Repair Cost Guide

Catalytic converter replacement cost
for a Nissan Sentra

Replacing the catalytic converter on a Nissan Sentra involves removing the old, failed unit from the exhaust system and installing a new one. The cost is primarily driven by the price of the converter itself, which contains precious metals, and the labour required to access and unbolt it, which can vary based on the vehicle's age and corrosion.

$800 – $2200
Typical fair price range · USD

Cost breakdown

Parts: ~$400-$1600 / Labour: ~$150-$400

What affects the price

OEM vs. aftermarket converter (OEM is significantly more expensive)
Vehicle model year and engine size affecting part availability and cost
Rust and corrosion on exhaust bolts increasing labour time

Can you do it yourself?

Possible with skill — requires jacking up the car safely, penetrating oil for rusty bolts, and basic wrenching knowledge.

Tips before you pay

Verify the exact part number for your specific Sentra year and engine, as fitment varies.
Consider a universal-fit converter for significant cost savings if local emissions laws permit.
Have penetrating oil ready and expect to cut or heat severely rusted bolts/nuts.

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More cost guides

Brake pads replacement — Nissan Sentra Alternator replacement — Nissan Sentra Timing belt replacement — Nissan Sentra

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.