spring is a recoil starter spring built for Johnson and Evinrude outboard motors. It is designed as a direct replacement for the original equipment rewind spring, engineered to meet or exceed the quality of the OEM part it replaces. This spring is a core component of the manual starter (recoil) assembly, storing tension as the starter cord is pulled and then retracting the cord back onto the pulley so the starter is ready for the next pull. A worn, weakened, or broken rewind spring is one of the most common reasons a recoil starter fails to retract the cord properly or loses spring tension over time, and replacing it restores proper starter operation without needing to replace the entire recoil housing assembly.

The Sierra 18-6503 is finished in white and is sold as a single spring. It carries the Sierra brand's standard limited warranty and is intended for technicians and boat owners performing recoil starter service or rebuilds on compatible Johnson and Evinrude outboard motors. Because rewind springs are fit-specific to the recoil assembly they are installed in, buyers should confirm the original part number against 318944 before ordering to ensure proper fit.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-6503
• Product Name: Rewind Spring
• Weight: 0.51 pounds
• Color: white
• Engine Type: Gasoline
• Mounting Type: Engine Mount
• Unit Count: 1 count
• UPC: 030999320339

Fitment

• Johnson/Evinrude outboard motors using recoil starter assemblies compatible with rewind spring 318944

Replaces (OEM)

• 318944

Frequently Asked Questions

What does the Sierra 18-6503 Rewind Spring replace? The Sierra 18-6503 Rewind Spring is a direct replacement for OEM part number 318944 used on Johnson and Evinrude outboard motors.

What is a rewind spring used for? A rewind spring is the coiled spring inside a manual recoil starter that retracts the starter cord back onto the pulley after each pull, and the 18-6503 performs this function in compatible Johnson/Evinrude recoil starter assemblies.

How much does the 18-6503 rewind spring weigh? The Sierra 18-6503 Rewind Spring weighs 0.51 pounds.

What color is the Sierra 18-6503 rewind spring? It is finished in white.

Is the Sierra 18-6503 an OEM part or aftermarket? The 18-6503 is a Sierra aftermarket rewind spring engineered to meet or exceed the quality of the original 318944 OEM spring it replaces.

How many springs come in a package? The 18-6503 is sold as a single rewind spring, one unit count per package.

Will this spring fit any Johnson or Evinrude outboard? The 18-6503 is fit-specific and designed for recoil starter assemblies that originally used spring 318944, so the original part number should be confirmed before ordering.

What engine type is the 18-6503 rewind spring designed for? It is designed for gasoline-powered outboard motor engines.

Does the Sierra 18-6503 come with a warranty? Yes, the Sierra 18-6503 Rewind Spring is covered by Sierra's limited warranty.

What is the UPC for the Sierra 18-6503 rewind spring? The UPC for the Sierra 18-6503 Rewind Spring is 030999320339.