Part Type: A/C Accumulator. 2007 GMC Sierra 3500 Classic Engine: 6L V8 GAS Naturally Aspirated; EngineCode: LQ4; EngineVIN: U; without Rear A/C;. 2007 GMC Sierra 3500 Classic Engine: 8.1L V8 GAS Naturally Aspirated; EngineCode: L18; EngineVIN: G; without Rear A/C;.
