1990 New Flyer D40 Engine Cooling Parts
Keep Your 1990 New Flyer D40 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 1990 New Flyer D40 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Coolant Temperature Sensors, 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 1990 New Flyer D40 Engine Cooling Part at Advance Auto Parts is around $95.26, with a range that starts at $4.99 and goes up to $675.99. With 11 options in stock from 3 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.
Find Your Specific 1990 New Flyer D40 Engine Cooling Parts
Looking for the perfect Engine Cooling Part for your 1990 New Flyer D40? 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 New Flyer D40. Whether you’re driving a 1990 model or another popular model year like
1988,
1989,
1992,
1993, and
1994, 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 1990 New Flyer D40 Engine Cooling Parts
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.
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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.
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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.
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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.
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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.
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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.
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Motorad – Motorad Engine Coolant HD Thermostat: With Seal, 190 Degrees, 4087-90 (Part No.4087-90)
from
$33.99
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.
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Carquest Premium – Carquest Coolant Temperature Sensor, WTA2372 (Part No.WTA2372)
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.
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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.
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Gates – Gates Heavy-Duty Engine Water Pump, 44066HD (Part No.44066HD)
from
$449.99
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, 46002HD (Part No.46002HD)
from
$694.99
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, 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
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.
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Popular 1990 New Flyer D40 Engine Cooling Parts Categories
Most Popular Coolant Temperature Sensor for 1990 New Flyer D40s
Enhance your 1990 New Flyer D40 with this popular Coolant Temperature Sensor we have in stock, for $4.99.
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.
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Best-Selling 1990 New Flyer D40 Thermostat – Optional Replacements
Upgrade your D40 with one of our 3 best-selling Thermostat – Optional Replacements.
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.
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Top-Quality Thermostats for 1990 New Flyer D40s
Choose a high-quality OEM or aftermarket Thermostat for New Flyer D40s and enjoy top-notch performance from $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
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
Our Top Pick for a 1990 New Flyer D40 Water Pump
Invest in a
durable Water Pump for your 1990 New Flyer, knowing you’re getting trusted brands and expert craftsmanship.
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
FAQs for 1990 New Flyer D40 Engine Cooling Parts
What are the best-selling Engine Cooling Parts for 1990 New Flyer D40s?
Out of 11 Engine Cooling Parts that fit 1990 New Flyer D40s, 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 1990 New Flyer D40 Engine Cooling Parts?
The prices of Engine Cooling Parts for the 1990 New Flyer D40 range from $4.99 up to $675.99 for the most premium parts.
What is the average price of an Engine Cooling Part for a 1990 New Flyer D40?
The average price for Engine Cooling Parts for the 1990 New Flyer D40 is $95.26. 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 New Flyer D40 model years?
What are the cheapest Engine Cooling Parts for my 1990 New Flyer D40?
The cheapest 1990 New Flyer D40 Engine Cooling Parts we carry are:
- Carquest Coolant Temperature Sensor, WTA2369 (50215342) – $4.99
- Motorad Integrated Housing HD Thermostat: 225 Degrees, 4078-25 (50168984) – $20.99
- Motorad Heavy Duty Engine Coolant Thermostat: 235 Degrees, 4079-35 (50168974) – $31.99
- Carquest Thermostat: With Seal, 160 Degrees, 14536 (20480066) – $36.99
- Carquest Thermostat: With Seal, 180 Degrees, 14538 (17650013) – $38.99
Does Advance Auto Parts sell Engine Cooling Parts for any other 1990 New Flyer models?
Yes. We stock Engine Cooling Parts for 1 other popular 1990 New Flyer models. Some of the most popular are 1990 D60 Engine Cooling Parts and 1990 D35 Engine Cooling Parts.
What types of Engine Cooling Parts do you sell for my 1990 New Flyer D40?
As of 8/2/26, these are some of the most in-demand types of Engine Cooling Parts for a 1990 New Flyer D40:
Can I get help with 1990 New Flyer D40 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 New Flyer Engine Cooling Parts and more.
What is your return policy for New Flyer D40 Engine Cooling Parts?
Advance Auto Parts keeps returns simple. For new New Flyer D40 Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.