Sierra Ignition Wire Term.Mc20121 And 18-5224
Need several, or a formal quote? Send us a message.
- Ships from U.S. warehouses. Shipping cost is shown at checkout.
- 30-day returns on new, unused items in original packaging. Return policy
- Not sure it fits? Call (832) 308-3163, Mon–Thu 9–5, Fri 9–2 Central.
- Secure checkout with all major credit cards.
Description
This Sierra premium marine spark plug wire set is for 8 cylinder engines with conventional ignition. It is listed for Flagship, Indmar, Marine Power, Mastercraft, Mercruiser and OMC engines.
Features
- Magnetic Suppression Core manufactured for your specific application.
- Kevlar® core for maximum durability and long life
- Durable stainless steel wound conductor for maximum horsepower and engine performance
- Premium silicone jacketing and boots for the ultimate in high temperature protection
- Superior RFI suppression for the most sensitive electronic system
- Corrosion resistant stainless steel spark plug and distributor terminals for maximum conductivity
- OE style boots provide a sealed barrier against heat, dirt and moisture
- Thunderbolt type ignition
Specifications
- Application: Flagship, Indmar, Marine Power and Mastercraft (302, 351, 5.7L, 5.8L, 350, 454, 7.4L); Mercruiser (280, 330, 370, 400, 440, 460 and others); OMC (7.5L, King Cobra models)
- Engine: 8 cylinder, conventional ignition
- OEM numbers: Mercruiser 84-816761Q9, 84-816761Q10; OMC 503752, 503755
- Manufacturer part number: 18-8803-2
Specifications
- Brand
- Sierra
- Manufacturer part #
- 18-8803-2
- JMS SKU
- JMS149778
- UPC
- 808282194925
- Shipping weight
- 2.17 lb
Shipping
Most orders ship within 1–2 days from U.S. warehouses. You'll see the shipping cost and choose a method at checkout.
Returns
Return new, unused items in original packaging within 30 days. Defective items after 30 days follow the manufacturer's warranty. Return policy
Questions
Call (832) 308-3163 or send us a message. Have your boat's make, model and year handy.



