Ignition Coil Pack UF247 and Iridium Spark Plugs 4503 Set of 4

In this review of the ignition coil pack UF247 and iridium spark plugs 4503 set, the bottom line is simple: this kit is for owners of 1.8L L4 Chevy, Toyota and Pontiac models who need a direct, cost-effective replacement that restores reliable spark and drivability. The reviewer found the kit's biggest selling point to be its OE-equivalent fit and straightforward installation, which makes it a practical choice for DIY mechanics who want to fix misfiring, rough idling, or poor fuel economy without sourcing multiple parts separately.

Key Features

• Multivehicle compatibility: The kit lists specific OE coil and plug numbers and fits many Chevy, Toyota and Pontiac 1.8L L4 models, reducing compatibility guesswork when the OE numbers match.
• OE standard fit: Coils and plugs are made to meet or exceed OE form, fit and function so they install directly into the engine without modification.
• Heat-resistant construction: High temperature materials are used to withstand heat stress, which helps maintain reliable spark output under normal driving conditions.
• Complete kit: Includes four ignition coils, four iridium spark plugs and a manual, so a full bank service can be completed in one job.
• Quality testing: Components are tested under strict quality control to reduce common ignition faults like misfire, backfire and check engine illumination.

Who It's For

This kit is aimed at owners of compatible vehicles - Chevy Prizm (2000-2002), Toyota Celica and MR2 Spyder (2000-2005), Corolla (2000-2008 depending on year) and Matrix and Pontiac Vibe models listed - who need a bank replacement of coils and plugs and prefer a ready-made set. It is also a good fit for home mechanics who value ease of installation and want to restore running quality without sourcing parts separately.

Customers who should look elsewhere include owners of vehicles outside the listed model years or those who cannot confirm OE part numbers; because the listing emphasizes matching OE numbers like UF247 and 4503, anyone unsure about compatibility should verify before purchase or consult a dealer for a factory part.

Pros & Cons

Pros

• Direct replacement fit that matches OE specifications for form and function.
• Complete four-pack of coils and plugs provides convenient full-bank servicing.
• Good value for money with consistent customer reports of improved engine smoothness and reliable operation.

Cons

• Compatibility depends on matching specific OE numbers and year/make/model; not universal.
• Some buyers may prefer OEM-branded parts for dealership service history.

Specifications

Our Verdict

This coil pack and iridium plug kit is a practical, cost-effective replacement for owners of the listed 1.8L L4 vehicles who can confirm OE numbers. It delivers an OE-style fit, tested performance and the convenience of a full-bank kit, making it a good value for DIY repairs and restoring reliable engine operation.

Frequently Asked Questions

How do I confirm compatibility?
Check the vehicle year/make/model and match the coil OE number (UF247 and alternates) and spark plug OE number 4503 before purchasing.

Is installation difficult?
Installation is generally straightforward for someone comfortable with basic engine work since the parts are direct replacements designed for plug-and-play fit.

Does the kit help clear misfires and rough idle?
Yes, the set is intended to address common ignition faults like misfiring, stalling and poor idling when the cause is worn coils or plugs.