1999 Mack MR Engine Cooling Parts

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Keep Your 1999 Mack MR 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 1999 Mack MR looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Cooling System Filters, Thermostat – Optional Replacements, 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.

Competitive Prices and Extensive Inventory

The average price for a 1999 Mack MR Engine Cooling Part at Advance Auto Parts is around $74.31, with a range that starts at $30.49 and goes up to $313.99. With 10 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Carquest Thermostat: With Seal, 190 Degrees, 14539, Carquest Heavy Duty Thermostat: With Seal, 190 Degrees, 15229, and Carquest Heavy Duty Thermostat: With Seal, 180 Degrees, 15228 start at just $39.99 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 and Blower Motor and Related Products. At Advance Auto Parts, we’re here to help you keep your 1999 Mack MR in peak condition, inside and out.

Essential 1999 Mack MR Engine Cooling Parts

Carquest Premium – Carquest Heavy Duty Thermostat: 175 Degrees, 14917 (Part No.14917)

Carquest Heavy Duty Thermostat: 175 Degrees, 14917

from

$62.99
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.
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Carquest Premium – Carquest Heavy Duty Thermostat: 190 Degrees, 14839 (Part No.14839)

Carquest Heavy Duty Thermostat: 190 Degrees, 14839

from

$17.49
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.
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Carquest Premium – Carquest Thermostat: With Seal, 190 Degrees, 14539 (Part No.14539)

Carquest Thermostat: With Seal, 190 Degrees, 14539

from

$39.99
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.
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Carquest Premium – Carquest Heavy Duty Thermostat: 180 Degrees, 14838 (Part No.14838)

Carquest Heavy Duty Thermostat: 180 Degrees, 14838

from

$21.99
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.
See More

Carquest Premium – Carquest Heavy Duty Thermostat: With Seal, 190 Degrees, 15229 (Part No.15229)

Carquest Heavy Duty Thermostat: With Seal, 190 Degrees, 15229

from

$51.99
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.
See More

Carquest Premium – Carquest Heavy Duty Thermostat: With Seal, 180 Degrees, 15228 (Part No.15228)

Carquest Heavy Duty Thermostat: With Seal, 180 Degrees, 15228

from

$50.99
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.
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Motorad – Motorad Integrated Housing HD Thermostat: 225 Degrees, 4078-25 (Part No.4078-25)

Motorad Integrated Housing HD Thermostat: 225 Degrees, 4078-25

from

$20.99
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.
See More

Carquest Premium – Carquest Thermostat: With Seal, 180 Degrees, 14538 (Part No.14538)

Carquest Thermostat: With Seal, 180 Degrees, 14538

from

$38.99
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.
See More

Carquest Premium – Carquest Thermostat: With Seal, 170 Degrees, 14537 (Part No.14537)

Carquest Thermostat: With Seal, 170 Degrees, 14537

from

$52.99
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.
See More

Carquest Premium – Carquest Thermostat: With Seal, 160 Degrees, 14536 (Part No.14536)

Carquest Thermostat: With Seal, 160 Degrees, 14536

from

$36.99
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.
See More

Gates – Gates Heavy-Duty Engine Water Pump, 43233HD (Part No.43233HD)

Gates Heavy-Duty Engine Water Pump, 43233HD

from

$243.99
Gates carries a huge line of water pumps for heavy duty applications. Our heavy duty water pump offering is designed to handle rugged Fleet standards.
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Gates – Gates Heavy-Duty Engine Water Pump, 43225HD (Part No.43225HD)

Gates Heavy-Duty Engine Water Pump, 43225HD

from

$269.99
Gates carries a huge line of water pumps for heavy duty applications. Our heavy duty water pump offering is designed to handle rugged Fleet standards.
See More

Gates – Gates Heavy-Duty Engine Water Pump, 43240HD (Part No.43240HD)

Gates Heavy-Duty Engine Water Pump, 43240HD

from

$313.99
Gates carries a huge line of water pumps for heavy duty applications. Our heavy duty water pump offering is designed to handle rugged Fleet standards.
See More

Gates – Gates Heavy-Duty Engine Water Pump, 43239HD (Part No.43239HD)

Gates Heavy-Duty Engine Water Pump, 43239HD

from

$311.99
Gates carries a huge line of water pumps for heavy duty applications. Our heavy duty water pump offering is designed to handle rugged Fleet standards.
See More

Gates – Gates Heavy-Duty Engine Water Pump, 43059HD (Part No.43059HD)

Gates Heavy-Duty Engine Water Pump, 43059HD

from

$522.99
Gates carries a huge line of water pumps for heavy duty applications. Our heavy duty water pump offering is designed to handle rugged Fleet standards.
See More

Gates – Gates Heavy-Duty Engine Water Pump, 44094HD (Part No.44094HD)

Gates Heavy-Duty Engine Water Pump, 44094HD

from

$675.99
Gates carries a huge line of water pumps for heavy duty applications. Our heavy duty water pump offering is designed to handle rugged Fleet standards.
See More

Carquest Premium – Carquest Coolant Spin-On Filter without Chemicals, 89430 (Part No.89430)

Carquest Coolant Spin-On Filter without Chemicals, 89430

from

$34.49
Carquest Premium Coolant Filters protect your engine’s cooling system by filtering out rust, scale, dirt, and other particles from the coolant fluid. Coolant filters remove contaminants that build up and cause clogging or corrosion in the radiator, water pump, heater core, and engine passages. By keeping the coolant clean and effective, these filters help prevent overheating and ensure optimal engine performance. Carquest Premium Coolant Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).
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Carquest Premium – Carquest Coolant Spin-On Filter with Bta Plus Formula, 89075 (Part No.89075)

Carquest Coolant Spin-On Filter with Bta Plus Formula, 89075

from

$59.99
Carquest Premium Coolant Filters protect your engine’s cooling system by filtering out rust, scale, dirt, and other particles from the coolant fluid. Coolant filters remove contaminants that build up and cause clogging or corrosion in the radiator, water pump, heater core, and engine passages. By keeping the coolant clean and effective, these filters help prevent overheating and ensure optimal engine performance. Carquest Premium Coolant Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).
See More

Carquest Premium – Carquest Coolant Spin-On Filter with Bte Plus Formula, 89428 (Part No.89428)

Carquest Coolant Spin-On Filter with Bte Plus Formula, 89428

from

$30.49
Carquest Premium Coolant Filters protect your engine’s cooling system by filtering out rust, scale, dirt, and other particles from the coolant fluid. Coolant filters remove contaminants that build up and cause clogging or corrosion in the radiator, water pump, heater core, and engine passages. By keeping the coolant clean and effective, these filters help prevent overheating and ensure optimal engine performance. Carquest Premium Coolant Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).
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Most Popular Cooling System Filters for 1999 Mack MRs

Enhance your 1999 Mack MR with one of the 2 Cooling System Filters we have in stock, starting at just $30.49.

Carquest Premium – Carquest Coolant Spin-On Filter with Bte Plus Formula, 89428 (Part No.89428)

Carquest Coolant Spin-On Filter with Bte Plus Formula, 89428

from

$30.49
Carquest Premium Coolant Filters protect your engine’s cooling system by filtering out rust, scale, dirt, and other particles from the coolant fluid. Coolant filters remove contaminants that build up and cause clogging or corrosion in the radiator, water pump, heater core, and engine passages. By keeping the coolant clean and effective, these filters help prevent overheating and ensure optimal engine performance. Carquest Premium Coolant Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).
See More

Carquest Premium – Carquest Coolant Spin-On Filter without Chemicals, 89430 (Part No.89430)

Carquest Coolant Spin-On Filter without Chemicals, 89430

from

$34.49
Carquest Premium Coolant Filters protect your engine’s cooling system by filtering out rust, scale, dirt, and other particles from the coolant fluid. Coolant filters remove contaminants that build up and cause clogging or corrosion in the radiator, water pump, heater core, and engine passages. By keeping the coolant clean and effective, these filters help prevent overheating and ensure optimal engine performance. Carquest Premium Coolant Filters are designed to meet or exceed the performance requirements of the Original Equipment Manufacturer (OEM).
See More

Best-Selling 1999 Mack MR Thermostat – Optional Replacements

Upgrade your MR with one of our 3 best-selling Thermostat – Optional Replacements.

Carquest Premium – Carquest Thermostat: With Seal, 160 Degrees, 14536 (Part No.14536)

Carquest Thermostat: With Seal, 160 Degrees, 14536

from

$36.99
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.
See More

Carquest Premium – Carquest Thermostat: With Seal, 170 Degrees, 14537 (Part No.14537)

Carquest Thermostat: With Seal, 170 Degrees, 14537

from

$52.99
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.
See More

Carquest Premium – Carquest Thermostat: With Seal, 180 Degrees, 14538 (Part No.14538)

Carquest Thermostat: With Seal, 180 Degrees, 14538

from

$38.99
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.
See More

Top-Quality Thermostats for 1999 Mack MRs

Choose a high-quality OEM or aftermarket Thermostat for Mack MRs and enjoy top-notch performance from $39.99.

Carquest Premium – Carquest Thermostat: With Seal, 190 Degrees, 14539 (Part No.14539)

Carquest Thermostat: With Seal, 190 Degrees, 14539

from

$39.99
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.
See More

Carquest Premium – Carquest Heavy Duty Thermostat: With Seal, 190 Degrees, 15229 (Part No.15229)

Carquest Heavy Duty Thermostat: With Seal, 190 Degrees, 15229

from

$51.99
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.
See More

Carquest Premium – Carquest Heavy Duty Thermostat: With Seal, 180 Degrees, 15228 (Part No.15228)

Carquest Heavy Duty Thermostat: With Seal, 180 Degrees, 15228

from

$50.99
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.
See More

Carquest Premium – Carquest Thermostat: With Seal, 190 Degrees, 14239 (Part No.14239)

Carquest Thermostat: With Seal, 190 Degrees, 14239

from

$41.99
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.
See More

Our Top Pick for a 1999 Mack MR Water Pump

Invest in a durable Water Pump for your 1999 Mack, knowing you’re getting trusted brands and expert craftsmanship.

Gates – Gates Heavy-Duty Engine Water Pump, 43240HD (Part No.43240HD)

Gates Heavy-Duty Engine Water Pump, 43240HD

from

$313.99
Gates carries a huge line of water pumps for heavy duty applications. Our heavy duty water pump offering is designed to handle rugged Fleet standards.
See More

FAQs for 1999 Mack MR Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 1999 Mack MRs?

Out of 10 Engine Cooling Parts that fit 1999 Mack MRs, the following parts are the top sellers:

What’s the price range for 1999 Mack MR Engine Cooling Parts?

The prices of Engine Cooling Parts for the 1999 Mack MR range from $30.49 up to $313.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 1999 Mack MR?

The average price for Engine Cooling Parts for the 1999 Mack MR is $74.31. 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 Mack MR model years?

Yes, we carry Engine Cooling Parts for 24 model years of Mack MRs between 1981 and 2007. The following model years are the most popular for Engine Cooling Part purchases: 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, and 1998.

What are the cheapest Engine Cooling Parts for my 1999 Mack MR?

Does Advance Auto Parts sell Engine Cooling Parts for any other 1999 Mack models?

What types of Engine Cooling Parts do you sell for my 1999 Mack MR?

As of 8/2/26, these are some of the most in-demand types of Engine Cooling Parts for a 1999 Mack MR:

Can I get help with 1999 Mack MR 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 Mack Engine Cooling Parts and more.

What is your return policy for Mack MR Engine Cooling Parts?

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