Sierra Distributor Cap & Rotor Kit – SIE-18-5244
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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Alternate / Superseded Part Numbers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. ⚓
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.