How much does a catalytic converter cost on a Ford Fiesta?

A Ford Fiesta catalytic converter replacement typically costs anywhere from a few hundred to about two thousand dollars, depending on parts and labor choices. The exact price varies by model year, engine, and your location.

In this article we explore what drives the price, lay out typical cost ranges for new OEM, aftermarket, and used parts, and offer tips for getting accurate quotes. Readers should know that prices can vary based on shop rates, regional labor costs, and whether additional repairs are needed during the replacement.

What drives the price

The following factors commonly influence the total cost of replacing a catalytic converter on a Ford Fiesta.

• Part choice: OEM (dealer) catalytic converters are usually more expensive but come with a warranty and guaranteed fit; aftermarket direct-fit converters are generally cheaper but vary in warranty coverage and compatibility.


• Vehicle specifics: Fiesta models differ by engine type (for example, 1.0L EcoBoost vs. 1.6L) and exhaust layout, which can affect part price and installation complexity.


• Labor costs: Labor rates differ by region and shop; urban and high-cost areas typically charge more.


• Additional components: Replacing the catalytic converter may also require new oxygen sensors, gaskets, flanges, or exhaust clamps, adding to the total.


• Emissions warranty: In the United States, catalytic converters can be covered under federal emissions warranties (often up to 8 years/80,000 miles) if the car is eligible and within the warranty period.

These factors together shape the bottom line, so quotes can vary widely even for the same Fiesta model.

Typical price ranges

Prices below refer to installed costs (parts plus labor) for common Ford Fiesta configurations in the United States. Your local market may differ.

1. New OEM catalytic converter installed: approximately $750–$2,150, depending on model year and exhaust setup.


2. Aftermarket direct-fit catalytic converter installed: approximately $250–$900.


3. Used or salvaged catalytic converter installed: approximately $150–$650.


4. If additional repairs are required (e.g., replacement of sensors or exhaust piping): these add-on costs can range from a few hundred dollars to more, depending on what's needed.

When getting quotes, ensure the estimate clearly lists parts and labor separately and states whether a warranty is included for the converter and the workmanship.

Saving money and getting accurate quotes

Tips to help you manage costs and avoid surprises when replacing a catalytic converter on a Fiesta.

• Shop around: Get multiple written quotes from dealers, independent exhaust shops, and mobile repair services.


• Ask about warranties: OEM parts may come with longer warranties; inquire about coverage for both parts and labor.


• Consider the part option carefully: If you’re aiming to save, aftermarket direct-fit parts are typically cheaper than OEM, but verify compatibility and warranty terms.


• Explore emissions warranty eligibility: If your Fiesta is still within the federal Emissions Warranty window, some costs may be covered by the manufacturer.

Remember to verify that any used or salvaged catalytic converter is in good condition and compatible with your specific Fiesta, and confirm that it complies with your state’s emissions requirements.

Summary

Replacing a Ford Fiesta catalytic converter can range from a few hundred to several thousand dollars, largely influenced by the choice of part (OEM vs aftermarket vs used), labor rates, and any ancillary repairs. In many cases, an aftermarket direct-fit converter installed will be the most cost-effective option, while OEM parts offer guaranteed fit and warranty. Always obtain multiple written quotes, confirm what is included in the price, and check for applicable emissions warranty coverage. For Fiesta owners, especially those in states with strict emissions rules, planning ahead and verifying compatibility is essential to avoid delays and unexpected costs.

Can I still drive with a bad catalytic converter?

You can technically drive with a bad catalytic converter, but it's not recommended, especially if it's clogged, as it can lead to engine damage, poor performance, and potential legal issues. If the converter is simply inefficient but not blocked, you may be able to drive for a while, but if it becomes clogged, it can cause severe issues like engine misfires or a total loss of power, as the exhaust cannot escape. A professional diagnosis is needed to determine the extent of the problem. 
This video explains the symptoms of a bad catalytic converter: 1m8020 AutomotiveYouTube · Apr 14, 2024
Risks of driving with a bad catalytic converter

• Engine damage: A clogged converter can cause extreme back pressure, which can damage engine components like crankshafts, rings, and bearings over time. 
• Poor performance: You may experience a significant loss of power, engine misfires, rough idling, and an inability to accelerate past a certain speed. 
• Legal issues: In many areas, it is illegal to drive with a faulty or missing catalytic converter, and you could be fined or fail an emissions test. 
• Increased emissions: A failing converter will not properly clean the exhaust, leading to increased pollution. 

What to do if you suspect a bad catalytic converter

• Avoid driving: If you suspect a clogged converter, it is best to avoid driving the car to prevent further damage. 
• Get a professional diagnosis: Have a mechanic diagnose the issue to determine if the converter is clogged or just inefficient. 
• Consider towing: If you have to move the vehicle, consider using a tow truck to take it to a repair shop. 

You can watch this video for more information on the risks of driving with a bad catalytic converter: 47sTalkingTechTrendsYouTube · Apr 21, 2025

Is it worth replacing a catalytic converter?

Yes, replacing a catalytic converter is often worth it to avoid legal penalties, significant engine damage, and poor performance. While the initial cost is high, driving without one is not recommended due to the risk of failing emissions tests, a loud engine, reduced fuel efficiency, and potential damage to other engine components. 
Reasons to replace your catalytic converter 
This video explains the reasons why replacing a catalytic converter is worth it: 49sStudent LessonYouTube · Sep 18, 2023

• Avoid legal and inspection issues: Many states require a working catalytic converter to pass emissions and smog tests for vehicle registration. Driving without one is illegal in most places. 
• Prevent engine damage: A malfunctioning or clogged converter can cause the engine to work harder, leading to sluggishness, misfires, and other issues. Continued driving can lead to more extensive and costly engine damage or failure. 
• Improve vehicle performance: A new converter will restore engine performance, improve acceleration, and can prevent other problems like stalling. 
• Increase fuel efficiency: A clogged converter can decrease your gas mileage, so replacement can improve your fuel economy. 
• Reduce harmful emissions: The primary function of a catalytic converter is to reduce harmful pollutants from your vehicle's exhaust, which is beneficial for the environment. 

When to consider replacement

• Signs of a problem: Look for symptoms like reduced engine power, a sulfur or rotten egg smell from the exhaust, poor acceleration, or a loud rattling noise from the exhaust system. The "check engine" light is often a sign of a failing catalytic converter, but it could also be triggered by other engine issues, so a proper diagnosis is important. 
• Cost vs. long-term cost: Even though replacement is expensive, the cost of ignoring the problem can lead to even more expensive engine repairs down the line. 
• Repair vs. replacement: If the catalytic converter is damaged, get an estimate for both repair and replacement. Often, replacement is the better option if the repair cost is similar to a new part. 

How much to replace catalytic converter on a Ford Fiesta?

The cost for a Ford Fiesta Catalytic Converter Replacement is typically between £226 and £673.

How to cheaply fix a catalytic converter without replacing it?

If the catalytic converter itself is solid, it can be repaired very cheaply. An exhaust shop can weld in metal tubing for almost nothing. If they can simply replace the broken connection with a piece of straight exhaust tubing and weld it directly to the catalyst, this can likely be done for under $100.