1978 Dodge B300 Air Conditioning Parts
Keep Your 1978 Dodge B300 in Top Shape with Quality Air Conditioning Parts
Whether you’re repairing or upgrading your Air Conditioning Part, using high-quality parts is key to keeping your 1978 Dodge B300 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including AC Compressor Without Clutch, Accumulator and Receiver Driers, and Expansion Valve and Orifice Tubes. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Top-Rated Air Conditioning Parts from Trusted Brands
Looking for a reliable Air Conditioning Part? We’ve got you covered with options from brands you know and trust like Factory Air. For example, Factory Air Air Conditioning Parts start at just $20.99 with an average 4.4 star rating. With over 128 reviews and a solid 2 star average, you can shop with confidence knowing other Dodge B300 owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1978 Dodge B300 Air Conditioning Part at Advance Auto Parts is around $21.55, with a range that starts at $0.99 and goes up to $377.99. With 12 options in stock from 4 trusted brands, finding the right fit is easy. Popular picks like 5-Wire Style Relay, Green Round O-Ring (sold by each), and Green Round O-Ring (sold by each) start at just $1.99 and offer a great balance of form and function.
Explore Related Parts
While you’re upgrading or replacing your Air Conditioning Part, don’t forget to check out other key components like Blower Motor and Related Products and Engine Cooling Parts. At Advance Auto Parts, we’re here to help you keep your 1978 Dodge B300 in peak condition, inside and out.
Find Your Specific 1978 Dodge B300 Air Conditioning Parts
Looking for the perfect Air Conditioning Part for your 1978 Dodge B300? You’re in the right place. Below, you’ll find links to various types of Air Conditioning Parts that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Air Conditioning Parts, ensuring durability and a precise fit for your Dodge B300. Whether you’re driving a 1978 model or another popular model year like
1975,
1976,
1977,
1979, and
1980, we’ve got you covered. Purchasing Air Conditioning Parts from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Air Conditioning Parts that fit your vehicle.
Essential 1978 Dodge B300 Air Conditioning Parts
Dorman – 5-Wire Style Relay (Part No.85170)
from
$18.99
This HVAC relay connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.
Product Features:
See More
Product Features:
- Direct replacement – this HVAC relay connector matches the appearance and function of the factory hardware on specified applications
- Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
- Durable construction – this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Factory Air – Green Round O-Ring (sold by each) (Part No.24650)
from
$1.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
See More
Carquest Premium – New Chrysler C171 Compressor with Clutch (Part No.T58101)
from
$377.99
Manufactured Compressors are built in a ISO9001:2015 Certified facility to ensure consistent quality standards in the manufacturing process.
Product Features:
See More
Product Features:
- All compressors go through sophisticated testing and leak test processes
- Includes specific electrical connector to eliminate splicing
- For ease of installation this compressor includes all gaskets, O-rings or sealing washers needed to repair your car
- Validated for fit, form, and function to OE standards
- Manufactured Compressors meet or exceed OE specifications
- Manufactured Compressors are validated for the equivalent of 100,000 miles
- Manufactured Compressors come pre-charged with 3 ounces of PAG oil for R134a or R1234yf applications
- Manufactured Compressors are individually vacuum, pressure, and Helium Mass Spectrometer tested to ensure no leaks
- Manufactured Compressors come with the R12/R134A/1234yf required O-rings /sealing washers to install the compressor
Factory Air – Compressor Discharge Port Gasket (sold by each) (Part No.24136)
from
$2.99
Steel construction; Compatible with R12 And R134A; High quality construction; Oil resistant; Universal applications
See More
Carquest Premium – A/C Filter Drier (Part No.T33259)
from
$39.99
Carquest Accumulators and Receiver Driers are designed to store, filter and dry the air conditioning refrigerant to provide proper performance and durability for the air conditioning system. They are manufactured to meet or exceed original equipment specifications.
Product Features:
See More
Product Features:
- All parts meet or exceed original equipment standards for moisture absorption, pressure and temperature resistance, air tightness, vibration resistance, corrosiveness, and pulse pressure.
- Desiccant is 100% tested and assembled in a controlled environment to ensure performance meets or exceeds original equipment standards.
- All accumulators and receiver driers are helium leak tested prior to packaging.
- O-Rings necessary for installation are included.
Carquest Premium – A/C Filter Drier (Part No.T33554)
from
$28.99
Carquest Accumulators and Receiver Driers are designed to store, filter and dry the air conditioning refrigerant to provide proper performance and durability for the air conditioning system. They are manufactured to meet or exceed original equipment specifications.
Product Features:
See More
Product Features:
- All parts meet or exceed original equipment standards for moisture absorption, pressure and temperature resistance, air tightness, vibration resistance, corrosiveness, and pulse pressure.
- Desiccant is 100% tested and assembled in a controlled environment to ensure performance meets or exceeds original equipment standards.
- All accumulators and receiver driers are helium leak tested prior to packaging.
- O-Rings necessary for installation are included.
Carquest Premium – A/C Filter Drier (Part No.T33340)
from
$43.99
Carquest Accumulators and Receiver Driers are designed to store, filter and dry the air conditioning refrigerant to provide proper performance and durability for the air conditioning system. They are manufactured to meet or exceed original equipment specifications.
Product Features:
See More
Product Features:
- All parts meet or exceed original equipment standards for moisture absorption, pressure and temperature resistance, air tightness, vibration resistance, corrosiveness, and pulse pressure.
- Desiccant is 100% tested and assembled in a controlled environment to ensure performance meets or exceeds original equipment standards.
- All accumulators and receiver driers are helium leak tested prior to packaging.
- O-Rings necessary for installation are included.
Factory Air – Green Round O-Ring (sold by each) (Part No.24608)
from
$1.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
See More
Factory Air – Green Round O-Ring (sold by each) (Part No.24610)
from
$0.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
See More
Factory Air – Cap & Valve A/C System Seal Kit (Part No.26777)
from
$20.99
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 Factory Air.
Product Features:
See More
Product Features:
- All the seals needed to complete the job
- Compatible with both R12 and R134a refrigerants
- SUV and rear air applications
- Application specific
- All the seals needed to complete the job
- Compatible with both R12 and R134a refrigerants
- SUV and rear air applications
- Application specific
KAI – A/C Expansion Valve (Part No.ACX010999)
from
$52.99
New Standard Replacement A/C Expansion Valve
Product Features:
See More
Product Features:
- Meets All Federal Motor Safety Standards
- No Drilling Needed For Installation
- No Modifications Needed For Installation
- Direct Fit Replacement For Your Vehicle
- Same Form Fit And Function As OE
- Check Out The Large Selection Of Parts Available For Your Vehicle
Carquest Premium – A/C Block Type Flange Expansion Valve (Part No.T38849)
from
$29.49
Carquest Expansion Valves are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each expansion valve is manufactured to original equipment specifications to perform its function even in the harshest climates. Each part is supplied with the necessary gaskets and o-rings for installation.
Product Features:
See More
Product Features:
- The bodies of these expansion valves are machined from a single block of aluminum or brass metal.
- Each expansion valve has settings for tonnage and superheat based on the vehicle specifications.
- Each expansion valve is tested for function and leakage according to OEM specifications to ensure optimal performance of the air conditioning system.
- O-Rings necessary for installation are included.
Carquest Premium – A/C TXV O-Ring Expansion Valve (Part No.T38844)
from
$38.99
Carquest Expansion Valves are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each expansion valve is manufactured to original equipment specifications to perform its function even in the harshest climates. Each part is supplied with the necessary gaskets and o-rings for installation.
Product Features:
See More
Product Features:
- The bodies of these expansion valves are machined from a single block of aluminum or brass metal.
- Each expansion valve has settings for tonnage and superheat based on the vehicle specifications.
- Each expansion valve is tested for function and leakage according to OEM specifications to ensure optimal performance of the air conditioning system.
- O-Rings necessary for installation are included.
- Precision machined ports
Carquest Premium – A/C Valve Core/Cap (Part No.T26777)
from
$20.99
Carquest A/C Accessories provide a comprehensive offering of premium quality fittings and tools to service all aspects of an a/c service from the most simple fitting replacement to complex diagnostics required for late model applications.
See More
Dorman – 2-Wire Pressure (Part No.85141)
from
$14.49
This HVAC switch connector is designed to match the appearance and function of the original hardware on specified applications. Made of quality materials, it is engineered for reliable performance and durability.
Product Features:
See More
Product Features:
- Direct replacement – this HVAC switch connector matches the appearance and function of the factory hardware on specified applications
- Ideal solution – this connector is a reliable replacement for an original part that is missing or has failed due to fatigue
- Durable construction – this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Popular 1978 Dodge B300 Air Conditioning Parts Categories
Most Popular AC Compressor Without Clutch for 1978 Dodge B300s
Enhance your 1978 Dodge B300 with this popular AC Compressor Without Clutch we have in stock, for $377.99.
Carquest Premium – New Chrysler C171 Compressor with Clutch (Part No.T58101)
from
$377.99
Manufactured Compressors are built in a ISO9001:2015 Certified facility to ensure consistent quality standards in the manufacturing process.
Product Features:
See More
Product Features:
- All compressors go through sophisticated testing and leak test processes
- Includes specific electrical connector to eliminate splicing
- For ease of installation this compressor includes all gaskets, O-rings or sealing washers needed to repair your car
- Validated for fit, form, and function to OE standards
- Manufactured Compressors meet or exceed OE specifications
- Manufactured Compressors are validated for the equivalent of 100,000 miles
- Manufactured Compressors come pre-charged with 3 ounces of PAG oil for R134a or R1234yf applications
- Manufactured Compressors are individually vacuum, pressure, and Helium Mass Spectrometer tested to ensure no leaks
- Manufactured Compressors come with the R12/R134A/1234yf required O-rings /sealing washers to install the compressor
Best-Selling 1978 Dodge B300 Accumulator and Receiver Drier
Upgrade your B300 with our best-selling Accumulator and Receiver Drier with a 1 Starts rating across 1 review.
Carquest Premium – A/C Filter Drier (Part No.T33554)
from
$28.99
Carquest Accumulators and Receiver Driers are designed to store, filter and dry the air conditioning refrigerant to provide proper performance and durability for the air conditioning system. They are manufactured to meet or exceed original equipment specifications.
Product Features:
See More
Product Features:
- All parts meet or exceed original equipment standards for moisture absorption, pressure and temperature resistance, air tightness, vibration resistance, corrosiveness, and pulse pressure.
- Desiccant is 100% tested and assembled in a controlled environment to ensure performance meets or exceeds original equipment standards.
- All accumulators and receiver driers are helium leak tested prior to packaging.
- O-Rings necessary for installation are included.
Top-Quality Expansion Valve and Orifice Tubes for 1978 Dodge B300s
Choose a high-quality OEM or aftermarket Expansion Valve and Orifice Tube for Dodge B300s and enjoy top-notch performance from $38.99.
Carquest Premium – A/C TXV O-Ring Expansion Valve (Part No.T38844)
from
$38.99
Carquest Expansion Valves are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each expansion valve is manufactured to original equipment specifications to perform its function even in the harshest climates. Each part is supplied with the necessary gaskets and o-rings for installation.
Product Features:
See More
Product Features:
- The bodies of these expansion valves are machined from a single block of aluminum or brass metal.
- Each expansion valve has settings for tonnage and superheat based on the vehicle specifications.
- Each expansion valve is tested for function and leakage according to OEM specifications to ensure optimal performance of the air conditioning system.
- O-Rings necessary for installation are included.
- Precision machined ports
KAI – A/C Expansion Valve (Part No.ACX010999)
from
$52.99
New Standard Replacement A/C Expansion Valve
Product Features:
See More
Product Features:
- Meets All Federal Motor Safety Standards
- No Drilling Needed For Installation
- No Modifications Needed For Installation
- Direct Fit Replacement For Your Vehicle
- Same Form Fit And Function As OE
- Check Out The Large Selection Of Parts Available For Your Vehicle
Our Top Pick for a 1978 Dodge B300 AC Caps and Valve Core Kit
Invest in a
durable AC Caps and Valve Core Kit for your 1978 Dodge, knowing you’re getting trusted brands and expert craftsmanship.
Carquest Premium – A/C Valve Core/Cap (Part No.T26777)
from
$20.99
Carquest A/C Accessories provide a comprehensive offering of premium quality fittings and tools to service all aspects of an a/c service from the most simple fitting replacement to complex diagnostics required for late model applications.
See More
Top-Rated AC Line O-Rings for 1978 Dodge B300s
Make a smart move for your 1978 Dodge B300 with products all priced from $0.99 to $20.99.
Factory Air – Cap & Valve A/C System Seal Kit (Part No.26777)
from
$20.99
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 Factory Air.
Product Features:
See More
Product Features:
- All the seals needed to complete the job
- Compatible with both R12 and R134a refrigerants
- SUV and rear air applications
- Application specific
- All the seals needed to complete the job
- Compatible with both R12 and R134a refrigerants
- SUV and rear air applications
- Application specific
Factory Air – Green Round O-Ring (sold by each) (Part No.24608)
from
$1.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
See More
Factory Air – Green Round O-Ring (sold by each) (Part No.24610)
from
$0.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
See More
Top-Rated Air Conditioning Part Brands For Your 1978 Dodge B300
When it comes to finding the perfect Air Conditioning Part for your 1978 Dodge B300, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 4 trusted brands. We carry the most popular Air Conditioning Part brands including Factory Air, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $20.99. Purchasing a Air Conditioning Part from us here at Advance Auto Parts is a smart move for both you and your 1978 Dodge B300, providing peace of mind with parts that meet or exceed OEM standards.
Popular Factory Air 1978 Dodge B300 Air Conditioning Parts
If you’re looking for a top-quality Air Conditioning Part for your 1978 Dodge B300, Advance Auto Parts has exactly what you need with our selection of Factory Air Air Conditioning Parts. We have 1 Factory Air Air Conditioning Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $20.99, you’ll find the perfect Air Conditioning Part for your needs and budget. Factory Air Air Conditioning Parts for the 1978 Dodge B300 come highly rated, with over 6 customer reviews and an impressive average rating of 4.4 stars. Choosing a Factory Air Air Conditioning Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
FAQs for 1978 Dodge B300 Air Conditioning Parts
What are the best-selling Air Conditioning Parts for 1978 Dodge B300s?
Out of 12 Air Conditioning Parts that fit 1978 Dodge B300s, the following parts are the top sellers:
- 5-Wire Style Relay (22148718) – $18.99
- Green Round O-Ring (sold by each) (18890169) – $1.99
- Green Round O-Ring (sold by each) (18890841) – $1.99
What’s the price range for 1978 Dodge B300 Air Conditioning Parts?
The prices of Air Conditioning Parts for the 1978 Dodge B300 range from $0.99 up to $377.99 for the most premium parts.
What is the average price of an Air Conditioning Part for a 1978 Dodge B300?
The average price for Air Conditioning Parts for the 1978 Dodge B300 is $21.55. Keep in mind the variety of part types within our Air Conditioning Part category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Air Conditioning Parts for other Dodge B300 model years?
What are the cheapest Air Conditioning Parts for my 1978 Dodge B300?
The cheapest 1978 Dodge B300 Air Conditioning Parts we carry are:
- Green Round O-Ring (sold by each) (18890254) – $0.99
- Green Round O-Ring (sold by each) (18890169) – $1.99
- Green Round O-Ring (sold by each) (18890841) – $1.99
- Compressor Discharge Port Gasket (sold by each) (18890501) – $2.99
- 2-Wire Pressure (22148703) – $14.49
Does Advance Auto Parts sell Air Conditioning Parts for any other 1978 Dodge models?
Yes. We stock Air Conditioning Parts for 21 other popular 1978 Dodge models. Some of the most popular are 1978 Charger Air Conditioning Parts, 1978 Challenger Air Conditioning Parts, 1978 Magnum Air Conditioning Parts, 1978 Ramcharger Air Conditioning Parts, and 1978 W150 Air Conditioning Parts.
What are the top-rated Air Conditioning Parts that fit the 1978 Dodge B300?
The one 1978 Dodge B300 Air Conditioning Part we have in stock is the Green Round O-Ring (sold by each). It costs $0.99.
What types of Air Conditioning Parts do you sell for my 1978 Dodge B300?
As of 11/2/25, these are some of the most in-demand types of Air Conditioning Parts for a 1978 Dodge B300:
Can I get help with 1978 Dodge B300 Air Conditioning Part orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Dodge Air Conditioning Parts and more.
What is your return policy for Dodge B300 Air Conditioning Parts?
Advance Auto Parts keeps returns simple. For new Dodge B300 Air Conditioning Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.