SKU: 55344854040

Catalytic Converter for HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter MagnaFlow 24178

Sale price$115.65 Regular price$128.50
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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Description

Catalytic Converter for HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter MagnaFlow 24178Overview: Keep the check engine light off with MagnaFlow HM Grade Federal EPA Compliant Direct Fit Catalytic Converter 24178. With features including free flowing mandrel bent tubing and highly corrosion resistant, stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state of the art metrology department uses the latest 3D scanning systems during research and

Overview:

Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 24178. With features including free-flowing mandrel-bent tubing and highly corrosion resistant, stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed specifically for the 2004-2013 Mazda 3 and interchanges with OE parts L353-20-55XH, L326-20-55XK, among others. Avoid potential exhaust leaks by using the included gaskets to get a proper seal.

Note : Not For Sale in California

Interchange:
Brand  Interchange Part Number
Mazda L326-20-55XK
Mazda L327-20-55XK
Mazda L328-20-55XK
Mazda L329-20-55XK
Mazda L351-20-55XH
Mazda L352-20-55XH
Mazda L353-20-55XH
Mazda L354-20-55XH
Mazda L3C2-20-55XD
Mazda LF13-20-55XK
Mazda LF14-20-55XM
Mazda LF62-20-55XD
Mazda L3262055XK
Mazda L3272055XK
Mazda L3282055XK
Mazda L3292055XK
Mazda L3512055XH
Mazda L3522055XH
Mazda L3532055XH
Mazda L3542055XH
Mazda L3C22055XD
Mazda LF132055XK
Mazda LF142055XM
Mazda LF622055XD
Mazda L326-20-55XK
Mazda L327-20-55XK
Mazda L328-20-55XK
Mazda L329-20-55XK
Mazda L351-20-55XH
Mazda L352-20-55XH
Mazda L353-20-55XH
Mazda L354-20-55XH
Mazda L3C2-20-55XD
Mazda LF13-20-55XK
Mazda LF14-20-55XM
Mazda LF62-20-55XD
Mazda L3262055XK
Mazda L3272055XK
Mazda L3282055XK
Mazda L3292055XK
Mazda L3512055XH
Mazda L3522055XH
Mazda L3532055XH
Mazda L3542055XH
Mazda L3C22055XD
Mazda LF132055XK
Mazda LF142055XM
Mazda LF622055XD

Application:

Year Make Model Submodel Engine Size
2004 - 2013 Mazda 3 2L/L4
2004 - 2009 Mazda 3 2.3L/L4
2010 - 2013 Mazda 3 2.5L/L4

Specs:

Air Tube Adaptable No
Sensor Port Count 0
Overall Length (In.) 22.375
Mounting Hardware Included Yes
Heat Shield Attached No
Outlet Attachment Clamp-On
Inlet Attachment Bolt-On
Material Stainless Steel
Hangers Included No
Clamp Included No
Series HM Grade
Subtitle Federal / EPA Compliant
Title HM Grade Direct-Fit
Type Direct-Fit
Gasket Included Yes
Finish Stainless Steel
Converter Quantity 1
Substrate Material Ceramic
Main Piping Diameter 2.5
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 55344854040

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4.5 ★★★★★
Based on 20 reviews
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Product Reviews
T
Verified Purchase
Taylor McDevitt
Waukegan, US
★★★★★ 4
Does it's purpose with style
We used these in our pantry and dining room for shelves and they turned out well. The only reason they are hard to install is because of the design (which is very nice) so it is worth it. It just takes time when you you are hanging the shelves, to do it correctly. While they can hold a lot, we realized that a bunch of cans or jars cannot go on these shelves. Luckily we had another option for heavy items (Example: We had about 40ish pounds of cans/jars on a 1x12 board that is 33 inches long with 2 of these brackets...and it was too much). If you do not need to hold a lot of weight, these shelves are a for sure, for the price and quality. If you NEED they for something heavy, then you probably will have to go with something more practical from a hardware store. We LOVE them for our pantry!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2020
F
Verified Purchase
FredsMyth
Whiting, US
★★★★★ 5
Worked as intended
Hubby used these to mount a shelf above a long span of windows. They worked great and allowed a clean visual appearance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 7, 2025
A
Verified Purchase
Amazon Customer
Chelsea, US
★★★★★ 5
Nice brackets
These are nice sturdy brackets for butcher block shelf however they do bend a bit. We installed in a corner so was able to pin to side wall no problems on big shelf. The smaller shelf about 18” moves a bit up and down when loading. Now very little and no worries about it but not rock solid
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2024
P
Verified Purchase
PK
Phoenix, US
★★★★★ 5
Easiest shelf brackets ever!
Live these! They were great look good and we’re easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 12, 2025
C
Verified Purchase
Calichef
Houston, US
★★★★★ 5
Sturdy Shelf Brackets
I really like these shelf brackets. They seem very sturdy, which is great for my laundry room shelves over the washer & dryer pair. It's going to be great to FINALLY have shelves for laundry supplies or "buyers' club" household items like 12-packs of paper towels or 36-packs of T.P. I can hardly wait to have my sons install them so I can fill them up!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 13, 2023

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