1981 Dodge Diplomat Transmission Parts
Find Your Specific 1981 Dodge Diplomat Transmission Parts
Below you will find various in-demand Dodge Transmission Parts, components and accessories for your 1981 Diplomat. Advance Auto Parts has popular Diplomat parts like Transmission Bearings, Transmission Cooler and Parts, Transmission Seals and more. You’ll also find aftermarket and OEM Transmission Parts for other Diplomat model years including
1980,
1982,
1983,
1984,
1985,
1986,
1987,
1988,
1989 and more. Select a category of 1981 Dodge Diplomat Transmission Parts below and start saving instantly.
Popular 1981 Dodge Diplomat Transmission Parts Categories
Essential Transmission Parts for 1981 Dodge Diplomats
National – Bearing Race (Part No.M802011)
from
$14.99
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 – Automatic Transmission Speedometer Pinion Seal (Part No.SO-13)
from
$2.99
Product Features:
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- ATP Transmission Seals And Gaskets are exact fit, no compromise replacement parts
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 – AT SHF LINK BUSHING (Part No.TO-41)
from
$11.99
AT SHF LINK BUSHING
National – Tapered Roller Bearing Cone (Part No.M804049)
from
$32.49
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
Anchor – Transmission Mount: Rear, 1 Piece (Part No.2512)
from
$15.99
The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to CHRY 69-89; DODGE 65-90; PLYM 68-89;. Please verify your application.
Product Features:
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Product Features:
- MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
- MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
- HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
- SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
- HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
- For Years: 1965-1990
- Weight approx: 2 Lbs
- COMPLETE MOUNT
National – Multi-Purpose Seal (Part No.2506)
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:
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Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
- Good low temperature capability
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
Hays – Hays Race Conv 904 W/O Weights: 32-3600 (Part No.97-3B32F)
from
$1049.99
Hays Race Conv 904 W/O Weights: 32-3600
Carquest Premium – Multi-Use Connector (Part No.PTA1148)
from
$38.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
Product Features:
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Product Features:
- Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
- 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
ATP – AT OIL PUMP GASKET (Part No.TG-11)
from
$16.99
AT OIL PUMP GASKET
National – Multi-Purpose Bearing (Part No.A-2)
from
$15.99
Product Features:
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- CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
- 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
ATP – AUTO TRANS BAND (Part No.TX-47)
from
$41.99
AUTO TRANS BAND
Driveworks – Taper Bearing Set (Part No.S-A-17)
from
$11.29
Value-priced bearing meets all cataloged application requirements.
Product Features:
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Product Features:
- Brand may vary by location
Victor Reinz – Transmission Oil Pan Gasket (Part No.71-14935-00)
from
$10.29
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
Product Features:
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Product Features:
- Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Motive Gear – Differential Pinion Seal (Part No.8516N)
from
$12.29
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
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National – Tapered Roller Bearing Cone (Part No.JLM704649)
from
$25.49
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
ATP – AT SEL SHAFT SEAL (Part No.TO-15)
from
$8.99
AT SEL SHAFT SEAL
ATP – AT SOLENOID SEAL (Part No.JO-15)
from
$3.99
AT SOLENOID SEAL
B & M – Automatic Shifter, Pro Ratchet 3 and 4 Speed (Part No.80842)
from
$449.99
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:
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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
Driveworks – Auto Transmission Manual Shaft Seal (Part No.S-8609)
FAG US – Cone (Part No.KLM603049)
from
$23.79
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
ARP Auto Racing – For Use With Chrysler/ Dodge, 0.500" Under Head L, 7/16" – 20 Thread Size (Part No.240-7302)
from
$17.99
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:
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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
Imperial – High Performance Transmission Oil Cooler (Part No.240514)
from
$83.99
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
ATP – AT SEAL (Part No.TO-34)
from
$3.99
AT SEAL
Carquest – Neutral Safety Switch (Part No.S290)
from
$19.99
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
Product Features:
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Product Features:
- Designed to OE standards for ease of installation
- Our parts are 100% tested to verify both mechanical and electrical switching performance
- Decades of industry leading research and development focused on meeting the technician’s needs
- Robust design and high grade materials meet the stringent demands of today’s service professional
- BWD is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product
ATP – MASTER PLUS (Part No.TMS-16)
from
$229.99
MASTER PLUS
National – Tapered Roller Bearing Cone (Part No.M802048)
from
$23.99
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
ATP – AT OVERHAUL KIT (Part No.TGS-23)
from
$50.99
AT OVERHAUL KIT
Upgrade your 1981 Dodge Diplomat with Top-Quality Transmission Parts
When it comes to maintaining or upgrading your 1981 Dodge Diplomat, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Dodge or enhancing its overall performance, Transmission Parts are key to keeping your Diplomat functioning at its best. At Advance Auto Parts, we offer a wide selection of 79 Transmission Parts for the 1981 Dodge Diplomat, designed to meet your needs without breaking the bank.
From
Transmission Bearing
replacements to
Transmission Cooler and Parts
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 1981 Dodge Diplomat at great prices.
Our Transmission Parts inventory for this model
ranges from just $2.99 to $1,049.99, with
an average price of $135.10.
Our 79 Transmission Parts in stock come from 16 trusted brands, so you’re sure to find the right part for your 1981 Dodge Diplomat 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 1981 Dodge Diplomat, we stock popular OEM and aftermarket Transmission Parts from top names
like National, DriveWorks, Imperial, and more.
National Transmission Parts
start at just $14.99 and boast an impressive 4.3 stars average rating from customers.
DriveWorks and Imperial also bring quality to the table, with Transmission Parts available starting at $10.99, and at an average 4.3 stars rating.
With 4,771 customer reviews and counting, our 1981 Dodge Diplomat 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, Oil and Lubricants
and more to make sure your 1981 Dodge Diplomat is always ready to roll. We’re committed to providing you with everything you need to keep your Diplomat in top shape, all in one place.
Start shopping confidently below for your 1981 Dodge Diplomat!
Best-Selling Transmission Bearings for 1981 Dodge Diplomats
Enhance the driving experience in your Dodge with 14 quality Transmission Bearing components, starting at $7.99.
National – Bearing Race (Part No.M802011)
from
$14.99
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways 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 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
National – Multi-Purpose Bearing (Part No.A-2)
from
$15.99
Product Features:
See More
- CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
- 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
National – Bearing (Part No.M86649)
from
$15.29
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.
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 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
National – Multi-Purpose Bearing (Part No.A-17)
from
$15.99
Product Features:
See More
- CONSISTENT PERFORMANCE: Matched cup and cone components ensure consistent performance
- 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
National – Tapered Roller Bearing Cone (Part No.M802048)
from
$23.99
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
Driveworks – Taper Bearing Set (Part No.S-A-36)
from
$16.49
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.JLM704649)
from
$25.49
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
National – Tapered Roller Bearing Cone (Part No.M804049)
from
$32.49
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
Driveworks – Taper Bearing Cone (Part No.S-M-86649)
from
$8.79
Value-priced bearing meets all cataloged application requirements.
Product Features:
See More
Product Features:
- Brand may vary by location
National – Bearing Race (Part No.JLM704610)
from
$13.29
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways 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 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
National – Bearing Race (Part No.M804010)
from
$18.79
Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways 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 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
Driveworks – Tapered Roller Bearing (Part No.S-LM-603012)
FAG US – Bearing – TRB (Tapered Roller Bearing) (Part No.KT36)
from
$34.49
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
FAG US – Cone (Part No.KLM603049)
from
$23.79
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:
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
Most Popular 1981 Dodge Diplomat Transmission Cooler and Parts
Customize your Dodge with 11 Transmission Cooler and Parts products
like Transmission Oil Cooler Lines and
OE Transmission Coolers, all
priced under $85.99.
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:
See More
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
Product Features:
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- 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 – Plate and Fin Style Transmission Cooler, Light Duty, 3/4" x 5-7/8" x 11" (Part No.243006)
from
$61.99
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 6″
- Sub-compact to compact cars
- GVWR up to 18,000 lbs.
- Compatible with OEM cooler systems
- Compatible with OEM cooler systems
- Ultrasonically soldered for reliability
- 100% pressure testing to 150 PSI for quality assurance
- High efficiency turbulators
Imperial – Econo-Kool Transmission Oil Cooler (Part No.242010)
from
$55.99
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 5″ x 15-7/8″
- Compact and mid-size cars
- GVWR up to 16,000 lbs.; towing up to 2,500 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 – Econo-Kool Transmission Oil Cooler (Part No.242009)
from
$40.99
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 5″ x 12-1/2″
- Sub-compact to compact cars
- GVWR up to 12,000 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:
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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
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:
See More
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
$83.99
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 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:
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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
Imperial – High Performance Transmission Oil Cooler (Part No.240512)
from
$67.99
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 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:
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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
Top Picks for 1981 Dodge Diplomat Transmission Seals
Upgrade Dodge Diplomats with top-quality Transmission Seals parts, including 14 OEM and aftermarket selections for your 1981 model.
Driveworks – Oil Seal (Part No.S-7300S)
from
$10.99
Value-priced seal meets all cataloged application requirements.
Product Features:
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Product Features:
- Brand may vary by location
National – Multi Purpose Seal (Part No.7300S)
from
$17.79
Product Features:
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- Design type: spring loaded; multi-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
National – Multi-Purpose Seal (Part No.331228H)
from
$16.29
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; 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
Driveworks – Oil Seal (Part No.S-331227H)
from
$11.49
Value-priced seal meets all cataloged application requirements.
Product Features:
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Product Features:
- Brand may vary by location
National – Multi Purpose Seal (Part No.8609)
from
$9.99
Product Features:
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- 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
ATP – AT SEL SHAFT SEAL (Part No.TO-15)
from
$8.99
AT SEL SHAFT SEAL
ATP – Automatic Transmission Speedometer Pinion Seal (Part No.SO-13)
from
$2.99
Product Features:
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- ATP Transmission Seals And Gaskets are exact fit, no compromise replacement parts
ATP – AT TORQUE CONVT SEAL (Part No.TO-4)
from
$12.99
AT TORQUE CONVT SEAL
National – Multi-Purpose Seal (Part No.2506)
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:
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Product Features:
- Design type: spring loaded; multi-lip
- Temperature range: -40 Deg. F to 225 Deg. F / -40 Deg. C to 107 Deg. C
- Good low temperature capability
- Low swell in hydrocarbon fluids
- Delivers quality and reliable performance for every type of repair
ATP – AT EXT HOUSING SEAL (Part No.HO-8)
from
$13.29
AT EXT HOUSING SEAL
ATP – AT SEAL (Part No.TO-34)
from
$3.99
AT SEAL
ATP – AT OIL PUMP SEAL (Part No.TO-8)
from
$12.49
AT OIL PUMP SEAL
Motive Gear – Differential Pinion Seal (Part No.8516N)
from
$12.29
All Motive Gear products are engineered for their specific application and manufactured in state of the art facilities. All of our products undergo rigid quality control processes to insure proper fit, performance and longevity. Motive Gear products can be found in the winners circle at NHRA, IHRA, NMRA, NMCA, SODA, SCORE, BITD, Ultra-4 and NASCAR events because we offer unmatched selection and quality demanded by racers and their crew chiefs – the same quality and selection demanded by DIY customers and top mechanics. With four warehouses strategically located across North America, most Motive Gear orders arrive within 2-4 days. Win with Motive Gear!
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Driveworks – Auto Transmission Manual Shaft Seal (Part No.S-8609)
In-Demand Transmission Mounts for 1981 Dodge Diplomats
Select from 3 premium Transmission Mounts parts for your 1981 Dodge Diplomat, with prices ranging from $6.99 to $23.99.
Anchor – Transmission Mount: Rear, 1 Piece (Part No.2512)
from
$15.99
The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to CHRY 69-89; DODGE 65-90; PLYM 68-89;. Please verify your application.
Product Features:
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Product Features:
- MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
- MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
- HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
- SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
- HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
- For Years: 1965-1990
- Weight approx: 2 Lbs
- COMPLETE MOUNT
Anchor – Transmission Mount: Rear, 1 Piece (Part No.2525)
from
$6.99
The purpose of the mount is to support the engine and transmission on the chassis and dampen vibration and noise from reverberating to the rest of the vehicle. Engine and Transmission Mounts are engineered and manufactured to meet or exceed OEM specifications using the latest CAD/CAM engineering process to ensure superior quality, form, fit and function. Only premium quality materials are used in the manufacturing process to guarantee precise performance and maximum durability. Applicable to CHRY 65-89; DODGE 63-90; PLYM 67-89;. Please verify your application.
Product Features:
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Product Features:
- MAXIMUM LIFE & PERFORMANCE: Both natural and SBR (Styrene Butadiene) rubber provide good abrasion resistance and aging stability to ensure maximum life and performance.
- MEETS OR EXCEEDS DUROMETER MEASUREMENTS: All rubber material is manufactured to specific Durometer (hardness) measurements based on the vehicle’s application requirements.
- HARDENED STEEL FASTENERS: All fasteners are made of hardened steel with heat treated Grade #5 bolts.
- SUPERIOR BOND: A special Chemlock® bonding agent is used to ensure a superior rubber-to-metal bond.
- HYDRAULIC MOUNT DESIGN: Hydraulic Mounts (applicable where OE) are designed for most front wheel drive vehicles because transverse drive train mounting.
- For Years: 1963-1990
- Weight approx: 1 Lbs
- INSERT ONLY
Energy Suspension – Performance Transmission Mount (Part No.5.1101R)
from
$23.99
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:
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Product Features:
- Made from HYPER-Flex Polyurethane
- Firm Enough for Huge Amounts of Horsepower/Torque
- Soft Enough Not to Transmit Vibration
Most Sold 1981 Dodge Diplomat Automatic Transmission Parts
Explore our best-selling Dodge parts for the 1981 Diplomat among 5 OEM and aftermarket options starting from $3.99.
ATP – AT SOLENOID SEAL (Part No.JO-15)
from
$3.99
AT SOLENOID SEAL
ATP – AT SHF LINK BUSHING (Part No.TO-41)
from
$11.99
AT SHF LINK BUSHING
ATP – AUTO TRANS BAND (Part No.TX-47)
from
$41.99
AUTO TRANS BAND
ATP – AUTO TRANS BAND (Part No.TX-18)
from
$60.99
AUTO TRANS BAND
ATP – AUTO TRANS BAND (Part No.TX-40)
from
$27.99
AUTO TRANS BAND
Top-Rated Transmission Parts Brands For Your 1981 Dodge Diplomat
Shop for the best-rated brands offering Transmission Parts and other products for your 1981 Dodge Diplomats. Below you’ll find some of our best rated Transmission Parts from National, DriveWorks, and Imperial, and more. Transmission Parts from these brands that fit a 1981 Diplomat start at just $10.99 and are rated as high as 4.3 stars. OEM and aftermarket Transmission Parts don’t get more top quality, durable, and affordable than from the brands below.
Popular National 1981 Dodge Diplomat Transmission Parts
When it comes to maintaining or upgrading your 1981 Dodge Diplomat, using quality Transmission Parts is essential to ensure durability and a perfect fit. National ticks all of those boxes. We offer a wide selection of National Transmission Parts, specifically designed for the 1981 Dodge Diplomat. With over 3 National brand Transmission Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $14.99, with an average price of just $16.36. Plus, with over 9 customer reviews and an average rating of 4.3 stars, you can trust that our National 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.
from
$17.79
(3)
Multi Purpose Seal
“Fit perfectly and stopped the leak. For anyone who needs to know, I used this seal for my Tremec TKO 600 transmission. This seal is a direct replaceme”
Popular DriveWorks 1981 Dodge Diplomat Transmission Parts
DriveWorks auto parts is one of the highest quality Transmission Part brands in the market. Any 1981 Dodge Diplomat owner should feel confident when installing genuine DriveWorks parts in their vehicle. To ensure the best fit and performance for your 1981 Diplomat, Advance Auto Parts carries a full inventory of 3 DriveWorks Transmission Parts. Plus you will be keeping your Dodge in peak condition while saving money because prices on these DriveWorks Transmission Parts range from $10.99 to $16.49, plus, with more than 96 customer reviews and an impressive 4.3 stars average rating, you can be confident the Fram Transmission Parts below will deliver on both quality and value.
FAQs for 1981 Dodge Diplomat Transmission Parts
Which Transmission Parts are best-sellers for 1981 Dodge Diplomats?
Out of 79 Transmission Parts that fit 1981 Dodge Diplomats, the following parts are the top sellers:
- Multi-Purpose Bearing (3275809) – $15.99
- Tapered Roller Bearing Cone (5052513) – $23.99
- Transmission Oil Pan Gasket 14 Bolt Hole One Piece Gasket (5785251) – $8.99
What’s the price range for 1981 Dodge Diplomat Transmission Parts?
Transmission Part prices for the 1981 Dodge Diplomat start at $2.99 and go up to $1,049.99 for the most premium parts.
What’s the average price of a Transmission Part for a 1981 Dodge Diplomat?
The average price for Transmission Parts for the 1981 Dodge Diplomat is $135.10. 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 Dodge Diplomat model years?
What are the cheapest Transmission Parts for my 1981 Dodge Diplomat?
The cheapest 1981 Dodge Diplomat Transmission Parts we carry in stock are:
- Automatic Transmission Speedometer Pinion Seal (11236107) – $2.99
- AT SOLENOID SEAL (11239035) – $3.99
- AT SEAL (11236293) – $3.99
- Auto Transmission Manual Shaft Seal (11494000) – $3.99
- Transmission Mount: Rear, 1 Piece (5303028) – $6.99
What are the top-rated Transmission Parts that fit the 1981 Dodge Diplomat?
Out of 4,771 reviews by customers, our 1981 Dodge Diplomat Transmission Parts have an average customer rating of . These are some of the highest-rated Transmission Part types for the 1981 Dodge Diplomat and their top-rated products:
- Automatic Transmission Pan and Gaskets
- Transmission Oil Pan Gasket 14 Bolt Hole One Piece Gasket (5785251) – $8.99
- Transmission Oil Pan Gasket 14 Bolt Hole One Piece Gasket (5785235) – $9.99
- Transmission Cooler and Parts
- Transmission Oil Pan Gasket 14 Bolt Hole One Piece Gasket (5785251) – $8.99
- Transmission Oil Pan Gasket 14 Bolt Hole One Piece Gasket (5785235) – $9.99
- Transmission Seals
- Transmission Oil Pan Gasket 14 Bolt Hole One Piece Gasket (5785251) – $8.99
- Transmission Oil Pan Gasket 14 Bolt Hole One Piece Gasket (5785235) – $9.99
What types of Transmission Parts do you sell for my 1981 Dodge Diplomat?
As of 11/2/25, these are some of the most in-demand types of Transmission Parts for a 1981 Dodge Diplomat:
Can I get help with 1981 Dodge Diplomat Transmission Part orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Dodge Transmission Parts and more.
What is your return policy for Dodge Diplomat Transmission Parts?
Advance Auto Parts keeps returns simple. For new Dodge Diplomat Transmission Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
