108+ 2003 Chevrolet Trailblazer Cooling System LTZ Parts - Page 2

LTZ · Cooling System (108 products)

Exact-fit parts for the 2003 Chevrolet Trailblazer LTZ.

Spectra Premium

Part # 1010169

Fits with Conditions

A/C Evaporator Core

$90.89

CSF

Part # 10566

Fits with Conditions

A/C Condenser

$93.39

Engine Coolant Thermostat Housing Assembly

Dorman

Part # 902-2131

Fits with Conditions

Engine Coolant Thermostat Housing Assembly

$41.02

Denso

Part # 221-9012

Fits with Conditions

Radiator

$169.57

Dorman

Part # 902-116

Fits with Conditions

Engine Coolant Water Outlet

$25.20

Spectra Premium

Part # 1010008

Fits with Conditions

A/C Evaporator Core

$76.29

Dorman

Part # 800-403

Fits with Conditions

Heater Hose Connector

$14.55

Integrated Housing Engine Coolant Thermostat

Gates

Part # 33939

Fits with Conditions

Integrated Housing Engine Coolant Thermostat

$36.94

Fel-Pro

Part # 36009

Confirmed Fit

Fel-Pro Chevrolet Trailblazer 36009 Engine Coolant Thermostat Housing Gasket

$9.55

Spectra Premium

Part # 7-3054

Fits with Conditions

A/C Condenser

$116.88

Gates

Part # 19193

Confirmed Fit

Gates 97-03 Ford F Series V-8 5.4L Heater To Pipe-1 Molded Heater Hose

$21.84

Integrated Housing Thermostat-192 Degrees w/ Seal

Motorad

Part # 413-192

Fits with Conditions

Integrated Housing Thermostat-192 Degrees w/ Seal

$32.89

Onix

Part # OR2458

Fits with Conditions

Radiator

$105.29

Motorad

Part # CH5096

Fits with Conditions

Engine Coolant Thermostat Housing

$24.88

Integrated Housing Thermostat-180 Degrees w/ Seal

Motorad

Part # 413-180

Fits with Conditions

Integrated Housing Thermostat-180 Degrees w/ Seal

$35.14

Dorman

Part # 82594

Fits with Conditions

Coolant Cap

$9.61

Designed to transfer glycol-based coolant throughout the vehicle's cooling system. The EPDM tube and cover and the synthetic reinforcement meets or exceeds SAE 20R4EC Class D1 specifications. Exact OEM configuration ensures a perfect fit.

ContiTech

Part # 62423

Fits with Conditions

Designed to transfer glycol-based coolant throughout the vehicle's cooling system. The EPDM tube and cover and the synthetic reinforcement meets or exceeds SAE 20R4EC Class D1 specifications. Exact OEM configuration ensures a perfect fit.

$39.93

Gates

Part # 19700

Confirmed Fit

Gates 02-05 Chevrolet Trailblazer 6-Cyl. 4.2L Eng. To Heater Molded Heater Hose

$19.14

Gates

Part # 28412

Confirmed Fit

Gates 3/4in x 50 ft Safety Stripe Heater Hose

$70.31

Gates

Part # 22651

Confirmed Fit

Gates 02-09 Chevrolet Trailblazer 6-Cyl. 4.2L Lower Molded Coolant Hose

$30.02

Frequently Asked Questions

Do these parts fit my 2003 Chevrolet Trailblazer LTZ?

This page groups parts listed for the 2003 Chevrolet Trailblazer LTZ. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.

What cooling system options are available for my 2003 Chevrolet Trailblazer LTZ?

We offer a wide selection of cooling system parts for the 2003 Chevrolet Trailblazer LTZ. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.

What brands make parts for the 2003 Chevrolet Trailblazer LTZ?

We carry parts from trusted brands including Dorman, Gates, Four Seasons, Motorad, and Spectra Premium, plus many more. Filter by brand to find your preferred manufacturer.

How fast do 2003 Chevrolet Trailblazer LTZ parts ship?

Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.

What warranty do your 2003 Chevrolet Trailblazer LTZ parts come with?

Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.

2003 Chevrolet Trailblazer(2,020 parts)

2003 Chevrolet Trailblazer(2,020 parts)

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Other Chevrolet Trailblazer Years

LTZ · Cooling System (108 products)

A/C Evaporator Core

A/C Condenser

Engine Coolant Thermostat Housing Assembly

Radiator

Engine Coolant Water Outlet

A/C Evaporator Core

Heater Hose Connector

Integrated Housing Engine Coolant Thermostat

Fel-Pro Chevrolet Trailblazer 36009 Engine Coolant Thermostat Housing Gasket

A/C Condenser

Gates 97-03 Ford F Series V-8 5.4L Heater To Pipe-1 Molded Heater Hose

Integrated Housing Thermostat-192 Degrees w/ Seal

Radiator

Engine Coolant Thermostat Housing

Integrated Housing Thermostat-180 Degrees w/ Seal

Coolant Cap

Designed to transfer glycol-based coolant throughout the vehicle's cooling system. The EPDM tube and cover and the synthetic reinforcement meets or exceeds SAE 20R4EC Class D1 specifications. Exact OEM configuration ensures a perfect fit.

Gates 02-05 Chevrolet Trailblazer 6-Cyl. 4.2L Eng. To Heater Molded Heater Hose

Gates 3/4in x 50 ft Safety Stripe Heater Hose

Gates 02-09 Chevrolet Trailblazer 6-Cyl. 4.2L Lower Molded Coolant Hose

Frequently Asked Questions

Do these parts fit my 2003 Chevrolet Trailblazer LTZ?

What cooling system options are available for my 2003 Chevrolet Trailblazer LTZ?

What brands make parts for the 2003 Chevrolet Trailblazer LTZ?

How fast do 2003 Chevrolet Trailblazer LTZ parts ship?

What warranty do your 2003 Chevrolet Trailblazer LTZ parts come with?