1978 Cadillac Eldorado Transmission Parts
Find Your Specific 1978 Cadillac Eldorado Transmission Parts
Below you will find various in-demand Cadillac Transmission Parts, components and accessories for your 1978 Eldorado. Advance Auto Parts has popular Eldorado parts like Transmission Cooler and Parts, Automatic Transmission Pan and Gaskets, Transmission Seals and more. You’ll also find aftermarket and OEM Transmission Parts for other Eldorado model years including
1994,
1995,
1996,
1997,
1998,
1999,
2000,
2001,
2002 and more. Select a category of 1978 Cadillac Eldorado Transmission Parts below and start saving instantly.
Popular 1978 Cadillac Eldorado Transmission Parts Categories
Essential Transmission Parts for 1978 Cadillac Eldorados
Driveworks – Oil Seal (Part No.S-4950)
from
$4.99
Value-priced seal meets all cataloged application requirements.
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Product Features:
- Brand may vary by location
B & M – Transmission Kit, Master Overhaul Kit For TH400 (Part No.21041)
from
$459.99
These kits include all of the necessary components to rebuild your automatic transmission. OEM style gaskets included. Kits do not include overhaul instructions – please refer to factory shop manual for proper assembly procedures.
Product Features:
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Product Features:
- Complete High Perf. Or Racing Trans. Overhaul
- Includes Only OEM Valvebody Gaskets
- Instructions Not Included
Driveworks – Taper Bearing Set (Part No.S-A-2)
from
$8.99
Value-priced bearing meets all cataloged application requirements.
Product Features:
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Product Features:
- Brand may vary by location
Dorman – Transmission Line Connector (Part No.800-755)
from
$12.99
Made of quality materials, this automatic transmission oil cooler line connector matches the fit and function of a damaged original equipment connector to restore leak-free performance between the transmission and the oil cooler.
Product Features:
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Product Features:
- Quality replacement – this transmission cooler connector matches the fit and function of the original equipment connector
- Durable construction – this oil cooler line connector is made of quality materials for a precise fit and leak-free durability
- Performance tested – this connector has been rigorously pressure tested to ensure reliable performance
- Ideal shop supply – this connector is recommended to have on hand any time service is being performed on the transmission oil cooler line
National – Multi-Purpose Seal (Part No.6712NA)
from
$10.99
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:
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Product Features:
- Design type: spring loaded; single-lip
- Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
- Resistance to EP lubricants
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
B & M – Shifter Accessories, Bracket and Lever Kit Fits TH400/TH350/TH250/200-4R/700R4 (Part No.35498)
from
$48.49
Bracket and Lever Kit for TH-350, 400, 200, 700-R4, 4L60E and 200-4R transmissions.
Product Features:
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Product Features:
- Incl. Cable Bracket/Shift Lever/Spacers
- Incl. Swivel/Cotter Pin
- Natural Finish
- Sold as a kit
- Replacement part
Pro-King – Automatic Transmission Remanufactured Torque Converter (Part No.GM3)
from
$149.99
Remanufactured using industry-leading techniques to assure enhanced torque performance and extended life. Each unit is harmonically balanced and leak tested with any inherent OE weaknesses corrected. Pro-King torque converters are subject to random ISO 9001 quality tests before leaving the factory.
Product Features:
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Product Features:
- Meets or exceeds OE specifications
ATP – AT MODULATOR VALVE (Part No.JX-66)
from
$21.99
AT MODULATOR VALVE
ATP – REUSABLE AT PAN GSKT (Part No.JG-137)
from
$68.99
REUSABLE AT PAN GSKT
B & M – DEPTH PAN CHROME HP (Part No.20289)
from
$133.99
B&M Deep Transmission Pans increase the fluid capacity of your transmission, improving the cooling, allowing your transmission to work as efficiently as possible. Included drain plug, eliminates the need to drop the pan to drain the fluid.
Product Features:
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Product Features:
- Additional Oil Capacity
- More Cooling Ability
- No Dipstick Modification
- Some Include Fluid Pickup Extension
- Built-In Drain Plugs
- Chrome Plated Steel
B & M – Cable Bracket (Part No.30498)
from
$33.99
Cable Bracket, GM (Bandit style shifters only) APPLICATION: For TH-400, 350, 250, 200, 700R4, 200-4R with 80797, 80798 or 81050 shifter.
Product Features:
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Product Features:
- Shifter Service Parts
- Steel
- Natural Finish
- Sold individually
- Replacement for Bandit shifters
ATP – AT MASTER REPAIR KIT (Part No.JM-26)
from
$1236.00
AT MASTER REPAIR KIT
Imperial – Plate and Fin Style Transmission Cooler, Heavy Duty, 3/4" x 9-1/2" x 11" (Part No.243008)
from
$80.99
The Imperial Maxi-Cool XL’s plate and fin design offer excellent cooling efficiency in a compact, space-efficient design.
Product Features:
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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
- Compatible with OEM cooler systems
- Made with the highest quality materials
- 100% pressure testing to 150 PSI for quality assurance
- 33% more efficient than a comparable tube and fin design
Dorman – Transmission Oil Pan: Direct Fit, Steel, 12 Quart (Part No.265-808)
from
$54.99
On certain GM vehicles, when an original equipment transmission pan is leaking or in need of routine service, loosening and lowering that fluid-filled pan is a messy business. This Dorman OE FIX transmission oil pan is designed to match the performance of the original equipment pan but features a convenient drain plug to allow the transmission fluid to be removed before service. This steel pan is also upgraded with an E-coat finish for excellent resistance to corrosion, and includes a filter assembly, gasket and integrated magnet for a complete repair solution.
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Product Features:
- Service-friendly – this transmission fluid pan for specified vehicles features an integrated drain plug to allow the trans fluid to be drained before servicing the pan, eliminating messy spills
- Durable design – constructed to strict specifications and protected with an E-coat finish, this upgraded pan is engineered to withstand corrosion, impacts and leaks for long and reliable service life
- Complete solution – includes pan with integrated magnet, filter assembly and gasket for a hassle-free, professional repair
- Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
B & M – Shift Improver Kit For 65-87 TH400 Transmission (Part No.20260)
from
$73.99
The B&M Shift Improver Kit the easiest way to get the performance you’ve always wanted out of your automatic transmission, two modes to select from: Heavy Duty, or Street/Strip. It’s our least expensive and simplest to install kit.
Product Features:
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Product Features:
- Provides Crisp Shifts
- On Any Stock Automatic Transmission
- Eliminates Soft/Sluggish Shift
- Eliminates Shift Overlap
- Eliminate Clutch and Band Wear
- Improves Transmission Life
- Transmission Removal Not Required
ATP – AT OIL PUMP ORING (Part No.SO-21)
from
$9.59
AT OIL PUMP ORING
Felpro – Axle Housing Cover Gasket Irregular Shaped 8 Bolt Hole Gasket (Part No.RDS 30094)
from
$8.29
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
See More
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
Imperial – Transmission Oil Cooler Reinstallation Kit (Part No.248002)
from
$25.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
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Product Features:
- Transmission cooler reinstallation kit
- Contains part numbers 248001, 226201, 240250 and 4 hose clamps
- Provides all hardware for reinstallation of Imperial transmission coolers
- Contains nylon mounting rods, foam pads, locking buttons, hose and fitting
- Made of high grade nylon for easy installation
- Removable buttons for cooler/fan relocation
- Made for both transmission coolers and electric fan installation
- Comes with Quick Connect coupler
ATP – AUTO TRANS BAND (Part No.CX-32)
from
$29.99
AUTO TRANS BAND
ATP – AT FRT PUMP BUSHING (Part No.CB-4)
from
$11.79
AT FRT PUMP BUSHING
ATP – AT SOLENOID SEAL (Part No.JO-15)
from
$4.29
AT SOLENOID SEAL
National – Bearing Race (Part No.28622)
from
$17.49
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.
Product Features:
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Product Features:
- PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
- SMOOTH ROTATION – Crowned raceways for even load distribution
- OE-STYLE DESIGN – Engineered to meet OE specifications
- COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
- RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
ATP – AT CLUTCH PLATE (Part No.JC-50)
from
$9.59
AT CLUTCH PLATE
ATP – AT SEL SHAFT SEAL (Part No.SO-19)
from
$9.59
AT SEL SHAFT SEAL
Dorman – Transmission Oil Cooler Line: Exact Fit, Metal/Rubber (Part No.624-034)
from
$48.99
This automatic transmission oil cooler hose assembly is designed to match the fit and function of an original assembly. It is engineered from durable components as a reliable replacement for leaking or damaged lines on specified vehicles.
Product Features:
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Product Features:
- Direct replacement – this automatic transmission oil cooler hose assembly is designed to match the fit and function of the original equipment assembly on specified vehicle makes, models and years
- Ideal solution – engineered to help ensure proper transmission cooling when the original assembly is leaking or has failed from corrosion, collision, vibration, or fitting damage
- Durable construction – made of quality materials for reliable performance and Length service life
- Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
ATP – AT EXT HOUSING SEAL (Part No.JO-57)
from
$9.59
AT EXT HOUSING SEAL
Driveworks – Oil Seal (Part No.S-710096)
from
$10.49
Value-priced seal meets all cataloged application requirements.
Product Features:
See More
Product Features:
- Brand may vary by location
Schaeffler – Cone (Part No.KLM48548)
from
$13.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.
Product Features:
See More
Product Features:
- High-precision and High-quality components used in all KITs
- Coverage of classic and new high-tech solutions for the best system coverage
Upgrade your 1978 Cadillac Eldorado with Top-Quality Transmission Parts
When it comes to maintaining or upgrading your 1978 Cadillac Eldorado, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Cadillac or enhancing its overall performance, Transmission Parts are key to keeping your Eldorado functioning at its best. At Advance Auto Parts, we offer a wide selection of 67 Transmission Parts for the 1978 Cadillac Eldorado, designed to meet your needs without breaking the bank.
From
Transmission Cooler and Part
replacements to
Automatic Transmission Pan and Gaskets
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Transmission Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Transmission Parts for your 1978 Cadillac Eldorado at great prices.
Our Transmission Parts inventory for this model
ranges from just $4.29 to $1,349.99, with
an average price of $228.53.
Our 67 Transmission Parts in stock come from 13 trusted brands, so you’re sure to find the right part for your 1978 Cadillac Eldorado without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1978 Cadillac Eldorado, we stock popular OEM and aftermarket Transmission Parts from top names
like Driveworks, Imperial, Pro-King, and more.
Driveworks Transmission Parts
start at just $8.99 and boast an impressive 4.2 stars average rating from customers.
Imperial and Pro-King also bring quality to the table, with Transmission Parts available starting at $11.99, and at an average 4.1 stars rating.
With 474 customer reviews and counting, our 1978 Cadillac Eldorado Transmission Parts have a strong track record of reliability, ensuring you can trust your purchase.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Transmission Part upgrades. Explore related part types like Batteries and Chargers, Fluids and Chemicals
and more to make sure your 1978 Cadillac Eldorado is always ready to roll. We’re committed to providing you with everything you need to keep your Eldorado in top shape, all in one place.
Start shopping confidently below for your 1978 Cadillac Eldorado!
Best-Selling Transmission Cooler and Parts for 1978 Cadillac Eldorados
Enhance the driving experience in your Cadillac with 11 quality Transmission Cooler and Part components, starting at $11.99.
Imperial – High Performance Transmission Oil Cooler (Part No.240516)
from
$85.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
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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
- SAE 45 degree fittings for maximum reliability
- Electrostatically powder coated to prevent corrosion
- All aluminum lightweight construction
Imperial – Maxi-Kool XL Transmission Oil Cooler (Part No.243007)
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:
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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.
- Compatible with OEM cooler systems
- Made with the highest quality materials
- 100% pressure testing to 150 PSI for quality assurance
- 33% more efficient than a comparable tube and fin design
Imperial – Mounting Kit System (Part No.226201)
from
$11.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
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Product Features:
- Imperial mounting kit system
- For installation of transmission coolers and electric fans
- Provides quick, effective installation of Imperial products
- Contains nylon mounting rods, foam pads and locking buttons
- Aftermarket electric fan and cooler mounting rods
- Made with the highest quality materials
- Quality machined for durability
- Removable buttons for relocation
- Aftermarket electric fan and cooler mounting rods
- Made with the highest quality materials
- Quality machined for durability
- Removable buttons for relocation
Imperial – Maxi-Kool XL Transmission Oil Cooler (Part No.243012)
from
$85.99
The Imperial Maxi-Cool XL’s plate and fin design offer excellent cooling efficiency in a compact, space-efficient design.
Product Features:
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Product Features:
- Class “A” motor homes, large travel trailers, 5th-wheel trailers
- GVWR up to 30,000 lbs.; towing up to 10,000 lbs.
- Compatible with OEM cooler systems
- 33% more efficient than a comparable tube and fin design
Imperial – Econo-Kool Transmission Oil Cooler (Part No.241018)
from
$65.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
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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
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
Imperial – Plate and Fin Style Transmission Cooler, Heavy Duty, 3/4" x 9-1/2" x 11" (Part No.243008)
from
$80.99
The Imperial Maxi-Cool XL’s plate and fin design offer excellent cooling efficiency in a compact, space-efficient design.
Product Features:
See More
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
- Compatible with OEM cooler systems
- Made with the highest quality materials
- 100% pressure testing to 150 PSI for quality assurance
- 33% more efficient than a comparable tube and fin design
Imperial – Econo-Kool Transmission Oil Cooler (Part No.242012)
from
$52.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
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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
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
Imperial – High Performance Transmission Oil Cooler (Part No.240514)
from
$79.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
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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
- Up to Class C motorhomes, towing up to 5,000 pounds
- SAE 45 degree fittings for maximum reliability
- Electrostatically powder coated to prevent corrosion
- All aluminum lightweight construction
Imperial – Transmission Oil Cooler Reinstallation Kit (Part No.248002)
from
$25.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
Product Features:
- Transmission cooler reinstallation kit
- Contains part numbers 248001, 226201, 240250 and 4 hose clamps
- Provides all hardware for reinstallation of Imperial transmission coolers
- Contains nylon mounting rods, foam pads, locking buttons, hose and fitting
- Made of high grade nylon for easy installation
- Removable buttons for cooler/fan relocation
- Made for both transmission coolers and electric fan installation
- Comes with Quick Connect coupler
Imperial – High Performance Transmission Oil Cooler (Part No.240512)
from
$60.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
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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
- SAE 45 degree fittings for maximum reliability
- Electrostatically powder coated to prevent corrosion
- All aluminum lightweight construction
Imperial – Econo-Kool Transmission Oil Cooler (Part No.242016)
from
$65.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.
Product Features:
See More
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
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
Most Popular 1978 Cadillac Eldorado Automatic Transmission Pan and Gaskets
Customize your Cadillac with 5 Automatic Transmission Pan and Gaskets products
like Transmission Oil Pan Gaskets,
Transmission Pan Gaskets, and
Transmission Oil Pans, all
priced under $292.99.
Felpro – Transmission Oil Pan Gasket 13 Bolt Hole One Piece Gasket (Part No.TOS 18621)
from
$9.99
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:
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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
Mr. Gasket – Automatic Transmission Oil Pan (Part No.9762)
from
$77.99
These pans are offered in stock depth or deep with extra capacity and available in both steel and aluminum to fit your specific needs. Includes drain plug, gasket and hardware.
Product Features:
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Product Features:
- Overall Height: 2.0″
- Stock Depth and Capacity
- Includes: Drain Plug, Washer & Gasket
Mr. Gasket – Gaskets (Part No.61082MRG)
from
$44.49
These transmission oil pan gaskets are made with a glass-filled nylon carrier with molded rubber on both the top and bottom of the gasket. Each bolt hole has a torque limiter that helps to avoid over-torqueing the bolts for a reliable seal. These gasket are reusable and can be cleaned using soap and water. Ideal for applications that require frequent service. Made in the USA.
Product Features:
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Product Features:
- Molded rubber over glass filled nylon carrier
- Reusable ¿ easy cleaning w/ soap & water
- Reusable ┐ easy cleaning w/ soap & water
- Torque Limiters ¿ helps to avoid over torqueing gaskets
- Torque Limiters ┐ helps to avoid over torqueing gaskets
- Applications for many common transmissions
- Ideal for applications that require frequent service
- Made in the USA
B & M – Transmission Cast Deep Pan, Brushed Finish – TH400 (Part No.20280)
from
$292.99
Add fluid capacity to your transmission. Extra fluid means more cooling, and more cooling means better efficiency and performance. Add life to your transmission with a B&M Deep Pan! Adds 2 additional quarts to the system.
Product Features:
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Product Features:
- Additional Oil Capacity
- More Cooling Ability
- No Dipstick Modification
- Some Include Fluid Pickup Extension
- Built-In Drain Plugs
B & M – DEPTH PAN CHROME HP (Part No.20289)
from
$133.99
B&M Deep Transmission Pans increase the fluid capacity of your transmission, improving the cooling, allowing your transmission to work as efficiently as possible. Included drain plug, eliminates the need to drop the pan to drain the fluid.
Product Features:
See More
Product Features:
- Additional Oil Capacity
- More Cooling Ability
- No Dipstick Modification
- Some Include Fluid Pickup Extension
- Built-In Drain Plugs
- Chrome Plated Steel
Top Picks for 1978 Cadillac Eldorado Transmission Seals
Upgrade Cadillac Eldorados with top-quality Transmission Seals parts, including 6 OEM and aftermarket selections for your 1978 model.
National – Multi-Purpose Seal (Part No.6712NA)
from
$10.99
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:
See More
Product Features:
- Design type: spring loaded; single-lip
- Temperature range: -20 Deg. F to 300 Deg. F / -29 Deg. C to 49 Deg. C
- Resistance to EP lubricants
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
ATP – AT SEL SHAFT SEAL (Part No.SO-19)
from
$9.59
AT SEL SHAFT SEAL
Felpro – Axle Housing Cover Gasket Irregular Shaped 8 Bolt Hole Gasket (Part No.RDS 30094)
from
$8.29
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
See More
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
ATP – AT EXT HOUSING SEAL (Part No.JO-57)
from
$9.59
AT EXT HOUSING SEAL
National – Automatic Transmission Output Shaft Seal (Part No.470380V)
from
$11.29
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:
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Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -40 Deg. F to 400 Deg. F / -40 Deg. C to 204 Deg. C
- Excellent high temperature capabilities
- Compatible with wide range of fluids
- Delivers quality and reliable performance for every type of repair
Schaeffler – Shaft Seal (Part No.SS2569)
from
$5.19
Our wheel seals are engineered using only the highest-quality materials to meet vehicle manufacturer specificatons. We work with suppliers to design seals that meet FAG’s quality standards. Seals are designed to protect wheel end components from contamination – such as dirt, dust, and moisture – and prevent the loss of grease over the life of the bearing. The specifications for wheel seals are very demanding, and the type required depends on the specific application, position and vehicle class.
Product Features:
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Product Features:
- High-precision and High-quality components used in all KITs
- Coverage of classic and new high-tech solutions for the best system coverage
In-Demand Transmission Bearings for 1978 Cadillac Eldorados
Select from 5 premium Transmission Bearings parts for your 1978 Cadillac Eldorado, with prices ranging from $8.99 to $24.99.
Driveworks – Taper Bearing Set (Part No.S-A-2)
from
$8.99
Value-priced bearing meets all cataloged application requirements.
Product Features:
See More
Product Features:
- Brand may vary by location
Driveworks – Taper Bearing Cone (Part No.S-387-A)
from
$13.79
Value-priced bearing meets all cataloged application requirements.
Product Features:
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Product Features:
- Brand may vary by location
National – Tapered Roller Bearing Cone (Part No.387A)
from
$24.99
Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
Product Features:
See More
Product Features:
- PREMIUM MATERIALS – Precision manufactured using premium-grade steel for outstanding durability and performance
- SMOOTH ROTATION – Crowned raceways and rollers for even load distribution
- OE-STYLE DESIGN – Engineered to meet OE specifications
- COMPREHENSIVE COVERAGE – Industry-leading coverage for domestic and import applications
- RIGOROUS TESTING – Comprehensive testing throughout design and development processes by National engineers for quality you can count on
Schaeffler – Cone (Part No.KLM48548)
from
$13.99
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.
Product Features:
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Product Features:
- High-precision and High-quality components used in all KITs
- Coverage of classic and new high-tech solutions for the best system coverage
Schaeffler – Bearing – TRB (Tapered Roller Bearing) (Part No.KT2)
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$9.79
With advanced load-carrying capacity and compact design, tapered roller bearings are used in wheel bearings, transmissions, differentials, transfer cases and other miscellanous applications. FAG manufacturers over 100 million tapered roller bearings annually.
Product Features:
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Product Features:
- High-precision and High-quality components used in all KITs
- Coverage of classic and new high-tech solutions for the best system coverage
Most Sold 1978 Cadillac Eldorado Automatic Transmission Parts
Explore our best-selling Cadillac parts for the 1978 Eldorado among 11 OEM and aftermarket options starting from $4.29.
ATP – AT SOLENOID SEAL (Part No.JO-15)
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$4.29
AT SOLENOID SEAL
Pro-King – Automatic Transmission Vacuum Modulator (Part No.MD-48)
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$21.99
Fully adjustable vacuum modulator to maintain accurate shift points.
Product Features:
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Product Features:
- Meets or exceeds OE fit, form and function
Pro-King – Automatic Transmission Vacuum Modulator (Part No.MD-28)
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$33.99
Fully adjustable vacuum modulator to maintain accurate shift points.
Product Features:
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Product Features:
- Meets or exceeds OE specifications
ATP – AT OIL PUMP ORING (Part No.SO-21)
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$9.59
AT OIL PUMP ORING
ATP – AT MODULATOR VALVE (Part No.JX-76)
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$51.99
AT MODULATOR VALVE
ATP – AT MODULATOR VALVE (Part No.JX-66)
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$21.99
AT MODULATOR VALVE
ATP – AT FRT PUMP BUSHING (Part No.CB-4)
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$11.79
AT FRT PUMP BUSHING
Carquest Premium – Automatic Transmission Modulator Valve (Part No.VMC1001)
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$68.99
The transmission modulator valve is a vacuum operated mechanical device located on the transmission case. This valve will have a actuator rod extended into the transmission valve body inside the transmission which will control the flow of transmission fluid within the transmission to place the transmission in the most optimal forward gear selection.
Product Features:
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Product Features:
- Application matched component ensures the transmission gear position system can be returned to like new condition.
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
- This part will look and function just like the original unit being replaced.
B & M – Cable Bracket (Part No.30498)
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$33.99
Cable Bracket, GM (Bandit style shifters only) APPLICATION: For TH-400, 350, 250, 200, 700R4, 200-4R with 80797, 80798 or 81050 shifter.
Product Features:
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Product Features:
- Shifter Service Parts
- Steel
- Natural Finish
- Sold individually
- Replacement for Bandit shifters
ATP – AUTO TRANS BAND (Part No.JX-58)
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$29.99
AUTO TRANS BAND
ATP – AT CLUTCH PLATE (Part No.JC-50)
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$9.59
AT CLUTCH PLATE
Top-Rated Transmission Parts Brands For Your 1978 Cadillac Eldorado
Shop for the best-rated brands offering Transmission Parts and other products for your 1978 Cadillac Eldorados. Below you’ll find some of our best rated Transmission Parts from Driveworks, Imperial, and Pro-King, and more. Transmission Parts from these brands that fit a 1978 Eldorado start at just $8.99 and are rated as high as 4.2 stars. OEM and aftermarket Transmission Parts don’t get more top quality, durable, and affordable than from the brands below.
Popular Driveworks 1978 Cadillac Eldorado Transmission Parts
When it comes to maintaining or upgrading your 1978 Cadillac Eldorado, using quality Transmission Parts is essential to ensure durability and a perfect fit. Driveworks ticks all of those boxes. We offer a wide selection of Driveworks Transmission Parts, specifically designed for the 1978 Cadillac Eldorado. With over 2 Driveworks brand Transmission Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $8.99, with an average price of just $11.39. Plus, with over 48 customer reviews and an average rating of 4.2 stars, you can trust that our Driveworks Transmission Parts will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
Popular Imperial 1978 Cadillac Eldorado Transmission Parts
Imperial auto parts is one of the highest quality Transmission Part brands in the market. Any 1978 Cadillac Eldorado owner should feel confident when installing genuine Imperial parts in their vehicle. To ensure the best fit and performance for your 1978 Eldorado, Advance Auto Parts carries a full inventory of 3 Imperial Transmission Parts. Plus you will be keeping your Cadillac in peak condition while saving money because prices on these Imperial Transmission Parts range from $11.99 to $85.99, plus, with more than 38 customer reviews and an impressive 4.1 stars average rating, you can be confident the Fram Transmission Parts below will deliver on both quality and value.
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$73.99
(7)
Maxi-Kool XL Transmission Oil Cooler
“this transmission oil cooler is replacing my one on my 2000 dodge dakota its priced right mid size and easy to put in the ome one is 250 this is 60 an”
FAQs for 1978 Cadillac Eldorado Transmission Parts
Which Transmission Parts are best-sellers for 1978 Cadillac Eldorados?
Out of 67 Transmission Parts that fit 1978 Cadillac Eldorados, the following parts are the top sellers:
- Taper Bearing Set (5050499) – $8.99
- Automatic Transmission Vacuum Modulator (5152976) – $21.99
- Transmission Oil Cooler Reinstallation Kit (5670023) – $25.99
What’s the price range for 1978 Cadillac Eldorado Transmission Parts?
Transmission Part prices for the 1978 Cadillac Eldorado start at $4.29 and go up to $1,349.99 for the most premium parts.
What’s the average price of a Transmission Part for a 1978 Cadillac Eldorado?
The average price for Transmission Parts for the 1978 Cadillac Eldorado is $228.53. Keep in mind the variety of part types within our Transmission Part category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Transmission Parts for other Cadillac Eldorado model years?
What are the cheapest Transmission Parts for my 1978 Cadillac Eldorado?
The cheapest 1978 Cadillac Eldorado Transmission Parts we carry in stock are:
- AT SOLENOID SEAL (11239035) – $4.29
- Shaft Seal (50211164) – $5.19
- Oil Seal (5441811) – $6.49
- Axle Housing Cover Gasket Irregular Shaped 8 Bolt Hole Gasket (19780404) – $8.29
- Taper Bearing Set (5050499) – $8.99
What are the top-rated Transmission Parts that fit the 1978 Cadillac Eldorado?
Out of 474 reviews by customers, our 1978 Cadillac Eldorado Transmission Parts have an average customer rating of . These are some of the highest-rated Transmission Part types for the 1978 Cadillac Eldorado and their top-rated products:
- Torque Converter and Related Products
- Tork Master 2400 (17130009) – $382.99
- Automatic Transmission Remanufactured Torque Converter (5990130) – $149.99
- Automatic Transmission Pan and Gaskets
- Tork Master 2400 (17130009) – $382.99
- Automatic Transmission Remanufactured Torque Converter (5990130) – $149.99
- Transmission Connectors
- Tork Master 2400 (17130009) – $382.99
- Automatic Transmission Remanufactured Torque Converter (5990130) – $149.99
What types of Transmission Parts do you sell for my 1978 Cadillac Eldorado?
As of 3/1/26, these are some of the most in-demand types of Transmission Parts for a 1978 Cadillac Eldorado:
Can I get help with 1978 Cadillac Eldorado Transmission Part orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Cadillac Transmission Parts and more.
What is your return policy for Cadillac Eldorado Transmission Parts?
Advance Auto Parts keeps returns simple. For new Cadillac Eldorado Transmission Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
