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Ignition Coil and Iridium Spark Plugs for Ford Transit Connect (2014-2021) 2.5L



Regular price $74.95
Sale price $74.95 Regular price
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Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2014-2021 Ford Transit Connect

What it Does: Restores high-voltage secondary ignition output and precise flame kernel propagation across all four cylinders to eliminate misfires, rough idle, and sluggish throttle response in commercial fleet and daily service.

The Stock Transit Connect Ignition Degradation

Under continuous commercial duty cycles and high underhood thermal stress, factory coil packs suffer internal dielectric breakdown within their primary and secondary copper windings. This leads to intermittent voltage leaks, carbon tracking down the plug boots, and reduced spark energy. Simultaneously, standard factory spark plugs experience accelerated ground electrode erosion and gap enlargement, elevating the required firing voltage beyond what aged coils can reliably sustain under heavy payload acceleration.

The Engineering Solution

This complete tune-up kit pairs four heavy-duty coil-on-plug (COP) assemblies with four fine-wire iridium spark plugs. The ignition coils feature premium internal copper windings and high-dielectric epoxy potting that resist thermal fatigue and moisture intrusion. Matched with high-melting-point iridium center electrodes, this package delivers a consistent, high-energy spark, ultra-fast transient response, and stable combustion under high-load operating conditions.

Technical Specifications

Fitment 2014-2021 Ford Transit Connect
Engine / Chassis 2.5L Duratec 25 I4 / V408
Stock Output 169 hp / 171 lb-ft (Approx)
Part Number FD505, FD-505, UF621, UF-621

Compatibility

  • 2014-2021 Ford Transit Connect XL (2.5L L4 Gas)
  • 2014-2021 Ford Transit Connect XLT (2.5L L4 Gas)
  • 2014-2021 Ford Transit Connect Titanium (2.5L L4 Gas)

The Ford Commercial Reliability Standard

Engineered for work vans and fleet haulers requiring uninterrupted uptime, this ignition refresh guarantees dependable cold-start ignition, optimal fuel economy, and factory-correct diagnostic communication without triggering OBD-II misfire codes.


Engine Safety Rating
Difficulty 


Fitment

Make

Ford

Engine Size

  • 2.5L

Year

  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 2020
  • 2021

Warranty

All products are backed by our Limited Lifetime Warranty. We stand by our quality. [See terms]

Ignition Coil and Iridium Spark Plugs for Ford Transit Connect (2014-2021) 2.5L

$74.95