How Much Does Spark Plug Replacement Cost?
Spark plug replacement costs vary depending on your engine type and whether you supply your own plugs.
| Repair / Service | Cost (NJ) |
|---|---|
| Standard spark plug replacement (4-cylinder engine) | $100 – $200 |
| Spark plug replacement (V6 or V8 engine) | $180 – $400 |
| High-performance or iridium spark plug replacement | $250 – $500 |
| Labor only (you supply the spark plugs) | $80 – $150 |
Schedule your Car Spark Plug Replacement in NJ with Three Brothers Auto Repair Service today for a smoother, more efficient ride.
Labor only (you supply the spark plugs). Not sure which option fits your car? If you already have your spark plugs on hand, our labor-only service gets them installed correctly and torqued to spec.
Call 201-935-5100 Book an appointment370 Paterson Ave, East Rutherford · Mon–Sat 8:00 AM–6:00 PM
Keep Your Engine Smooth, Efficient & Powerful
Spark plugs play a vital role in your engine's performance—they ignite the air-fuel mixture that powers your vehicle. Over time, spark plugs wear out, leading to poor fuel economy, sluggish acceleration, and engine misfires.
At Three Brothers Auto Repair Service, we provide professional car spark plug replacement in NJ to keep your engine running at peak efficiency and reliability.
Signs Your Car Needs Spark Plug Replacement
Engine misfires or rough idling can point to worn-out spark plugs.
Sluggish acceleration or loss of power is a common symptom of failing plugs.
Difficulty starting the engine often traces back to worn ignition components.
Decreased fuel efficiency can result from spark plugs that no longer ignite fuel properly.
A check engine light triggered by ignition-related codes should not be ignored.
Engine knocking or pinging sounds can signal spark plug trouble.
What Our Car Spark Plug Replacement Service Includes
We check spark plug condition, ignition coils, and related components for wear or damage.
We safely remove worn plugs without damaging the cylinder head.
We install OEM-grade or premium spark plugs matched to your vehicle's specifications.
We ensure correct spark plug gap and tighten to factory-recommended torque settings for optimal performance.
After replacement, we test for smooth idling, strong acceleration, and proper ignition function.
Why Three Brothers Auto Repair?
At Three Brothers Auto Repair Service, run by Mike, Tony, and Dave Henderson, we treat every engine like it's our own—replacing worn spark plugs on time helps protect your engine, improve performance, and reduce emissions, so you get a smoother, more efficient ride every time.
- Same-day service on most jobs — most repairs done same or next day
- Transparent pricing — the same ranges you see on our pricing page, no hidden fees
- OEM-quality parts with manufacturer warranties
- Text and photo updates during the repair
- Honest calls — if a cheaper fix does the job, we’ll tell you
- Poor Fuel Economy: — Worn spark plugs make your engine work harder, burning more fuel than it should.
- Engine Misfires: — Ignoring rough idling or misfires can lead to bigger ignition system problems.
- Loss of Power: — Sluggish acceleration only gets worse the longer worn plugs stay in place.
- Higher Emissions: — Faulty spark plugs reduce combustion efficiency, increasing emissions output.
Keep your engine firing on all cylinders—schedule your Car Spark Plug Replacement in NJ with Three Brothers Auto Repair Service today for a smoother, more efficient ride.