1977 Mercedes-Benz 450SL Air Conditioning Parts
Keep Your 1977 Mercedes-Benz 450SL 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 1977 Mercedes-Benz 450SL looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including AC Harness Connectors, AC Compressor Without Clutch, and AC Line O-Rings. 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 Carquest and Factory Air. For example, Carquest Air Conditioning Parts start at just $371.99 with an average 4.4 star rating. Factory Air offer similar pricing and quality, backed by strong customer feedback. With over 7 reviews and a solid 5 star average, you can shop with confidence knowing other Mercedes-Benz 450SL owners approve.
Competitive Prices and Extensive Inventory
The average price for a 1977 Mercedes-Benz 450SL Air Conditioning Part at Advance Auto Parts is around $96.52, with a range that starts at $0.99 and goes up to $493.99. With 10 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 $0.99 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 Engine Cooling Parts. At Advance Auto Parts, we’re here to help you keep your 1977 Mercedes-Benz 450SL in peak condition, inside and out.
Find Your Specific 1977 Mercedes-Benz 450SL Air Conditioning Parts
Looking for the perfect Air Conditioning Part for your 1977 Mercedes-Benz 450SL? 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 Mercedes-Benz 450SL. Whether you’re driving a 1977 model or another popular model year like
1973,
1974,
1975,
1976,
1978,
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 1977 Mercedes-Benz 450SL Air Conditioning Parts
Carquest Standard – Reman GM A6 Compressor w/ Clutch (Part No.DW57098)
from
$371.99
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 Carquest.
Product Features:
See More
Product Features:
- Built in a TS16949 certified manufacturing environment to ensure consistent quality that meets or exceeds OE specifications for fit, form, function and durability
- All remanufactured compressors are built using the latest compressor technology available today and using strict remanufacturing processes
- All units have new seals, O-rings, gaskets and clutch bearings
- Tested for noise, vibration, durability, vacuum decay and pressure decay to ensure no leaks and longer life
- Remanufactured compressors are 100 percent tested to ensure compressor function and noise level meets or exceeds OE specifications
- Remanufactured compressors come pre-charged with 3 ounces of PAG oil for R134a or R1234yf applications
- Remanufactured compressors are individually vacuum and pressure tested to ensure no leaks
- Remanufactured compressors come with the R12/R134A/1234yf required O-rings /sealing washers to install the compressor
- Remanufactured Compressors are built in a ISO9001:2015 Certified facility to ensure consistent quality standards in the Re-manufacturing process
Dorman – Electrical Harness – 2-Wire GM A/C Clutch with Diode (Part No.85143)
from
$12.49
This HVAC clutch coil 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:
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Product Features:
- Direct replacement – this HVAC clutch coil 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
Carquest Premium – A/C Harness Connector (Part No.T37201)
from
$20.79
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.
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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 – 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.24615)
from
$1.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
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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 GM A6 Compressor with Clutch (Part No.T58098)
from
$493.99
New Compressors are built in a ISO9001:2015 Certified facility. These facilities go through several audits to ensure 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
- Built in a TS16949 certified manufacturing environment to ensure consistent quality that meets or exceeds OE specifications for fit, form, function, and durability
- New Compressors meet or exceed OE specifications
- New Compressors are validated for the equivalent of 100,000 miles
- New Compressors come pre-charged with 3 ounces of PAG oil for R134a or R1234yf applications
- New Compressors come with direct fit connectors for ease of installation and to help eliminate splicing
- New Compressors come with the R12/R134A/1234yf required O-rings /sealing washers to install the compressor
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
Popular 1977 Mercedes-Benz 450SL Air Conditioning Parts Categories
Most Popular AC Harness Connector for 1977 Mercedes-Benz 450SLs
Enhance your 1977 Mercedes-Benz 450SL with this popular AC Harness Connector we have in stock, for $20.79.
Carquest Premium – A/C Harness Connector (Part No.T37201)
from
$20.79
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
Best-Selling 1977 Mercedes-Benz 450SL AC Compressor Without Clutch
Upgrade your 450SL with our best-selling AC Compressor Without Clutch with a 5 Starts rating across 1 review.
Carquest Standard – Reman GM A6 Compressor w/ Clutch (Part No.DW57098)
from
$371.99
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 Carquest.
Product Features:
See More
Product Features:
- Built in a TS16949 certified manufacturing environment to ensure consistent quality that meets or exceeds OE specifications for fit, form, function and durability
- All remanufactured compressors are built using the latest compressor technology available today and using strict remanufacturing processes
- All units have new seals, O-rings, gaskets and clutch bearings
- Tested for noise, vibration, durability, vacuum decay and pressure decay to ensure no leaks and longer life
- Remanufactured compressors are 100 percent tested to ensure compressor function and noise level meets or exceeds OE specifications
- Remanufactured compressors come pre-charged with 3 ounces of PAG oil for R134a or R1234yf applications
- Remanufactured compressors are individually vacuum and pressure tested to ensure no leaks
- Remanufactured compressors come with the R12/R134A/1234yf required O-rings /sealing washers to install the compressor
- Remanufactured Compressors are built in a ISO9001:2015 Certified facility to ensure consistent quality standards in the Re-manufacturing process
Top-Quality AC Line O-Rings for 1977 Mercedes-Benz 450SLs
Choose a high-quality OEM or aftermarket AC Line O-Ring for Mercedes-Benz 450SLs and enjoy top-notch performance from $0.99.
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.24610)
from
$0.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
See More
Our Top Pick for a 1977 Mercedes-Benz 450SL AC Compressor With Clutch
Invest in a
durable AC Compressor With Clutch for your 1977 Mercedes-Benz, knowing you’re getting trusted brands and expert craftsmanship.
Carquest Premium – New GM A6 Compressor with Clutch (Part No.T58098)
from
$493.99
New Compressors are built in a ISO9001:2015 Certified facility. These facilities go through several audits to ensure 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
- Built in a TS16949 certified manufacturing environment to ensure consistent quality that meets or exceeds OE specifications for fit, form, function, and durability
- New Compressors meet or exceed OE specifications
- New Compressors are validated for the equivalent of 100,000 miles
- New Compressors come pre-charged with 3 ounces of PAG oil for R134a or R1234yf applications
- New Compressors come with direct fit connectors for ease of installation and to help eliminate splicing
- New Compressors come with the R12/R134A/1234yf required O-rings /sealing washers to install the compressor
Our AC Caps and Valve Core Kits for 1977 Mercedes-Benz 450SLs
Make a smart move for your 1977 Mercedes-Benz 450SL with our AC Caps and Valve Core Kit for $20.99.
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 Air Conditioning Part Brands For Your 1977 Mercedes-Benz 450SL
When it comes to finding the perfect Air Conditioning Part for your 1977 Mercedes-Benz 450SL, 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 Carquest and 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 1977 Mercedes-Benz 450SL, providing peace of mind with parts that meet or exceed OEM standards.
Popular Carquest 1977 Mercedes-Benz 450SL Air Conditioning Parts
If you’re looking for a top-quality Air Conditioning Part for your 1977 Mercedes-Benz 450SL, Advance Auto Parts has exactly what you need with our selection of Carquest Air Conditioning Parts. We have 1 Carquest Air Conditioning Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $371.99, you’ll find the perfect Air Conditioning Part for your needs and budget. Carquest Air Conditioning Parts for the 1977 Mercedes-Benz 450SL come highly rated, with over 1 customer reviews and an impressive average rating of 4.4 stars. Choosing a Carquest Air Conditioning Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Top-Quality Factory Air 1977 Mercedes-Benz 450SL Air Conditioning Parts
For those in search of a high-quality Air Conditioning Part for their 1977 Mercedes-Benz 450SL, Advance Auto Parts offers a great selection of Factory Air Air Conditioning Parts. With 1 Factory Air Air Conditioning Parts in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Air Conditioning Parts start at just $20.99, giving you a range of options to suit your budget. Backed by over 6 customer ratings and an average rating of 4.4 stars, Factory Air Air Conditioning Parts provide both reliability and excellent performance. Choosing a Factory Air Air Conditioning Part from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.
FAQs for 1977 Mercedes-Benz 450SL Air Conditioning Parts
What are the best-selling Air Conditioning Parts for 1977 Mercedes-Benz 450SLs?
Out of 10 Air Conditioning Parts that fit 1977 Mercedes-Benz 450SLs, 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) (18890254) – $0.99
What’s the price range for 1977 Mercedes-Benz 450SL Air Conditioning Parts?
The prices of Air Conditioning Parts for the 1977 Mercedes-Benz 450SL range from $0.99 up to $493.99 for the most premium parts.
What is the average price of an Air Conditioning Part for a 1977 Mercedes-Benz 450SL?
The average price for Air Conditioning Parts for the 1977 Mercedes-Benz 450SL is $96.52. 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 Mercedes-Benz 450SL model years?
What are the cheapest Air Conditioning Parts for my 1977 Mercedes-Benz 450SL?
The cheapest 1977 Mercedes-Benz 450SL 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) (18890821) – $1.99
- Electrical Harness – 2-Wire GM A/C Clutch with Diode (22148687) – $12.49
- 5-Wire Style Relay (22148718) – $18.99
Does Advance Auto Parts sell Air Conditioning Parts for any other 1977 Mercedes-Benz models?
Yes. We stock Air Conditioning Parts for 6 other popular 1977 Mercedes-Benz models. Some of the most popular are 1977 230 Air Conditioning Parts, 1977 280SE Air Conditioning Parts, 1977 450SEL Air Conditioning Parts, 1977 300D Air Conditioning Parts, and 1977 280E Air Conditioning Parts.
What are the top-rated Air Conditioning Parts that fit the 1977 Mercedes-Benz 450SL?
The one 1977 Mercedes-Benz 450SL 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 1977 Mercedes-Benz 450SL?
As of 11/2/25, these are some of the most in-demand types of Air Conditioning Parts for a 1977 Mercedes-Benz 450SL:
Can I get help with 1977 Mercedes-Benz 450SL 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 Mercedes-Benz Air Conditioning Parts and more.
What is your return policy for Mercedes-Benz 450SL Air Conditioning Parts?
Advance Auto Parts keeps returns simple. For new Mercedes-Benz 450SL Air Conditioning Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.