fuel pump

Currently looking for a Fuel Pump for 2009 Hummer H3T Alpha/ Part # through GM is 19206830. Cannot locate one anywhere. Have tried Summitt, local dealers etc. Any help would be greatly appreciated.

Hi guys, wondering if anyone can help me diagnose this fuel problem. Symptoms: Rough idle / stops accelerating and backfires frequently I've been driving it like this for 2 weeks, it only stalled once, but the above symptoms are always there. Pulling these codes: P0193 - Fuel Rail Pressure...