Automost ignition coil and spark plug set for Toyota 4‑cylinder UF333 — 4‑piece kit, restores smooth starts

Automost's Set of 4 UF333 ignition coils and spark plugs replaces worn components to restore reliable ignition for select Toyota, Lexus, Pontiac and Scion 4-cylinder engines.

If your engine is misfiring, stalling, or running roughly, old ignition coils and spark plugs are common culprits. This kit contains four ignition coils matched with spark plugs engineered to meet the fit and function expectations of many Toyota-family 2.0–2.4L engines from the early 2000s. It’s supplied as a complete set so you can replace all four cylinders at once and get consistent performance and smoother starts.

Which vehicles does this UF333 kit fit?

The set is designed for a range of Toyota-platform mid-2000s models and some related marques that share the same 4-cylinder ignition architecture. Confirm compatibility by checking your vehicle’s model year, engine displacement, and OE part numbers.

• Toyota Camry (2002–2008) 2.4L; Corolla models listed for 2008 and 2010 with specified engines
• Highlander (2001–2007) 2.4L; RAV4 (2001–2008) 2.0L and 2.4L depending on year
• Scion tC (2005–2010) 2.4L; Lexus and Pontiac Vibe compatible years also included
• Cross-reference OE numbers such as 90919-02243 / 90919-02244 and UF333 to verify fit

How do these ignition coils and spark plugs improve engine performance?

Replacing old coils and plugs helps restore consistent spark delivery across cylinders, which reduces misfires and helps the engine run more smoothly. New ignition parts can improve throttle response and steady idle without needing engine tuning.

• Replaces worn coils that can cause weak or intermittent spark
• Fresh plugs provide the correct gap for reliable combustion
• Full four-cylinder set ensures balanced ignition across the engine
• OEM-referenced part numbers for straightforward replacement

What should I check before ordering this replacement kit?

Before purchase, confirm your car’s model year and engine size against the compatibility list and OE part numbers. Use your vehicle profile or parts lookup to match 90919-02243 / 90919-02244, UF-333, C1330, or related numbers to avoid incorrect fitment.

• Verify engine displacement (2.0L, 2.4L, etc.) and model years listed
• Look up OE part numbers in your maintenance records or dealer parts system
• Enter your vehicle into your garage or VIN lookup before checkout
• Consider replacing all four coils/plugs together for consistent performance

Can I install this kit myself, and what tools are needed?

Basic mechanical skills and common hand tools are sufficient for most DIY installers; the job typically involves removing the engine cover, unplugging electrical connectors, and unbolting coils. If you’re unfamiliar with ignition work, a professional installation is recommended to avoid damage to ignition wiring and ensure correct torque on fasteners.

• Tools: ratchet, spark plug socket, torque wrench, extension, dielectric grease
• Typical time: 1–2 hours for the average DIYer depending on access
• Follow manufacturer torque specs and connector procedures to avoid issues
• Seek professional help if wiring or engine access is difficult

Who this is for: This Automost UF333 coil and spark plug set is made for owners of Toyota, Lexus, Pontiac Vibe and Scion vehicles in the listed years who need a complete ignition refresh. It’s a convenient choice for DIY mechanics who want a matched four-cylinder replacement or for shops performing routine maintenance and repair. Always confirm fitment against your vehicle’s exact year, engine code and OE part numbers before installing.