Repair Cost Guide

Spark plugs replacement cost
for a Ford Explorer

This repair involves replacing all six or eight spark plugs (depending on engine) to restore proper ignition and engine performance. The cost is primarily driven by the engine type, as the V6 is more accessible while the V8's rear plugs are difficult to reach, requiring significant labour time.

$240 – $450
Typical fair price range · USD

Cost breakdown

Parts: ~$40-$120 / Labour: ~$200-$330

What affects the price

Engine type (3.5L V6 vs. 5.0L V8) drastically changes labour time for rear bank access
Whether using standard copper or premium platinum/iridium plugs
If other services like ignition coils or wires are replaced simultaneously

Can you do it yourself?

Possible with skill — The V6 is straightforward, but the V8 requires removing the intake manifold to reach rear plugs, which is complex.

Tips before you pay

On the 5.0L V8, replace the intake manifold gasket when removing it for plug access
Use a torque wrench to avoid cracking the aluminium cylinder heads
Consider replacing all ignition coils if they are original and high-mileage

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More cost guides

Brake pads replacement — Ford Explorer Alternator replacement — Ford Explorer Timing belt replacement — Ford Explorer

Estimate based on typical U.S. market rates as of July 2026. Actual prices vary by region, shop, and parts quality — always compare against a real quote using our Scam Checker.