2008 Workhorse Custom Chassis R20 Engine Cooling Parts

Keep Your 2008 Workhorse Custom Chassis R20 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 2008 Workhorse Custom Chassis R20 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Thermostats and Water Pumps. 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 2008 Workhorse Custom Chassis R20 Engine Cooling Part at Advance Auto Parts is around $84.32, with a range that starts at $25.99 and goes up to $199.99. With 3 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Engine Water Pump: New, Gasket/Seals Included, Heavy Duty Thermostat: 180 Degrees, and Heavy Duty Thermostat: 190 Degrees start at just $25.99 and offer a great balance of form and function.

Essential 2008 Workhorse Custom Chassis R20 Engine Cooling Parts

Carquest Premium – Heavy Duty Thermostat: 180 Degrees (Part No.15208)

Heavy Duty Thermostat: 180 Degrees

from

$26.99
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
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Carquest Premium – Heavy Duty Thermostat: 190 Degrees (Part No.15209)

Heavy Duty Thermostat: 190 Degrees

from

$25.99
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

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

Heavy Duty Thermostat: With Seal, 180 Degrees

from

$24.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. 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.

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 – Engine Water Pump: New, Gasket/Seals Included (Part No.T3029)

Engine Water Pump: New, Gasket/Seals Included

from

$199.99
Carquest Premium water pumps are 100% new, high-quality parts that meet or exceed original equipment (O.E.) specifications. All components, including the housing, hub, bearings, gaskets and seals are designed for long-lasting service life. These water pumps are supplied with the gaskets or seals necessary for installation. Our Carquest Premium water pumps undergo stringent testing to ensure superior performance that we stand behind with an industry-leading warranty.

Product Features:
  • 100% tested for reliable performance
  • Durable housing features precisely machined mounting surface for proper sealing and fitment
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • Included heavy-duty unitized bearings, pressed-on hubs and optimal impeller clearance for a long-lasting water pump
  • All gaskets or seals necessary for water pump are included
  • This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
  • This pump is driven by the timing chain; see vehicle manufacturer recommendation for replacement of timing components
  • This pump is driven by the timing belt; see vehicle manufacturer recommendation for replacement of timing components
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Most Popular Thermostats for 2008 Workhorse Custom Chassis R20s

Enhance your 2008 Workhorse Custom Chassis R20 with one of the 2 Thermostats we have in stock, starting at just $25.99.

Carquest Premium – Heavy Duty Thermostat: 180 Degrees (Part No.15208)

Heavy Duty Thermostat: 180 Degrees

from

$26.99
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

Carquest Premium – Heavy Duty Thermostat: 190 Degrees (Part No.15209)

Heavy Duty Thermostat: 190 Degrees

from

$25.99
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

Best-Selling 2008 Workhorse Custom Chassis R20 Water Pump

Upgrade your R20 with our best-selling Water Pump.

Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T3029)

Engine Water Pump: New, Gasket/Seals Included

from

$199.99
Carquest Premium water pumps are 100% new, high-quality parts that meet or exceed original equipment (O.E.) specifications. All components, including the housing, hub, bearings, gaskets and seals are designed for long-lasting service life. These water pumps are supplied with the gaskets or seals necessary for installation. Our Carquest Premium water pumps undergo stringent testing to ensure superior performance that we stand behind with an industry-leading warranty.

Product Features:
  • 100% tested for reliable performance
  • Durable housing features precisely machined mounting surface for proper sealing and fitment
  • Equipped with weep chamber or similar feature to help prevent unnecessary replacement
  • Included heavy-duty unitized bearings, pressed-on hubs and optimal impeller clearance for a long-lasting water pump
  • All gaskets or seals necessary for water pump are included
  • This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
  • This pump is driven by the timing chain; see vehicle manufacturer recommendation for replacement of timing components
  • This pump is driven by the timing belt; see vehicle manufacturer recommendation for replacement of timing components
See More

FAQs for 2008 Workhorse Custom Chassis R20 Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 2008 Workhorse Custom Chassis R20s?

Out of 3 Engine Cooling Parts that fit 2008 Workhorse Custom Chassis R20s, the following parts are the top sellers:

What’s the price range for 2008 Workhorse Custom Chassis R20 Engine Cooling Parts?

The prices of Engine Cooling Parts for the 2008 Workhorse Custom Chassis R20 range from $25.99 up to $199.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 2008 Workhorse Custom Chassis R20?

The average price for Engine Cooling Parts for the 2008 Workhorse Custom Chassis R20 is $84.32. 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 Workhorse Custom Chassis R20 model years?

Yes, we carry Engine Cooling Parts for 3 model years of Workhorse Custom Chassis R20s between 2004 and 2007. The following model years are the most popular for Engine Cooling Part purchases: 2007, 2006, 2005, and 2004.

What are the cheapest Engine Cooling Parts for my 2008 Workhorse Custom Chassis R20?

The cheapest 2008 Workhorse Custom Chassis R20 Engine Cooling Parts we carry are:

Does Advance Auto Parts sell Engine Cooling Parts for any other 2008 Workhorse Custom Chassis models?

Yes. We stock Engine Cooling Parts for 5 other popular 2008 Workhorse Custom Chassis models. Some of the most popular are 2008 W42 Engine Cooling Parts, 2008 W22 Engine Cooling Parts, 2008 W18 Engine Cooling Parts, 2008 R26 Engine Cooling Parts, and 2008 W24 Engine Cooling Parts.

What types of Engine Cooling Parts do you sell for my 2008 Workhorse Custom Chassis R20?

As of 11/2/25, these are some of the most in-demand types of Engine Cooling Parts for a 2008 Workhorse Custom Chassis R20:

Can I get help with 2008 Workhorse Custom Chassis R20 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 Workhorse Custom Chassis Engine Cooling Parts and more.

What is your return policy for Workhorse Custom Chassis R20 Engine Cooling Parts?

Advance Auto Parts keeps returns simple. For new Workhorse Custom Chassis R20 Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.