Ignition Coil Pack Set of 6 DG520 for Ford Mercury Mazda Lincoln

In this review the Ignition Coil Pack Set of 6 DG520 is judged primarily as a budget-friendly replacement for owners of naturally aspirated V6 3.5L and 3.7L Ford, Lincoln, Mercury and Mazda vehicles who need to restore engine performance quickly. The review finds the kit best for drivers who want a full-bank swap to cure misfires, rough idle and reduced power without paying dealer prices; the single biggest reason to buy is that these coils provide a direct, OE-level replacement across many model years and specific part numbers for an economical, straightforward repair.

Key Features

• Wide vehicle coverage: Fits many Ford, Lincoln, Mercury and Mazda V6 3.5L and 3.7L models across several model years, reducing the risk of ordering the wrong coil when fitment is checked first.
• Set of 6: Supplied as a full-bank replacement so owners can replace all cylinders at once to ensure balanced ignition and consistent engine performance.
• OE-level durability: Built to a direct-replacement standard and tested to avoid misfire after extensive cycles so drivers can expect reliable operation for normal use.
• Multiple OEM part cross-references: Listed part numbers such as DG520, UF553 and others make it easier to match the unit to the vehicle's original coil part number.
• Addresses common ignition symptoms: Replacing faulty coils restores lost power, improves idle smoothness and can help recover fuel economy by supplying proper voltage to spark plugs.

Who It's For

This coil pack set is aimed at DIY mechanics and independent shops working on naturally aspirated V6 3.5L and 3.7L engines in Ford Edge, Explorer, F-150, Flex, Fusion, Mustang, Transit variants and Lincoln or Mazda models listed in the fitment. It is also a practical choice for owners who prefer to replace all coils at once to avoid repeat labor and to restore consistent ignition across the bank.

Those who should look elsewhere are owners of turbocharged or non-V6 engines, or anyone whose vehicle wiring harness or connector differs from the listed fitment, since some customers reported plug connection fitment variation. Always verify exact compatibility with your vehicle before ordering.

Pros & Cons

Pros

• Restores engine power and smooth idle when original coils have failed.
• Cost-effective full set of six reduces the chance of mixed-old-and-new coil issues.
• Easy installation for most DIYers, saving on labor compared with dealer replacement.

Cons

• Some users reported variability with the electrical plug fit, so careful compatibility checks are required.
• Designed only for naturally aspirated V6 3.5L and 3.7L engines; not suitable for other engine types.

Specifications

Product type	Ignition coil pack set of 6
Compatible engines	V6 3.5L and 3.7L naturally aspirated
Vehicle fitment highlights	Ford Edge, Explorer, F-150, Flex, Fusion, Mustang; Lincoln MKS/MKT/MKX/MKZ; Mazda 6, CX-9; Mercury Sable
Included part numbers	DG520, UF553, UF-553 and multiple cross references
Quantity	Set of 6 coils
Durability note	OE-level durability; tested to avoid misfire for many miles

Our Verdict

The DG520 ignition coil pack set is a practical, value-minded choice for owners of compatible V6 3.5L and 3.7L Ford, Lincoln, Mercury and Mazda vehicles who need to eliminate misfires and restore engine smoothness. It offers straightforward, OE-level replacement at a lower price than dealer coils, but buyers must confirm electrical connector compatibility and that their engine is naturally aspirated before purchasing.

Frequently Asked Questions

Will this set fix a misfire?
Yes; replacing failing coils with a matched full set often resolves misfires caused by weak or failed ignition coils, provided spark plugs and wiring are in good condition.

Does this fit turbo models?
No; this set is intended only for naturally aspirated V6 3.5L and 3.7L engines listed in the fitment information.

How do I confirm fitment?
Verify the part numbers and the vehicle model years and engine type against your vehicle, and check the electrical connector before installation to avoid ordering the wrong coils.