1978 Dodge Diplomat Transmission Parts

Essential 1978 Dodge Diplomat Transmission Parts

ATP – AT SHF LINK BUSHING (Part No.TO-41)

AT SHF LINK BUSHING

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$11.99
AT SHF LINK BUSHING

ATP – AT OIL PUMP GASKET (Part No.TG-11)

AT OIL PUMP GASKET

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$16.99
AT OIL PUMP GASKET

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
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ATP – AT SHIFT KIT (Part No.TK-2)

AT SHIFT KIT

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$74.99
AT SHIFT KIT

Driveworks – Auto Transmission Manual Shaft Seal (Part No.S-8609)

Auto Transmission Manual Shaft Seal

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$3.29
Product Features:
  • Brand may vary by location
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Driveworks – Taper Bearing Cup (Part No.S-M-88010)

Taper Bearing Cup

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$5.29
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Driveworks – Taper Bearing Set (Part No.S-A-36)

Taper Bearing Set

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$16.29
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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ATP – AT OVERHAUL KIT (Part No.TGS-23)

AT OVERHAUL KIT

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$50.99
AT OVERHAUL KIT

Felpro – Manual Transmission Gasket Set (Part No.TS 13381-5)

Manual Transmission Gasket Set

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$50.99
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 and manufactured specifically for the repair environment
  • Unsurpassed quality you can trust
  • Includes all parts needed to complete the repair
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Driveworks – Oil Seal (Part No.S-2506)

Oil Seal

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$7.49
Value-priced seal meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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National – Multi Purpose Seal (Part No.5126)

Multi Purpose Seal

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$18.99
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
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Felpro – Transmission Oil Pan Gasket (Part No.TOS 18583)

Transmission Oil Pan Gasket

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$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
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ATP – AUTO TRANS BAND (Part No.TX-18)

AUTO TRANS BAND

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$60.99
AUTO TRANS BAND

B & M – Transmission Cast Deep Pan, Brushed Finish TF727/ 518&618/48RE Cummins (Part No.10280)

Transmission Cast Deep Pan, Brushed Finish TF727/ 518&618/48RE Cummins

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$309.99
Our Hi-Tek deep transmission pans are constructed from A356-T6 aluminum and are cast with thick internal and external fins, adding additional strength and increased cooling properties. The deep pan design increases fluid capacity by 4 quarts over the stock O.E. steel pan. All these features combined help dissipate heat quicker netting lower transmission and fluid temperatures prolonging the life of your transmission, transmission fluid and corresponding components. Other features for this popular pan include a filter, filter extension, gasket and drain port with magnetic drain plug for clean and easy servicing. Also includes a 1/8 inch NPT temperature sensor port for easily adding a temp gauge for monitoring transmission temperatures while daily driving, towing or racing. Includes detailed instructions with all necessary hardware for an easy at home installation. Note: Does not increase fluid capacity for the 48RE transmission.

Product Features:
  • Additional Oil Capacity
  • More Cooling Ability
  • No Dipstick Modification
  • Some Include Fluid Pickup Extension
  • Built-In Drain Plugs
  • Cast Aluminum
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B & M – Automatic Shifter, Pro Ratchet 3 and 4 Speed (Part No.80842)

Automatic Shifter, Pro Ratchet 3 and 4 Speed

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$419.99
The Pro Ratchet shifter is one of our most popular and easiest to operate race shifters. Features include positive ratcheting design that self-centers the handle after each shift giving you maximum clearance behind the shifter and will not allow you to mi

Product Features:
  • Single Hand Operated Reverse Lockout
  • Reverse Lockout Meets NHRA And IHRA Requirements
  • Quick And Easy To Operate
  • Stick Always Returns To Center Position
  • Easiest Unit To Double Shift w/Air/CO2/Electric Mech
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ATP – AT TORQUE CONVT SEAL (Part No.TO-4)

AT TORQUE CONVT SEAL

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$12.99
AT TORQUE CONVT SEAL

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
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Energy Suspension – Performance Transmission Mount (Part No.5.1101R)

Performance Transmission Mount

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$24.99
A true performance application component for cars, trucks, hot rod, for racing and competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.

Product Features:
  • Made from HYPER-Flex Polyurethane
  • Firm Enough for Huge Amounts of Horsepower/Torque
  • Soft Enough Not to Transmit Vibration
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ATP – AT EXT HOUSING SEAL (Part No.HO-8)

AT EXT HOUSING SEAL

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$11.99
AT EXT HOUSING SEAL

Carquest Premium – Neutral Safety Switch Connector (Part No.PTA1148)

Neutral Safety Switch Connector

from

$29.49
CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Product Features:
  • Premium quality materials for longer service life
  • Sealed connections (where applicable) to prevent environmental corrosion and performance issues
  • Global coverage for import and/or domestic applications
  • OE specified wire gauge to ensure a reliable electrical connection
  • Designed to meet or exceed OE specifications in form, fit and function
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ATP – AT SOLENOID SEAL (Part No.JO-15)

AT SOLENOID SEAL

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$3.99
AT SOLENOID SEAL

Driveworks – Tapered Roller Bearing (Part No.S-M-802048)

Tapered Roller Bearing

from

$16.99
Product Features:
  • Brand may vary by location
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ATP – A/T FLYWHEEL BOLT (Part No.ZX-2116)

A/T FLYWHEEL BOLT

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$10.99
A/T FLYWHEEL BOLT

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

Maxi-Kool® XL Transmission Oil Cooler

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$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.
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National – Bearings (Part No.A-35)

Bearings

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$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
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ARP Auto Racing – For Use With Chrysler/ Dodge, 0.500" Under Head L, 7/16" – 20 Thread Size (Part No.240-7302)

For Use With Chrysler/ Dodge, 0.500" Under Head L, 7/16" - 20 Thread Size

from

$14.49
You can forget about the problem of shearing a torque converter bolt after you install these super strong 200,000 PSI gems. They are designed for each specific application and provide the optimum grip. Kits come with hardened parallel ground washers.

Product Features:
  • Super Strong, Rated At 200,000 PSI
  • Designed For Specific Applications
  • Delivers ARP Quality And Reliability
  • Made In USA
  • 7/16″-20 Thread Size
  • 0.50″ Underhead Length
  • Set of 4
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National – Multi Purpose Seal (Part No.2506)

Multi Purpose Seal

from

$15.49
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

1978 Dodge Diplomat Transmission 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 Transmission Parts. With 80 Transmission Parts ranging in price from $2.79 to $529.99, you’re sure to find everything you need for your 1978 Dodge Diplomat.

Brands matter. If you want to shop a specific Transmission Parts brand, we stock 15 different brands like Imperial, National, and Felpro. 1978 Dodge Diplomat Transmission Parts start as low as $2.79!

One of the best ways to find top quality OEM or aftermarket Transmission Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 5,550 extensive product reviews on 1978 Dodge Diplomat Transmission Parts. Some of the top-rated Transmission Parts products we carry are Oil Seal with 4.8 stars and Transmission Oil Pan Gasket with 4.6 stars.

Did we mention you can order your Transmission 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 Transmission Parts inventory for your 1978 Dodge Diplomat below to get started!

Top-Rated Transmission Parts Brands For Your 1978 Dodge Diplomat

Trusted Transmission 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 Imperial, National, Felpro, and even more.

Popular ATP Transmission Parts

You’ll find popular ATP brand products across Automatic Transmission Parts. All are waiting to get your 1978 Dodge Diplomat back on the road. Some of the top-rated ATP products in these categories are:
AT SOLENOID SEAL
from $3.99
(2)
AT SOLENOID SEAL
Automatic Transmission Fluid Filler Tube Seals

FAQs for 1978 Dodge Diplomat Transmission Parts

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

Out of 80 Transmission Parts for the 1978 Dodge Diplomat, the most popular in our inventory are:
Bearings
from $25.99
(23)
Bearings
Manual Transmission Differential Bearings
Econo-Kool® Transmission Oil Cooler
from $39.99
(10)
Econo-Kool® Transmission Oil Cooler
OE Transmission Coolers
High-Torque, High-Vibration RTV Silicone Gasket Maker, 13 OZ
from $26.99
(7)
High-Torque, High-Vibration RTV Silicone Gasket Maker, 13 OZ
Transmission Pan Gaskets

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

Top-rated Transmission Parts for your 1978 Dodge Diplomat based on customer reviews/ratings are:
Oil Seal
from $11.49
(87)
Oil Seal
“Perfect multi use”
Transmission Oil Pan Gasket
from $8.99
(46)
Transmission Oil Pan Gasket
“i used a slight coating of grey rtv on pan side of gasket, and no sealant on trans side of gasket. worked perfect, no leaks”
Transmission Oil Pan Gasket
from $8.29
(13)
Transmission Oil Pan Gasket
“Sealed up the pan without any leaks. Done.”