This is a brand new in the box Genuine GM OEM Oil Pan for the 2003-2006 5.3L Isuzu Ascender, Buick Rainier 04-07. This pan ships exactly as photographed.
GM has assigned multiple part numbers to this pan:
12597918
12579723a
12565687
12598154
12579203
12624620
12613437
Fits the Following Make/Models:
ENVOY 05-09 5.3L (Denali)
ENVOY XL 03-06 5.3L
ISUZU ASCENDER 03-06 5.3L
RAINIER 04-07 5.3L
SAAB 9-7X 05-09 8 cylinder
SSR 03-06
TRAILBLAZER 06-08 5.3L
TRAILBLAZER 06-08 6.0L
TRAILBLAZER EXT 03-05 5.3L
