ENA Ignition Coil Set of 4 for Mercury Verado & EFI 75–400 HP - Direct-Fit OEM Replacement, Restores Spark

ENA's set of four ignition coils replaces OEM units on many Mercury Verado and EFI outboards, restoring reliable spark delivery across 75–400 HP engines.

If your Mercury outboard is showing misfires, hard starting, or uneven power delivery, the ignition coils can be a frequent cause. This ENA four-pack is engineered as a direct-fit replacement for part numbers like 19005251, 339-880615T01, and 8M0039809, and covers a broad range of Mercury Verado and EFI models from 75 through 400 horsepower. The kit arrives with a one-year limited warranty and is intended for technicians and owners who need a dependable, like-for-like swap.

Will these coils fit my Mercury outboard model?

These ENA coils are made to match OEM form and function for many Mercury Verado and EFI engines. They are listed as compatible with Mercury 75, 80, 90, 100, 115 EFI and Verado 135–400 models. Always cross-check your engine’s part number or enter vehicle details when available to verify fitment before purchase.

• Direct replacements for 19005251, 339-880615T01, 8M0039809
• Compatible with Mercury 75–115 EFI series
• Covers Verado range: 135, 150, 175, 200, 225, 250, 275, 300, 350, 400
• Sold as a set of four coils for multi-cylinder engines

How do these coils affect engine performance?

Ignition coils transform low-voltage electrical current into the high-voltage pulses the spark plugs need. Replacing worn or failed coils can restore consistent spark timing, reduce misfires, and improve throttle response without altering the engine’s tuning. However, they do not change engine power ratings — they help the existing system run as intended.

• Promotes stable ignition across cylinders
• Can reduce rough idling and intermittent misfires
• Helps maintain smooth acceleration and fuel efficiency
• Designed to match OEM electrical connections and mounting points

Is installation straightforward or should I use a mechanic?

Installation is generally straightforward for anyone comfortable working on outboards: remove the cowling, disconnect wiring, unbolt the old coil, and install the new unit in reverse order. That said, if you lack experience with ignition systems, engine timing, or waterproof electrical connections, a qualified marine technician ensures proper installation and testing.

• Direct-fit design minimizes modifications
• Basic hand tools required for most installations
• Inspect spark plugs and wiring while replacing coils
• Professional installation recommended for warranty validation in some cases

What warranty and quality assurances come with the product?

The ENA coil set includes a one-year limited warranty that covers manufacturing defects under normal use. Keep your proof of purchase and follow installation guidelines to remain eligible for coverage. The product is sold as an aftermarket replacement designed to meet OEM specifications for form, fit, and function.

• 1 Year Limited Warranty included
• Manufacturing-defect coverage under normal operating conditions
• Sold as a set of four for multi-cylinder engines
• Compatible part numbers listed for easier cross-referencing

Who is this for: The ENA Set of 4 Ignition Coils is suited to boat owners, marine mechanics, and fleet operators running Mercury Verado or EFI outboards who need reliable, cost-effective replacements. Choose this kit if you want a direct-fit aftermarket option that aligns with common Mercury part numbers and provides a one-year limited warranty for peace of mind.