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GMC K15 Catalytic Converter

We have 6 Items In-stock. Select a year to continue.
$51.70 List Price $61.01 Save $9.31 Availability: In Stock
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EASTERN CATALYTIC CONVERTER

World-class quality and innovation have made Eastern the best converter manufacturer in the business. 100% of Eastern's research and development efforts goes into making the finest aftermarket and original equipment catalytic converters on the market. Each Eastern catalytic converter uses advanced materials design which retains maximum engine output and maximizes catalytic efficiency. Eastern's proprietary NANO technology chemistry yields highly efficient loadings for lower cost and better converter efficiency.

Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: EAST70318
  • Brand: Eastern
  • Product Fit: Minor Modifications
  • Quantity Sold: Sold Individually
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
(see more)
Fits the following GMC K15 Years:
  • 1976-1978 | 8 Cyl 5.0L | Base, High Sierra, Sierra Classic, Sierra Grande
  • 1975-1978 | 8 Cyl 5.7L | Base, High Sierra, Sierra Classic, Sierra Grande
(see more)
Rating: (see review/s)

"Great price and good service so far. Would recommend this product to anyone." posted by: Glen on February 23, 2014

"Carbon emmissions prior to installation was 1875 PPM.(160PPM max allowable in CT). After inatallation Carbon emmissions dropped to 80PPM." posted by: john on November 15, 2013 view all 13 reviews

$75.88 List Price $98.20 Save $22.32 Availability: In Stock
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  • Not legal for use in California or in states adopting the California emissions standards
  • Semi-universal design – cut out your old catalytic converter and weld in the new one
  • Stainless Steel Construction
  • Legendary Magnaflow quality, power, and sound
  • Ceramic, honeycomb catalyst designed for maximum flow and surface area

When you want the best, you want Magnaflow!  These 49-State Legal semi-universal catalytic converters have a catalyst specifically designed for your vehicle – just cut out your old catalytic converter and weld in the new one.  Engineered to cut emissions and improve performance.

  • SKU#: M6694006
  • Brand: Magnaflow
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 12 in. L x 6.5 in. W x 4 in. H, 16 in. overall length
(see more)
Fits the following GMC K15 Years:
  • 1977-1978 | 8 Cyl 5.0L | Base, High Sierra, Sierra Classic, Sierra Grande
  • 1975-1978 | 6 Cyl 4.1L | Base, High Sierra, Sierra Classic, Sierra Grande
(see more)
Rating: (see review/s)

"I really have no pro's or con's about this converter. Ordered it on Thursday and by Saturday I have FEDEX delivering the package. Really fast prompt service. It does not say this in the description of the product, but the openings are 2.5 inch inside diameter. Installed it today and so now I can get my truck inspected. I am forwarding this website to a friend of mine who has a 89 Chevy like my 92 and he needs a caty to get his truck running and inspected." posted by: Doc on December 11, 2010

"I ordered this for my jeep, it arrived in great condition and would order from this company again! Thanks so much" posted by: froggy on May 25, 2010 view all 3 reviews

$102.61 List Price $194.10 Save $91.49 Availability: In Stock
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CATCO CATALYTIC CONVERTER

Catco catalytic converters are designed with 409 stainless steel pipes and shell for longer life.

Specifications
  • Oval body
  • 24.75 in. overall length
  • 2.5 in. inlet diameter
  • 2.5 in. outlet diameter
  • Single inlet and outlet configuration
Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: CAT4001
  • Brand: Catco
  • Fit Note: Federal And California Emission Vehicles
  • Quantity Sold: Assembly
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 2-3 business days
  • Catalyst Substrate Material: Ceramic honeycomb
  • Dimensions: 24.75 in. overall length
(see more)
Fits the following GMC K15 Years:
  • 1976-1978 | 8 Cyl 5.0L | Base, High Sierra, Sierra Classic, Sierra Grande
  • 1975-1978 | 8 Cyl 6.6L | Base, High Sierra, Sierra Classic, Sierra Grande
(see more)
$134.22 List Price $158.38 Save $24.16 Availability: In Stock
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WALKER CATALYTIC CONVERTER

Specifications: Pipe Inlet Connection, Pipe Outlet Connection

Features:

  • 3-way catalyst style
  • Has broad application coverage
  • Higher loaded substrate

Walker catalytic converter features stainless steel body, aluminized expandable bushings and heat shield for enhanced strength and durability.

Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: WK80906
  • Brand: Walker
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: 5-year or 50,000-mile Walker limited warranty
 
Fits the following GMC K15 Years:
  • 1977-1978 | 8 Cyl 5.0L | Base, High Sierra, Sierra Classic, Sierra Grande
  • 1976-1978 | 8 Cyl 6.6L | Base, High Sierra, Sierra Classic, Sierra Grande
(see more)
$91.51 List Price $118.42 Save $26.91 Availability: In Stock
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FLOWMASTER – DIRECT FIT 49-STATE LEGAL* CATALYTIC CONVERTERS

Flowmaster’s Direct Fit catalytic converter is dyno-proven to dramatically increase horsepower and reduce emissions better than your stock catalytic converter. It’s legal in 49 states and passes the federal EPA emissions standards – one of those ‘too good to be true’ must-have aftermarket products. Flowmaster, known as ‘the exhaust technology company,’ is a leading manufacturer of high performance exhaust systems and respected for design, innovation and engineering.

  • Street legal - complies with federal EPA emissions standards
  • 50,000-mile/5-year casing warranty and 25,000-mile emissions warranty
  • Proven to improve horsepower while reducing emissions at the same time
  • 100% welded stainless body means long-lasting durability
  • Direct fit by vehicle year, make and model
  • Quick and easy installation
  • Dyno-tested
  • Factory replacement part
  • Precious metals and oversized substrates mean fewer toxins leaving the tailpipes
  • Includes heat shield for added protection
  • SKU#: F132010040
  • Brand: Flowmaster
  • Quantity Sold: Sold Individually
  • Tube Material: Stainless Steel
  • Anticipated Ship Out Time: 1-2 Business Days
  • Catalyst Substrate Material: Ceramic
  • EO Number: Not applicable
(see more)
Fits the following GMC K15 Years:
  • 1976-1978 | 8 Cyl 5.0L | Base, High Sierra, Sierra Classic, Sierra Grande
  • 1975-1978 | 8 Cyl 6.6L | Base, High Sierra, Sierra Classic, Sierra Grande
(see more)
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$113.39 List Price $133.80 Save $20.41 Availability: In Stock
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BOSAL CATALYTIC CONVERTER ASSEMBLY

Bosal catalytic converters are made to fit vehicle-specific requirements for backpressure, emissions, sound levels, and sensors. Designed and built for long life reliability.

Specifications
  • Standard assembly with one catalytic converter
  • Oval body
  • Single inlet and outlet configuration
Not legal for sale in California and New York; Cannot be shipped to CA or NY addresses.

  • SKU#: BO0795001
  • Brand: Bosal
  • Quantity Sold: Assembly
  • Tube Material: Aluminized Steel
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: 5-year or 25,000-mile Bosal limited warranty
 
Fits the following GMC K15 Years:
  • 1976-1978 | 8 Cyl 5.0L | Base, High Sierra, Sierra Classic, Sierra Grande
  • 1975-1978 | 6 Cyl 4.1L | Base, High Sierra, Sierra Classic, Sierra Grande
(see more)
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