Engine Assembly-Block & Related Parts fit your 2003 Chevrolet Blazer 2WD

Currently shopping for

2003 Chevrolet Blazer 2WD

Change Vehicle

Vehicle Options

6 Cyl 4.3L MFI, 90 DEG

Vehicle Options

6 Cyl 4.3L MFI, 90 DEG

Categories Close X

Currently selected

Engine

Other Categories

Body Mounting, Air Conditioning, Audio/Entertainment

Brakes

Brakes, Rear Axle, Propeller Shaft, Wheels, Tires

Cab And Body Structure, Mirrors, Doors, Trim, Seat Belts, Wipers

Cooling System, Grille, Oil System

Frames, Springs, Shocks, Bumpers, Fascias

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

Transmission - Manual

Parts Questions

Sort by:

Recommended

Part No. & Part Description

Price & Qty.

Part No. &
Part Description

SENSOR, Distributor (also Knock Sensor)

12596851
SENSOR, CRANKSHAFT POSITION(INCLUDES 742)(MATING CONNECT W/LEADS USE 13585316)
$153.20 $73.79
1
Add To Cart
21024981
SENSOR, KNOCK(STAMPED SIEMENS 21024981 OR 12570176)(MATING CONNECT W/LEADS USE 12085491)
$58.47 $30.98
1
Add To Cart

89017259
COVER KIT, Engine Front Cover, COVER KIT,ENGINE FRONT(SEE GROUP 00.000 "FRONT COVER & COOLING" FOR DETAILED ILLUSTRATED VIEW)(W/SEAL,GROMMET,BOLTS)(NOTE:COVER HAS BEAD OF SEALANT PRE-APPLIED.IF BEAD OF SEALANT IS DAMAGED,A NEW COVER IS REQUIRED.)
$150.84 $86.67
1
Add To Cart

BOLT, HEXAGON

11508476
BOLT, M8X1.25X25 9.8(DISTRIBUTOR CLA)
$3.55 $2.25
10
Add To Cart
9419033
BOLT, HEXAGON, 5/16-18 X 1 3/8(CAMSHAFT SPROCKET)
- Require Quantity: 03
- Package Quantity: 1
$10.35 $6.58
1
Add To Cart
9440024
BOLT, 7/16 -20 X 2 1/4"(CRANKSHAFT BALANCER)
$4.91 $3.12
10
Add To Cart
10225009
BOLT, CONNECT ROD(PART OF 128)(3/8-24 X 1 1/2)(0.623)
- Fitting Vehicle Options: S1(LU3,M50)
- Require Quantity: 02
- Package Quantity: 1
$5.77 $4.68
1
Add To Cart

12557583
BEARING, Engine Crankshaft Clutch Pilot, BEARING,CLUTCH PILOT(22.7MM INSIDE DIAMETER, 43.3MM OUTSIDE DIAMETER, 13 THICK)
$24.52 $12.99
1
Add To Cart

BOLT, Engine Flywheel
14088764
BOLT, FLYWHEEL(7/16-20 X 45/64)(0.685)
Fitting Vehicle Options: ST1(LU3,M30)
Require Quantity: 06
Package Quantity: 10
$3.68 $2.34
10
Add To Cart
12337973
BOLT, FLYWHEEL(7/16-20 X 31/32)
- Fitting Vehicle Options: ST1(LU3,M50)
- Require Quantity: 06
- Package Quantity: 10
$6.02 $3.84
10
Add To Cart

10224885
BALANCER, Engine Crankshaft And Camshaft Balancer, BALANCER,CRANKSHAFT(EXTERNAL)
$106.52 $61.22
1
Add To Cart

12555771
GASKET, Engine Rear Main Bearing, GASKET,CRANKSHAFT REAR OIL SEAL HOUSING(REPLACES 12555714)
$10.96 $6.96
1
Add To Cart

10105912
BOLT, Engine Camshaft, BOLT,CAMSHAFT RETAINER(1/4-20X5/8,7/16 THICK)(FLAT)
- Require Quantity: 02
- Package Quantity: 10
$5.69 $3.61
10
Add To Cart

12618626
BEARING KIT, Engine Crankshaft And Camshaft Balancer, BEARING KIT,BALANCER SHAFT(INCLUDES REAR BEARING,INSTRUCTION SHEET & SPACER)
$79.72 $50.67
1
Add To Cart

3866766
NUT, Engine Connecting Rod Bolt, NUT,CONNECT ROD(PART OF 128)(3/8-24)(HEXAGON)
- Require Quantity: 12
- Package Quantity: 10
$2.88 $1.83
10
Add To Cart

3991408
GEAR, Engine Flywheel, GEAR,FLYWHEEL RING(PART OF 142)
$112.17 $45.21
1
Add To Cart

BOLT, Engine Crankshaft And Camshaft Balancer
14093637
BOLT, BALANCE SHAFT RETAINER(1/4-20X1/2, 15/32OD)(HEXAGON SOCKET TORX)(0.529)
Require Quantity: 02
Package Quantity: 10
$2.37 $1.49
10
Add To Cart
10105920
BOLT, BALANCE SHAFT GEAR(SPECIAL TORX DRIVE)
- Require Quantity: 06
- Package Quantity: 1
$18.28 $11.62
1
Add To Cart

BOLT, Engine Rear Main Bearing

14088561
BOLT, CRANKSHAFT REAR OIL SEAL HOUSING(1/4-20X1 7/8)
$10.32 $6.56
1
Add To Cart
14101032
BOLT, CRANKSHAFT REAR OIL SEAL HOUSING(.250-20X1.750)
- Require Quantity: 02
- Package Quantity: 10
$4.16 $2.64
10
Add To Cart

12458911
CHAIN KIT, Engine Timing, CHAIN KIT,TIMING(INCLUDES 223-225)(INCLUDES CHAIN,CRANKSHAFT SPROCKET,CAMSHAFT SPROCKET)
$81.77 $51.96
1
Add To Cart

BEARING, Engine Camshaft & Balance Shaft Front
10105908
BEARING, BALANCER SHAFT FRONT(PART OF 118)
Fitting Vehicle Options: ST1(LU3)
$65.68 $41.73
1
Add To Cart
12453171
BEARING, CAMSHAFT(INTERMEDIATE & REAR)
- Fitting Vehicle Options: ST1(LU3)(EXC CV2)
- Require Quantity: 02
- Package Quantity: 1
$80.24 $39.79
1
Add To Cart
19301057
BEARING, CAMSHAFT(INTERMEDIATE & REAR)
- Fitting Vehicle Options: ST1(LU3,CV2)(EXPORT)
- Require Quantity: 02
- Package Quantity: 1
$38.36 $31.28
1
Add To Cart
12453170
BEARING, CAMSHAFT(#1)
- Fitting Vehicle Options: ST1(LU3)
12453172
BEARING, CAMSHAFT(#3)(FOR ENGINES STAMPED WITH "W" BELOW RH CYL HEAD)
- Fitting Vehicle Options: ST1(LU3)(EXC CV2)
12453172
BEARING, CAMSHAFT(#2)(FOR ENGINES STAMPED WITH "T" BELOW RH CYL HEAD)
- Fitting Vehicle Options: ST1(LU3)(EXC CV2)

10230149
RING, Distributor (also Knock Sensor), RING,CRANKSHAFT POSITION SENSOR EXCITOR
$21.13 $12.76
1
Add To Cart

12555637
CRANKSHAFT, Engine, CRANKSHAFT
$815.92 $513.90
1
Add To Cart

12561388
BOLT, Engine Main Bearing Cap, BOLT,CRANKSHAFT BEARING CAP(7/16-14X3.34)
- Require Quantity: 08
- Package Quantity: 1
$10.64 $6.75
1
Add To Cart

12561513
KEY, Engine Crankshaft Pulley and Balancer, KEY,CRANKSHAFT BALANCER(4.8MMX37.5MM)
$7.38 $4.69
1
Add To Cart

12595923
HOUSING, Engine Rear Main Bearing, HOUSING,CRANKSHAFT REAR OIL SEAL(INCLUDES 114,436)
$134.37 $77.20
1
Add To Cart

PLUG, Engine Oil Distribution

14084945
PLUG, ENGINE BLOCK OIL GALLERY(1/4-18X0.56)(STEEL)(8.971)
$12.55 $6.99
1
Add To Cart
24504119
PLUG, ENGINE BLOCK OIL GALLERY(REAR)(10.16 O.D X 4.95)(STEEL)(0.034)
- Require Quantity: 02
- Package Quantity: 1
$7.01 $4.46
1
Add To Cart

BEARING KIT, Engine Crankshaft Main

89060460
BEARING KIT, CRANKSHAFT(.001 UNDERSIZE(#4)(INCLUDES 101,901)(THRUST)
$79.66 $48.12
1
Add To Cart
19256449
BEARING KIT, CRANKSHAFT(#1,2,3)(INCLUDES 102,902)
- Require Quantity: 03
- Package Quantity: 1
$58.01 $36.86
1
Add To Cart

PLUG, Engine Block
94673017
PLUG, ENGINE BLOCK CORE HOLE
Require Quantity: 04
Package Quantity: 1
$7.02 $4.46
1
Add To Cart
24504119
PLUG, ENGINE BLOCK COOLANT DRAIN HOLE(REAR)(10.16 O.D X 4.95)(STEEL)
- Require Quantity: 02
- Package Quantity: 1
$7.01 $4.46
1
Add To Cart

10046031
PIN, Engine Flywheel, PIN,FLYWHEEL LOCATING(3.686)
$5.90 $3.75
5
Add To Cart

10105915
RETAINER, Engine Crankshaft And Camshaft Balancer, RETAINER,BALANCER SHAFT
$15.30 $9.72
1
Add To Cart

10105918
BALL, Engine Oil Distribution, BALL,ENGINE BLOCK OIL PRESSURE CROSSOVER HOLE(5/8 X 5/16)(CUP)
- Location: Driver Side
$1.86 $1.18
1
Add To Cart

10144059
RETAINER, Engine Camshaft, RETAINER,CAMSHAFT
$29.52 $18.77
1
Add To Cart

STUD, Engine Rear Main Bearing
10218027
STUD, CRANKSHAFT REAR OIL SEAL RETAINER(PART OF 112)(5/16-18X39/64)
Require Quantity: 02
Package Quantity: 1
$6.96 $4.43
1
Add To Cart
12555770
STUD, CRANKSHAFT REAR OIL SEAL RETAINER(1/4-20X34)
$15.55 $9.88
1
Add To Cart

10225009
BOLT, Engine Connecting Rod Cap, BOLT,CONNECT ROD(PART OF 128)(3/8-24 X 1 1/2)
- Require Quantity: 12
- Package Quantity: 1
$5.77 $4.68
1
Add To Cart

12513234
GEAR KIT, Engine Crankshaft And Camshaft Balancer, GEAR KIT,BALANCER SHAFT(INCLUDES 123,222)(INCLUDES DRIVE & DRIVEN GEAR)
$125.64 $79.85
1
Add To Cart

RING KIT, Engine Piston
12522848
RING KIT, PISTON(STD)
Require Quantity: 06
Package Quantity: 1
$87.83 $43.55
1
Add To Cart
12524205
RING KIT, PISTON(0.5 MM OVERSIZE)
- Require Quantity: 06
- Package Quantity: 1
$71.47 $45.43
1
Add To Cart

FLYWHEEL, Engine Crankshaft
12557586
FLYWHEEL, ENGINE(MANUAL)(INCLUDES RING GEAR)
Fitting Vehicle Options: ST1(LU3,M50)
$536.04 $372.76
1
Add To Cart
12557586
FLYWHEEL, ENGINE(INCLUDES RING GEAR)
- Fitting Vehicle Options: ST1(LU3,M50)
$536.04 $372.76
1
Add To Cart
12557587
FLYWHEEL, ENGINE
- Fitting Vehicle Options: ST1(LU3,M30)

12703806
CAMSHAFT, Engine, CAMSHAFT,ENGINE(INCLUDES 221)(INCLUDES CAMSHAFT SPROCKET PINION)
$527.85 $333.98
1
Add To Cart

19256448
BEARING KIT, Engine Connecting Rod, BEARING KIT,CONNECT ROD(STD)
- Require Quantity: 06
- Package Quantity: 1
$25.08 $15.15
1
Add To Cart

19417972
SHAFT, Engine Crankshaft And Camshaft Balancer, SHAFT,BALANCE(INCLUDES 119)(INTERNAL-BALANCER)(REMANUFACTURED-NOT FOR SALE WHERE IMPORTS ARE RESTRICTED)
$650.30 $407.73
1
Add To Cart

PIN, Grooved

274584
PIN, GROOVE/F/.312X.375 CADMIUM OR ZINC PLATED (OPT); 0.375" LENGTH(CRANKSHAFT BALANCER)
$2.31 $1.46
1
Add To Cart
274584
PIN, GROOVE/F/.312X.375 CADMIUM OR ZINC PLATED (OPT); 0.375" LENGTH(FLYWHEEL)
$2.31 $1.46
1
Add To Cart
9441003
PIN, SPRING TYPE S 7/16X9/16 STEEL ZINC COATED (DIPPED OR PLATED)(CRANKSHAFT REAR OIL SEAL HOUSING LOCATING)
$3.46 $2.20
1
Add To Cart

3890191
WEIGHT, Engine Flywheel, WEIGHT,CRANKSHAFT BALANCER(BARREL-SHAPED PINION, .625" LONG)
$11.53 $7.33
1
Add To Cart

PISTON, Engine Piston
88894280
PISTON, (W/PINION)(INCLUDES 130)(STD)
Require Quantity: 06
Package Quantity: 1
$164.59 $104.61
1
Add To Cart
88894281
PISTON, (W/PINION)(INCLUDES 130)(0.127MM OVERSIZE)
- Require Quantity: 06
- Package Quantity: 1
$190.38 $94.40
1
Add To Cart

93443044
ROD, Engine Piston, ROD,CONNECT(INCLUDES 125,126,129)
- Require Quantity: 06
- Package Quantity: 1
$172.40 $109.56
1
Add To Cart

88894282
PISTON KIT, Engine Piston, PISTON KIT,ENGINE(INCLUDES 130)(0.5MM OVERSIZE)
- Require Quantity: 06
- Package Quantity: 1

10108645
NUT, HEX FLANGED HEAD,1/4-20X.26,.525 OUTSIDE DIAMETER,284M,PHOSPHATE ELECTRO-ORGANIC(CRANKSHAFT FRONT OIL SEAL)
$7.50 $4.76
10
Add To Cart

10218358
PIN, DOWEL,1/4X27/32,STEEL,PLAIN,CHAMFERED ENDS(PART OF 218)
$7.20 $4.57
1
Add To Cart

10241154
PLUG, EXPANSION,2.1 O.D.,CROSS STEEL, ZINC(CAMSHAFT REAR BEARING HOLE)
$4.30 $2.73
5
Add To Cart

10241154
PLUG, EXPANSION,2.1 O.D.,CROSS STEEL, ZINC(BALANCER SHAFT REAR BEARING HOLE)
$4.30 $2.73
5
Add To Cart

12594364
WASHER, FLAT, 0.45" INSIDE DIAMETER, 1.75" OUTSIDE DIAMETER, 0.31" THICK, SAE 1010 STEEL, GMW3044(CRANKSHAFT BALANCER)
$23.13 $14.71
1
Add To Cart

14090911
PLUG, DRY SEAL (3/8-18X.42)(LH REAR)
$7.51 $4.77
1
Add To Cart

9440046
HEX, HEX FLANGED HEAD,5/16-18 X .281 286M 120K PSI PHOSPHATE ELECTRIC ORG(OIL PAN)
- Require Quantity: 02
- Package Quantity: 1
$13.05
1
Add To Cart

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 2003 Chevrolet Blazer 2WD parts. Parts like Engine Assembly-Block & 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 4.3L. Model Code: 2 DOOR, 4 DOOR.