Sierra Ignition Coil 18-5179-1, Replaces OMC 582508, for Johnson/Evinrude Outboard Engines

The Sierra 18-5179-1 is a replacement ignition coil designed for use with Johnson/Evinrude outboard engines. It delivers the spark energy the ignition system needs to fire the engine's spark plugs, and each package includes one ignition coil. Sierra builds this coil to meet or exceed the performance of the original equipment part it replaces, making it a straightforward swap for a failing or worn factory coil.

The coil is fit specific to the Johnson/Evinrude outboard engines it is designed for, so buyers should confirm part numbers before ordering to ensure proper fit. It measures 4 x 1.7 x 0.6 inches and uses a screw-in or bolt-on style installation, keeping the replacement process simple for anyone servicing their own outboard ignition system.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-5179-1
• Item Dimensions: 4 x 1.7 x 0.6 inches
• Weight: 0.33 pounds
• Installation Type: Screw-In or Bolt-On
• Unit Count: 1
• Included Components: Ignition Coil
• Vehicle Service Type: PWC
• OEM Cross Reference: GLM 72010, Mallory 9-23107, CDI 183-2508, Johnson/Evinrude 0582508, OMC 582508

Fitment

Designed for use with Johnson/Evinrude outboard engines. Fit specific; check part numbers to ensure proper fit before ordering.

Replaces (OEM)

• GLM 72010
• Mallory 9-23107
• CDI 183-2508
• Johnson/Evinrude 0582508
• OMC 582508

Frequently Asked Questions

What engines does the Sierra 18-5179-1 ignition coil fit? The Sierra 18-5179-1 is designed for use with Johnson/Evinrude outboard engines. It is fit specific, so check part numbers against your engine before ordering to ensure proper fit.

Is the Sierra 18-5179-1 the same as OMC 582508? Yes, the Sierra 18-5179-1 ignition coil is interchangeable with OMC 582508, along with GLM 72010, Mallory 9-23107, and CDI 183-2508.

How many ignition coils come in the package? One ignition coil is included per package with the Sierra 18-5179-1.

What are the dimensions of this ignition coil? The Sierra 18-5179-1 measures 4 x 1.7 x 0.6 inches.

How much does the Sierra 18-5179-1 ignition coil weigh? It weighs 0.33 pounds.

How is the Sierra 18-5179-1 installed? This ignition coil uses a screw-in or bolt-on installation type, allowing it to be mounted in place of the original coil during service.

Is the Sierra 18-5179-1 a genuine OEM part or an aftermarket replacement? The Sierra 18-5179-1 is an aftermarket replacement ignition coil built to meet or exceed the performance of the original equipment part it replaces, including OMC 582508.

What cross-reference numbers apply to the Sierra 18-5179-1? The Sierra 18-5179-1 cross-references to GLM 72010, Mallory 9-23107, CDI 183-2508, Johnson/Evinrude 0582508, and OMC 582508.

Can the Sierra 18-5179-1 be used on personal watercraft? Yes, this ignition coil is listed for PWC vehicle service type in addition to outboard engine applications.

Why would I need to replace my outboard's ignition coil? An ignition coil like the Sierra 18-5179-1 wears out over time and can cause misfires or a no-start condition; replacing it with a fit-specific coil restores reliable spark delivery to the engine.