Engine Assembly-Oil Pump,Pan & Related Parts fit your 2003 Chevrolet Trailblazer EXT 2WD

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2003 Chevrolet Trailblazer EXT 2WD

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Vehicle Options

4-Speed Automatic Transmission, 4L60-E, Electronic; Trailblazer 4 Door EXT

Vehicle Options

4-Speed Automatic Transmission, 4L60-E, Electronic; Trailblazer 4 Door EXT

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Frames, Springs, Shocks, Bumpers

Front Axle, Front Suspension, Steering

Front End Sheet Metal, Heater

Fuel System, Exhaust, Emission System

Maintenance Parts, Fluids, Capacities, Electrical Connectors

Rear Body Structure, Moldings & Trim, Cargo Stowage

Starter, Generator, Ignition, Electrical, Lamps

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Part No. & Part Description

Price & Qty.

Part No. &
Part Description

12612350
GASKET, Engine Oil Pan, GASKET,OIL PAN(PART OF 400)
$73.70 $44.54
1
Add To Cart

SEAL, Engine Oil Pan Drain Plug
12616850
SEAL, OIL PAN DRAIN PLUG(O RING)(PART OF 400,404)(DIAMETER 19.39)
Fitting Vehicle Options: ST1(LL8)
$7.35 $4.46
1
Add To Cart
12616850
SEAL, OIL PAN DRAIN PLUG(O RING)(PART OF 400,902)(DIAMETER 19.39)
- Fitting Vehicle Options: ST1(LM4)
$7.35 $4.46
1
Add To Cart
3536966
SEAL, OIL PAN DRAIN PLUG(O RING)(PART OF 400,902)(20.74MM OUTSIDE DIAMETER)
- Fitting Vehicle Options: ST1(LM4,M30)
$12.60
1
Add To Cart

12584922
SEAL, Engine Oil Pump Cover, SEAL,OIL PUMP(O RING)(PART OF 407)(ORANGE)(INSIDE DIAMETER=19.63 T=4.32)(TEFLON COATED)
$11.90 $6.82
1
Add To Cart

89060436
SEAL KIT, Engine Rear Main Bearing, SEAL KIT,CRANKSHAFT REAR OIL(PART OF 518)(REVERSE LIP SEAL,INCLUDE INSTRUCTION SHEET)
$34.84 $22.14
1
Add To Cart

FILTER, Engine Oil Filter
19210285
FILTER, OIL
Fitting Vehicle Options: ST1(LL8)
Replaced By: 12731179
$10.60 $5.91
1
Add To Cart
19210283
FILTER, OIL(DURAGUARD)
- Fitting Vehicle Options: ST1(LM4)
- Replaced By: 12731172
$9.56 $5.33
1
Add To Cart
25329389
FILTER, OIL(ULTRAGUARD GOLD)
- Fitting Vehicle Options: ST1(LM4)
- Replaced By: 19391149
$18.46 $10.29
1
Add To Cart

12639249
GASKET, Engine Rear Main Bearing, GASKET,CRANKSHAFT REAR OIL SEAL HOUSING(PART OF 518)
$60.16 $40.32
1
Add To Cart

SEAL, Engine Oil Level
24504031
SEAL, OIL LEVEL INDICATOR(O RING)(PART OF 424)(6.07 INSIDE DIAMETER; 1.78 DIAMETER)
Fitting Vehicle Options: ST1(LL8)
$17.88 $10.80
1
Add To Cart
24504031
SEAL, OIL LEVEL INDICATOR TUBE(O RING)(PART OF 423)(6.07 INSIDE DIAMETER; 1.78 DIAMETER)
- Fitting Vehicle Options: ST1(LL8)
$17.88 $10.80
1
Add To Cart
24504031
SEAL, OIL LEVEL INDICATOR TUBE(O RING)(PART OF 418)(6.07 INSIDE DIAMETER; 1.78 DIAMETER)
- Fitting Vehicle Options: ST1(LM4)
$17.88 $10.80
1
Add To Cart
24504031
SEAL, OIL LEVEL INDICATOR TUBE(O RING)(PART OF 420)(6.07 INSIDE DIAMETER; 1.78 DIAMETER)
- Fitting Vehicle Options: ST1(LM4)
$17.88 $10.80
1
Add To Cart

BOLT, Engine Rear Main Bearing
12556127
BOLT, CRANKSHAFT REAR OIL SEAL HOUSING(PART OF 518)(M8X1.25X24)(0.056)
Fitting Vehicle Options: ST1(LM4)
$5.21 $3.15
1
Add To Cart
12556127
BOLT, CRANKSHAFT REAR OIL SEAL HOUSING(PART OF 518)(M8X1.25X24)(0.056)
- Fitting Vehicle Options: S1(LM4,M30)
- Require Quantity: 12
- Package Quantity: 1
$5.21 $3.15
1
Add To Cart

12573460
PLUG, Engine Oil Distribution, PLUG,ENGINE BLOCK OIL GALLERY(INCLUDES 110)(15.68MM DIAMETER)(INCLUDES O-RING SEAL(N.S.S.)
$11.09 $6.69
1
Add To Cart

12378521
SEALANT, Maintenance Products, SEALANT,ROOM TEMPERATURE VULCANIZING ENGINE SILICONE 5.3OZ CART(OIL PAN)

12558759
RIVET, Engine Oil Pan, RIVET,OIL PAN GASKET(PART OF 400)
- Require Quantity: 02
- Package Quantity: 1
$7.02 $4.24
1
Add To Cart

BOLT, Engine Front Cover
11588718
BOLT, ENGINE FRONT COVER(-HEX FLANGED HEAD,M6X1X50,22.7 THREAD,14.2 OUTSIDE DIAMETER,8.8,GMW3359,MAT POINT)(M6X1X50)(TOGETHER WITH 19333511 ADHESIVE)
Require Quantity: 02
Package Quantity: 1
$9.59 $6.09
1
Add To Cart
24577504
BOLT, ENGINE FRONT COVER(M5X0.8-6G)
$5.40 $3.41
1
Add To Cart

12635957
SWITCH, Engine Oil Pressure/Temperature, SWITCH,ENGINE OIL PRESSURE
$89.49 $45.11
1
Add To Cart

12556582
SPROCKET, Engine Crankshaft/Timing, SPROCKET,CRANKSHAFT
$47.39 $28.63
1
Add To Cart

12611129
DEFLECTOR, Engine Oil Pan, DEFLECTOR,CRANKSHAFT OIL
$63.81 $36.66
1
Add To Cart

BOLT, Engine Oil Pan
11516480
BOLT, OIL PAN COVER(PART OF 400)(M6X1X25-10MM SOCKET)
Fitting Vehicle Options: ST1(LM4)
$12.60
1
Add To Cart
12554990
BOLT, OIL PAN(PART OF 400)(M6X1.0X136)
- Fitting Vehicle Options: ST1
- Require Quantity: 02
- Package Quantity: 1
$7.39 $4.46
1
Add To Cart

PLUG, Engine Oil Pan Drain
11562588
PLUG, OIL PAN DRAIN(INCLUDES 405)(PART OF 400)(M12X1.75X25)(W/SEAL)(EXCEPT MAGNET)(W/HEXAGON HEAD)
Fitting Vehicle Options: ST1(LL8)
$12.40 $7.48
10
Add To Cart
11562588
PLUG, OIL PAN DRAIN(PART OF 400)(INCLUDES 903)(M12X1.75X25)(W/SEAL)(EXCEPT MAGNET)(W/HEXAGON HEAD)
- Fitting Vehicle Options: ST1(LM4,M30)
$12.40 $7.48
10
Add To Cart

24100119
SPRING, Engine Oil Pressure, SPRING,OIL PRESSURE RELIEF VALVE(PART OF 512)
$10.78 $6.85
1
Add To Cart

FITTING, Engine Oil Filter
12552357
FITTING, OIL FILTER(PART OF 400)(13/16 X 16 UNC-M20X1.5 SAE 12L14)
Fitting Vehicle Options: ST1(LM4)
$16.83 $10.69
1
Add To Cart
24575062
FITTING, OIL FILTER
- Fitting Vehicle Options: ST1(LL8)
$12.59 $7.99
1
Add To Cart

VALVE, Engine Oil Filter
25014612
VALVE, OIL FILTER BYPASS(W/O VAPOR SEPARATOR)(OPENING PRESSURE 21 PSI NOMINAL)(PART HAS A 16.10MM MAX OUTSIDE DIAMETER & FITS A 15.84 HOLE IN BLOCK)
Fitting Vehicle Options: ST1(LL8)
$9.58 $5.34
1
Add To Cart
12684294
VALVE, OIL FILTER BYPASS(PART OF 400)
- Fitting Vehicle Options: S1(LM4,M30), ST1(LM4)
$10.64 $5.93
1
Add To Cart

24576940
SEAL, Engine Front Cover, SEAL,ENGINE FRONT COVER(PART OF 512)(PLUG)

SEAL, Engine Oil Pump
12575550
SEAL, OIL PUMP SUCTION PIPE(HAS FLAT GASKET SEAL.FOR 1ST DESIGN SEE 12557752)(PART OF 406)
Fitting Vehicle Options: ST1(LL8)(2ND DES)
$30.00 $19.07
5
Add To Cart
12557752
SEAL, OIL PUMP SUCTION PIPE(PART OF 406)(BLUE)(1.724)(W/ 0-RING SEAL PART OF PICK UP TUBE.FOR 2ND DESIGN SEE 12575550)
- Fitting Vehicle Options: ST1(LL8)(1ST DES)
$8.57 $5.17
1
Add To Cart

12710303
PUMP, Engine Oil Pump, PUMP,OIL(INCLUDES 408,409,412-416)
$176.86 $101.57
1
Add To Cart

COVER, Engine Front Cover

12628565
COVER, ENGINE FRONT(W/OIL PMP)(INCLUDES SEAL(FRONT COVER),GEARS, PLUG AND RELIEF VALVE)(INCLUDES 411-416,418)
12628565
COVER, ENGINE FRONT(W/OIL PMP)(INCLUDES SEAL(FRONT COVER),GEARS, PLUG AND RELIEF VALVE)(INCLUDES 411-416,418)(2ND DESIGN COVER FOR USE WITH FLAT SEAL AT OIL PUMP PICK-UP TUBE/SCREEN.MUST USE WITH 2ND DESIGN SCREEN P/N 12589061,HAVING FLAT SEAL.")

TUBE, Engine Oil Level
12590589
TUBE, OIL LEVEL INDICATOR(INCLUDES 905)(INCLUDE SEAL)
Fitting Vehicle Options: ST1(LL8)
$99.73 $49.45
1
Add To Cart
12567172
TUBE, OIL LEVEL INDICATOR(INCLUDES 421)
- Fitting Vehicle Options: ST1(LM4)
$82.99 $52.75
1
Add To Cart

GASKET, Engine Oil Filter

12567653
GASKET, OIL FILTER PIPE ADAPTER(LOWER)(PART OF 400)
$9.64 $5.37
1
Add To Cart
12567654
GASKET, OIL FILTER PIPE ADAPTER(SIDE)(PART OF 400)

INDICATOR, Engine Oil Level
12580810
INDICATOR, OIL LEVEL(INCLUDES 903)
Fitting Vehicle Options: ST1(LL8)
$44.32 $28.16
1
Add To Cart
12575957
INDICATOR, OIL LEVEL(INCLUDES 417)
- Fitting Vehicle Options: ST1(LM4)
$57.22 $36.37
1
Add To Cart

SCREEN, Engine Oil Pump
12565692
SCREEN, OIL PUMP(W/SUCTION PIPE)(INCLUDES 406)(INCLUDES PIPE,SCREEN,SEAL)
Fitting Vehicle Options: ST1(LM4)
$106.63 $67.77
1
Add To Cart
12570894
SCREEN, OIL PUMP(W/SUCTION PIPE)(INCLUDES 407,419,904,906)(W/ -O-RING SEAL PART OF PICK UP TUBE.FOR 2ND DESIGN SEE 12589061)
- Fitting Vehicle Options: ST1(LL8)(1ST DES)
12589061
SCREEN, OIL PUMP(W/SUCTION PIPE)(INCLUDES 407,419,904,906)(HAS FLAT GASKET SEAL.FOR 1ST DESIGN SEE 12570894)
- Fitting Vehicle Options: ST1(LL8)(2ND DES)

PAN, Engine Oil
12584321
PAN, OIL(NOTES:1)(INCLUDES 404,405,900)(NEW PAN LESS BAFFLES,GASKET,WHICH ARE NOT REQUIRED)
Fitting Vehicle Options: ST1(LL8)
$348.26 $220.43
1
Add To Cart
12613437
PAN, OIL(INCLUDES:PLUG,DRAIN/VALVE,BYPASS/BAFFLE,OIL PAN/GASKET,OIL FILTER PIPE ADAPTER/BOLT,OIL PAN/PLUG,OIL LEVEL)(INCLUDES 426-428,436,438,439,901-912)(USE W/PF48 OIL FILTER)
- Fitting Vehicle Options: ST1(LM4)
$476.27 $301.33
1
Add To Cart

12639250
HOUSING, Engine Rear Main Bearing, HOUSING,CRANKSHAFT REAR OIL SEAL(INCLUDES 41,517,519)
$98.60 $56.65
1
Add To Cart

PLUG, Engine Oil Pan
12565092
PLUG, OIL PAN HOLE(PART OF 400)(MOUNTS IN OIL PAN)
Fitting Vehicle Options: ST1(LL8)
$5.83 $3.70
24229746
PLUG, OIL PAN HOLE(PART OF 400)
- Fitting Vehicle Options: ST1(LL8)
- Require Quantity: 02
- Package Quantity: 1
92061150
PLUG, OIL PAN HOLE(TRANSFER TUBE)(PART OF 400)
- Fitting Vehicle Options: ST1(LM4)

24577281
BOLT, Engine Oil Pump, BOLT,OIL PUMP(M6X1.0X23 THREAD..MATERIAL:GM500M(9.8)STEEL..FINISH:PER GM4435M,CODE G.)(PART OF 512)(M6X1.0X22)
- Require Quantity: 07
- Package Quantity: 1

11514596
NUT, HEX FLANGED HEAD,M8X1.25,17.9 OUTSIDE DIAMETER,738 THICK,13MM HEXAGON,10, PHOSPHATE ZINC ORGANIC - FLAKE(OIL PAN)(8.915)
- Require Quantity: 02
- Package Quantity: 1
$12.60
1
Add To Cart

11588714
BOLT, HEX FLANGED HEAD,M6X1X30,22.7 THREAD,14.2 OUTSIDE DIAMETER,8.8,GMW3359, M-POINT.(ENGINE FRONT COVER)
- Require Quantity: 11
- Package Quantity: 1
$9.71 $6.18
1
Add To Cart

11515758
BOLT, HEX FLANGED HEAD,M8X1.25X30,28THD,18 O.D.,MACHINE POINT,10.9,7114M(PART OF 400)
- Fitting Vehicle Options: ST1
- Require Quantity: 13
- Package Quantity: 10
$1.86 $1.12
10
Add To Cart

11515758
BOLT, HEX FLANGED HEAD,M8X1.25X30,28THD,18 O.D.,MACHINE POINT,10.9,7114M(OIL PUMP)
- Fitting Vehicle Options: ST1
- Require Quantity: 04
- Package Quantity: 10
$1.86 $1.12
10
Add To Cart

11562426
BOLT, HEX FLANGED HEAD,M6X1X25,18 THREAD,14.2 OUTSIDE DIAMETER, 10.9 STEEL GMW3359(PART OF 406)
$10.85 $6.90
1
Add To Cart

11609746
NUT, HEX FLANGED HEAD,M8X1.25,8.9THK,17.6 O.D.,10 STEEL,GMW3200, PREVENT TORQUE(OIL PUMP SUCTION PIPE)
- Fitting Vehicle Options: ST1
$4.42 $2.67
12
Add To Cart

11609746
NUT, HEX FLANGED HEAD,M8X1.25,8.9THK,17.6 O.D.,10 STEEL,GMW3200, PREVENT TORQUE(CRANKSHAFT OIL DEFLECTOR)
- Fitting Vehicle Options: ST1
- Require Quantity: 08
- Package Quantity: 12
$4.42 $2.67
12
Add To Cart

11516327
BOLT, HEX FLANGED HEAD,M10X1.5X25,22.30 O.D.,HEADER POINT,10.9,7112M(OIL LEVEL INDICATOR TUBE)
- Fitting Vehicle Options: ST1
$4.42 $2.81
10
Add To Cart

11516521
BOLT, HEX FLANGED HEAD M6X1X20,9.8,7114M,DOG POINT,14.2 OUTSIDE DIAMETER(OIL PUMP SUCTION PIPE)
- Fitting Vehicle Options: ST1
$7.39 $4.69
1
Add To Cart

11517903
STUD, STRAIGHT,M8X1.25X27.5,M8X1.25X27.5,58.5 TL,9.8,7114M,MACHINE(LH-POSITION #5, RH-POSITION #1)
- Require Quantity: 02
- Package Quantity: 1
$5.42 $3.45
1
Add To Cart

9427693
PLUG, CUP 5/8, CORROSION RESISTANT STEEL(ENGINE BLOCK OIL GALLERY)(1.531)
- Fitting Vehicle Options: ST1
$7.20 $4.57
1
Add To Cart

11517692
BOLT-HEX FLANGED HEAD, M6X1X25,21.5 THREAD,14.2 OUTSIDE DIAMETER,9.8,6280M,MACHINE,6124M,HEADER POINT(PART OF 406)
$4.81 $3.06
1
Add To Cart

11519133
BOLT, SELF TAP,M6X1X20,13.2 O.D.(PART OF 900)
- Require Quantity: 07
- Package Quantity: 1
$12.46 $5.00
1
Add To Cart

11519133
BOLT, SELF TAP,M6X1X20,13.2 O.D.(BOLT,OIL PAN BAFFLE)(PART OF 400)
- Fitting Vehicle Options: ST1
- Require Quantity: 07
- Package Quantity: 1
$12.46 $5.00
1
Add To Cart

11588719
BOLT, HEX FLANGED HEAD,M6X1X60,18MM THREAD,14.2 O.D.,8.8,3359GMW(OIL PAN)
- Require Quantity: 02
- Package Quantity: 1
$13.05
1
Add To Cart

11609473
STUD, HEX FLANGED HEAD,6X1X25,6X1X16,14.2 OUTSIDE DIAMETER,47.6 TL,9.8,6280M,HEADER-PTS(OIL LEVEL INDICATOR TUBE)
$10.89 $6.92

11519681
BOLT, HEX FLANGED HEAD,M8X1.25X34,25 THREAD,18 O.D.,9.8,GMW3359(OIL PAN)
- Require Quantity: 20
- Package Quantity: 1

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 2003 Chevrolet Trailblazer EXT 2WD parts. Parts like Engine Assembly-Oil Pump,Pan & Related Parts are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 4.2L, 8 Cyl 5.3L. Model Code: 4 DOOR EXT.