Thermostat & Housing for 1999 GMC Sierra 1500
No.
Part # / Description / Price
Price
1
Acdelco™ Radiator 
GM
GM Description: All models. 3.4l. Trans Oil Cooler. Stamped #leh,dbp,car,ajt. Standard.
1
Radiator GM
GM Description: All models. 4.3l. Auto trans. Manual trans. With oil cooler. Lightweight; the radiators have a positive heat transfer to weight ratio
Corrosion-resistant aluminum designed core helps optimize the radiators long lasting service life
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
3
Radiator Insulator GM
GM Positions: Right
Description: 5.3l, 6.0l. 6.6L turbo diesel. 8.1L gas. 4.3L. Gas engine. 6.2L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $39.25
$26.85
MSRP $39.25
$26.85
4
Passenger Side Radiator Air Baffle GM
GM Positions: Right
Description: 4.3L. Inner, without rear ac. Gas engine. Helps properly direct airflow
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $59.59
$40.93
MSRP $59.59
$40.93
5
Driver Side Radiator Air Baffle GM
GM Positions: Left
Description: Inner, without rear ac. 4.3L. Gas engine. Helps properly direct airflow
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $65.80
$45.19
MSRP $65.80
$45.19
6
Multi-Purpose Clip GM
GM Positions: Right
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $7.40
$5.39
MSRP $7.40
$5.39
7
Upper Radiator Air Baffle GM
GM Notes: PARTS: Part includes belt routing and A/C caution label.
Description: 4.8, 5.3 & 6.0L, gmc. 6.6L turbo diesel, gmc. 8.1L gas, gmc. Avalanche. 4.3L, gmc. Without Escalade. Helps properly direct airflow
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
9
Radiator Support Baffle GM
GM Description: Without rear ac, 1500. 4.3L. Type 1, 1/2 ton. 4.8, 5.3 & 6.0L. without heavy duty. Helps properly direct airflow
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
13
Radiator Surge Tank GM
GM Description: 4.3L. 8.1L. 6.0L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
14
15 P.S.I. Radiator Surge Tank Cap GM
GM Description: Helps seal and regulate cooling pressure in your vehicle's radiator surge tank
MSRP $25.54
$15.20
MSRP $25.54
$15.20
18
Engine Coolant Thermostat GM
GM Description: S-series. 4.3l. 6 cylinder, with high output. Astro, Safari. Cpi, mpi. All models. Express, savana. 2003-14. Silverado, sierra. 4.3l. Incl.Gasket. 1/2, 3/4 & 1 ton, 1996 new style, 4.3, 5.0, 5.7L. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature
MSRP $56.02
$31.93
MSRP $56.02
$31.93
18
Acdelco™ Engine Coolant Thermostat GM
GM Description: S-series. 4.3l. Incl.Gasket. 6 cylinder, with high output. Astro, Safari. Cpi, mpi. Express, savana. All models. 2003-14. Silverado, sierra. 4.3l. 1/2, 3/4 & 1 ton, 1996 new style, 4.3, 5.0, 5.7L.
19
Engine Coolant Water Outlet GM
GM Description: All models. 4.3l. Silverado, sierra. 4.3l. Thick base helps prevent leaks by minimizing warpage
Leak-resistant Neoprene O-ring seal
Helps your cooling system function properly
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
MSRP $122.18
$67.81
MSRP $122.18
$67.81
19
Acdelco™ Engine Coolant Thermostat Housing GM
GM Description: All models. 4.3l. Silverado, sierra. 4.3l.