2003 New Flyer D35 Engine Cooling Parts

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Keep Your 2003 New Flyer D35 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 2003 New Flyer D35 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Engine Coolant Filters 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 2003 New Flyer D35 Engine Cooling Part at Advance Auto Parts is around $107.99, with a range that starts at $33.99 and goes up to $181.99. With 2 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Carquest Spin-On Coolant Filter: Controlled Release with Bte Plus Formula, 89088 and Motorad Engine Coolant HD Thermostat: With Seal, 190 Degrees, 4087-90 start at just $33.99 and offer a great balance of form and function.

Essential 2003 New Flyer D35 Engine Cooling Parts

Carquest Premium – Carquest Heavy Duty Thermostat: With Seal, 180 Degrees, 15218 (Part No.15218)

Carquest Heavy Duty Thermostat: With Seal, 180 Degrees, 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.
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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.
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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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Motorad – Motorad Engine Coolant HD Thermostat: With Seal, 190 Degrees, 4087-90 (Part No.4087-90)

Motorad Engine Coolant HD Thermostat: With Seal, 190 Degrees, 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 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.
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Motorad – Motorad Heavy Duty Engine Coolant Thermostat: 235 Degrees, 4079-35 (Part No.4079-35)

Motorad Heavy Duty Engine Coolant Thermostat: 235 Degrees, 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 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.
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Carquest Premium – Carquest Spin-On Coolant Filter: Controlled Release with Bte Plus Formula, 89088 (Part No.89088)

Carquest Spin-On Coolant Filter: Controlled Release with Bte Plus Formula, 89088

from

$181.99
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).
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Most Popular Engine Coolant Filter for 2003 New Flyer D35s

Enhance your 2003 New Flyer D35 with this popular Engine Coolant Filter we have in stock, for $181.99.

Carquest Premium – Carquest Spin-On Coolant Filter: Controlled Release with Bte Plus Formula, 89088 (Part No.89088)

Carquest Spin-On Coolant Filter: Controlled Release with Bte Plus Formula, 89088

from

$181.99
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).
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Best-Selling 2003 New Flyer D35 Thermostat

Upgrade your D35 with our best-selling Thermostat.

Motorad – Motorad Engine Coolant HD Thermostat: With Seal, 190 Degrees, 4087-90 (Part No.4087-90)

Motorad Engine Coolant HD Thermostat: With Seal, 190 Degrees, 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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FAQs for 2003 New Flyer D35 Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 2003 New Flyer D35s?

Out of 2 Engine Cooling Parts that fit 2003 New Flyer D35s, the following parts are the top sellers:

What’s the price range for 2003 New Flyer D35 Engine Cooling Parts?

The prices of Engine Cooling Parts for the 2003 New Flyer D35 range from $33.99 up to $181.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 2003 New Flyer D35?

The average price for Engine Cooling Parts for the 2003 New Flyer D35 is $107.99. 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 D35 model years?

Yes, we carry Engine Cooling Parts for 8 model years of New Flyer D35s between 1988 and 2004. The following model years are the most popular for Engine Cooling Part purchases: 2004, 2002, 2001, 2000, 1996, 1995, 1990, 1988, and 1992.

What are the cheapest Engine Cooling Parts for my 2003 New Flyer D35?

The cheapest 2003 New Flyer D35 Engine Cooling Parts we carry are:

Does Advance Auto Parts sell Engine Cooling Parts for any other 2003 New Flyer models?

Yes. We stock Engine Cooling Parts for 5 other popular 2003 New Flyer models. Some of the most popular are 2003 D60LF Engine Cooling Parts, 2003 D40LF Engine Cooling Parts, 2003 D60 Engine Cooling Parts, 2003 C30LF Engine Cooling Parts, and 2003 C40 Engine Cooling Parts.

What types of Engine Cooling Parts do you sell for my 2003 New Flyer D35?

As of 8/2/26, these are some of the most in-demand types of Engine Cooling Parts for a 2003 New Flyer D35:

Can I get help with 2003 New Flyer D35 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 D35 Engine Cooling Parts?

Advance Auto Parts keeps returns simple. For new New Flyer D35 Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.