This photo shows the same type of part you'll receive. Since each used part has its own wear and scratches, yours may look slightly different. Check the product notes for condition details or ask us for pictures of the actual part.
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2012 - 2016 BMW Z4 Front Catalytic Converter (OEM)
Only 1 left in stock
Price today
$665.95
− $100 core refund
Return your old catalytic converter core to get your $100 refund. Contact us after installation and we'll send you a prepaid return label.
YOUR NET COST
$565.95
after returning your old part
✓ Prepaid core return label
✓ EPA RE-CERTIFIED CATALYTIC CONVERTER
What is a recertified catalytic converter? A converter that has been performance tested and passes EPA guidelines for certified converters. Each unit includes a permanent tag with its part number, recertification facility, and date of recertification.
1-Year Warranty (parts only, no labor)
OEM bolt-on design (not weld-in)
Donor vehicle VIN available on request
Return your old cat to receive $100 refund
⚠️State Restriction: Due to emissions regulations, re-certified catalytic converters cannot be shipped to California or New York. If you're shipping to a different state, you can still proceed.
ℹ️ Product Notes
This is a used part in like-new condition. This is a recertified original equipment part for 2.0L engines.
Fits 2.0L N20 Turbo engines only. Does not fit N26 SULEV engines. Check the emissions sticker under your hood to confirm your engine type.
✓ Quality-Verified: Every used OEM part we sell has been professionally inspected and tested to ensure it meets our quality standards. While it may show some cosmetic wear from previous use, it's fully functional and ready to install.
✓ Original Equipment: This is a genuine OEM (Original Equipment Manufacturer) part - the exact same part that came with your vehicle from the factory. It's designed specifically for your make and model, ensuring perfect fitment and performance.
✓ Works Like New: Despite some visual wear, this part will perform just as well as a brand new one. The internal components and functionality are intact, giving you the same reliability you'd expect from OEM quality.
✓ Significant Savings: Save 50-80% compared to buying new! Used OEM parts offer exceptional value - you get factory quality at a fraction of the cost. It's the smart choice for budget-conscious vehicle owners who won't compromise on quality.
✓ Risk-Free Purchase: We stand behind our re-certified catalytic converters with a generous 1-year warranty, 30-day returns, and 100% money-back guarantee. If it doesn't work out for any reason, simply return it for a full refund. You have nothing to lose!
🛡️ 30-Day Returns + 1-Year Warranty - Buy with Confidence!
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Vehicle Fitment Guide
This part fits the following vehicles:
Active Filters:
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BMW
Z42012-2016(tapclick to expand)(tapclick to hide)
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SubmodelSUB- MODEL
Body Style
Years
Engine
Attributes
sDrive20i
Convertible
2012 - 2013
L4 2.0L Turbo
RWD | Automatic
sDrive20i
Convertible
2012 - 2013
L4 2.0L Turbo
RWD | Manual
sDrive28i
Convertible
2012 - 2016
L4 2.0L Turbo
RWD | Automatic
sDrive28i
Convertible
2012 - 2016
L4 2.0L Turbo
RWD | Manual
Design Pure Traction
Convertible
2014 - 2016
L4 2.0L Turbo
RWD | Automatic
Design Pure Traction
Convertible
2014
L4 2.0L Turbo
RWD | Manual
M Sport
Convertible
2014 - 2016
L4 2.0L Turbo
RWD | Manual
M Sport
Convertible
2014 - 2016
L4 2.0L Turbo
RWD | Automatic
sDrive18i
Convertible
2014
L4 2.0L Turbo
RWD | Manual
sDrive18i
Convertible
2014, 2016
L4 2.0L Turbo
RWD | Automatic
sDrive18iA
Convertible
2015
L4 2.0L Turbo
RWD | Automatic
⚠️ Important: Please verify your vehicle's year, make, model, and specifications before ordering. If you're unsure about fitment, contact our customer service team for assistance.
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Shipping & Handling
Standard shipping: 3-7 business days via UPS Ground
Parts are carefully packaged to prevent damage during transit
Returns (30 Days)
We accept returns within 30 days of delivery for this part.
Defective parts: We will replace the part or issue a refund at our discretion
Electronic parts: Must be returned with the sealed inspection bag unopened. The clear bag allows full visual inspection before opening. Once opened, electronic parts can only be exchanged for a replacement if defective — no refunds
Programming: "Needs to be programmed to my vehicle" is not a valid return reason. Many modules require dealer programming — we're happy to help connect you with resources if your dealer says it's not programmable
Return shipping: We cover return shipping as part of our 100% money-back guarantee
Parts must be returned in original packaging and unmodified condition
Poorly packaged returns that arrive damaged will not be credited
1-Year Warranty
This EPA re-certified catalytic converter includes a 1-year warranty (parts only, no labor) from the date of purchase.
If your converter fails within 1 year, we will send a replacement
Warranty covers parts only — labor is not included
Warranty covers defects — not installation errors, misuse, or damage after installation
Note: Warranty is for replacement only. Return window for refunds is 30 days.
Damaged in Shipping?
If your part arrives damaged:
Stop immediately — do not install the part
Keep all original packaging and boxes
Take clear photos of the damage and packaging
Contact us within 48 hours of delivery
We will handle the carrier claim. You are not responsible for shipping damage — we just need your help documenting it.
Order Cancellation
Orders can be cancelled before shipment for a full refund. Once shipped, cancellations follow our return policy.
Symptoms & Diagnosis
Check Engine Light: This is the most common sign. The light might come on and stay on.
Reduced Engine Performance: Your car might feel sluggish or slow to accelerate.
Rattling Noises: You might hear a rattling sound coming from underneath your car, especially when you start it or accelerate.
Failed Emissions Test: Your car might fail an emissions test, which is required in many areas.
Burning Smell: A bad catalytic converter can sometimes cause a burning smell.
How to test if it's the catalytic converter:
Check for exhaust leaks. Leaks can cause similar symptoms.
Use an OBD-II scanner. This tool can read the error codes from your car's computer. Codes related to the catalytic converter (like P0420) suggest it's the problem.
Have a professional mechanic perform a backpressure test. This test measures the exhaust flow and can identify a blockage in the catalytic converter.
Common failure causes:
Overheating: Excessive heat can damage the catalytic converter.
Contamination: Oil, coolant, or fuel leaking into the exhaust system can poison the catalytic converter.
Physical Damage: Road debris can hit and damage the catalytic converter.
Age and Wear: Over time, the catalytic converter can simply wear out.
Buyer's Checklist
What to look for when buying:
Compatibility: Make sure the part is designed for your specific year, make, and model of car.
Warranty: Look for a part with a warranty. This protects you if the part fails soon after installation.
Condition: Consider whether you want a used, refurbished, or new part.
Quality indicators:
OEM vs. Aftermarket: OEM (Original Equipment Manufacturer) parts are made by the same company that made the original part for your car. Aftermarket parts are made by other companies.
Construction Materials: Look for parts made with high-quality materials that can withstand high temperatures.
Testing and Inspection: Check if the part has been tested and inspected to ensure it meets quality standards.
What's typically included:
The catalytic converter itself.
Sometimes, new gaskets and hardware are included. Check the product description to see what's included.
Installation Overview
Difficulty level:
Intermediate. This job requires some mechanical knowledge and experience.
Estimated time:
2-4 hours.
Special tools needed:
Socket set
Wrench set
Jack and jack stands
Oxygen sensor wrench (optional)
Penetrating oil
Critical steps and tips:
Disconnect the negative battery cable.
Spray penetrating oil on the bolts holding the catalytic converter in place. Let it soak for a while.
Remove the old catalytic converter.
Install the new catalytic converter, using new gaskets and hardware if provided.
Tighten all bolts to the correct torque specifications.
Reconnect the negative battery cable.
DIY or professional installation:
If you have experience working on cars and are comfortable with the steps involved, you can try to install the catalytic converter yourself. However, if you're not confident, it's best to have a professional mechanic do the job.
Buying Options
Used OEM: These are genuine factory parts that have been removed from other vehicles. They are tested and inspected to ensure they are in good working condition. Used OEM parts offer excellent value.
Refurbished OEM: These are factory parts that have been professionally restored. They may have new components installed to bring them back to like-new condition.
New Aftermarket: These are brand new parts made by third-party manufacturers. They are designed to meet or exceed OE specifications.
Related Parts
Oxygen Sensors: Oxygen sensors monitor the exhaust gases and help the engine control system adjust the fuel mixture. They often fail around the same time as the catalytic converter.
Exhaust Manifold Gaskets: These gaskets seal the connection between the exhaust manifold and the engine. Leaks can damage the catalytic converter.
Exhaust Pipes: Damaged or rusted exhaust pipes can cause leaks and affect the performance of the catalytic converter.
Why replacing related parts prevents repeat failures:
Replacing worn or damaged related parts can help prevent the new catalytic converter from failing prematurely. For example, replacing faulty oxygen sensors can ensure the engine is running efficiently and not damaging the catalytic converter.
Typical Lifespan
8-10 years or 80,000-100,000 miles.
Factors that affect longevity:
Driving Habits: Aggressive driving, such as frequent hard acceleration, can shorten the lifespan of the catalytic converter.
Maintenance: Regular maintenance, such as oil changes and tune-ups, can help prolong the lifespan of the catalytic converter.
Fuel Quality: Using high-quality fuel can help prevent damage to the catalytic converter.
Engine Condition: A poorly running engine can damage the catalytic converter.
Price Ranges
Used OEM: $150 - $350
Refurbished OEM: $250 - $450
New Aftermarket: $300 - $600
Labor cost considerations:
Labor costs for catalytic converter replacement typically range from $150 to $400, depending on the shop and the complexity of the job.
Total job cost estimates:
Used OEM: $300 - $750
Refurbished OEM: $400 - $850
New Aftermarket: $450 - $1000
Vehicle-Specific Notes
These BMW models (2013-2017 X1, X3, X4) are known to sometimes have issues with oil leaks that can contaminate and damage the catalytic converter. Regular oil checks and addressing any leaks promptly are important.
Some owners have reported issues with the oxygen sensors failing, which can lead to catalytic converter problems.
Verification After Install
Check Engine Light: Make sure the check engine light is off after installation. If it's still on, use an OBD-II scanner to check for any new error codes.
Listen for Exhaust Leaks: Listen for any unusual noises coming from the exhaust system. Exhaust leaks can indicate a problem with the installation.
Monitor Engine Performance: Pay attention to how the engine is running. It should be running smoothly and efficiently.
FAQ
Q: How do I know if my catalytic converter is bad?
A: The most common sign is the check engine light coming on. You might also notice reduced engine performance, rattling noises, or a failed emissions test.
Q: Can I drive with a bad catalytic converter?
A: It's not recommended. A bad catalytic converter can damage your engine and reduce fuel efficiency. It can also cause you to fail an emissions test.
Q: Will a new catalytic converter improve my gas mileage?
A: Yes, if your old catalytic converter was clogged or damaged, a new one can improve your gas mileage.
Q: How long does it take to replace a catalytic converter?
A: It typically takes 2-4 hours to replace a catalytic converter.
Q: Is it hard to replace a catalytic converter myself?
A: It depends on your mechanical skills and experience. It's an intermediate-level job that requires some specialized tools. If you're not comfortable, it's best to have a professional mechanic do the job.
