1978 Dodge Diplomat Performance Parts

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    • Hooker® - Super Competition™ Mild Steel Black Painted Long Tube Exhaust Headers
      (0 reviews)
      # 1200642663
      Dodge Diplomat 5.2L / 5.9L 1978, Super Competition™ Mild Steel Long Tube Exhaust Headers by Hooker®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 3". Collector Length: 10". Color: Black. Header Style: Long Tube. This...
      Tuned-length primary tubes for maximum exhaust scavenging and velocityMandrel-bent tubing for smooth exhaust flow
      $496.95
    • EBC® - Redstuff Ceramic Low Dust Front Brake Pads
      (0 reviews)
      # 594012554
      Dodge Diplomat 1978, Redstuff Ceramic Low Dust Front Brake Pads by EBC®. Redstuff ceramic brake pads have always been known for its low dust ability but the latest blend has greatly reduced the phenomenon of pad “Pick up” or disc...
      $124.77
    • Monroe® - Monro-Matic Plus™ Front Driver or Passenger Side Shock Absorber
      (0 reviews)
      # 584496079
      Dodge Diplomat Coupe / Sedan / Wagon 1978, Monro-Matic Plus™ Front Driver or Passenger Side Shock Absorber by Monroe®. Quantity: 1 per Pack. Nitrogen gas charged Monro-Matic Plus shocks and struts feature VPV (velocity proportional...
      $17.67
    • Edelbrock® - Performer™ Dual Plane Intake Manifold
      (0 reviews)
      # 171782861
      Dodge Diplomat 5.2L / 5.9L with Small Block Chrysler Engine 1978, Performer™ Dual Plane Intake Manifold by Edelbrock®. This premium product is the best way to go for those looking for the highest quality replacement that offers...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $310.14 - $627.95
    • Banks® - PowerPack™ Turbocharger System
      (0 reviews)
      # 450479564
      Universal PowerPack™ Turbocharger System by Banks®. The Banks Power Dual Exhaust PowerPack System is the complete towing package your pickup truck, with extended cab short bed configuration, deserves.
      Stunning Top GainsImproved Mileage
      $2,198.00 - $2,798.00
    • COMP Cams® - Thumpr™ Hydraulic Flat Tappet Camshaft
      (0 reviews)
      # 1432247024
      Dodge Diplomat 1978, Thumpr™ Hydraulic Flat Tappet Camshaft by COMP Cams®. Basic Operating RPM Range: 2000-5800. Intake Duration at 050 inch Lift: 227°. Exhaust Duration at 050 inch Lift: 241°. Lobe Separation (degrees): 107°....
      High quality at an affordable priceExpertly made from premium materials
      $167.30
    • Mr. Gasket® - Thermocap™ Radiator Cap
      (5 reviews)
      # 102095115
      Dodge Diplomat 1978, Thermocap™ Radiator Cap by Mr. Gasket®. Pressure: 16 lbs. Material: Aluminum. Knowing your coolant temperature can help to prevent burn injuries. Thermo Cap, with its built-in calibrated thermometer, indicates the...
      Indicates Coolant TemperatureHelps to Prevent Injuries from coolant or steam burns
      +1
      $33.21 - $38.43
    • Hays® - Performance Steel Flywheel
      (0 reviews)
      # mpn1293379238
      Dodge Diplomat 5.9L Standard Transmission with Internal Balanced Flywheel 1978, Performance Steel Flywheel by Hays®. Flywheel Tooth Number: 130. Product Weight: 30 lbs. Hays Steel Flywheels are manufactured from certified billet...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $324.95
    • AED Performance® - Ultra HO Series Carburetor
      (0 reviews)
      # mpn358514447
      Dodge Diplomat 5.2L / 5.9L 1978, Ultra HO Series Carburetor by AED Performance®. AED Performance Ultra HO series carburetors have all the great features of HO series carburetors and feature the aluminum Ultra body, Screw in air bleeds,...
      High quality at an affordable priceExpertly made from premium materials
      $719.79
    • MSD® - Blaster 2™ Ignition Coil
      (0 reviews)
      # mpn1442972
      Dodge Diplomat C / D / G / J Engine VIN Character 1978, Blaster 2™ Ignition Coil by MSD®. If you are looking to upgrade your stock coil, or want to compliment the performance of your MSD Blaster Ignition, MSD 5, 6 or 7, the Blaster...
      Performance upgrade for canister style coilsHigh voltage and energy output
      $51.39
    • Proforged® - Front Bent Tie Rod End
      (0 reviews)
      # 954505052
      Dodge Diplomat 1978, Front Bent Tie Rod End by Proforged®. Quantity: 1 per Pack. Proforged applied the same technological advancements in ball joint construction to their line of Tie Rod Ends and Rack Ends, delivering a premium product...
      SAE1045 forged steeling housingsBall studs forged from ultra-strong SAE4140 chromoly steel
      $17.96 - $39.57
    • Tuff Stuff Performance® - Alternator
      (0 reviews)
      # 714498802
      Dodge Diplomat 1978, Alternator by Tuff Stuff Performance®.
      Heavy Duty Copper Wound CoilsSpike Resistant Diodes
      $184.00 - $289.07
    • Driveshaft Shop® - Driveshaft Driveshaft
      (0 reviews)
      # 1477449781
      Driveshaft by Driveshaft Shop®. If you have been waiting for the best shaft available for your vehicle, the wait is over. This top-of-the-line driveshaft offered by Driveshaft Shop is exactly what you need to put a lot of horsepower...
      Crafted from the highest quality materialsDynamically balanced at over 9000 RPMs
      $367.49 - $1,574.99
    • Auto Meter® - User Configurable LCD Dash Display
      (0 reviews)
      # mpn4478773922
      Universal User Configurable LCD Dash Display by Auto Meter®. Designed specifically for the harshest of environments, the carbon composite housing is IP65 sealed against water and dust intrusion and will easily withstand 20g of...
      7.0” TFT LCD panel, 1000 nit brightness for unmatched daytime and nighttime visibility with 800x480 resolution. Onboard photo sensor for automatic brightness controlDimensions - 8.3" Wide x 5.2" High x 1.4" Deep
      $2,832.00
    • RaceQuip® - 110 Series Single Layer Racing Suit
      (0 reviews)
      # 69025922
      110 Series Single Layer Racing Suit by RaceQuip®. Avaliable in Colors: Black, Blue, Red. Get superior durability and comfort combined with overall flame and heat protection. Strong construction and advanced sewing techniques make this...
      Ensures heat and fire protectionGentle fabric provides superior comfort
      $99.95 - $139.95
    • Patriot Exhaust® - Steel Short Tube Tight Tuck Street Rod Exhaust Headers
      (0 reviews)
      # 231059638
      Dodge Diplomat 5.2L / 5.9L with Small Block Chrysler Engine 1978, Steel Short Tube Tight Tuck Street Rod Exhaust Headers by Patriot Exhaust®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". Header Style: Short Tube....
      Expertly crafted from premium materialsQuality design and workmanship
      $256.76 - $417.66
    • Chrome Brakes® - Drilled and Slotted 1-Piece Front Brake Rotors and Hub Assembly
      (0 reviews)
      # 26746746
      Dodge Diplomat 1978, Drilled and Slotted Vented 1-Piece Front Brake Rotors and Hub Assembly by Chrome Brakes®. This is a set of OEM-sized replacement rotors with slots and drilled holes that provide the superior level of cooling needed...
      +2
      $214.95
    • QA1® - Front Screw-In Ball Joint
      (0 reviews)
      # 900832723
      Dodge Diplomat Coupe / Sedan / Wagon 1978, Front Screw-In Ball Joint by QA1®. Quantity: 1 per Pack. For a variety of racing applications, QA1's Screw-In Style Ultimate Ball Joint is a great choice. This patented, self-lubricating design...
      Ultimate Low Friction OperationWear Resistant Design
      $61.37 - $62.36
    • K&N® - E Series Round Red Air Filter
      (0 reviews)
      # 377185812
      Dodge Diplomat 1978, E Series Round Red Air Filter by K&N®. K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. K&N makes over 1,200 different replacement air filters...
      Designed to boost horsepower and rate of accelerationCan be cleaned and used again
      $55.99 - $57.99
    • COMP Cams® - Thumpr™ Hydraulic Flat Tappet Camshaft Kit
      (0 reviews)
      # 1432356203
      Dodge Diplomat 1978, Thumpr™ Hydraulic Flat Tappet Camshaft Kit by COMP Cams®. Basic Operating RPM Range: 2000-5800. Intake Duration at 050 inch Lift: 227°. Exhaust Duration at 050 inch Lift: 241°. Lobe Separation (degrees): 107°....
      High quality at an affordable priceExpertly made from premium materials
      $543.39
    • Flex-a-Lite® - Lo-Profile Direct Fit Dual Electric Fan
      (2 reviews)
      # mpn1711360
      Dodge Diplomat 1978, Lo-Profile Direct Fit Dual Electric Fan by Flex-a-Lite®. With Variable Speed Controller. Diameter: 12 1/8". Size: 26 1/4" x 15 1/2" x 2 5/8". Replace your old belt-driven fan with this highly efficient device and...
      $458.08
    • Centerforce® - II Series Clutch Pressure Plate
      (0 reviews)
      # 77142494
      Dodge Diplomat Standard Transmission 1978, II Series Clutch Pressure Plate by Centerforce®. Disc Outer Diameter: 10.4". Rear Main Seal Style: 2-Piece. 2 Clutch Bolt Pattern. The Centerforce® II Clutch Series utilizes a full facing disc...
      Patented centrifugal weight design (where applicable)Patented ball bearing pressure plate (where applicable)
      $308.95 - $333.95
    • Nitrous Express® - Carbureted Nitrous Plate Wet Systems
      (0 reviews)
      # 1426867752
      Dodge Diplomat 1978, Carbureted Nitrous Plate Wet Systems by Nitrous Express®. The conventional system is the perfect entry level nitrous system for the budget minded sportsman racer. These systems feature the most advanced technology...
      High quality at an affordable priceExpertly made from premium materials
      $567.72 - $1,325.04
    • Autolite® - Iridium Spark Plugs with Resistor
      (0 reviews)
      # mpn4511855778
      Dodge Diplomat 3.7L 1978, Iridium Spark Plugs by Autolite®. with Resistor. These spark plugs are one of the brand's most technologically advanced spark plugs ever. With an iridium-enhanced 0.6 mm finewire design and proprietary platinum...
      Iridium-enhanced center electrodePatented, platinum sidewire technology
      $7.19
    • Proforged® - Front Idler Arm
      (0 reviews)
      # mpn3800683656
      Dodge Diplomat Except Police or Taxi Package 1978, Front Idler Arm by Proforged®. Quantity: 1 per Pack. Proforged® Idler Arms are built to strict tolerances using the latest innovations in steering technology, ensuring crisp,...
      SAE1045 forged steeling housingsBall studs forged from ultra-strong SAE4140 chromoly steel
      $31.79
    • Tuff Stuff Performance® - One Wire Alternator
      (0 reviews)
      # 714493334
      Dodge Diplomat 1978, One Wire Alternator by Tuff Stuff Performance®. 1 Wire.
      Heavy Duty Copper Wound CoilsSpike Resistant Diodes
      $234.21 - $250.88
    • aFe® - Pro Series™ Rear Differential Cover
      (0 reviews)
      # 1479311818
      Pro Series™ Rear Differential Cover by aFe®. With Gear Oil. Upgrade your transmission with this finned aluminum pan and increase fluid capacity, improve fluid cooling and ease future maintenance jobs. It includes a magnetic drain...
      Leak Free SealCooling Fins
      $370.49 - $381.89
    • AEM® - Dynamics Module
      (0 reviews)
      # mpn4479686648
      Dynamics Module by AEM®. The AEM Vehicle Dynamics Module (VDM) is an AEMnet CANbus enabled device with an on-board 3-axis accelerometer, 3-axis gyrometer and 5Hz GPS + GLONASS that provides pinpoint position accuracy. The VDM’s GPS +...
      $375.00
    • Simpson® - Jr. Speedway Shark Fiber Reinforced Polymer White Racing Helmet
      (0 reviews)
      # 125879312
      Jr. Speedway Shark Fiber Reinforced Polymer White Racing Helmet by Simpson®. Includes Helmet Shield. Helmet Liner made from Nomex. These Simpson Jr. Speedway Shark helmets support the next generation of racers with the same great...
      Lightweight, aerodynamic outer shell with SAT features T-38Built-in BLD (Boundary Layer Design)
      $499.95
    • MagnaFlow® - Pre-OBDII Universal Fit Oval Body Catalytic Converter
      (0 reviews)
      # mpn1073832
      Dodge Diplomat with PRE-OBDII Models 1978, Pre-OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter:...
      Reduces harmful emissionsIncreased exhaust flow allows your engine to make more power
      $205.77




    CARiD is the ultimate source for premium-quality performance parts. With our extensive collection of performance upgrades, adding onto your vehicle's performance or improving its look is safe and easy. Boost the interior of your 1978 Dodge Diplomat with a set of racing seats, raise or lower your vehicle for an aggressive look, or add a set of high-performance brake rotors for superior braking. Unlock the hidden potential of your 1978 Dodge Diplomat that has been waiting to be released!


    • Add Power to Your Jeep
      Add Power to Your Jeep
      Fuel Up Your Success
      Fuel Up Your Success
    • Take Your Braking to a New Level
      Take Your Braking to a New Level
    • When the Best Gets Better
      When the Best Gets Better
      The Performance & Sound to Thrill
      The Performance & Sound to Thrill

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    1978 Dodge Diplomat Performance Parts Reviews

    Average rating:    4 - 4 reviews
    4.5 of 5
    Kooks
    Product very good. Love it.
    Posted by Jojie (Mississauga, ON) / August 8, 20182010 Toyota Corolla
    Was this review helpful for you? Yes
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