1978 Dodge D400 Car Parts & Accessories

You have come to the right place if you need new or replacement parts for your 1978 D400. Advance Auto carries over 850 aftermarket parts for your 1978 Dodge D400, along with original equipment manufacturer (OEM) parts. You will find amazing prices on 1978 D400 Transmission Parts and Clutch Systems. Plus, our selection of 1978 Body Parts for your D400 are some of the lowest in the market.

Find replacement parts and upgrades for your 1978 Dodge D400. Use our customer reviews of Automotive Accessories parts and others, along with user ratings on the many of the products we offer. You won’t find an easier way to shop for 1978 Dodge D400 performance parts, 1978 Dodge D400 body parts, interior components, or any type of part for that matter. Get your D400 upgraded or back in pristine shape by shopping Advance Auto Parts.

1978 Dodge D400 Body Parts

Below you can find the top 1978 Dodge D400 aftermarket accessories. Want to see the complete catalog of Body Parts? Click on “View All” to view each individual Dodge 1978 D400 part.

Westin – Universal Bumper Mount Kit (Part No.92230)

Universal Bumper Mount Kit

from

$72.99
Fey Diamondstep Bumpers are non-OE design full replacement bumpers for older model vans and pickups. Fey Diamondstep Bumpers are known for their diverse functionality, reliability and custom look.

Product Features:
  • Mount kit sold separately
  • Popular diamond tread design
  • Full size tongue weight of 800 lbs and 8,000 lbs trailer weight
  • Downsize and compact are 350 lbs tongue weight and 3,500 lbs is trailer weight certified
  • V5 tested certified to SAE J684
See More

AutoCraft – Window Handle (Part No.76960)

Window Handle

from

$8.99
Worn or broken window crank handle leading to difficult window operation? Made of durable material for reliable performance, this window crank handle replaces the original equipment handle.

Product Features:
  • Ideal replacement – this window crank handle matches the fit and function of the original equipment component
  • Durable construction – this window crank handle is made of durable material to withstand extended use
  • Easy to install – this window crank requires no special tools to install
  • Versatile design – this window crank handle is suitable for use in various locations in the vehicle
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Needa Parts – Door Hinge Pin And Bushing Assortment (Part No.38381)

Door Hinge Pin And Bushing Assortment

from

$5.29
This door hinge pin & bushing kit is designed to match the original parts required to restore door alignment and function on specified vehicles. Made of quality components, this kit is engineered for reliable performance and durability.

Product Features:
  • Direct replacement – this door hinge pin & bushing kit is designed to match the original pin and bushing required to restore the alignment and proper function of a door on specified vehicles
  • Ideal solution – this pin and bushing are reliable replacements for original components that have failed due to wear
  • Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Needa Parts – Door Hinge Pin and Bushing Kit – 2 Pins and 4 Bushings (Part No.38382)

Door Hinge Pin and Bushing Kit - 2 Pins and 4 Bushings

from

$14.99
Product Features:
  • Kits include all necessary hardware for a complete repair. Pins and bushings are also sold separately.
  • Meets or exceeds OEM standards
See More

CARR – Cab Mount, Multi-Fit, Set Of 2, Flat Step, Non-Extendable, Stationary, Aluminum (Part No.124031)

Cab Mount, Multi-Fit, Set Of 2, Flat Step, Non-Extendable, Stationary, Aluminum

from

$268.99
The stylish and innovative design of these steps add to a vehicle rugged off road look. Available in three low maintenance, extremely durable finishes to complement your vehicle appearance. Easily installed using our new multi mount system for superior strength and rigidity. Rocker panel installation provides for the strongest and easiest installation of any step products.

Product Features:
  • Exclusive New Multi Mount System
  • Made Of Corrosion Resistant, Durable Cast Aluminum Alloy
  • Rugged Diamond Tread Pattern Provides For Safe And Attractive Non Slip Surface
  • Unique Design Gives The Vehicle A Rugged Off Road Look, While Being A Stylish Accent For Today Vehicles
  • Strong Construction To Hold Up Under Extreme Conditions
  • Black Powder Coat Finish Features A Lightly Textured Matte Finish That Resists Scratching, Peeling And Fading
  • Strongest And Easy Installation
See More

CARR – Truck Step, Cab Mount; Multi-Fit; Set Of 2; Flat Step; Non-Extendable; Polished Aluminum (Part No.124032)

Truck Step, Cab Mount; Multi-Fit; Set Of 2; Flat Step; Non-Extendable; Polished Aluminum

from

$268.99
The stylish and innovative design of these steps add to a vehicle rugged off road look. Available in three low maintenance, extremely durable finishes to complement your vehicle appearance. Easily installed using our new multi mount system for superior strength and rigidity. Rocker panel installation provides for the strongest and easiest installation of any step products.

Product Features:
  • Exclusive New Multi Mount System
  • Made Of Corrosion Resistant, Durable Cast Aluminum Alloy
  • Rugged Diamond Tread Pattern Provides For Safe And Attractive Non Slip Surface
  • Unique Design Gives The Vehicle A Rugged Off Road Look, While Being A Stylish Accent For Todays Vehicles
  • Strong Construction To Hold Up Under Extreme Conditions
  • Mechanical Polished Finish That would not Rust, Crack Or Peel And Requires Very Little Maintenance
  • Strongest And Easy Installation
  • Limited Lifetime Warranty
See More

KAI – Door Seal (Part No.CH1390101)

Door Seal

from

$44.99
New Standard Replacement Driver Or Passenger Side Front Door Weatherstrip

Product Features:
  • Front
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

KAI – Door Mirror Glass (Part No.CH1323574)

Door Mirror Glass

from

$36.99
New Standard Replacement Driver And Passenger Side Replacement Mirror Glass, 10 7/8, Camper Style, Flat

Product Features:
  • 10.875, Camper Style, Flat, Flat Glass
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

KAI – Door Seal (Part No.GMK224442578P)

Door Seal

from

$119.99
New Goodmark Driver And Passenger Side Pair Of Door Weatherstrips, On Body

Product Features:
  • On Body
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

Dorman – Help – Exterior Door Handle Front Left (Part No.93502)

Exterior Door Handle Front Left

from

$47.49
Want a new exterior door handle that matches the original, for far less than going back to the dealership? This replacement door handle was engineered to match the fit and appearance of the stock handle on specific vehicle years, makes and models.

Product Features:
  • Matching appearance – this replacement exterior door handle was specifically designed to look and function the same as the original handle on particular vehicles
  • Seamless replacement – designed to match the dimensions and specifications of the handle that came stock on the vehicle
  • Excellent value – original equipment quality at a lower price
  • Ensure fit – this handle is vehicle position specific, so double check you have the correct handle for the same position and side of the vehicle you want to replace
See More

KAI – Door Mirror Glass (Part No.CH1323577)

Door Mirror Glass

from

$26.99
New Standard Replacement Driver And Passenger Side Mirror Glass, 9 5/8, Swing Out, Flat

Product Features:
  • 9.625, Swing Out, Flat, Flat Glass
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

CARR – Cab Mount, Multi-Fit, Set Of 2, Flat Step, Non-Extendable, Stationary, Aluminum (Part No.114031)

Cab Mount, Multi-Fit, Set Of 2, Flat Step, Non-Extendable, Stationary, Aluminum

from

$279.99
LD step will give the user easier access to the vehicle due to the wider and deeper stepping surface which extends further than our other steps. The LD step is available in our three durable finishes, and installation is a cinch with our mounting system.

Product Features:
  • Easier Entry And Exit From Your Vehicle
  • Wide Functional Step Area
  • Extends Further Than Our Current Steps
  • Made Of Corrosion Resistant, Durable Cast Aluminum Alloy For Extreme Longevity
  • New Aggressive And Appealing Tread Design For A Non-Slip Surface
  • Unique Design That Enhances The Looks Of Current Vehicle Body Styles
  • Resists Scratches, Peeling And Fading
  • Rocker Panel Installation Provides For The Strongest And Easiest Installation Of Any Step Products
See More

KAI – Mirror Assembly: Passenger Side, Power Adjustment, Foldable, 1 Pk (Part No.CH1321273)

Mirror Assembly: Passenger Side, Power Adjustment, Foldable, 1 Pk

from

$144.99
With a Serious and Unwavering Commitment to Providing Customers a Broad Range of High Quality Replacement Components, Equipment, and Parts to Repair and Accessorize Their Automobiles, Trucks, and Other Vehicles, We Are Offering a New Standard Replacement Passenger Side Power Door Mirror, 6 X 9, Chrome. It is Designed to Replace Your Existing Door Mirror. Check to Be Sure it Fits Your Vehicle.

Product Features:
  • 6 X 9, Chrome, Convex Glass
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

KAI – Window Regulator Assembly (Part No.GMK2244420782L)

Window Regulator Assembly

from

$69.99
New Goodmark Driver Side Front Window Regulator, Power, Without Motor

Product Features:
  • Power Without Motor
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

KAI – Window Regulator Assembly (Part No.GMK2244420782R)

Window Regulator Assembly

from

$69.99
New Goodmark Passenger Side Front Window Regulator, Power, Without Motor

Product Features:
  • Power Without Motor
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

KAI – Quarter Panel (Part No.GMK2244690722L)

Quarter Panel

from

$49.99
New Goodmark Driver Side Rear Lower Bedside, Long Bed Sweptline 16 Inches High X 27 Inches Wide

Product Features:
  • Long Bed Sweptline 16 Inches High X 27 Inches Wide
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

KAI – Truck Cab Extension (Part No.LKQ1825700)

Truck Cab Extension

from

$43.99
New Standard Replacement Driver Or Passenger Side Cab Corner, Extension, Club Cab, 18 X 13 X 1.38 Inches

Product Features:
  • Extension, Club Cab, 18 X 13 X 1.38 Inches, Made Of Steel
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

KAI – Window Channel (Part No.GMK2244431721)

Window Channel

from

$31.99
New Goodmark Driver Or Passenger Side Door Window Channel For Top And Back, 2 Required

Product Features:
  • 2 Required
  • Meets All Federal Motor Safety Standards
  • No Drilling Needed For Installation
  • No Modifications Needed For Installation
  • Direct Fit Replacement For Your Vehicle
  • Same Form Fit And Function As OE
  • Check Out The Large Selection Of Parts Available For Your Vehicle
See More

1978 D400 Transmission Parts

Customers frequently purchase these best-selling 1978 Dodge D400 Transmission Parts.

Permatex – High-Torque, High-Vibration RTV Silicone Gasket Maker, 13 OZ (Part No.82195)

High-Torque, High-Vibration RTV Silicone Gasket Maker, 13 OZ

from

$26.99
Permatex Ultra Grey is specified for high torque and high vibration applications. Ultra Grey offers a sensor-safe, low odor, non-corrosive formula and is OEM specified to fit dealership warranty requirements. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings.

Product Features:
  • High torque and rigidity
  • Sensor-safe, non-corrosive formula
  • OEM specified
  • Low-odor, non-corrosive formula
  • Ideal for closed spaced bolt patterns
See More

Driveworks – Oil Seal (Part No.S-7300S)

Oil Seal

from

$10.29
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Imperial – High Performance Transmission Oil Cooler (Part No.240516)

High Performance Transmission Oil Cooler

from

$85.99
Product Features:
  • Imperial high-performance transmission cooler
  • Size: 3/4″ x 10″ x 15-7/8″
  • SAE 45-degree fittings for maximum reliability
  • Electrostatic powder-coated to prevent corrosion
  • SAE 45 degree fittings for maximum reliability
  • Electrostatically powder coated to prevent corrosion
  • All aluminum lightweight construction
See More

National – Multi Purpose Seal (Part No.7300S)

Multi Purpose Seal

from

$16.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
See More

Driveworks – Oil Seal (Part No.S-331227H)

Oil Seal

from

$11.49
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
See More

Imperial – Maxi-Kool® XL Transmission Oil Cooler (Part No.243007)

Maxi-Kool® XL Transmission Oil Cooler

from

$73.99
The Imperial Maxi-Cool® XL’s plate and fin design offer excellent cooling efficiency in a compact, space-efficient design.

Product Features:
  • Imperial Maxi-Cool® plate and fin transmission cooler
  • Size: 3/4″ x 11″ x 7-1/2″
  • Mid-size and full-size cars, pickups
  • GVWR up to 20,000 lbs.; towing up to 2,500 lbs.
See More

B & M – Automatic Shifter, StarShifter (Part No.80675)

Automatic Shifter, StarShifter

from

$309.99
Features include NHRA/ IHRA reverse lockout, backup light switch, neutral safety switch, polished T-handle. Cable operated for quick installation and accurate shifting. For 2 and 3 speed applications.

Product Features:
  • Base Trims For Custom Fit
  • Cable Operated
  • Quick Installation
  • Accurate Shifting
  • NHRA/IHRA Reverse Lockout Meets Requirements
  • Includes Neutral Safety Switch
  • Polished Aluminum. T-Handle and Cable
See More

National – Bearings (Part No.A-35)

Bearings

from

$25.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Imperial – Maxi-Kool® XL Transmission Oil Cooler (Part No.243012)

Maxi-Kool® XL Transmission Oil Cooler

from

$81.99
Product Features:
  • Class “A” motor homes, large travel trailers, 5th-wheel trailers
  • GVWR up to 30,000 lbs.; towing up to 10,000 lbs.
See More

Felpro – Transmission Oil Pan Gasket (Part No.TOS 18583)

Transmission Oil Pan Gasket

from

$8.99
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
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
See More

Imperial – Econo-Kool® Transmission Oil Cooler (Part No.241018)

Econo-Kool® Transmission Oil Cooler

from

$65.99
Product Features:
  • Imperial Econo-Kool« tube and fin transmission cooler
  • Size: 3/4″ x 10″ x 15-7/8″
  • Class “A” motor homes, large travel trailers, 5th-wheel trailers
  • GVWR up to 26,000 lbs.; towing up to 10,000 lbs.
  • Compatible with OEM cooler systems
  • Ultrasonically soldered for reliability
  • 100% pressure testing to 150 PSI for quality assurance
  • High efficiency turbulators
See More

Imperial – Plate and Fin Style Trans Cooler 3/4" x 9-1/2" x 11" Heavy Duty (Part No.243008)

Plate and Fin Style Trans Cooler 3/4" x 9-1/2" x 11" Heavy Duty

from

$80.99
Product Features:
  • Imperial Rapid-Cool« plate and fin transmission cooler
  • Size: 3/4″ x 11″ x 9-1/2″
  • Pickup trucks and vans, class “C” motor homes, travel trailers to 24′
  • GVWR up to 24,000 lbs.; towing up to 5,000 lbs.
  • 33% more efficient than a comparable tube and fin design
See More

Imperial – Econo-Kool® Transmission Oil Cooler (Part No.242012)

Econo-Kool® Transmission Oil Cooler

from

$52.99
Product Features:
  • Mid-size and full-size cars, pickups
  • GVWR up to 18,000 lbs.; towing up to 3,500 lbs
  • Compatible with OEM cooler systems
  • Ultrasonically soldered for reliability
  • 100% pressure testing to 150 PSI for quality assurance
  • High efficiency turbulators
See More

Imperial – High Performance Transmission Oil Cooler (Part No.240514)

High Performance Transmission Oil Cooler

from

$81.99
High Performance Transmission Oil Cooler 3/4″ x 7-1/2″ x 15-1/2″. Heavy duty. Black. Imperial High Performance coolers are designed to provide outstanding cooling as well as complement other high-performance accessories.

Product Features:
  • Imperial high-performance transmission cooler
  • Size: 3/4″ x 7-1/2″ x 15-7/8″
  • SAE 45-degree fittings for maximum reliability
  • Electrostatic powder-coated to prevent corrosion
See More

National – Multi Purpose Seal (Part No.8609)

Multi Purpose Seal

from

$9.29
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
See More

National – Multi Purpose Seal (Part No.5206)

Multi Purpose Seal

from

$19.29
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today¿s vehicles.

Product Features:
  • Design type: spring loaded; multi-lip
  • Temperature range: -40░F to 225░F / -40░C to 107░C
  • Good low temperature capability
  • Low swell in hydrocarbon fluids
  • Delivers quality and reliable performance for every type of repair
See More

National – Bearings (Part No.25520)

Bearings

from

$8.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Permatex – The Right Stuff: Grey, 90 Minute Gasket Maker, 3 OZ (Part No.34328)

The Right Stuff: Grey, 90 Minute Gasket Maker, 3 OZ

from

$17.49
Permatex’s The Right Stuff 90 Minute Series offers the fastest return to service in a in just 90 minute! This leak-proof, elastomeric “Formed-in-place” material is more reliable and longer lasting than pre-cut gaskets. It is blowout resistant and protects against leaks and seepage caused by vibration and thermal expansion. The Right Stuff 90 Minute Grey is specified for high torque and high vibration applications and is formulated to meet or exceed performance standards for long-term sealability, durability and handling.

Product Features:
  • Designed to perform under higher torque loads associated with engines having closely spaced bolt patterns
  • Sensor-safe, non-corrosive, RTV silicone
  • Protects against leaks caused by vibration and thermal expansion
  • Meets performance specs of OE silicone gaskets
  • Quickly returns vehicle to service in just 90 minutes
See More

Imperial – High Performance Transmission Oil Cooler (Part No.240512)

High Performance Transmission Oil Cooler

from

$67.99
Product Features:
  • Imperial high-performance transmission cooler
  • Size: 3/4″ x 7-1/2″ x 12-1/2″
  • SAE 45-degree fittings for maximum reliability
  • Electrostatic powder-coated to prevent corrosion
  • SAE 45 degree fittings for maximum reliability
  • Electrostatically powder coated to prevent corrosion
  • All aluminum lightweight construction
See More

National – Multi Purpose Seal (Part No.9316)

Multi Purpose Seal

from

$17.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
See More

National – Multi Purpose Seal (Part No.331227H)

Multi Purpose Seal

from

$25.49
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
See More

National – Bearings (Part No.45220)

Bearings

from

$22.29
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

Imperial – Econo-Kool® Transmission Oil Cooler (Part No.242016)

Econo-Kool® Transmission Oil Cooler

from

$65.99
Product Features:
  • Imperial Econo-Kool« tube and fin transmission cooler
  • Size: 3/4″ x 7-1/2″ x 15-7/8″
  • Pickup trucks and vans, class “C” motor homes, travel trailers to 24′
  • GVWR up to 22,000 lbs.; towing up to 5,000 lbs.
  • Compatible with OEM cooler systems
  • Ultrasonically soldered for reliability
  • 100% pressure testing to 150 PSI for quality assurance
  • High efficiency turbulators
See More

Imperial – Transmission Oil Cooler (Part No.241015)

Transmission Oil Cooler

from

$145.99
Oil cooler 1-1/2″ x 12″ x 15-1/8″. Extra heavy-duty. Designed for severe-duty transmission oil cooling applications.

Product Features:
  • Imperial Econo-Kool® tube and fin transmission cooler
  • Size: 1-1/2″ x 12″ x 15 1/8″
  • Severe-duty transmission oil cooling applications
  • Towing with class “A” motor home or towing more than 10,000 lbs.
See More

National – Bearings (Part No.3720)

Bearings

from

$11.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

ATP – AUTO TRANS BAND (Part No.TX-47)

AUTO TRANS BAND

from

$41.99
AUTO TRANS BAND

National – Multi Purpose Seal (Part No.8160S)

Multi Purpose Seal

from

$9.99
National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:
  • Low swell in hydrocarbon fluids
  • Design type: spring loaded; multi-lip
  • Provides good low temperature capability
  • Temperature range: -40°F to 225°F; -40°C to 107°C
  • Delivers quality and reliable performance for every type of repair
See More

Permatex – Ultra Grey RTV Gasket Maker (9.5 oz.) (Part No.85084)

Ultra Grey RTV Gasket Maker (9.5 oz.)

from

$32.99
OEM specified. Designed specially for high-torque and high vibration applications, like those common in import engines, this premium RTV gasket maker exceeds manufacturers’ performance requirements. Sensor-safe, low odor, and non-corrosive. Maximum vibration resistance, with outstanding resistance to oils, cooling and shop fluids. Temperature range -65ºF to 500ºF (-54 Deg. C to 260 Deg. C) intermittent.

Product Features:
  • Designed specially for high-torque and high vibration applications
  • Maximum vibration resistance with outstanding resistance to oils, cooling and shop fluids
  • OEM specified
  • Low-odor, non-corrosive formula
  • Temperature Range: -65 Deg. F to 500 Deg. F (-54 Deg. C to 260 Deg. C)
See More

1978 D400 Clutch Systems

No need for it to be difficult to find Clutch Systems for your 1978 Dodge D400. Compare prices, read reviews, and buy your D400 Clutch Systems online for delivery or in-store pick up.

National – Bearings (Part No.203-FF)

Bearings

from

$10.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:
  • Premium bearing design matches OEM specifications
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Controlled heat treating process for lasting performance and extended bearing life
  • Industry leading coverage
  • Professional technicians know they can depend on National
See More

ATP – Automatic Transmission Flex Plate (Part No.Z-196)

Automatic Transmission Flex Plate

from

$14.99
Vehicles with automatic transmissions have a flex plate. The flex plates connects the engine and transmission. Most flex plates are made of a thick piece of sheet metal with bolt holes for the torque converter and teeth for the starter. The job of a flex plate is to allow for expansion of the torque converter as engine RPM increases. The constant expansion and contraction of a flex plate over time can result cracks and/or shearing of the flex plate. A damaged flex plate can create serious (expensive) damage. Broken flex plates can not be repaired, they must be replaced. ATP flex plates are made of high quality steel and contain the correct bolt hole spacing and ring gear teeth just like the original part to ensure long life and durability

Product Features:
  • Balanced to factory specs
  • Fit and function like the original parts
  • Restores normal operation
See More

Lakewood – Power Train (Part No.RM-945)

Power Train

from

$202.99
Power Train

Lakewood – Bellhsng: Dodge Truck 383-440 (Part No.15335)

Bellhsng: Dodge Truck 383-440

from

$1121.00
Hydroformed from premium quality steel. Uniform thickness for superior strength. Mig-welded threaded inserts. Stress relief in a stronger and safer bell housing. Precision machined assures proper bolt hole. Includes block plate and hardware. Approved by major racing sanctioning bodies. Meets SFI 6.1 specifications.

Product Features:
  • Hydroformed From Premium Quality Steel
  • Uniform Thickness For Superior Strength
  • Mig-Welded Threaded Inserts
  • Stress Relief In A Stronger/Safer Bellhousing
  • Precision Machined Assures Proper Bolt Hole
  • Includes Block Plate And Hardware
  • Approved By Major Racing Sanctioning Bodies
  • Meets SFI 6.1 Specifications
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Hays – Hays450 Cltch 66-85 Chry V8:11In:23Spl (Part No.91-3006)

Hays450 Cltch 66-85 Chry V8:11In:23Spl

from

$556.99
Hays450 Cltch 66-85 Chry V8:11In:23Spl

1978 D400 Automotive Accessories

Customers frequently purchased the following top Automotive Accessories for their 1978 D400. Click on “View All” to see more great prices on 1978 D400 aftermarket replacement Automotive Accessories.

Zerostart – Engine Heater, 600W 120V, 1 5/8 Inch Plug, Chrysler, Dodge, Eagle, Jeep, Mitsubishi (Part No.3100055)

Engine Heater, 600W 120V, 1 5/8 Inch Plug, Chrysler, Dodge, Eagle, Jeep, Mitsubishi

from

$40.99
Block heaters help to increase oil viscosity in cold weather in 2 to 5 hours. They also improve lubrication of engine parts and protect the engine from cold weather starts. The heaters decrease the amount of hydrocarbons put into the atmosphere when a vehicle is started in cold weather.
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Kat’s – Circulation Tank Heater; Thermostatically Controlled (Part No.13150)

Circulation Tank Heater; Thermostatically Controlled

from

$75.99
KATS was created and developed as a truly effective product for cold weather and hard starting problems. Owners and operators of diesel and gas operated equipment have long known that delayed starts and slow starts mean big money losses in labor, maintenance and operating revenue. KATS Circulation Tank Heaters are designed to do one thing – Start engines FAST! KATS Circulation Tank Heaters are truly superior heavy duty patented products. This heater is thermostatically controlled 135-175 degrees. Our components are 100% made in the USA. Customers will find KATS Circulation Tank Heaters are unbeatable in pricing, quality and performance anywhere. KAT’S manufacturing quality control procedures assure you the very best anytime you install and operate a KAT’s system.

Product Features:
  • Available for all size engines
  • Equipped with check valve
  • Fits most liquid cooled engines
  • Installations easier and simpler
  • New lower radiator hose connectors
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Kat’s – Lower Radiator Hose Heater (Part No.16600)

Lower Radiator Hose Heater

from

$56.99
Lower Radiator Hose Heater

Auto Ventshade (AVS) – Ventvisor Window Visors: Outside Mount, Smoke, Front, 2 Pc (Part No.92031)

Ventvisor Window Visors: Outside Mount, Smoke, Front, 2 Pc

from

$49.99
With a curved design, the AVS Original Ventvisor® is a side window deflector that lets fresh air in while keeping rain out. It also helps to keep the sun out of your eyes, reduce interior wind noise and fogging, and reduce interior heat. Available in dark smoke or chrome finishes for the custom look you want. Easy to install for a lifetime of use! Enjoy fresh air and comfort no matter the weather from the company that started it all!

Product Features:
  • Precision engineered for a custom fit on your vehicle with modern, curved design
  • Easy installation with no-drilling or special hardware required
  • Attaches easily with 3M automotive-grade adhesive above the window
  • Made from durable, impact-resistant acrylic
  • Available in dark smoke and chrome finishes
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Auto Ventshade (AVS) – Bugflector®, Hood Protector, Smoke, Medium Profile, 1 Pc (Part No.23061)

Bugflector®, Hood Protector, Smoke, Medium Profile, 1 Pc

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$59.99
AVS Bugflector® helps prevent damage to the hood, windshield and fenders from road debris and bugs. Bugflector comes in a traditional hood width design that improves the look of your vehicle and protects your investment. Bugflectors install quickly and are molded with a higher profile with custom fit applications for trucks, vans, SUVs and CUVs. Whether you drive a truck, SUV, CUV or passenger car, you can choose from the style that suits your design preferences and vehicle style.

Product Features:
  • Provides deflection to protect hood, fenders, and windshield
  • High profile, narrow tapered design for Trucks, SUVs, and Vans
  • Off-the-hood design allows for easy cleaning and waxing
  • Durable, impact-resistant acrylic construction
  • Available in dark smoke finish
  • Easy, no-drill installation
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Kat’s – Freeze Plug Heater (Part No.11607)

Freeze Plug Heater

from

$35.99
Freeze Plug Heater, also referred to as a block heater or frost plug heater is the most reliable and efficient way to pre-heat your engine. Operates by being directly submerged into coolant and heating the block. Requires mechanical ability to install.

Product Features:
  • Saves wear and tear on your engine
  • Simple installation directly into engine block
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1978 D400 Interior Products

Dorman – Help – Turn Signal Canceling Cam (Part No.49301)

Turn Signal Canceling Cam

from

$16.29
This turn signal cam is designed to match the fit and function of the original cam on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Direct replacement – this turn signal cam is designed to match the fit and function of the original cam on specified vehicles
  • Restores functionality – reliable replacement for an original part that has failed due to wear or collision damage
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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