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- 2007 Sierra 3500HD III (GMT900) Crew Cab Long Box
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- V8 engine bay with alternator, fluid reservoir, and multiple hose connections
GMC2007 GMC Sierra 3500HD III (GMT900) Crew Cab Long BoxClose-up view inside an engine bay showing a V8 engine with an alternator, multifaceted hose and wire connections, and a fluid reservoir, highlighting the complexity of a heavy-duty pickup truck's powertrain.
