Replace Part Number:
12551933 12558177 12558178 12573460 12585673 12611384 12612350 12617944 12622033 126302 12630223 12633904 12637683 12639249 890604 89060436 BTR73450 T598129

Fit for:
Fit Car model:
Compatible with GMC Chevrolet LS1 LS6 LQ4 LQ9 4.8L 5.3L 5.7L 6.0L
These gaskets can also be used with LS3, LS2, and 6.0L iron blocks, as well as 4.8L/5.3L and LS1/LS6 applications,the default bore is 4.09 "
Also Fits:
Engine Details
Compatible with GMC CAR 325/5.3L OHY 8 16V"C" GM 3.780" Bore
Compatible with GMC TRUCK, VAN, SUV 293/4.8L OHV V8 16V GM 3.780" Bore
Compatible with GMC TRUCK，VAN，SUY 325/53L OHV V8 16V GM 3.780"Bore
Compatible with HUMMER TRUCKVAN, SUV 325/5.3L OHV V8"L,P”GM 95.94mm Bore
Compatible with ISUZU TRUCK，VAN, SUV 5328/53L OHV V8 16VPM' GM 96.00mm Bore
Compatible with SAAB TRUCK,VAN,SUV 5326/5.3L OHV V8 16VM"GM 96.00mm Bore

Note：
05-09 Premium.1.5 / 1.5 /3.0mm.
99-13 Premiumn.1.5 / 1.5 /3.0mm.
99-13 Premium. 1.5 / 1.5 /3.0mm
08-10 Premium.1.5 15 /3.0mm
03-06 Premium. 1.5 / 1.5 /3.0mm.
05-09 Premium.1.5 / 15 /3.0mm.

Package include:
(1) Gen III Valley Cover Gasket 12558178
(2) LS1/LS2/LS3 Header Gasket
(1) LS Oil Pan Gasket
(2) LS Water Pump Gasket
(1) LS Front Cover Gasket
(2) LS Valve Cover Gasket
(1) LS Damper Seal
(1) LS Rear Cover Gasket
(1) Rear Main Seal
(4) Water Crossover/Block Off Gaskets 12551933
(1) Oil Filter Adapter Bypass Gasket 12611384
(2) Knock Sensor Grommet 12558177
(2) Multi-Layer Steel (MLS) Head Gaskets for LS9 engines
(1)Bolt kit
(1) Piston Rings Set
(1) Main Bearings & Connecting Rod Bearings