1978 Mercedes-Benz 300SD Cooling and Climate Controls
Find Your Specific 1978 Mercedes-Benz 300SD Cooling and Climate Controls
Below you will find various in-demand Mercedes-Benz Cooling and Climate Controls, components and accessories for your 1978 300SD. Advance Auto Parts has popular 300SD parts like Air Conditioning Parts Engine Cooling Parts and more. You’ll also find aftermarket and OEM Cooling and Climate Controls for other 300SD model years including
1979,
1980,
1981,
1982,
1983,
1984,
1985,
1992,
1993 and more. Select a category of 1978 Mercedes-Benz 300SD Cooling and Climate Controls below and start saving instantly.
Popular 1978 Mercedes-Benz 300SD Cooling and Climate Controls Categories
Essential Cooling and Climate Controls for 1978 Mercedes-Benz 300SDs
Carquest Premium – A/C Block Type Flange Expansion Valve (Part No.T39210)
from
$29.99
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:
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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.
Carquest Standard – Reman GM A6 Compressor w/ Clutch (Part No.DW57096)
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:
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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
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
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Carquest Premium – A/C New, with Clutch, with A6 Compressor (Part No.T58096)
from
$408.99
Carquest New Compressors are designed, manufactured and tested to meet or exceed strict original equipment specifications for superior quality and performance. Each new compressor is tested to provide durable life to the vehicle’s air conditioning system. All new compressor components are assembled using state of the art equipment and techniques to ensure smooth operation. Each part is equipped with a clutch and connector that matches the original equipment part and provides an exact replacement to your vehicle’s part. All compressors are supplied with the necessary gaskets and o-rings for installation.
Product Features:
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Product Features:
- Each new compressor design undergoes rigorous life cycle testing at high RPMs and pressures to ensure that they can withstand years in the harshest conditions.
- New compressors are designed with utmost precision using 3D coordinate measuring machines to ensure a perfect fit.
- The production process contains automated controls at every stage that alerts and halts production in case of an error, assuring that the finished product will always be flawless.
- All new compressors must pass a helium leak test and pump up function test prior to packaging.
- O-Rings and gaskets necessary for installation are included.
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
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Carquest Premium – Radiator Cap Tester Adapter (Part No.12552)
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:
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Product Features:
- Machined metal construction
- Works with MT-300 pressure tester
- Tests coolant caps
- Professional quality
Dorman – 5-Wire Style Relay (Part No.85170)
from
$17.99
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:
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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
APA/URO – APA/URO Expansion Tank (Part No.G103016617APA)
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:
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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.
Carquest Premium – A/C Harness Connector (Part No.T37201)
from
$16.79
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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Calorstat – Thermostat (Part No.G400021351CAL)
from
$27.93
CALORSTAT thermostatic components (bellows thermostats for water temperature regulation), followed by the use of a different technology based on the wax expansion. CALORSTAT by Vernet has produced thermostatic elements for more than 50 years. A vast amount of experience and continuous development has enabled the Company to remain the world leader in this field. Throughout the world, Vernet is regarded as a valued partner by manufacturers, large and small, in the Sanitary, Heating and Automotive industry.
Product Features:
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Product Features:
- Comfort enhancement by a faster cabine warming
- CO2 emissions and fuel consumption reduction
- Thermostat opening driven by the ECU (electrical thermostat)
- An adaptation of the control strategies to the vehicle use (electrical thermostat)
Dorman – Electrical Harness – 2-Wire GM A/C Clutch with Diode (Part No.85143)
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:
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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
Dorman – Engine Oil Drain Plug Gasket (Part No.A6120831514DOR)
from
$6.39
Dorman’s Engine Oil Drain Plug Gaskets are conveniently available in packs of varying quantities. Many styles are offered, including Copper, Aluminum, Nylon, Metal/Rubber, Inset, Fiber and Crush gaskets. Replacement is recommended at every oil change. Oil filter caps are available separately.
Product Features:
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Product Features:
- Direct replacement gaskets and some universal gaskets available. Proper fit with the drain plug ensures a tight seal.
- Gaskets are also included with many of Dorman’s Engine Oil Drain Plugs and Pans
- Made to specific sizes and standards to ensure a proper fit
- Designed and constructed to strict engineering quality standards
Santech – A/C Pressure Switch (Part No.R1054178181SII)
from
$20.70
A/C Pressure Switch
CRP – Coolant Sensor O-Rin (Part No.G105112427CRP)
from
$3.46
Coolant Sensor O-Rin
Carquest Premium – Radiator Cap: 13 PSI (Part No.10229)
from
$9.79
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:
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Product Features:
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
National – Bearings (Part No.907257)
from
$48.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.
Product Features:
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Product Features:
- Premium bearing design matches OEM specifications
- Precision manufactured using premium-grade steel for outstanding durability and performance
- Controlled heat treating process for lasting performance and extended bearing life
- Industry leading coverage
- Professional technicians know they can depend on National
Driveworks – Ball Bearing (Part No.S-907257)
from
$22.29
Value-priced bearing meets all cataloged application requirements.
Product Features:
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Product Features:
- Brand may vary by location
MTC – MTC, Auxiliary Water Pump, NLA 1.19 (Part No.G305011908MTC)
from
$161.78
Built to meet the latest OE manufacturer-specified designs, MTC Auxiliary Water Pumps are the best way to make sure you have the proper heat protection for the engine in your vehicle. Eliminating the mechanical commutation system leaves the durability of the rotor bearings as practically the only limiting factor for service life. In addition to that, the lower number of moving parts results in significantly reduced noise.
Product Features:
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Product Features:
- OE Quality, reliability and service life
- Leak-proof sealing of the drive
- Fuel savings and reduced emissions
- Cooling even without operation of the engine
- CO²-reduction by optimized efficiency, speed control and reduced weight
- Coverage of a wide hydraulic performance range
- Reduced noise level
Behr – Radiator Drain Plug (Part No.G106034117BEH)
from
$8.14
Radiator Drain Plug
Geba – Water Pump (Part No.G3000948542GEB)
from
$65.12
The GEBA Water Pump contains no remanufactured components and is manufactured to ensure high efficiency and optimal cooling under all conditions. Geba maintenance free Bearings with ball and roller spindle bearings are designed for the highest axial and radial stresses. Up to Date unitized sealing technology ensure optimal leak tightness and longevity. All housings are examined before the assembly. This procedure guarantees high reliability and life span of GEBA water pumps.
Product Features:
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Product Features:
- OE-Equivalent and direct fit application.
- 100% new with no remanufactured parts.
- High quality cast aluminum.
- Advanced bearing design for high axial and radial stresses.
- Unitized sealing technology that ensures optimal leak tightness and longevity.
- Optimum cooling performance and longevity.
Behr – A/C Receiver Drier (Part No.R104025342BEH)
from
$60.09
A/C Receiver Drier
Metrix – Receiver Drier (Part No.R104054391MTX)
from
$46.92
METRIX receiver driers are manufactured to OE specifications and provide durable, efficient performance. The OE engineered internal components provide enhanced separation of liquid and vapor, along with a desiccant filter that effectively controls moisture and helps protect the entire A/C system against corrosion. METRIX receiver driers features a lightweight aluminum assembly and provides an exact fit, just as an OE-quality part should.
Product Features:
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Product Features:
- OE-Quality – Exact Fit
- Utilizes factory style fittings and connectors
- Compatible with both R12 and R134A refrigerant
- Manufactured using the highest quality components
Flex A Lite – Trimline Straight Blade Electric Fan (Part No.116)
from
$119.99
Trimline Straight Blade Electric Fan
Flex A Lite – Black Magic Electric Fan (Part No.160)
from
$347.99
Black Magic Electric Fan
Santech – A/C Pressure Switch (Part No.R1054768236SII)
from
$90.92
A/C Pressure Switch
ACM – A/C Pressure Switch (Part No.R1054768236ACM)
from
$71.88
A/C Pressure Switch
APA/URO Parts – Engine Cooling Fan Clutch (Part No.G501011690APA)
from
$156.29
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:
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Product Features:
- Premium aftermarket replacement
- Provides performance and dependability
- Manufactured to meet OE specifications
Behr – Hella Service Visco® Engine Cooling Fan clutch (Part No.G501081391BEH)
from
$292.50
The Visco® clutch has the task of making the frictional connection to the fan wheel depending on the temperature, and influencing its speed. The drive torque is transferred by means of wear-free viscous friction to the fan wheel, the continuously variable speed of which is set on the basis of the operating conditions. In the case of the electrically-driven Visco® clutch, control takes place directly via sensors. Requirement-based cooling optimizes the coolant temperature, engine noise and fuel consumption.
Product Features:
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Product Features:
- Out of box, drop in replacements
- Factory mounts for easy install
- Exact fit
- Reduced labor time
- Higher customer satisfaction
Upgrade your 1978 Mercedes-Benz 300SD with Top-Quality Cooling and Climate Controls
When it comes to maintaining or upgrading your 1978 Mercedes-Benz 300SD, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Mercedes-Benz or enhancing its overall performance, Cooling and Climate Controls are key to keeping your 300SD functioning at its best. At Advance Auto Parts, we offer a wide selection of 44 Cooling and Climate Controls for the 1978 Mercedes-Benz 300SD, designed to meet your needs without breaking the bank.
From
Air Conditioning Part
replacements to
Engine Cooling 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 Cooling and Climate Controls for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Cooling and Climate Controls for your 1978 Mercedes-Benz 300SD at great prices.
Our Cooling and Climate Controls inventory for this model
ranges from just $0.99 to $540.97, with
an average price of $92.88.
Our 44 Cooling and Climate Controls in stock come from 21 trusted brands, so you’re sure to find the right part for your 1978 Mercedes-Benz 300SD without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1978 Mercedes-Benz 300SD, we stock popular OEM and aftermarket Cooling and Climate Controls from top names
like Carquest, Carquest Premium, Factory Air, and more.
Carquest Cooling and Climate Controls
start at just $228.99 and boast an impressive 4.4 stars average rating from customers.
Carquest Premium and Factory Air also bring quality to the table, with Cooling and Climate Controls available starting at $9.79, and at an average 4.4 stars rating.
With 114 customer reviews and counting, our 1978 Mercedes-Benz 300SD Cooling and Climate Controls 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 Cooling and Climate Control upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 1978 Mercedes-Benz 300SD is always ready to roll. We’re committed to providing you with everything you need to keep your 300SD in top shape, all in one place.
Start shopping confidently below for your 1978 Mercedes-Benz 300SD!
Best-Selling Air Conditioning Parts for 1978 Mercedes-Benz 300SDs
Enhance the driving experience in your Mercedes-Benz with 22 quality Air Conditioning Part components, starting at $0.99.
Carquest Standard – Reman GM A6 Compressor w/ Clutch (Part No.DW57098)
from
$334.99
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
Carquest Standard – Reman GM R4 Heavy Compressor w/ Clutch (Part No.DW57228)
from
$228.99
Carquest Standard compressors offer reliable, long-lasting performance for a leak-free, dependable repair.
Product Features:
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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
Factory Air – Cap & Valve A/C System Seal Kit (Part No.26777)
from
$16.99
High quality OE replacement part with all components needed to complete the job
Product Features:
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Product Features:
- All the seals needed to complete the job
- Compatible with both R12 and R134a refrigerants
- SUV and rear air applications
- Application specific
Driveworks – Ball Bearing (Part No.S-907257)
from
$22.29
Value-priced bearing meets all cataloged application requirements.
Product Features:
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Product Features:
- Brand may vary by location
Dorman – 5-Wire Style Relay (Part No.85170)
from
$17.99
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
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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 – 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
See More
Carquest Premium – New Compressor with Clutch, GM R4 Heavy (Part No.T58228)
from
$315.99
High quality OE replacement part with all components needed to complete the job
Product Features:
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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
- Double lip shaft seal to reduce refrigerant leakage over time requiring less maintenance
Behr – A/C Pressure Switch (Part No.R1054178181BEH)
from
$35.56
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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Carquest Premium – New Compressor with Clutch, GM A6 (Part No.T58098)
from
$443.99
High quality OE replacement part with all components needed to complete the job
Product Features:
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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
Dorman – Electrical Harness – 2-Wire GM A/C Clutch with Diode (Part No.85143)
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:
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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
National – Bearings (Part No.907257)
from
$48.99
National Oil Seals & Bearings offer a full line of premium oil seals and bearings.
Product Features:
See More
Product Features:
- Premium bearing design matches OEM specifications
- Precision manufactured using premium-grade steel for outstanding durability and performance
- Controlled heat treating process for lasting performance and extended bearing life
- Industry leading coverage
- Professional technicians know they can depend on National
Carquest Premium – A/C Filter Drier (Part No.T33399)
from
$26.99
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:
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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 Harness Connector (Part No.T37201)
from
$16.79
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
Behr – A/C Compressor (Part No.R1000669963BEH)
from
$540.97
A/C Compressor
Santech – A/C Compressor (Part No.R1000601666SII)
from
$345.92
A/C Compressor
Carquest Premium – New GM Frigidaire/Harrison A6 Radial Clutch Assembly w/ Coil (Part No.47284)
from
$136.99
Product Features:
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- All mounting hardware included
- Every coil tested for proper ohms
- Vehicle specific applications
- Coated to prevent corrosion
Behr – A/C Receiver Drier (Part No.R104025342BEH)
from
$60.09
A/C Receiver Drier
Autopart International Inc – A/C Expansion Valve (Part No.R10453349376API)
from
$41.55
A/C Expansion Valve
ACM – Air Conditioning Temperature Switch (Part No.R105511825ACM)
from
$37.81
ACM is a supplier of Original Equipment quality climate control products. 2 spade terminals on short pigtail.
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Santech – A/C Pressure Switch (Part No.R1054178181SII)
from
$20.70
A/C Pressure Switch
Most Popular 1978 Mercedes-Benz 300SD Engine Cooling Parts
Customize your Mercedes-Benz with 22 Engine Cooling Parts products
like Thermostats,
Water Pumps, and
Radiator Caps, all
priced under $347.99.
Carquest Premium – Radiator Cap: 13 PSI (Part No.10329)
from
$10.49
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:
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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
Carquest Premium – Radiator Cap: 13 PSI (Part No.10229)
from
$9.79
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:
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Product Features:
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13588)
from
$22.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Dorman – Engine Oil Drain Plug Gasket (Part No.A6120831514DOR)
from
$6.39
Dorman’s Engine Oil Drain Plug Gaskets are conveniently available in packs of varying quantities. Many styles are offered, including Copper, Aluminum, Nylon, Metal/Rubber, Inset, Fiber and Crush gaskets. Replacement is recommended at every oil change. Oil filter caps are available separately.
Product Features:
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Product Features:
- Direct replacement gaskets and some universal gaskets available. Proper fit with the drain plug ensures a tight seal.
- Gaskets are also included with many of Dorman’s Engine Oil Drain Plugs and Pans
- Made to specific sizes and standards to ensure a proper fit
- Designed and constructed to strict engineering quality standards
Carquest Premium – Radiator Cap Tester Adapter (Part No.12552)
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:
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Product Features:
- Machined metal construction
- Works with MT-300 pressure tester
- Tests coolant caps
- Professional quality
Mahle – Engine Coolant Thermostat (Part No.G400021351MAH)
from
$30.85
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:
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Product Features:
- OE quality and design
- Maintenance-free, durable elements
Mr. Gasket – Thermocap Radiator Cap (Part No.2470R)
from
$48.09
The fastest, easiest way to know exactly when it’s safe to open your radiator cap. ThermoCap, with its built-in calibrated thermometer, indicates the coolant temperature.
Product Features:
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Product Features:
- Indicates coolant temperature
- Helps prevent coolant injuries
- Fahrenheit and centigrade readings
- Color-coded temperature ranges
- Integrated coolant reclamation valve
- Improves under-hood appearance
- Chromed crown with a colored trim ring
Beck/Arnley – Thermostat (Part No.143-0703)
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$32.49
Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.
Product Features:
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Product Features:
- Matches OE form, fit and function
- Features a standard jiggle valve where required by OE and has a long stroke for maximum cooling
- Constructed with premium materials for durability
- Be sure to use the proper coolant to maximize cooling system components. See Beck/Arnley catalog for the coolant for this application.
- Application specific for this vehicle
Beck/Arnley – Thermostat (Part No.143-0664)
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$35.99
Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.
Product Features:
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Product Features:
- Matches OE form, fit and function
- Features a standard jiggle valve where required by OE and has a long stroke for maximum cooling
- Constructed with premium materials for durability
- Be sure to use the proper coolant to maximize cooling system components. See Beck/Arnley catalog for the coolant for this application.
- Application specific for this vehicle
APA/URO Parts – Engine Cooling Fan Clutch (Part No.G501011690APA)
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$156.29
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:
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Product Features:
- Premium aftermarket replacement
- Provides performance and dependability
- Manufactured to meet OE specifications
Rein – Radiator Cap (Part No.G101030351RIN)
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$16.62
Radiator Cap
Flex A Lite – Black Magic Electric Fan (Part No.160)
from
$347.99
Black Magic Electric Fan
MTC – MTC, Auxiliary Water Pump, NLA 1.19 (Part No.G305011908MTC)
from
$161.78
Built to meet the latest OE manufacturer-specified designs, MTC Auxiliary Water Pumps are the best way to make sure you have the proper heat protection for the engine in your vehicle. Eliminating the mechanical commutation system leaves the durability of the rotor bearings as practically the only limiting factor for service life. In addition to that, the lower number of moving parts results in significantly reduced noise.
Product Features:
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Product Features:
- OE Quality, reliability and service life
- Leak-proof sealing of the drive
- Fuel savings and reduced emissions
- Cooling even without operation of the engine
- CO²-reduction by optimized efficiency, speed control and reduced weight
- Coverage of a wide hydraulic performance range
- Reduced noise level
Autopart International Inc – Fan Clutch (Part No.G50101939375API)
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$157.54
Fan Clutch
Flex A Lite – Trimline Straight Blade Electric Fan (Part No.116)
from
$119.99
Trimline Straight Blade Electric Fan
Geba – Water Pump (Part No.G3000948542GEB)
from
$65.12
The GEBA Water Pump contains no remanufactured components and is manufactured to ensure high efficiency and optimal cooling under all conditions. Geba maintenance free Bearings with ball and roller spindle bearings are designed for the highest axial and radial stresses. Up to Date unitized sealing technology ensure optimal leak tightness and longevity. All housings are examined before the assembly. This procedure guarantees high reliability and life span of GEBA water pumps.
Product Features:
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Product Features:
- OE-Equivalent and direct fit application.
- 100% new with no remanufactured parts.
- High quality cast aluminum.
- Advanced bearing design for high axial and radial stresses.
- Unitized sealing technology that ensures optimal leak tightness and longevity.
- Optimum cooling performance and longevity.
Motorad – Standard Thermostat: 174 Degrees (Part No.247-174)
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$46.49
Manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
APA/URO – APA/URO Expansion Tank (Part No.G103016617APA)
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$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:
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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.
Calorstat – Thermostat (Part No.G400021351CAL)
from
$27.93
CALORSTAT thermostatic components (bellows thermostats for water temperature regulation), followed by the use of a different technology based on the wax expansion. CALORSTAT by Vernet has produced thermostatic elements for more than 50 years. A vast amount of experience and continuous development has enabled the Company to remain the world leader in this field. Throughout the world, Vernet is regarded as a valued partner by manufacturers, large and small, in the Sanitary, Heating and Automotive industry.
Product Features:
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Product Features:
- Comfort enhancement by a faster cabine warming
- CO2 emissions and fuel consumption reduction
- Thermostat opening driven by the ECU (electrical thermostat)
- An adaptation of the control strategies to the vehicle use (electrical thermostat)
Behr – Radiator Drain Plug (Part No.G106011756BEH)
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$11.70
Radiator Drain Plug
APA/URO Parts – Radiator Cap (Part No.G101030351APA)
from
$7.65
Radiator Cap
CRP – Coolant Sensor O-Rin (Part No.G105112427CRP)
from
$3.46
Coolant Sensor O-Rin
Top-Rated Cooling and Climate Controls Brands For Your 1978 Mercedes-Benz 300SD
Shop for the best-rated brands offering Cooling and Climate Controls and other products for your 1978 Mercedes-Benz 300SDs. Below you’ll find some of our best rated Cooling and Climate Controls from Carquest, Carquest Premium, and Factory Air, and more. Cooling and Climate Controls from these brands that fit a 1978 300SD start at just $9.79 and are rated as high as 4.4 stars. OEM and aftermarket Cooling and Climate Controls don’t get more top quality, durable, and affordable than from the brands below.
Popular Carquest 1978 Mercedes-Benz 300SD Cooling and Climate Controls
When it comes to maintaining or upgrading your 1978 Mercedes-Benz 300SD, using quality Cooling and Climate Controls is essential to ensure durability and a perfect fit. Carquest ticks all of those boxes. We offer a wide selection of Carquest Cooling and Climate Controls, specifically designed for the 1978 Mercedes-Benz 300SD. With over 2 Carquest brand Cooling and Climate Controls in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $228.99, with an average price of just $281.99. Plus, with over 3 customer reviews and an average rating of 4.4 stars, you can trust that our Carquest Cooling and Climate Controls will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
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$228.99
(2)
Reman GM R4 Heavy Compressor w/ Clutch
“So far so good, Easy to install, It works great, Time will tell. Shipping and service was above average.”
Popular Carquest Premium 1978 Mercedes-Benz 300SD Cooling and Climate Controls
Carquest Premium auto parts is one of the highest quality Cooling and Climate Control brands in the market. Any 1978 Mercedes-Benz 300SD owner should feel confident when installing genuine Carquest Premium parts in their vehicle. To ensure the best fit and performance for your 1978 300SD, Advance Auto Parts carries a full inventory of 2 Carquest Premium Cooling and Climate Controls. Plus you will be keeping your Mercedes-Benz in peak condition while saving money because prices on these Carquest Premium Cooling and Climate Controls range from $9.79 to $10.49, plus, with more than 99 customer reviews and an impressive 4.4 stars average rating, you can be confident the Fram Cooling and Climate Controls below will deliver on both quality and value.
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$9.79
(51)
Radiator Cap: 13 PSI
“It’s a radiator cap, it keeps the coolant in the radiator under pressure. Works as it should”
FAQs for 1978 Mercedes-Benz 300SD Cooling and Climate Controls
Which Cooling and Climate Controls are best-sellers for 1978 Mercedes-Benz 300SDs?
Out of 44 Cooling and Climate Controls that fit 1978 Mercedes-Benz 300SDs, the following parts are the top sellers:
- Cap & Valve A/C System Seal Kit (15890308) – $16.99
- 5-Wire Style Relay (22148718) – $17.99
- Engine Oil Drain Plug Gasket (12073270) – $6.39
What’s the price range for 1978 Mercedes-Benz 300SD Cooling and Climate Controls?
Cooling and Climate Control prices for the 1978 Mercedes-Benz 300SD start at $0.99 and go up to $540.97 for the most premium parts.
What’s the average price of a Cooling and Climate Control for a 1978 Mercedes-Benz 300SD?
The average price for Cooling and Climate Controls for the 1978 Mercedes-Benz 300SD is $92.88. Keep in mind the variety of part types within our Cooling and Climate Control category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Cooling and Climate Controls for other Mercedes-Benz 300SD model years?
What are the cheapest Cooling and Climate Controls for my 1978 Mercedes-Benz 300SD?
The cheapest 1978 Mercedes-Benz 300SD Cooling and Climate Controls we carry in stock 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
- Coolant Sensor O-Rin (11974183) – $3.46
- Engine Oil Drain Plug Gasket (12073270) – $6.39
What are the top-rated Cooling and Climate Controls that fit the 1978 Mercedes-Benz 300SD?
Out of 114 reviews by customers, our 1978 Mercedes-Benz 300SD Cooling and Climate Controls have an average customer rating of . These are some of the highest-rated Cooling and Climate Control types for the 1978 Mercedes-Benz 300SD and their top-rated products:
- Engine Cooling Parts
- Radiator Cap: 13 PSI (17110036) – $10.49
- Radiator Cap: 13 PSI (17110017) – $9.79
- Standard Thermostat: 180 Degrees (5653223) – $22.99
- Air Conditioning Parts
- Radiator Cap: 13 PSI (17110036) – $10.49
- Radiator Cap: 13 PSI (17110017) – $9.79
- Standard Thermostat: 180 Degrees (5653223) – $22.99
What types of Cooling and Climate Controls do you sell for my 1978 Mercedes-Benz 300SD?
As of 4/10/25, these are some of the most in-demand types of Cooling and Climate Controls for a 1978 Mercedes-Benz 300SD:
Can I get help with 1978 Mercedes-Benz 300SD Cooling and Climate Control orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Mercedes-Benz Cooling and Climate Controls and more.
What is your return policy for Mercedes-Benz 300SD Cooling and Climate Controls?
Advance Auto Parts keeps returns simple. For new Mercedes-Benz 300SD Cooling and Climate Controls and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
