Engine Assembly-Manifolds & Fuel 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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Brakes, Rear Axle, Propeller Shaft, Wheels, Tires

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Cooling System, Grille, Oil System

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

Transmission - Automatic

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Recommended

Part No. & Part Description

Price & Qty.

Part No. &
Part Description

SENSOR, Distributor (also Knock Sensor)
12589867
SENSOR, KNOCK
Require Quantity: 02
Package Quantity: 1
$131.06 $63.12
1
Add To Cart
19420372
SENSOR, CAMSHAFT POSITION(INCLUDES 518)
- Replaced By: 19420911
$123.83 $59.64
1
Add To Cart

GASKET, Manifold to Cylinder Head
12617944
GASKET, EXHAUST MANIFOLD
Require Quantity: 02
Package Quantity: 1
$35.00 $16.86
1
Add To Cart
12558178
GASKET, ENGINE BLOCK VALLEY COVER(PART OF 511)
$43.39 $27.57
1
Add To Cart

GASKET KIT, Manifold to Cylinder Head
89060413
GASKET KIT, INTAKE MANIFOLD(DOES NOT INCLUDE EGR VALVE PIPE GASKET)
Fitting Vehicle Options: ST1(LM4)
$151.78 $87.21
1
Add To Cart
89017871
GASKET KIT, INTAKE MANIFOLD
- Fitting Vehicle Options: ST1(LL8)
$31.15 $18.83
1
Add To Cart
88890561
GASKET KIT, EXHAUST MANIFOLD
- Fitting Vehicle Options: ST1(LL8)
$18.84 $11.96
1
Add To Cart

17113556
TUBE, Fuel Injection, TUBE,FUEL PRESSURE REGULATOR VACUUM(1-90 DEGREE CONNECTOR)
$44.64 $21.50
1
Add To Cart

SENSOR, Computer Control Sensors
12614973
SENSOR, MAP(INCLUDES SEAL)(INCLUDES 505)(MATING CONNECT W/LEADS USE 88987997)
Fitting Vehicle Options: ST1(LM4)
Replaced By: 19418808
$143.62 $72.39
1
Add To Cart
19418807
SENSOR, MAP(W/SEAL)(INCLUDES 22)
- Fitting Vehicle Options: ST1(LL8)
$147.51 $74.35
1
Add To Cart

BOLT, Intake & Exhaust Manifold
11588352
BOLT, INTAKE MANIFOLD(W/SPACER)(PART OF 8)(M6X1X48)
Fitting Vehicle Options: ST1(LL8)
Require Quantity: 10
Package Quantity: 1
$7.38 $4.69
1
Add To Cart
17122601
BOLT, INTAKE MANIFOLD
- Fitting Vehicle Options: ST1(LM4)
- Require Quantity: 10
- Package Quantity: 1
$14.44 $9.18
1
Add To Cart
11547135
BOLT, EXHAUST MANIFOLD FLANGE
- Require Quantity: 12
- Package Quantity: 1
$9.96 $6.34
1
Add To Cart

12574660
TUBE, Engine Crankcase Ventilation, TUBE,PCV(INCLUDES 509)(INCLUDE VALVE)
$64.90 $34.40
1
Add To Cart

SEAL, Computer Control Sensors
16194007
SEAL, MAP SENSOR(PART OF 21)
Fitting Vehicle Options: ST1(LL8)
$9.70 $4.67
1
Add To Cart
16194007
SEAL, MAP SENSOR(PART OF 504)
- Fitting Vehicle Options: ST1(LM4)
$9.70 $4.67
1
Add To Cart

HOSE, Engine Crankcase Ventilation
12575660
HOSE, PCV(DIRTY AIR)(PCV INTAKE MANIFOLD TO CYL HEAD PORTION)(INCLUDES 24)
Fitting Vehicle Options: ST1(LL8)
$18.86 $10.51
1
Add To Cart
12556932
HOSE, PCV
- Fitting Vehicle Options: ST1(LM4)
$82.66 $34.72
1
Add To Cart

12558177
GROMMET, Distributor (also Knock Sensor), GROMMET,KNOCK SENSOR(PART OF 511)
- Require Quantity: 02
- Package Quantity: 5
$14.97 $9.51
5
Add To Cart

12575463
GASKET, Multi Port Fuel Injection Throttle Body, GASKET,THROTTLE BODY(PART OF 8)
$9.32 $4.94
1
Add To Cart

24577193
GASKET, Emission System, GASKET,SECONDARY AIR INJECTION PIPE COVER
$26.50 $14.05
1
Add To Cart

17113561
SEAL, Multi Port Fuel Injection Throttle Body, SEAL,THROTTLE BODY

SHIELD, Exhaust Manifold
12597916
SHIELD, EXHAUST MANIFOLD HEAT
Location: Passenger Side
Fitting Vehicle Options: ST1(LM4)
$60.89 $40.74
1
Add To Cart
12587963
SHIELD, EXHAUST MANIFOLD HEAT
- Fitting Vehicle Options: ST1(LL8)
12597917
SHIELD, EXHAUST MANIFOLD HEAT
- Location: Driver Side
- Fitting Vehicle Options: ST1(LM4)

MANIFOLD, Engine Exhaust Manifold
12600527
MANIFOLD, EXHAUST
Location: Passenger Side
Fitting Vehicle Options: ST1(LM4)
$195.23 $130.86
1
Add To Cart
12600526
MANIFOLD, EXHAUST
- Location: Driver Side
- Fitting Vehicle Options: ST1(LM4)
$178.09 $112.68
88890560
MANIFOLD, EXHAUST(INCLUDES 10,14)
- Fitting Vehicle Options: ST1(LL8)

12568580
BODY, Fuel Injection Air Meter, BODY,THROTTLE(W/THROTTLE ACTUATOR)
$644.64 $357.78

10228350
BOLT, Exhaust Manifold, BOLT,EXHAUST MANIFOLD HEAT SHIELD(M6X1X6.5 HEXAGON FLANGE)
- Require Quantity: 03
- Package Quantity: 1
$15.93 $10.12
1
Add To Cart

24577539
STUD, Engine Exhaust Manifold, STUD,EXHAUST MANIFOLD HEAT SHIELD(PART OF 15)
- Require Quantity: 04
- Package Quantity: 1
$9.41 $5.98
1
Add To Cart

12575742
COVER, Engine Fuel Intake Manifold, COVER,ENGINE BLOCK VALLEY(INCLUDES 512,513,527)
$515.95 $326.44

11517674
STUD, Emission System, STUD,SECONDARY AIR INJECTION PIPE COVER(1.153)
- Require Quantity: 02
- Package Quantity: 1
$6.73 $4.50
1
Add To Cart

12578463
STOP, Fuel Injection, STOP,FUEL INJECTION FUEL RAIL
$31.58 $16.74
1
Add To Cart

1997279
VALVE, Fuel Tank Evaporator/Purge Control, VALVE,EVAP EMISSION CANISTER PURGE SOLENOID(LOCATED AT INTAKE MANIFOLD)(INCLUDES SEAL)(INCLUDES 534)(MATING CONNECT W/LEADS USE 13585860)
$74.80 $36.99
1
Add To Cart

MANIFOLD, Engine Fuel Intake Manifold
89017800
MANIFOLD, INTAKE(SERVICE)("INCLUDES MANIFOLD BOLTS,GASKETS, & COVER;DOES NOT INCLUDE THROTTLE BODY & MAP SENSOR")(INCLUDES 5,7,23)
Fitting Vehicle Options: ST1(LL8)
$495.64 $292.47
1
Add To Cart
89017366
MANIFOLD, INTAKE
- Fitting Vehicle Options: ST1(LM4)

10490666
SEAL, Fuel Tank Evaporator/Purge Control, SEAL,EVAP EMISSION CANISTER PURGE SOLENOID VALVE(O RING)(PART OF 535)
$15.30 $8.11
1
Add To Cart

12601822
WIRE, Chassis Wiring, WIRE,KNOCK SENSOR(CONTAINS 1 CONNECT TO ENGINE HARNESS,2 CONNECT TO KNOCK SENSORS,2 GROMMET)
$82.89 $52.67
1
Add To Cart

12569017
CAP, Intake Manifold Vacuum, CAP,INTAKE MANIFOLD VACUUM FITTING(PART OF 8)

12571702
COVER, Emission System, COVER,SECONDARY AIR INJECTION PIPE

12572717
VALVE, Engine Crankcase, VALVE,PCV(PART OF 508)

12676059
INSULATOR KIT, Manifold to Cylinder Head, INSULATOR KIT,INTAKE MANIFOLD

15734741
CLAMP, Engine Crankcase Ventilation, CLAMP,PCV HOSE(PART OF 6)(18.4MM DIAMETER)(8.948)
$6.82 $4.57

24577587
RETAINER, Computer Control Sensors, RETAINER,MAP SENSOR

89017691
STUD, Multi Port Fuel Injection Throttle Body, STUD,THROTTLE BODY(STRAIGHT,M6X1.0X26.5,M6X1.0X10,46 TL,STEEL)
- Require Quantity: 03
- Package Quantity: 1
$23.31 $14.82

11609411
NUT, HEXAGON W/CONICAL WASHER,M6X1,5.7 THICK,16 OUTSIDE DIAMETER,9,GMW3200(EXHAUST MANIFOLD HEAT SHIELD)
- Require Quantity: 04
- Package Quantity: 10
$2.38 $1.51
10
Add To Cart

11515758
BOLT, HEX FLANGED HEAD,M8X1.25X30,28THD,18 O.D.,MACHINE POINT,10.9,7114M(PART OF 511)
- Require Quantity: 10
- Package Quantity: 10
$1.86 $1.12
10
Add To Cart

11561026
BOLT, HEX FLANGED HEAD,THREAD,14.2 OUTSIDE DIAMETER,9.8,GMW3200,MACHINE,HEADER POINT(FUEL INJECTOR)
- Require Quantity: 04
- Package Quantity: 1
$36.02 $22.89
1
Add To Cart

11609481
BOLT, HEX FLANGED HEAD,M8X1.25X33,23.9 THREAD,18 OUTSIDE DIAMETER,9.8,GMW3179W,ADH GM6194M(EXHAUST MANIFOLD)
- Require Quantity: 11
- Package Quantity: 15
$5.91 $3.76
15
Add To Cart

11515756
BOLT, HEX FLANGED HEAD, M8X1.25X20,17THD,18 O.D.,10.9,7114M(CAMSHAFT POSITION SENSOR)
$7.50 $4.53
10
Add To Cart

11515764
BOLT, HEX FLANGED HEAD,M10X1.5X20,18THD,22.3 O.D.,10.9,7114M(FUEL INJECTION FUEL RAIL STOP)
$23.61 $14.27
1
Add To Cart

11589264
STUD, STRAIGHT, M10X1.5X30, M10X1.5X16, 57 TL, STAINLESS STEEL(PART OF 15)
- Require Quantity: 03
- Package Quantity: 4
$13.37 $8.94
4
Add To Cart

11589264
STUD, STRAIGHT, M10X1.5X30, M10X1.5X16, 57 TL, STAINLESS STEEL(EXHAUST MANIFOLD PIPE)
- Require Quantity: 02
- Package Quantity: 4
$13.37 $8.94
4
Add To Cart

11517523
BOLT, HEX FLANGED HEAD,M6X1X45,17THD,14.2 O.D.,HEADER POINT,9.8,6280M(THROTTLE ACTUATOR CONTROL MODULE)
- Require Quantity: 04
- Package Quantity: 1
$18.54 $11.79
1
Add To Cart

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 2003 Chevrolet Trailblazer EXT 2WD parts. Parts like Engine Assembly-Manifolds & Fuel 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.