Sierra Distributor Cap & Rotor Kit SIE-18-5244

Sierra SIE-18-5244 is a marine distributor cap and rotor kit for selected late-model GM V8 marine ignition applications. Current listings describe it as a flat distributor cap and rotor service kit, commonly supplied with the mounting screws for a complete cap-and-rotor replacement.

Key Features

• Distributor cap and rotor kit
• Sierra part number: 18-5244
• Commonly listed as including 1 flat distributor cap, 1 rotor, and 4 screws
• Marine ignition tune-up replacement kit
• Designed as a direct replacement service set for matching distributor applications.

Engine Compatibility
Current aftermarket fitment listings commonly tie Sierra 18-5244 to late-model Mercury MerCruiser 5.0L, 5.7L, and 6.2L V8 multi-port injection Alpha, Bravo, sterndrive, and inboard applications using ECM 555, and to selected Volvo Penta sterndrive engines in the 225 HP to 320 HP range. Because cap-and-rotor fitment is distributor-specific, fitment should still be confirmed by engine model, serial number, and distributor setup before ordering.

Serial Number Fitment Notice
Fitment should be confirmed by engine model and serial number, along with the installed distributor and ignition configuration, before ordering. This kit is best matched by the original cap-and-rotor application rather than by engine family alone.

When This Part Needs Replacement
Replace when the engine shows misfire, hard starting, rough running, carbon tracking inside the cap, burned rotor contact surfaces, corrosion on the terminals, or visible cracking and wear. Distributor cap and rotor wear can directly affect spark delivery and ignition reliability.

Installation Notes
Install only on the correct flat-cap marine distributor application. Confirm the replacement kit matches the removed cap, rotor, and screw pattern before installation. Because this kit may be cross-listed across several marine V8 applications, distributor style and original part match are more reliable than appearance alone.

Alternate / Superseded Part Numbers

• 18-5244
• 18-5244-1
• 185244
• 1852441

Parts Desk Insight
The key match point on SIE-18-5244 is the distributor family and flat-cap layout. Current public sources are consistent on the kit contents, but much less precise on exact OEM cross-reference detail, so the safest way to get this one right is to match the existing cap style, engine serial number, and ignition setup directly.

Shipping: Ships same or next day for fast Canada wide shipping.