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35% Off Online Orders of Select Parts of Accessories. Enter Promo Code PEPTHANKS in Cart

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35% Off Online Orders of Select Parts of Accessories
Receive 35% Off Your Online Purchase. Use promotional code PEPTHANKS at checkout to receive discount. Receive 35% Off when purchased online. Not valid in combination with any other discounts or promotions. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Excludes the following categories: Tires, Wheels, Batteries, Brakes, Shocks & Struts, Truck Boxes, Vent Visors, Bug Shields and BRANDS: Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Garmin, JVC, MSD and BBK Performance. Valid online until 2:59 am EST on 11/30/15. Online orders scheduled for in-store pick up must be completed in store by closing on 11/29/15 for discount to apply.

Your Store: Pep Boys Manassas  8000 Stream Walk Ln
Showing  Mr Gasket CataClean Engine and Catalytic Converter Treatment- 16 oz. 
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Mr Gasket CataClean Engine and Catalytic Converter Treatment- 16 oz.

Part # 120007   SKU: 463999

Manufacturer's Rebate Instruction

Rebate Tips
1. Read your Pep Boys rebate form thoroughly. Each Pep Boys rebate offer is unique, with different date ranges and postmark date requirements. Many rebates require the purchase of multiple products. You must submit all qualifying products listed for a given rebate to be eligible. The best way to make sure you get your rebate is to follow the instructions carefully. If you have any questions, call us at the toll-free number listed on the rebate form or call your local Pep Boys store.

2. Make copies of all of your paperwork. This includes your receipt, rebate form, mailing envelope, and any other items that are needed for validation of your rebate. If for some reason your submission gets lost in the mail, you will need this information to have your rebate reprocessed. It is also a good idea to have this information in front of you if you need to call the customer service phone number listed on your rebate form.

3. Don't wait. Many Pep Boys rebates require your rebate submission to be postmarked within a set number of days from your date of purchase. If you miss this deadline, you will not be able to receive your rebate.

4. Clearly write your name and address on the rebate form. If your handwriting is difficult to read, it will be difficult to enter your information correctly. To ensure fast, accurate processing of your rebate, be sure to print clearly. Remember also that PO boxes are not acceptable addresses for Pep Boys rebates, so be sure to include your street address when you complete your offer form.

5. Watch for your rebate check in the mail.
Adobe® Reader® is required. If the offer form does not appear after selecting it, click the Adobe® Reader® icon at the right to install it - free! Close [x]

Road Hazard Warranty

Protect Your Investment
What will our Road Hazard Warranty do for you?

Pep Boys will follow its Puncture Repair Procedures to determine if your tire should be repaired, at no expense, or replaced under this coverage. While the repair cost is free, there will be a charge for re-balancing a repaired tire.

Road Hazard Warranty can save you the expense of tire replacement. If your Pep Boys tire becomes unusable due to a road hazard related mishap and cannot be repaired, we will, subject to pro-rated adjustment based upon the remaining usable tread on the tire, replace the unusable tire or give you a refund. While Pep Boys will remount the tire for free, there will be a cost for re-balancing the replacement tire.

Coverage extends to such damage as unrepairable tread punctures damage from potholes, nails, glass and jagged metal which cause cuts, snags, punctures, impact breaks, bruises and rim cuts.

Length Of Coverage
Coverage with Road Hazard Warranty extends for the full period of the mileage of the tire. This coverage is not transferable to a new owner, or if the owner mounts the tires on another vehicle.Close [x]

Core Charge

A "Core Charge" is similar to the deposit you might pay for a can or bottle of soda. In many states, to promote recycling, you are charged a deposit when you purchase a can of soda and you receive your deposit back when you return the empty can. Many automotive parts have a Core Charge, or Core Price, that works the same way as a soda can deposit.

Here's how the Core Charge works:
  • The part you are purchasing contains a component that is recyclable
  • The Core Charge deposit is charged at the time of purchase
  • When the recyclable component from your old part is returned to us, the charge is refunded to you
  • To receive your Core Charge refund, you can do either of the following:
  • Bring the part to any Pep Boys store along with your receipt or invoice (recommended)
  • Mail the part back to Pep Boys through the online return process
  • Please see our Returns Policy for more information on returning a core item.
Core Charges are often mandated by state legislature, and, as such, the actual core charge and taxes on the charge may vary depending on the state in which you buy your part. The Pep Boys core charge presented to you online today with your item is representative of the most common core charge. If you have any questions, please contact our Customer Care Center at 1-800-PEP-BOYS (737-2697) or visit any Pep Boys store. Close [x]

Battery Protection Service includes:

  • Chemical Cleaning of Battery Cable Connectors
  • Installation of Acid-Neutralizing Felt Terminal Post Washers
  • Application of Anti-Corrosion Sealant to Terminals

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Battery Protection Service Please note, promotional offers require purchase of the Battery Protection Service as a part of the installation package. De-selecting this will make you ineligible for certain promotions & offers.Close [x]
Select this option and add to cart to view tires that fit your wheels. Close [x]

TPMS Sensor

To keep your Tire Pressure Monitoring system (TPMS) working properly, sensors are required for installation of your new wheels.Close [x]

TPMS Rebuild Kit

For some vehicles, we may be able to rebuild the sensors from your existing wheels. However, new sensors may be necessary based on your vehicle/wheel combination. Your service advisor will help determine your specific needs at the time of installation.Close [x]

Valve Stems

New valve stems are required to ensure proper installation of your wheels.Close [x]

Lug Nuts

Depending on the style of your new wheels, new lug nuts may be required for installation. Our lug nut kits are available in chrome and black and will be selected based on the best match for your new wheels.Close [x]
Please check your vehicle placard or owner's manual. If you have an appointment we will check for you when you come in. Close [x]
Reg. Price
$24.99 / ea
Sale Price
$19.98 / ea
Available tomorrow Need It Now? Available
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Mr Gasket CataClean Engine and Catalytic Converter Treatment- 16 oz.

Cataclean is an engine and fuel system detoxification technology developed to exceed the most recent environmental standards. It not only prevents fouling of your catalytic converter it removes existing deposits and increases fuel efficiency. Reduces harmful emissions hence improving fuel combustion prevents fouling of your catalytic converter and removes existing deposits thereby increasing fuel efficiency and maximizes the conversion of exhaust gases within the catalytic converter. Cataclean is safe for use in gasoline diesel hybrid and flex fuel vehicles.
  • Improves Performance
  • Cataclean is not a fuel additive and is required only every 3 months
  • This item is not for sale in Catalina Island
  • Cataclean is not a fuel additive and is required only every 3 months
  • This item is not for sale in Catalina Island

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Rated 3.5 out of 5 by 17 reviewers.
Rated 1 out of 5 Didn't work I followed the instructions, as well as advice from others. Then I unplugged my battery to turn off the light. 2 weeks later it came back on. This was a big waste of money October 29, 2015
Rated 2 out of 5 by A good treatment option. I was not able to see if the product worked or not. I believe I've used it too late. The reviews caused me to purchase it with the hope and possibility of it working. October 12, 2015
Rated 5 out of 5 by Notice the dffernce I love this Mr Gasket CataClean Engine and Catalytic Converter Treatment. My goal is to use it quarterly. i'm debating replacing my cats, but this is way cheaper and I notice the difference overall. September 18, 2015
Rated 5 out of 5 by It Works! Followed the instructions on the container and my 2005 Nissan Altima picked up lost power and ran much smoother. August 27, 2015
Rated 1 out of 5 by Tryed it ! All I can say is I tried it and it did not work .... maybe it was in too bad of condition. Now I am out $ 15.00 ( it was on sale ) August 14, 2015
Rated 4 out of 5 by I heard this stuff is great! My mechanic recommended it. He put in a new engine in my car and my engine light was still on with a code indicating the catalytic converter. I had replaced that three months prior. He said you prob need to clean the fuel, engine and converter. I put this in. I believed it did what it intended, but my car had issues bigger than this Mr.Gasket could take care of. Eventually I replaced the fuel pump, which took care another problem. But my engine light is still on. May 25, 2015
Rated 3 out of 5 Worked well for about two weeks, then back to the CEL I purchased this product because my CEL was on with the code P0420. I used this product and reset the CEL, and it remained off for about two weeks and then it returned. So it did not perform as advertised, although it did seem to clean out the combustion system and my vehicle peformed better after use. Just didn't fix the catalytic converter issue. October 20, 2014
Rated 5 out of 5 by Seemed to Work Not sure what caused my Cat/O2 sensor to go into alarm, might have been bad fuel, or the week long sub zero temps. But its been 3 weeks and the check engine light hasn't come back on. I put in the tank with a few gallons of gas, reset the light and it hasn't come back. March 3, 2014
  • 2015-11-29 T07:39:39.467-06:00
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