1978 Dodge Diplomat Exhaust Parts

Essential 1978 Dodge Diplomat Exhaust Parts

Felpro – Exhaust Pipe Flange Gasket (Part No.9547)

Exhaust Pipe Flange Gasket

from

$2.29
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Felpro – Engine Intake to Exhaust Gasket (Part No.90104-2)

Engine Intake to Exhaust Gasket

from

$4.29
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Combined intake and exhaust manifold gasket set
  • Application specific design to ensure a perfect fit
  • Meets or exceeds all original equipment specifications
  • Engineered and manufactured specifically for repair applications
  • Unsurpassed quality you can trust
  • Includes all parts needed to complete the repair
  • Includes all parts needed to complete the repair
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MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.338005)

California Grade CARB Compliant Universal Catalytic Converter

from

$276.99
MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 338005 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.337305)

California Grade CARB Compliant Universal Catalytic Converter

from

$328.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 337305. The Universal design allows the part to fit a wide array of vehicles (cutting and welding required), and the stainless steel construction of this spun body catalytic converter is highly resistant to corrosion. The single laser fusion weld of the spun body greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.337304)

California Grade CARB Compliant Universal Catalytic Converter

from

$290.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 337304. The Universal design allows the part to fit a wide array of vehicles (cutting and welding required), and the stainless steel construction of this spun body catalytic converter is highly resistant to corrosion. The single laser fusion weld of the spun body greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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Walker – CalCat Catalytic Converter- CARB Certified, Universal / Fabrication Needed (Part No.81127)

CalCat Catalytic Converter- CARB Certified, Universal / Fabrication Needed

from

$465.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.

Product Features:
  • CARB COMPLIANT — For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
  • SUPERIOR TECHNOLOGY — Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
  • CONSISTENT PERFORMANCE — Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
  • DURABLE — Features stainless-steel body with aluminized pipe and heat shields for durability
  • FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
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Dorman – Direct Fit Exhaust Manifold: Without Heat Shield (Part No.674-232)

Direct Fit Exhaust Manifold: Without Heat Shield

from

$468.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.

Product Features:
  • Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
  • Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
  • Complete repair – includes all necessary gaskets and downpipe hardware
  • Trustworthy design – built by industry leader in aftermarket manifolds
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Felpro – Exhaust Manifold Gasket Set (Part No.MS 90460)

Exhaust Manifold Gasket Set

from

$22.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
  • Contains all gaskets and seals to remove and replace exhaust manifold
  • Contains all gaskets and seals to remove and replace exhaust manifold
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Edelbrock – Exhaust Manifold Gasket Set for Chrysler (Part No.7236)

Exhaust Manifold Gasket Set for Chrysler

from

$30.99
Product Features:
  • Designed To Match Port Openings Of Cylinder Heads
  • Excellent Free-Flowing Seal
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Remflex – Flexible Graphite, Set Of 2, 1-3/32 Inch X 1-7/16 Inch Square Port Size (Part No.6008)

Flexible Graphite, Set Of 2, 1-3/32 Inch X 1-7/16 Inch Square Port Size

from

$45.99
Remflex unique flexible graphite material has been proven for more than 30 years in industrial applications, where temperatures routinely exceed 2,000 degrees – day after day, week after week, year after year. Now, they are bringing this technology to enthusiasts of all kinds to eliminate exhaust leaks for good Whether you have an old pick-up that needs a manifold gasket, or a race car with custom-built headers, you can be assured that Remflex exhaust gaskets will work properly the first time, every time.

Product Features:
  • 100 Percent Flexible Graphite Construction
  • Designed To Withstand Clamping Force And Incredible Heat
  • Eliminate Exhaust Leaks
  • No Re-Torquing Necessary, Remflex Exhaust Gaskets Rebound 30 Percent, Creating An Optimum Seal That Eliminates The Need To Re-Torque
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Taylor Gaskets – Seal-4-Good Header Flange Gasket (Part No.66037)

Seal-4-Good Header Flange Gasket

from

$51.99
Seal-4-Good Header Flange Gasket

Remflex – Flexible Graphite, Set Of 2, 1-1/16 Inch X 1-25/32 Inch Square End Port Size (Part No.6003)

Flexible Graphite, Set Of 2, 1-1/16 Inch X 1-25/32 Inch Square End Port Size

from

$44.49
Remflex unique flexible graphite material has been proven for more than 30 years in industrial applications, where temperatures routinely exceed 2,000 degrees – day after day, week after week, year after year. Now, they are bringing this technology to enthusiasts of all kinds to eliminate exhaust leaks for good Whether you have an old pick-up that needs a manifold gasket, or a race car with custom-built headers, you can be assured that Remflex exhaust gaskets will work properly the first time, every time.

Product Features:
  • 100 Percent Flexible Graphite Construction
  • Designed To Withstand Clamping Force And Incredible Heat
  • Eliminate Exhaust Leaks
  • No Re-Torquing Necessary, Remflex Exhaust Gaskets Rebound 30 Percent, Creating An Optimum Seal That Eliminates The Need To Re-Torque
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Walker – Hanger Length 4 (Part No.35183)

Hanger Length 4

from

$15.99
Complete your exhaust repair with Walker® exhaust hangers. Designed with OE-style features to support undercar exhaust components, Walker hangers are manufactured from durable and robust material for long service life.

Product Features:
  • KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
  • OE DESIGN — Designed with OE-style features for easy installation
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS — Made from quality steel for durability and long life
  • BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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Dorman – Help – Exhaust Stud Kit – 3/8-24 x 2 In. (Part No.03103)

Exhaust Stud Kit - 3/8-24 x 2 In.

from

$9.99
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.

Product Features:
  • Direct replacement for a proper fit every time
  • Durable steel construction
  • New hardware helps fix exhaust leaks
  • Also available in the Exhaust Manifold Hardware Kit
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Walker – Hanger Length 2.25 (Part No.35148)

Hanger Length 2.25

from

$11.99
Complete your exhaust repair with Walker® exhaust hangers. Designed with OE-style features to support undercar exhaust components, Walker hangers are manufactured from durable and robust material for long service life.

Product Features:
  • KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
  • OE DESIGN — Designed with OE-style features for easy installation
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS — Made from quality steel for durability and long life
  • BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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Walker – Exhaust 35574 Catalytic Converter Air Tube (Part No.35574)

Exhaust 35574 Catalytic Converter Air Tube

from

$87.99
Walker®, with our worldwide OE partnerships and manufacturing facilities, possesses the technical excellence needed to meet today’s emissions control needs, while developing solutions for tomorrow’s challenges. Walker® is a ‘one-stop’ convenience, offerin

Product Features:
  • Offered in a variety of styles and sizes for your installation needs
  • Constructed from durable and robust material for long life
  • Universal fit for installation flexibility
  • Designed to work seamlessly with OE and Walker aftermarket replacement parts
  • New Walker® accessories help to ensure effective exhaust repairs
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Mr. Gasket – Exhsthdrbolt (Part No.2230G)

Exhsthdrbolt

from

$47.99
Headlock&trade: Bolts eliminate the need for lock washers, Period. That’s because each Headlock&trade: Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.

Product Features:
  • 12 per Package
  • Includes a ball-head/hex-key socket-installation tool that makes it easy to get them started
  • 410 stainless steel
  • Minimum 180,000 PSI tensile strength
  • 24 equally spaced clockwise teeth
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Flowtech – Terminator; Exhaust Tips (Part No.59905FLT)

Terminator; Exhaust Tips

from

$85.99


Product Features:
  • Show Quality Chrome Platinum
  • Durable Black Finish
  • Can Be Welded Or Clamped
  • Complete The System
  • Glass-Packed Resonators
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1978 Dodge Diplomat Exhaust Parts

You count on your 1978 Dodge Diplomat to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Exhaust Parts. With 15 Exhaust Parts ranging in price from $2.29 to $468.99, you’re sure to find everything you need for your 1978 Dodge Diplomat.

Brands matter. If you want to shop a specific Exhaust Parts brand, we stock 10 different brands like Felpro, Flowtech, and Remflex. 1978 Dodge Diplomat Exhaust Parts start as low as $2.29!

One of the best ways to find top quality OEM or aftermarket Exhaust Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 194 extensive product reviews on 1978 Dodge Diplomat Exhaust Parts. Some of the top-rated Exhaust Parts products we carry are Seal-4-Good Header Flange Gasket with 3.0 stars and Direct Fit Exhaust Manifold: Without Heat Shield with 4.0 stars.

Did we mention you can order your Exhaust Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Exhaust Parts inventory for your 1978 Dodge Diplomat below to get started!

Top-Rated Exhaust Parts Brands For Your 1978 Dodge Diplomat

Trusted Exhaust Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1978 Dodge Diplomat running right for years to come. In our inventory you’ll find brands like Felpro, Flowtech, Remflex, and even more.

Popular Felpro Exhaust Parts

You’ll find popular Felpro brand products across Exhaust Gaskets. All are waiting to get your 1978 Dodge Diplomat back on the road. Some of the top-rated Felpro products in these categories are:
Exhaust Manifold Gasket Set
from $22.99
(1)
Exhaust Manifold Gasket Set
Exhaust Manifold Gaskets

Top-Rated Exhaust Parts


If are what you’re looking for, our inventory holds plenty. We stock brand Exhaust Parts for your 1978 Dodge Diplomat, and some of our most reviewed parts include:
Terminator; Exhaust Tips
from $85.99
(5)
Terminator; Exhaust Tips
Exhaust Chrome and Stainless Tips

FAQs for 1978 Dodge Diplomat Exhaust Parts

What are the most purchased Exhaust Parts for the 1978 Dodge Diplomat?

Out of 15 Exhaust Parts for the 1978 Dodge Diplomat, the most popular in our inventory are:
Exhaust Pipe Flange Gasket
from $2.29
This product is not rated
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets
Super Competition Header Gasket
from $17.79
This product is not rated
Super Competition Header Gasket
Exhaust Manifold Gaskets

What are the top-rated 1978 Dodge Diplomat Exhaust Parts?

Top-rated Exhaust Parts for your 1978 Dodge Diplomat based on customer reviews/ratings are:
Seal-4-Good Header Flange Gasket
from $51.99
(2)
Seal-4-Good Header Flange Gasket
“Creative advertising, Not 1/8″ thick are 1/16″ thick with rolled edges to appear to be 1/8″ thick. If port match to cylinder head you remove all rolle”
Direct Fit Exhaust Manifold: Without Heat Shield
from $468.99
(1)
Direct Fit Exhaust Manifold: Without Heat Shield
“Used this Exhaust Manifold by Dorman in my 1962 Dodge Lancer GT. Great Product!”