1991 Peterbilt 375 Engine Cooling Parts
Keep Your 1991 Peterbilt 375 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 1991 Peterbilt 375 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Thermostats, Water Pumps, and Cooling System Filters. 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 1991 Peterbilt 375 Engine Cooling Part at Advance Auto Parts is around $66.92, with a range that starts at $4.99 and goes up to $549.99. With 18 options in stock from 4 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 Blend Doors and Blower Motor and Related Products. At Advance Auto Parts, we’re here to help you keep your 1991 Peterbilt 375 in peak condition, inside and out.
Find Your Specific 1991 Peterbilt 375 Engine Cooling Parts
Looking for the perfect Engine Cooling Part for your 1991 Peterbilt 375? You’re in the right place. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Cooling Parts, ensuring durability and a precise fit for your Peterbilt 375. Whether you’re driving a 1991 model or another popular model year like
1987,
1988,
1989,
1990,
1992,
1993,
1994,
1995, and
1996, we’ve got you covered. Purchasing Engine Cooling Parts from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle.
Essential 1991 Peterbilt 375 Engine Cooling Parts
Carquest Premium – Carquest Heavy Duty Thermostat: With Seal, 180 Degrees, 15228 (Part No.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, 14539 (Part No.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 Thermostat: With Seal, 190 Degrees, 14239 (Part No.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
Motorad – Motorad Integrated Housing HD Thermostat: 225 Degrees, 4078-25 (Part No.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 Coolant Spin-On Filter with Bta Plus Formula, 89075 (Part No.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 Temperature Sensor, WTA2369 (Part No.WTA2369)
from
$4.99
Approved materials for increased durability in even the most extreme temperatures. All Carquest Coolant Temperature Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
See More
Carquest Premium – Carquest Coolant Temperature Sensor, WTA2365 (Part No.WTA2365)
from
$4.99
Approved materials for increased durability in even the most extreme temperatures. All Carquest Coolant Temperature Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
See More
Carquest Premium – Carquest Thermostat: With Seal, 160 Degrees, 14536 (Part No.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 Heavy Duty Thermostat: 180 Degrees, 14978 (Part No.14978)
from
$20.99
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)
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)
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
Gates – Gates Heavy-Duty Engine Water Pump, 44094HD (Part No.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
Gates – Gates Heavy-Duty Engine Water Pump, 42352HD (Part No.42352HD)
from
$331.99
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, 43320HD (Part No.43320HD)
from
$192.99
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, 41175HD (Part No.41175HD)
from
$292.99
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, 43307HD (Part No.43307HD)
from
$549.99
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, 45009HD (Part No.45009HD)
from
$755.99
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, 43321HD (Part No.43321HD)
from
$197.99
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
Dorman – HD Solutions – Dorman – HD Solutions Low Coolant Level Sensor, 904-7363 (Part No.904-7363)
from
$273.99
This engine coolant level sensor is designed to match the fit and function of the original sensor on specified vehicles, and is engineered for durability and reliable performance.
See More
Popular 1991 Peterbilt 375 Engine Cooling Parts Categories
Most Popular Thermostats for 1991 Peterbilt 375s
Enhance your 1991 Peterbilt 375 with one of the 9 Thermostats we have in stock, starting at just $20.99.
Carquest Premium – Carquest Thermostat: With Seal, 190 Degrees, 14539 (Part No.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)
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)
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)
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
Carquest Premium – Carquest Heavy Duty Thermostat: With Seal, 180 Degrees, 15218 (Part No.15218)
from
$24.99
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: 175 Degrees, 14857 (Part No.14857)
from
$64.99
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: 175 Degrees, 14917 (Part No.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.
See More
Motorad – Motorad Heavy Duty Engine Coolant Thermostat: 235 Degrees, 4079-35 (Part No.4079-35)
from
$31.99
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
Motorad – Motorad Integrated Housing HD Thermostat: 225 Degrees, 4078-25 (Part No.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
Best-Selling 1991 Peterbilt 375 Water Pumps
Upgrade your 375 with one of our 2 best-selling Water Pumps.
Gates – Gates Heavy-Duty Engine Water Pump, 43307HD (Part No.43307HD)
from
$549.99
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, 41175HD (Part No.41175HD)
from
$292.99
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
Top-Quality Cooling System Filters for 1991 Peterbilt 375s
Choose a high-quality OEM or aftermarket Cooling System Filter for Peterbilt 375s and enjoy top-notch performance from $59.99.
Carquest Premium – Carquest Coolant Spin-On Filter with Bta Plus Formula, 89075 (Part No.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
Top Picks for 1991 Peterbilt 375 Coolant Temperature Sensors
Invest in one of our 2 durable Coolant Temperature Sensors for your 1991 Peterbilt, knowing you’re getting trusted brands and expert craftsmanship.
Carquest Premium – Carquest Coolant Temperature Sensor, WTA2365 (Part No.WTA2365)
from
$4.99
Approved materials for increased durability in even the most extreme temperatures. All Carquest Coolant Temperature Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
See More
Carquest Premium – Carquest Coolant Temperature Sensor, WTA2369 (Part No.WTA2369)
from
$4.99
Approved materials for increased durability in even the most extreme temperatures. All Carquest Coolant Temperature Sensors are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
See More
Thermostat – Optional Replacements for 1991 Peterbilt 375s
Make a smart move for your 1991 Peterbilt 375 with products all priced from $36.99 to $52.99.
Carquest Premium – Carquest Thermostat: With Seal, 160 Degrees, 14536 (Part No.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)
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)
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
FAQs for 1991 Peterbilt 375 Engine Cooling Parts
What are the best-selling Engine Cooling Parts for 1991 Peterbilt 375s?
Out of 18 Engine Cooling Parts that fit 1991 Peterbilt 375s, the following parts are the top sellers:
- Carquest Thermostat: With Seal, 190 Degrees, 14539 (15480034) – $39.99
- Carquest Heavy Duty Thermostat: With Seal, 190 Degrees, 15229 (11330362) – $51.99
- Carquest Heavy Duty Thermostat: With Seal, 180 Degrees, 15228 (11330194) – $50.99
What’s the price range for 1991 Peterbilt 375 Engine Cooling Parts?
The prices of Engine Cooling Parts for the 1991 Peterbilt 375 range from $4.99 up to $549.99 for the most premium parts.
What is the average price of an Engine Cooling Part for a 1991 Peterbilt 375?
The average price for Engine Cooling Parts for the 1991 Peterbilt 375 is $66.92. 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 Peterbilt 375 model years?
What are the cheapest Engine Cooling Parts for my 1991 Peterbilt 375?
The cheapest 1991 Peterbilt 375 Engine Cooling Parts we carry are:
- Carquest Coolant Temperature Sensor, WTA2365 (50215073) – $4.99
- Carquest Coolant Temperature Sensor, WTA2369 (50215342) – $4.99
- Motorad Integrated Housing HD Thermostat: 225 Degrees, 4078-25 (50168984) – $20.99
- Carquest Heavy Duty Thermostat: With Seal, 180 Degrees, 15218 (11330338) – $24.99
- Motorad Heavy Duty Engine Coolant Thermostat: 235 Degrees, 4079-35 (50168974) – $31.99
Does Advance Auto Parts sell Engine Cooling Parts for any other 1991 Peterbilt models?
Yes. We stock Engine Cooling Parts for 10 other popular 1991 Peterbilt models. Some of the most popular are 1991 379 Engine Cooling Parts, 1991 377 Engine Cooling Parts, 1991 378 Engine Cooling Parts, 1991 357 Engine Cooling Parts, and 1991 372 Engine Cooling Parts.
What types of Engine Cooling Parts do you sell for my 1991 Peterbilt 375?
As of 8/2/26, these are some of the most in-demand types of Engine Cooling Parts for a 1991 Peterbilt 375:
Can I get help with 1991 Peterbilt 375 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 Peterbilt Engine Cooling Parts and more.
What is your return policy for Peterbilt 375 Engine Cooling Parts?
Advance Auto Parts keeps returns simple. For new Peterbilt 375 Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.