1981 Mercedes-Benz 300TD Engine Cooling Parts

Keep Your 1981 Mercedes-Benz 300TD in Top Shape with Quality Engine Cooling Parts

Whether you’re repairing or upgrading your Engine Cooling Part, using high-quality parts is key to keeping your 1981 Mercedes-Benz 300TD looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Radiator Fan Clutch, Radiator Cap Adapters, and Thermostats. 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 Engine Cooling Parts from Trusted Brands

Looking for a reliable Engine Cooling Part? We’ve got you covered with options from brands you know and trust like Carquest Premium. For example, Carquest Premium Engine Cooling Parts start at just $10.49 with an average 4.4 star rating. With over 101 reviews and a solid 4 star average, you can shop with confidence knowing other Mercedes-Benz 300TD owners approve.

Competitive Prices and Extensive Inventory

The average price for a 1981 Mercedes-Benz 300TD Engine Cooling Part at Advance Auto Parts is around $46.32, with a range that starts at $10.49 and goes up to $171.99. With 6 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Radiator Cap Tester Adapter, Standard Thermostat: 174 Degrees, and Universal Reverse Rotation Thermal Standard Duty Fan Clutch start at just $14.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Cooling Part, don’t forget to check out other key components like Air Conditioning Parts. At Advance Auto Parts, we’re here to help you keep your 1981 Mercedes-Benz 300TD in peak condition, inside and out.

Essential 1981 Mercedes-Benz 300TD Engine Cooling Parts

Carquest Premium – Radiator Cap: 13 PSI (Part No.10229)

Radiator Cap: 13 PSI

from

$10.99
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:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Carquest Premium – Radiator Cap: 16 PSI (Part No.10230)

Radiator Cap: 16 PSI

from

$10.99
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:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Carquest Premium – Radiator Cap: 16 PSI (Part No.10226)

Radiator Cap: 16 PSI

from

$9.99
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:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Carquest Premium – Radiator Cap: 13 PSI (Part No.10329)

Radiator Cap: 13 PSI

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:
  • 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
See More

Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13588)

Standard Thermostat: 180 Degrees

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:
  • 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
See More

Motorad – Standard Thermostat: 174 Degrees (Part No.247-174)

Standard Thermostat: 174 Degrees

from

$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:
  • 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
See More

Carquest Premium – Universal Reverse Rotation Thermal Standard Duty Fan Clutch (Part No.215131)

Universal Reverse Rotation Thermal Standard Duty Fan Clutch

from

$171.99
Product Features:
  • Designed, tested, and built by application
  • OE performance, fit, and appearance
  • Precision machined
  • Out of box installation
See More

Carquest Premium – Radiator Cap Tester Adapter (Part No.12552)

Radiator Cap Tester Adapter

from

$14.99
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
See More

Most Popular Radiator Fan Clutch for 1981 Mercedes-Benz 300TDs

Enhance your 1981 Mercedes-Benz 300TD with this popular Radiator Fan Clutch we have in stock, for $171.99.

Carquest Premium – Universal Reverse Rotation Thermal Standard Duty Fan Clutch (Part No.215131)

Universal Reverse Rotation Thermal Standard Duty Fan Clutch

from

$171.99
Product Features:
  • Designed, tested, and built by application
  • OE performance, fit, and appearance
  • Precision machined
  • Out of box installation
See More

Best-Selling 1981 Mercedes-Benz 300TD Radiator Cap Adapter

Upgrade your 300TD with our best-selling Radiator Cap Adapter.

Carquest Premium – Radiator Cap Tester Adapter (Part No.12552)

Radiator Cap Tester Adapter

from

$14.99
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
See More

Top-Quality Thermostats for 1981 Mercedes-Benz 300TDs

Choose a high-quality OEM or aftermarket Thermostat for Mercedes-Benz 300TDs and enjoy top-notch performance from $22.99.

Carquest Premium – Standard Thermostat: 180 Degrees (Part No.13588)

Standard Thermostat: 180 Degrees

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:
  • 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
See More

Motorad – Standard Thermostat: 174 Degrees (Part No.247-174)

Standard Thermostat: 174 Degrees

from

$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:
  • 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
See More

Top Picks for 1981 Mercedes-Benz 300TD Radiator Caps

Invest in one of our 2 durable Radiator Caps for your 1981 Mercedes-Benz, knowing you’re getting trusted brands and expert craftsmanship.

Carquest Premium – Radiator Cap: 13 PSI (Part No.10329)

Radiator Cap: 13 PSI

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:
  • 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
See More

Carquest Premium – Radiator Cap: 13 PSI (Part No.10229)

Radiator Cap: 13 PSI

from

$10.99
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:
  • Maintains proper cooling system pressure
  • Easy installation and removal
  • 100% tested to ensure proper pressure and longevity
  • Meets all OEM specifications
See More

Top-Rated Engine Cooling Part Brands For Your 1981 Mercedes-Benz 300TD

When it comes to finding the perfect Engine Cooling Part for your 1981 Mercedes-Benz 300TD, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 2 trusted brands. We carry the most popular Engine Cooling Part brands including Carquest Premium, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $10.49. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 1981 Mercedes-Benz 300TD, providing peace of mind with parts that meet or exceed OEM standards.

Popular Carquest Premium 1981 Mercedes-Benz 300TD Engine Cooling Parts

If you’re looking for a top-quality Engine Cooling Part for your 1981 Mercedes-Benz 300TD, Advance Auto Parts has exactly what you need with our selection of Carquest Premium Engine Cooling Parts. We have 2 Carquest Premium Engine Cooling Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $10.49 and an average cost of $10.74, you’ll find the perfect Engine Cooling Part for your needs and budget. Carquest Premium Engine Cooling Parts for the 1981 Mercedes-Benz 300TD come highly rated, with over 99 customer reviews and an impressive average rating of 4.4 stars. Choosing a Carquest Premium Engine Cooling Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
Radiator Cap: 13 PSI
from $10.99
(51)
Radiator Cap: 13 PSI
“It’s a radiator cap, it keeps the coolant in the radiator under pressure. Works as it should”
Radiator Cap: 13 PSI
from $10.49
(48)
Radiator Cap: 13 PSI
“Like the vent feature.”

FAQs for 1981 Mercedes-Benz 300TD Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 1981 Mercedes-Benz 300TDs?

Out of 6 Engine Cooling Parts that fit 1981 Mercedes-Benz 300TDs, the following parts are the top sellers:

What’s the price range for 1981 Mercedes-Benz 300TD Engine Cooling Parts?

The prices of Engine Cooling Parts for the 1981 Mercedes-Benz 300TD range from $10.49 up to $171.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 1981 Mercedes-Benz 300TD?

The average price for Engine Cooling Parts for the 1981 Mercedes-Benz 300TD is $46.32. Keep in mind the variety of part types within our Engine Cooling 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 Engine Cooling Parts for other Mercedes-Benz 300TD model years?

Yes, we carry Engine Cooling Parts for 4 model years of Mercedes-Benz 300TDs between 1979 and 1985. The following model years are the most popular for Engine Cooling Part purchases: 1985, 1984, 1982, 1980, and 1979.

What are the cheapest Engine Cooling Parts for my 1981 Mercedes-Benz 300TD?

The cheapest 1981 Mercedes-Benz 300TD Engine Cooling Parts we carry are:

Does Advance Auto Parts sell Engine Cooling Parts for any other 1981 Mercedes-Benz models?

Yes. We stock Engine Cooling Parts for 8 other popular 1981 Mercedes-Benz models. Some of the most popular are 1981 380SEL Engine Cooling Parts, 1981 300SD Engine Cooling Parts, 1981 300D Engine Cooling Parts, 1981 280E Engine Cooling Parts, and 1981 280CE Engine Cooling Parts.

What are the top-rated Engine Cooling Parts that fit the 1981 Mercedes-Benz 300TD?

Based on 101 reviews by customers, our 1981 Mercedes-Benz 300TD Engine Cooling Parts have an average customer rating of 4 stars. These are the highest-rated categories of Engine Cooling Parts for the 1981 Mercedes-Benz 300TD and their top-rated products:

What types of Engine Cooling Parts do you sell for my 1981 Mercedes-Benz 300TD?

As of 11/2/25, these are some of the most in-demand types of Engine Cooling Parts for a 1981 Mercedes-Benz 300TD:

Can I get help with 1981 Mercedes-Benz 300TD Engine Cooling 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 Engine Cooling Parts and more.

What is your return policy for Mercedes-Benz 300TD Engine Cooling Parts?

Advance Auto Parts keeps returns simple. For new Mercedes-Benz 300TD Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.