1978 Mercedes-Benz 300SD Cooling and Climate Controls

Essential 1978 Mercedes-Benz 300SD Cooling and Climate Controls

Dorman – Electrical Harness – 2-Wire GM A/C Clutch with Diode (Part No.85143)

Electrical Harness - 2-Wire GM A/C Clutch with Diode

from

$11.99
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:
  • 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
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Dorman – Help – Radiator Drain Cock Screw-In Type With Washer (Part No.61145)

Radiator Drain Cock Screw-In Type With Washer

from

$6.99
This radiator drain petcock is a direct replacement for the original equipment plug that may have deteriorated or corroded. Made of quality materials, this petcock is engineered to strict standards for durable use over time.

Product Features:
  • Direct replacement – this radiator drain petcock matches the fit and function of the original equipment part
  • Durable construction – this part is made of quality materials for a long service life
  • Saves money – offers original equipment quality at a competitive price
  • Quality assured – this petcock has undergone virtual testing to assure proper fit and function
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Carquest Premium – New Compressor with Clutch, Nippondenso 10PA17C (Part No.T58336)

New Compressor with Clutch, Nippondenso 10PA17C

from

$334.99
High quality OE replacement part with all components needed to complete the job

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
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Permatex – Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ (Part No.22071)

Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ

from

$6.99
Permatex Water Pump & Thermostat RTV Silicone Gasket Maker is a noncorrosive, sensor-safe RTV silicone gasket material formulated for water pumps and thermostat housings. Permatex Water Pump & Thermostat has the highest water-glycol resistance available in an RTV silicone.

Product Features:
  • Sensor-safe, noncorrosive RTV silicone gasket material
  • Formulated specifically for water pumps and thermostat housings
  • Highest water-glycol resistance available in RTV silicone
  • Superior adhesion and flexibility
  • Can be used as a gasket maker or dressing
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Permatex – Ultra Grey RTV Gasket Maker (9.5 oz.) (Part No.85084)

Ultra Grey RTV Gasket Maker (9.5 oz.)

from

$32.99
OEM specified. Designed specially for high-torque and high vibration applications, like those common in import engines, this premium RTV gasket maker exceeds manufacturers’ performance requirements. Sensor-safe, low odor, and non-corrosive. Maximum vibration resistance, with outstanding resistance to oils, cooling and shop fluids. Temperature range -65ºF to 500ºF (-54 Deg. C to 260 Deg. C) intermittent.

Product Features:
  • Designed specially for high-torque and high vibration applications
  • Maximum vibration resistance with outstanding resistance to oils, cooling and shop fluids
  • OEM specified
  • Low-odor, non-corrosive formula
  • Temperature Range: -65 Deg. F to 500 Deg. F (-54 Deg. C to 260 Deg. C)
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Dorman – 5-Wire Style Relay (Part No.85170)

5-Wire Style Relay

from

$15.99
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:
  • 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
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Factory Air – Harness Connector (Part No.37201)

Harness Connector

from

$17.49
OE style connectors; Molded plastic construction; Quality contacts ensure proper conductivity; Universal applications
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ACM – Air Conditioning Temperature Switch (Part No.R105511825ACM)

Air Conditioning Temperature Switch

from

$33.34
ACM is a supplier of Original Equipment quality climate control products. 2 spade terminals on short pigtail.
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Carquest Premium – Radiator Cap Tester Adapter (Part No.12552)

Radiator Cap Tester Adapter

from

$14.29
Tester adapter for the MT-300 cooling system pressure testers. Professional grade test equipment to ensure an automotive cooling system is operating at the correct pressure. Made from high quality materials to ensure durability. Designed to test automotive coolant caps.

Product Features:
  • Machined metal construction
  • Works with MT-300 pressure tester
  • Tests coolant caps
  • Professional quality
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Stant – SEAL THERMOSTAT (Part No.27271)

SEAL THERMOSTAT

from

$1.29
SEAL THERMOSTAT

Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T1075)

Engine Water Pump: New, Gasket/Seals Included

from

$48.49
Carquest Premium water pumps are 100% new, high-quality parts that meet or exceed original equipment (O.E.) specifications. All components, including the housing, hub, bearings, gaskets and seals are designed for long-lasting service life. These water pumps are supplied with the gaskets or seals necessary for installation. Our Carquest Premium water pumps undergo stringent testing to ensure superior performance that we stand behind with an industry-leading warranty.

Product Features:
  • 100% tested for reliable performance
  • Durable housing features precisely machined mounting surface for proper sealing and fitment
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • Included heavy-duty unitized bearings, pressed-on hubs and optimal impeller clearance for a long-lasting water pump
  • All gaskets or seals necessary for water pump are included
  • This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
  • This pump is driven by the timing chain; see vehicle manufacturer recommendation for replacement of timing components
  • This pump is driven by the timing belt; see vehicle manufacturer recommendation for replacement of timing components
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Driveworks – Ball Bearing (Part No.S-907257)

Ball Bearing

from

$20.79
Value-priced bearing meets all cataloged application requirements.

Product Features:
  • Brand may vary by location
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Carquest Premium – A/C Block Type Flange Expansion Valve (Part No.T38866)

A/C Block Type Flange Expansion Valve

from

$39.99
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:
  • 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.
  • O-Rings necessary for installation are included.
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Nissens – A/C Receiver Drier (Part No.R1040148407NSS)

A/C Receiver Drier

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$47.77
The Nissens A/C Receiver Drier is manufactured to exact OEM specifications for quality fit and performance.

Product Features:
  • OE-Equivalent and Direct fit Application.
  • Meets or exceeds the vehicle manufacturer specifications.
  • Utilizes factory style fittings and connectors.
  • Includes the required o-rings and associated hardware
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Permatex – Ultra Grey RTV Silicone Gasket Maker, 13 OZ (Part No.82195)

Ultra Grey RTV Silicone Gasket Maker, 13 OZ

from

$26.99
Permatex Ultra Grey is specified for high torque and high vibration applications. Ultra Grey offers a sensor-safe, low odor, non-corrosive formula and is OEM specified to fit dealership warranty requirements. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings.

Product Features:
  • High torque and rigidity
  • Sensor-safe, non-corrosive formula
  • OEM specified
  • Low-odor, non-corrosive formula
  • Ideal for closed spaced bolt patterns
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Factory Air – Sealing Washer Kit (Part No.24340)

Sealing Washer Kit

from

$9.49
Includes O-Ring; Compatible with R12 And R134A; High quality construction; Universal applications
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APA/URO – APA/URO Expansion Tank (Part No.G103016617APA)

APA/URO Expansion Tank

from

$42.41
The APA/URO expansion tank is made of the highest quality materials and is engineered to meet or exceed the OEM specifications for performance, fit and durability.

Product Features:
  • OE-Equivalent and Direct Fit for easy Installation.
  • OE style connections and fittings.
  • Made of highly durable materials.
  • Resistant to thermal wear and cracking.
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Factory Air – Green Round O-Ring (Part No.24610)

Green Round O-Ring

from

$0.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
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ACM – Auxiliary Fan Assembly (Part No.G500011754ACM)

Auxiliary Fan Assembly

from

$133.60
ACM is a supplier of Original Equipment quality climate control products.
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Factory Air – New Nippondenso 10P Clutch Assembly w/ Coil (Part No.47599)

New Nippondenso 10P Clutch Assembly w/ Coil

from

$242.99
High quality OE replacement part with all components needed to complete the job

Product Features:
  • All mounting hardware included
  • Every coil tested for proper ohms
  • Vehicle specific applications
  • Coated to prevent corrosion
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Carquest Standard – Reman GM A6 Compressor w/ Clutch (Part No.DW57096)

Reman GM A6 Compressor w/ Clutch

from

$321.99
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:
  • 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
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Behr – A/C Pressure Switch (Part No.R1054178181BEH)

A/C Pressure Switch

from

$22.52
Behr GmbH & Co. KG, Stuttgart, is a specialist for automotive air conditioning and engine cooling systems, the Behr Group is one of the world’s leading manufacturers and suppliers of Original Equipment cooling and air conditioning products for European passenger and commercial vehicles. 2 bar low pressure and 30 bar high pressure binary switch. This switch is designed to be compatible with R-12 and R134a refrigerants. Located on receiver-drier with 2 spade terminals. Used for compressor cut-out.
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Mahle – Thermostat (Part No.G400049781MAH)

Thermostat

from

$18.37
Intelligent control systems from MAHLE are used in millions of applications worldwide to provide needs-based precision temperature control. Simple, effective, and tried and tested millions of times over: thermostat inserts from MAHLE provide meticulous regulation of coolant circuits around the world up to approximately 20 m3/h, and ensure ideal operating temperatures in light vehicles, trucks, stationary engines, and also agricultural and construction machinery. Wax elements are at the heart of all MAHLE thermostats and thermostat inserts. These maintenance-free, durable elements have proved their worth in millions of applications. MAHLE, Manufactures a wide range of variants with actuating forces of between 30 N and 2,500 N, small or large displacements, and for a large number of regulation ranges within a temperature span of -20C to +130C.

Product Features:
  • OE quality and design
  • Maintenance-free, durable elements
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Carquest Premium – Radiator Cap: 16 PSI (Part No.10330)

Radiator Cap: 16 PSI

from

$13.49
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Product Features:
  • Safety lever to vent coolant pressure before removal
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
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APA/URO Parts – Engine Cooling Fan Clutch (Part No.G501011690APA)

Engine Cooling Fan Clutch

from

$115.10
The APA/URO Engine Cooling Fan Clutch is an ideal high quality aftermarket replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Premium aftermarket replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications
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Permatex – The Right Stuff Grey Instant Gasket Maker, 147ml Cartridge (Part No.34311)

The Right Stuff Grey Instant Gasket Maker, 147ml Cartridge

from

$28.49
Specifically designed to perform under higher torque loads associated with engines having closely spaced bolt patterns (typically import vehicles). This product is blowout resistant, allowing leakproof gaskets to be made and put into service in just one minute. Sensor-safe, The Right Stuff GREY seals instantly, forming a reliable, long lasting elastomeric rubber gasket that outperforms pre-molded gaskets. Specified by major import OEMs, this material is resistant to powertrain fluids (oil, coolant and ATF) and operates in environments to 450°F (232°C) continuous; 500°F (260°C) intermittent.

Product Features:
  • Ideal for rigid cast aluminum parts
  • Meets OEM Specifications
  • Sensor safe & non-corrosive
  • Performs under higher torque loads associated with engines having closely spaced bolt patterns (typical of import vehicles)
  • Blowout resistant, allowing leakproof gaskets to be made in just one minute
  • Seals instantly, forming a reliable, long lasting elastomeric rubber gasket
  • Superior resistance to powertrain fluids including engine oil, transmission fluid, gear lube and coolants
  • Temperature range -60°C to 260°C (-75°F to 500°F) intermittent
  • Applications: Automotive, industrial and marine gaskets, valve covers, gearbox covers, pumps, compressors, oil pans, thermostat housings, water pumps, etc.
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Factory Air – Green Round O-Ring (Part No.24650)

Green Round O-Ring

from

$1.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
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1978 Mercedes-Benz 300SD Cooling and Climate Controls

You count on your 1978 Mercedes-Benz 300SD to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Cooling and Climate Controls. With 54 Cooling and Climate Controls ranging in price from $0.99 to $478.99, you’re sure to find everything you need for your 1978 Mercedes-Benz 300SD.

Brands matter. If you want to shop a specific Cooling and Climate Controls brand, we stock 18 different brands like Permatex, Carquest Premium, and Factory Air. 1978 Mercedes-Benz 300SD Cooling and Climate Controls start as low as $0.99!

One of the best ways to find top quality OEM or aftermarket Cooling and Climate Controls is by asking professionals. Short of that, you can shop with confidence thanks to our 422 extensive product reviews on 1978 Mercedes-Benz 300SD Cooling and Climate Controls. Some of the top-rated Cooling and Climate Controls products we carry are Cap & Valve A/C System Seal Kit with 4.2 stars and Ball Bearing with 2.3 stars.

Did we mention you can order your Cooling and Climate Controls from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Cooling and Climate Controls inventory for your 1978 Mercedes-Benz 300SD below to get started!

Top-Rated Cooling and Climate Controls Brands For Your 1978 Mercedes-Benz 300SD

Trusted Cooling and Climate Controls OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 1978 Mercedes-Benz 300SD running right for years to come. In our inventory you’ll find brands like Permatex, Carquest Premium, Factory Air, and even more.

Popular Carquest Standard Cooling and Climate Controls

You’ll find popular Carquest Standard brand products across Air Conditioning Parts. All are waiting to get your 1978 Mercedes-Benz 300SD back on the road. Some of the top-rated Carquest Standard products in these categories are:
Reman GM A6 Compressor w/ Clutch
from $349.99
(1)
Reman GM A6 Compressor w/ Clutch
AC Compressor Without Clutch
Reman GM R4 Heavy Compressor w/ Clutch
from $219.99
(2)
Reman GM R4 Heavy Compressor w/ Clutch
AC Compressor Without Clutch

Top-Rated Permatex Cooling and Climate Controls


If Permatex are what you’re looking for, our inventory holds plenty. We stock Permatex brand Cooling and Climate Controls for your 1978 Mercedes-Benz 300SD, and some of our most reviewed Permatex parts include:
Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ
from $6.99
(288)
Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ
Water Pump Gaskets
Ultra Grey RTV Silicone Gasket Maker, 0.5 OZ
from $6.99
(9)
Ultra Grey RTV Silicone Gasket Maker, 0.5 OZ
Water Pump Gaskets
Ultra Grey RTV Silicone Gasket Maker, 13 OZ
from $26.99
(7)
Ultra Grey RTV Silicone Gasket Maker, 13 OZ
Engine Water Pump Outlet Pipe Gaskets

FAQs for 1978 Mercedes-Benz 300SD Cooling and Climate Controls

What are the most purchased Cooling and Climate Controls for the 1978 Mercedes-Benz 300SD?

Out of 54 Cooling and Climate Controls for the 1978 Mercedes-Benz 300SD, the most popular in our inventory are:
Radiator Cap: 13 PSI
from $9.79
(51)
Radiator Cap: 13 PSI
Radiator Caps
Radiator Cap: 13 PSI
from $10.49
(48)
Radiator Cap: 13 PSI
Radiator Caps
The Right Stuff: 1 Minute Gasket Maker: Grey, 3 OZ
from $19.99
(2)
The Right Stuff: 1 Minute Gasket Maker: Grey, 3 OZ
Water Pump Housing Gaskets

What are the top-rated 1978 Mercedes-Benz 300SD Cooling and Climate Controls?

Top-rated Cooling and Climate Controls for your 1978 Mercedes-Benz 300SD based on customer reviews/ratings are:
Cap & Valve A/C System Seal Kit
from $16.99
(6)
Cap & Valve A/C System Seal Kit
“Good product and price.”
Ball Bearing
from $20.79
(4)
Ball Bearing
“Great replacement bearing”
Standard Thermostat: 180 Degrees
from $22.99
(2)
Standard Thermostat: 180 Degrees
“Perfect fit, this is the correct spec. temperature for my 240D. I think the old one was a higher temp. put in by the previous owner. The car is runnin”