146+ 1999 GMC K1500 Cooling System Sierra SLE Parts - Page 6

Sierra SLE · Cooling System (146 products)

Exact-fit parts for the 1999 GMC K1500 Sierra SLE.

Dayco

Part # 71881

Fits with Conditions

CURVED RADIATOR HOSE, DAYCO

$26.16

Four Seasons

Part # 90483

Confirmed Fit

Aluminum Heater Core

$34.78

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 # 62172

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.

$28.81

Dorman

Part # 604-116

Fits with Conditions

HVAC Air Door Actuator

$44.24

Standard Motor Products

Part # TX3T

Fits with Conditions

Coolant Temperature Sensor

$11.03

Gates

Part # 21710

Confirmed Fit

Gates 88-95 Chevrolet C & K Series Pickup V-8 5.7L Lower Molded Coolant Hose

$22.48

GPD

Part # 8241411

Fits with Conditions

gpd Water Outlet 8241411

$12.79

Coolant Connector - Inlet/Outlet 3/4In. Tube x 5/8In. Hose

Skyward Automotive

Part # SK800409

Fits with Conditions

Coolant Connector - Inlet/Outlet 3/4In. Tube x 5/8In. Hose

$9.98

Dayco

Part # DP957H

Fits with Conditions

WATER PUMP-AUTO/LIGHT TRUCK, DAYCO

$93.02

Spectra Premium

Part # CU1791

Fits with Conditions

Radiator

$165.72

US Motor Works

Part # MCK1001

Fits with Conditions

Engine Water Pump and Fan Clutch

$104.38

Vernet

Part # TH1538.91

Fits with Conditions

Engine Coolant Thermostat

$10.89

Gates

Part # 43315

Fits with Conditions

Premium Engine Water Pump

$56.69

Power Steering Return Line Hose Assembly

Sunsong

Part # 3401544

Fits with Conditions

Power Steering Return Line Hose Assembly

$12.36

Compressor Mounted Cooling Fan Pressure Switch

Four Seasons

Part # 35972

Fits with Conditions

Compressor Mounted Cooling Fan Pressure Switch

$21.36

Dorman

Part # 626-105

Fits with Conditions

Heater Hose Assembly

$46.92

ContiTech

Part # 62075

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.

$28.70

Four Seasons

Part # 54598

Fits with Conditions

Plate & Fin Evaporator Core

$79.59

Spectra Premium

Part # 94483

Fits with Conditions

HVAC Heater Core

$81.75

Four Seasons

Part # 73022

Confirmed Fit

HVAC Air Door Actuator

$53.34

Frequently Asked Questions

Do these parts fit my 1999 GMC K1500 Sierra SLE?

This page groups parts listed for the 1999 GMC K1500 Sierra SLE. 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 1999 GMC K1500 Sierra SLE?

We offer a wide selection of cooling system parts for the 1999 GMC K1500 Sierra SLE. 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 1999 GMC K1500 Sierra SLE?

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 1999 GMC K1500 Sierra SLE 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 1999 GMC K1500 Sierra SLE 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.

1999 GMC K1500(2,834 parts)

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1999 GMC K1500(2,834 parts)

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Other GMC K1500 Years

Sierra SLE · Cooling System (146 products)

CURVED RADIATOR HOSE, DAYCO

Aluminum Heater Core

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.

HVAC Air Door Actuator

Coolant Temperature Sensor

Gates 88-95 Chevrolet C & K Series Pickup V-8 5.7L Lower Molded Coolant Hose

gpd Water Outlet 8241411

Coolant Connector - Inlet/Outlet 3/4In. Tube x 5/8In. Hose

WATER PUMP-AUTO/LIGHT TRUCK, DAYCO

Radiator

Engine Water Pump and Fan Clutch

Engine Coolant Thermostat

Premium Engine Water Pump

Power Steering Return Line Hose Assembly

Compressor Mounted Cooling Fan Pressure Switch

Heater Hose Assembly

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.

Plate & Fin Evaporator Core

HVAC Heater Core

HVAC Air Door Actuator

Frequently Asked Questions

Do these parts fit my 1999 GMC K1500 Sierra SLE?

What cooling system options are available for my 1999 GMC K1500 Sierra SLE?

What brands make parts for the 1999 GMC K1500 Sierra SLE?

How fast do 1999 GMC K1500 Sierra SLE parts ship?

What warranty do your 1999 GMC K1500 Sierra SLE parts come with?