Distributor Cap – MerCruiser / OMC (Sierra 47-5385)
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Sierra Distributor Cap – MerCruiser & OMC Engines
Keep your ignition system firing on all cylinders with this direct-fit distributor cap designed for MerCruiser and OMC stern drive engines. Built to Sierra's marine-grade standards, this cap delivers reliable spark distribution and corrosion resistance in demanding on-water conditions — making it a smart choice for seasonal tune-ups or replacing a worn or cracked cap before it leaves you stranded.
Compatible Applications
- MerCruiser stern drive engines (replaces OEM part 393-9459 / 393-9459Q1)
- OMC stern drive engines (replaces OEM part 380541)
Specifications
- Part Number: 47-5385
- Replaces OEM: Mercury/MerCruiser 393-9459, 393-9459Q1 | OMC 380541
- Condition: New
Complete Your Tune-Up
For best results, replace the distributor cap and rotor together. Consider pairing this cap with the Arco DR002 MerCruiser/Volvo Rotor or the Arco DR003 MerCruiser/Volvo/OMC Rotor. Browse our full Ignition Components collection for spark plugs, wire sets, and more.
Parts Desk Insights
This distributor cap is best suited for boaters performing a seasonal engine tune-up or addressing a hard-start or misfiring condition on MerCruiser or OMC stern drives. If your engine is experiencing rough idle, intermittent spark, or visible cracks on the existing cap, this is a straightforward, cost-effective fix. Always inspect and replace the rotor at the same time — caps and rotors wear together and should be serviced as a pair for optimal ignition performance.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 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.