Sierra Condenser 18-5205, Replaces OMC 581419, for Evinrude Outboard Motors 15-40 HP

The Sierra Condenser 18-5205 is a round, snap-in mount ignition condenser built as a direct replacement for the OMC 581419 condenser used in Evinrude outboard tune-up service. It is rated for an upper temperature of 105 degrees Celsius, allowing it to withstand the heat generated inside the ignition system during normal engine operation. The condenser suppresses voltage spikes across the ignition points, protecting the points from arcing and pitting so the ignition system fires consistently and the points last longer between services.

This condenser is a core component of Evinrude outboard tune-up service and is commonly replaced together with points and other ignition wear parts during a scheduled tune-up. It fits Evinrude outboard motors across a range of horsepower ratings, including 15, 18, 20, 25, 28, 33, 35, 40, and 99 HP models, so boat owners should confirm their engine's horsepower and model year against the fitment list before ordering. Weighing 0.02 pounds, it is a small, lightweight replacement part designed to install in the same location and orientation as the original OMC condenser it replaces.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-5205
• Item Type: Condenser
• Shape: Round
• Mounting Type: Snap-In Mount
• Upper Temperature Rating: 105 Degrees Celsius
• Weight: 0.02 pounds
• UPC: 030999236852
• Application: Evinrude Outboard Tune Up Kit component
• OEM Cross Reference: OMC 581419

Fitment

• Evinrude 15 HP (1974-1976)
• Evinrude 18 HP (1962-1973)
• Evinrude 20 HP (1968-1973)
• Evinrude 25 HP (1969-1976)
• Evinrude 28 HP (1962-1964)
• Evinrude 33 HP (1965-1970)
• Evinrude 35 HP (1976)
• Evinrude 40 HP (1962-1976)
• Evinrude 99 HP (1974-1976)

Replaces (OEM)

• OMC 581419

Frequently Asked Questions

What does the Sierra 18-5205 condenser replace? It replaces the OMC 581419 condenser, making the Sierra 18-5205 a direct equivalent for that ignition component in Evinrude outboard tune-up service.

Which Evinrude outboards does the 18-5205 condenser fit? Fitment covers Evinrude outboards at 15 HP (1974-1976), 18 HP (1962-1973), 20 HP (1968-1973), 25 HP (1969-1976), 28 HP (1962-1964), 33 HP (1965-1970), 35 HP (1976), 40 HP (1962-1976), and 99 HP (1974-1976); confirm your engine's horsepower and model year match the 18-5205 listing before ordering.

What shape and mounting style is this condenser? The 18-5205 is a round condenser with a snap-in mount, designed to install in the same mounting location as the original OMC 581419 unit.

How much does the 18-5205 condenser weigh? It weighs 0.02 pounds, consistent with a small ignition-system component of this type.

What temperature is the 18-5205 condenser rated for? The condenser carries an upper temperature rating of 105 degrees Celsius, so it can handle the heat generated near the ignition points during engine operation.

Is the Sierra 18-5205 an OEM part or an aftermarket replacement? The 18-5205 is a Sierra-brand replacement condenser engineered to match the fit and function of the original OMC 581419 condenser, rather than a part sourced from OMC/Evinrude directly.

What is the UPC for the Sierra 18-5205 condenser? The UPC for the Sierra condenser 18-5205 is 030999236852.

What is a condenser used for in an outboard ignition system? In an Evinrude outboard ignition system, the condenser (Sierra 18-5205) absorbs voltage spikes across the ignition points, reducing arcing so the points stay cleaner and the ignition fires reliably.

Is the 18-5205 condenser sold with points or other tune-up parts? The 18-5205 is sold as a standalone condenser; it is commonly installed alongside other ignition components such as points during a full outboard tune-up.

What comes in the box with the Sierra 18-5205? Each Sierra 18-5205 order includes one condenser unit, ready to install in place of the OMC 581419 it replaces.