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Thermostat for 2003 Isuzu Ascender

We have 7 Items In-stock. Select your vehicle's Submodel to continue.

Stant OE replacement Thermostat

When it concerns selecting the right source for your cooling system's thermostat, trust Stant. Complete fitment, dependable overall operation, and sturdy construction are the defining attributes of Stant's original equipment equivalent thermostat. This replacement unit is meticulously designed to resemble the primary thermostat fitted in your automobile. Each and every Stant OE Replacement Thermostat is built within exact industry criterias in an effort to accomplish this manufacturing task.

For secure or comfy drive, routine car or truck monitoring is essential. Faulty parts can either decrease the quality or impede the overall performance of your automobile, resulting in any of the following: less than optimal gasoline mileage, poor general performance, or greater vulnerability to unexpected automobile or component break down. Purchase Stant OE Replacement Thermostat to restore your car's cooling system to optimum working condition.

Stant Thermostat, Stainless Steel, Direct Fit, Sold Individually
$21.72 List Price $25.63 Save $3.91 Availability: In Stock
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  • SKU#: ST14948
  • Anticipated Ship Out Time: Same day - 1 business day
Fits the following 2003 Isuzu Ascender submodels:
  • 8 Cyl 5.3L | Base, Limited, LS

Beck Arnley OE replacement Thermostat

If it's time to change your thermostat, Beck Arnley offers the ideal original equipment quality component to help you rebuild your cooling system into shape. It's similarly patterned after the original thermostat that was initially included with your motor vehicle so that you can be confident of its overall performance.

Fixing or modifying your car often entails changing parts. Because old automotive components inadequately perform, it's very important to move to new ones. Moreover, changing auto parts which are in bad shape helps your cooling to operate effectively and enables you to travel with comfort.

Beck Arnley Thermostat, Stainless Steel, Direct Fit, Sold Individually
$40.28 List Price $47.53 Save $7.25 Availability: In Stock
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  • SKU#: BEC1430843
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: 90-day or 4,000-mile Beck Arnley limited warranty
Fits the following 2003 Isuzu Ascender submodels:
  • 6 Cyl 4.2L | Limited, LS, Base
Beck Arnley Thermostat, Stainless Steel, Direct Fit, Sold Individually
$23.68 List Price $27.94 Save $4.26 Availability: In Stock
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  • SKU#: BEC1430842
  • Anticipated Ship Out Time: Same day - 1 business day
  • Warranty: 90-day or 4,000-mile Beck Arnley limited warranty
Fits the following 2003 Isuzu Ascender submodels:
  • 8 Cyl 5.3L | Base, Limited, LS

Hypertech - PowerStat Thermostats

HYPERTECH – POWERSTAT THERMOSTATS

By lowering the heat output of your engine’s air/fuel mixture and combustion chamber, Hypertech’s PowerStat thermostat increases the engine’s performance, drivability and its lifespan. Hypertech, an automotive technology leader in tuning computer-controlled vehicles, is backed by a dedicated team of proven racers, hot rodders and hard core enthusiasts who are passionate about performance.

  • Comes in either 160 or 180-degree ratings
  • Low-temp thermostat decreases temperature of air/fuel mixture and combustion chamber
  • Less detonation and lower engine temp translate to increased power and performance
Hypertech Thermostat, Hypertech PowerStat, Stainless Steel, Direct Fit
$36.44 List Price $43.00 Save $6.56 Availability: In Stock
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  • SKU#: H581028
  • Quantity Sold: Sold individually
  • Anticipated Ship Out Time: Same day - 1 business day
  • Flow Rate: High-flow
  • Opening Temperature Rating: 180 degrees
  • Warranty: Lifetime Hypertech limited warranty
Fits the following 2003 Isuzu Ascender submodels:
  • 8 Cyl 5.3L | Base, LS, Limited
  • 6 Cyl 4.2L | Limited, LS, Base

Gates OE replacement Thermostat

Gates is the company to turn to when it comes to a reliable components for your cooling setup. Perfect fit, dependable operation, and tough style are the exemplifying attributes of Gates's original equipment thermostat. This replacement unit is thoroughly patterned after to perform like the default thermostat that came with your car or truck. Every Gates OE Replacement Thermostat, so as to complete this manufacturing task, is designed according to exact criteria.

As a preventive step, it is advisable to constantly check your motor vehicle in between drives. Replacing damaged auto components enables you to regain driving comfort and overall vehicle functionality, save gasoline or diesel, or avert sudden automobile or hardware break down. Choose Gates OE Replacement Thermostat to fix your cooling system to its optimum shape.

Gates Thermostat, Direct Fit, 1-2 Business Days, 187 Degrees
$30.54 List Price $36.04 Save $5.50 Availability: In Stock
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  • SKU#: GAT33939
Fits the following 2003 Isuzu Ascender submodels:
  • 6 Cyl 4.2L | Limited, LS, Base
Gates Thermostat, Direct Fit, 1-2 Business Days, 186 Degrees
$24.79 List Price $29.25 Save $4.46 Availability: In Stock
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  • SKU#: GAT33910
Fits the following 2003 Isuzu Ascender submodels:
  • 8 Cyl 5.3L | Base, LS, Limited
Gates Thermostat, Direct Fit, 1-2 Business Days, 186 Degrees
$15.54 List Price $18.34 Save $2.80 Availability: In Stock
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  • SKU#: GAT33963
Fits the following 2003 Isuzu Ascender submodels:
  • 8 Cyl 5.3L | Base, Limited, LS