Skip to content
FREE SHIPPING ON ORDERS OVER $100. Exclusions apply.
FREE Shipping on Orders over $99. Exclusions apply.

Sierra 18-5186 Ignition Coil Mercury/Mariner

SKU SIE18-5186
Brand Sierra
Availability :
2 in stock
Original price $54.99 - Original price $54.99
Original price
$54.99
$54.99 - $54.99
Current price $54.99

Simple Returns & Same Day Shipping*

30-Day Return Policy. In-stock items ship same day if ordered by 2:00 PM EST. Place overnight & 2-day orders by 1:00 PM EST. Orders after these times ship the next business day. *Shipping Policy

Need It Fast?

We offer Local Delivery & Expedited Shipping through our trusted logistics partners, as well as FREE In-Store Pick Up.

Need Help From Our Sales Team?

Available during our normal business hours:

Used on the following engines:
-6, 8, 9.9 HP - S/N A197112 & Up *
-210CC Sail Power - S/N A918999 & Up *
-15 HP - S/N B292414 *
-18 HP - S/N 5705532 - B238463 *
-20 HP - S/N 6443973 - G760299 *
-25 HP - S/N 5705532 - G760299 *
-30 Jet - S/N C159200 - G589999
-35 HP - S/N 6445653 - & Up
-40 HP 2-Cylinder - S/N 3859435 - 5823917 *
-40 HP 4-Cylinder - S/N C159200 - G589999 ***
-45, 50 HP 4-Cylinder - S/N 5531630 & Up ***
-50, 55, 60 HP 3-Cylinder - S/N 6428681 - G589999 **
-70 HP Mariner - S/N 5128280 & Up **
-70 HP - S/N 5579016 - 6428680
-70, 75 HP 3-Cylinder - S/N C272000 - D283221 **
-75 HP 4-Cyldinder - S/N 6432901 & Up ***
-80 HP Mariner 4-Cylinder - S/N 5144547 & Up ***
-80 HP Mercury 4-Cylinder - S/N 5582562 - 6432900 ***
-80HP 4-Cylinder - S/N 5141097 - 6432900
-80HP 3-Cylinder - S/N A996142 - C221999 **
-90HP 6-Cylinder - S/N 5299506 & Up ****
-90 HP 3-Cylinder - S/N A996142 - D283221 **
-90 HP 3-Cylinder - S/N D283222 - G437999
-100 HP 4-Cylinder - S/N B209468 - 6437999 ***
- 105 Jet S/N - D082000 - G303045 ****
-115 HP 6-Cylinder S/N - 5314656 & Up ****
-125 HP 4-Cylinder - S/N - D283222 - G437999
-V-135 HP S/N - A904646 & Up ****
-140 HP - S/N 5327663 & Up ****
-140 Jet - S/N D082000 - G960499 ****
-V-150 HP - S/N 5129480 - G9604999 ****
-V-150 HP XR2 - S/N 6616991 - A904645 ****
-XR4 Magnum II - S/N - B242885 - D819999 ****
-V-150 HP XR6 - S/N - D820000 - G960499 ****
-V-175 HP EFI, XR1 - S/N - 5180109 - G960499 ****
-V-200 HP XR1 - S/N - 5158929 - G960499 ****
-V-220 HP - S/N - B117316 & Up ****
-V-225 HP - S/N - 5628028 & Up ****

* Two Required
** Three Required
*** Four Required
**** Six Required

Replacement for Mercury/Mariner Outboard #339-7370A13

Brand: Sierra

Ship Length: 3.1

Ship Width: 2.5

Ship Height: 2.3

WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to www.p65warnings.ca.gov

Backorder Policy: Occasionally, due to demand or supplier delays, some items may be temporarily out of stock or non-stock items. To ensure you can still get the products you need, you can order items even when they're out of stock. Our sales team will update you with the shipping lead time. Once back in stock, we promptly ship your item, and if your order includes both in-stock and backordered items, we may split the shipment. You can cancel your backorder before shipment, and request a refund to original payment method. For any inquiries, contact us at sales@freeportmarine.com.