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Heater
Front Left Side Top
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99374

Part Specifications

Core Material
Aluminum
Tank Material
Aluminum
Height
7-5/8 in.
Width
7-7/16 in.
Thickness
1-5/8 in.
Inlet
3/4 in. Diameter
Outlet
3/4 in. Diameter
Pop. Code
B

* Part finish and color may vary

Related Documents

Guides
Cooling System Training Manual (FR)
Guides
Cooling System Training Manual (EN)
Technical
Heater Core Replacement (EN | ES | FR)
Warranties
Heater Warranty (EN | ES | FR)

Applications

Filters

GMC Sierra 1500 Base V8 5.3L

Year Fuel Fuel Del. ASP. Eng. VIN Eng. Desg. CC CID
2005 FLEX FI N Z L59 5328 325
2005 GAS FI N B L33 5328 325
2005 GAS FI N T LM7 5328 325
2004 FLEX FI N Z L59 5328 325
2004 GAS FI N T LM7 5328 325
2003 FLEX FI N Z L59 5328 325
2003 GAS FI N T LM7 5328 325

GMC Sierra 1500 Base V6 4.3L

Year Fuel Fuel Del. ASP. Eng. VIN Eng. Desg. CC CID
2004 GAS FI N X LU3 - 262
2003 GAS FI N X LU3 - 262

GMC Sierra 1500 Base V8 4.8L

Year Fuel Fuel Del. ASP. Eng. VIN Eng. Desg. CC CID
2004 GAS FI N V - - 294
2003 GAS FI N V - - 294

GMC Sierra 1500 Base V8 6.0L

Year Fuel Fuel Del. ASP. Eng. VIN Eng. Desg. CC CID
2004 GAS FI N N LQ9 5967 364

GMC Sierra 1500 Denali V8 6.0L

Year Fuel Fuel Del. ASP. Eng. VIN Eng. Desg. CC CID
2006 GAS FI N N LQ9 5967 364
2005 GAS FI N N LQ9 5967 364
2004 GAS FI N N LQ9 5967 364
2004 GAS FI N U LQ4 5967 364
2003 GAS FI N U LQ4 5967 364

GMC Sierra 1500 Hybrid V8 5.3L

Year Fuel Fuel Del. ASP. Eng. VIN Eng. Desg. CC CID
2006 FULL HYBRID EV-GAS (FHEV) FI N T LM7 5328 325
2005 FULL HYBRID EV-GAS (FHEV) FI N T LM7 5328 325

GMC Sierra 1500 SL V6 4.3L

Year Fuel Fuel Del. ASP. Eng. VIN Eng. Desg. CC CID
2006 GAS FI N X LU3 - 262
2003 GAS FI N X LU3 - 262

GMC Sierra 1500 SL V8 4.8L

Year Fuel Fuel Del. ASP. Eng. VIN Eng. Desg. CC CID
2006 GAS FI N V - - 294

GMC Sierra 1500 SL V8 5.3L

Year Fuel Fuel Del. ASP. Eng. VIN Eng. Desg. CC CID
2006 FLEX FI N Z L59 5328 325
2006 GAS FI N B L33 5328 325
2006 GAS FI N T LM7 5328 325