Arco IG010 Ignition Coil — Mercury DFI Outboard & Racing Sterndrive 110–250HP
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
OEM-Grade Ignition Coil for Mercury DFI Outboards and Racing Sterndrives
The Arco IG010 is a direct-fit replacement ignition coil covering two distinct Mercury applications: Direct Fuel Injection (DFI) outboard engines from 2005 onward, and Mercury Racing QC4V high-performance sterndrive engines. Whether you’re servicing a performance outboard or a race sterndrive, the IG010 delivers OEM-spec spark output to keep these demanding powerplants running at their best.
Compatible Applications
- Mercury DFI Outboard 110 Jet HP (2005 and newer)
- Mercury DFI Outboard 135 HP (2005 and newer)
- Mercury DFI Outboard 150 HP (2005 and newer)
- Mercury DFI Outboard 175 HP (2005 and newer)
- Mercury DFI Outboard 200 HP (2005 and newer)
- Mercury DFI Outboard 225 HP (2005 and newer)
- Mercury DFI Outboard 250 HP (2005 and newer)
- Mercury Racing 1100 QC4V Sterndrive
- Mercury Racing 1350 QC4V Sterndrive
- Mercury Racing 1650 QC4V Sterndrive
Replaces OEM Part Numbers
- Mercury: 300-8M0077471, 339-879984A1, 339-879984T00
- Sierra: 18-5159
- CDI Electronics: 184-0003
Parts Desk Insights
The IG010 serves two very different customer profiles — the performance outboard owner running a DFI Mercury, and the high-performance sterndrive operator with a Mercury Racing QC4V. On the outboard side, it’s the go-to coil for misfires, rough running, or no-spark conditions on DFI engines from 2005 onward. On the sterndrive side, it’s a precision component for the 1100, 1350, and 1650 QC4V race applications where ignition reliability is critical. Always confirm your engine’s model and fuel system type (DFI vs. standard) before ordering. For standard Mercury outboard ignition coil applications outside the DFI range, see the Arco IG005 Ignition Coil. For other Mercury ignition coil options, see the Arco IG011 Ignition Coil.
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.