Engine Assembly-Cylinder Block & Related Parts fit your 2003 Chevrolet Avalanche 1500 2WD

Currently shopping for

2003 Chevrolet Avalanche 1500 2WD

Change Vehicle

Vehicle Options

8 Cyl 5.3L MFI; Avalanche 1/2 Ton

Vehicle Options

8 Cyl 5.3L MFI; Avalanche 1/2 Ton

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

89060436
SEAL KIT, Engine Rear Main Bearing, SEAL KIT,CRANKSHAFT REAR OIL(PART OF 144)(REVERSE LIP SEAL,INCLUDE INSTRUCTION SHEET)
$34.84 $22.14
1
Add To Cart

BOLT, Engine Main Bearing Cap
12560272
BOLT, CRANKSHAFT BEARING CAP(LONG)(M10X2X102.5)
Require Quantity: 10
Package Quantity: 10
$7.39 $4.69
10
Add To Cart
12556127
BOLT, CRANKSHAFT BEARING CAP(SIDE)(SHORT)(M8X1.25X24)
- Require Quantity: 10
- Package Quantity: 1
$5.21 $3.31
1
Add To Cart

12677836
SENSOR, Engine Oil Pressure/Temperature, SENSOR,ENGINE OIL PRESSURE(MATING CONNECT W/LEADS USE 88988301)
$101.82 $51.32
1
Add To Cart

12646387
CHAIN, Engine Timing, CHAIN,CAMSHAFT TIMING
$96.00 $61.04
1
Add To Cart

12639249
GASKET, Engine Rear Main Bearing, GASKET,CRANKSHAFT REAR OIL SEAL HOUSING(PART OF 144)
$60.16 $40.32
1
Add To Cart

89017573
BEARING KIT, Engine Connecting Rod, BEARING KIT,CONNECT ROD(PART OF 101)(STD)
- Require Quantity: 08
- Package Quantity: 1
$24.65 $14.89
1
Add To Cart

BOLT, HEXAGON

11515755
BOLT, HEXAGON,M8X1.25X16,15 THREAD,18 O.D.,10.9,7114M(CAMSHAFT RETAINER)(TOGETHER WITH 12345493 REPLCS 25534835)
$13.05
1
Add To Cart
11588723
BOLT, HEX FLANGED HEAD, M8X1.25X25, 18 THREAD, 18 OUTSIDE DIAMETER, 8.8 STEEL, GMW3359, M-POINT(PART OF 144)
- Require Quantity: 12
- Package Quantity: 1
$9.35 $5.84
1
Add To Cart
11515756
BOLT, HEX FLANGED HEAD, M8X1.25X20,17THD,18 O.D.,10.9,7114M(BOLT,CRANKSHAFT POSITION SENSOR)
$7.50 $4.76
10
Add To Cart
11515756
BOLT, HEX FLANGED HEAD, M8X1.25X20,17THD,18 O.D.,10.9,7114M(CAMSHAFT POSITION SENSOR)
$7.50 $4.76
10
Add To Cart

PLUG, Engine Oil Distribution
12573460
PLUG, ENGINE BLOCK OIL GALLERY(INCLUDES 119)(PART OF 101)(15.68MM DIAMETER)(INCLUDES O-RING SEAL(N.S.S.)
Fitting Vehicle Options: CK1,2(LM7)
$11.09 $6.69
1
Add To Cart
9427693
PLUG, ENGINE BLOCK OIL GALLERY(61 OUTSIDE DIAMETER,.25 THICK)
- Fitting Vehicle Options: CK1,2(LM7)
$7.20 $4.57
1
Add To Cart
11588949
PLUG, M16X1.5X14, 24 OUTSIDE DIAMETER, SAE 1010 STEEL, GMW3044, W/ ALUMINUM WASHER(ENGINE BLOCK COOLANT DRAIN HOLE)(8.973)
- Require Quantity: 02
- Package Quantity: 1
$14.20 $9.02
1
Add To Cart
11588949
PLUG, M16X1.5X14, 24 OUTSIDE DIAMETER, SAE 1010 STEEL, GMW3044, W/ ALUMINUM WASHER(ENGINE BLOCK OIL GALLERY)(8.973)
$14.20 $9.02
1
Add To Cart

12556127
BOLT, Engine Camshaft Gear, BOLT,CAMSHAFT SPROCKET(PART OF 101)(M8X1.25X24)(0.056)
- Require Quantity: 03
- Package Quantity: 1
$5.21 $3.31
1
Add To Cart

12560273
STUD, Engine Main Bearing Cap, STUD,CRANKSHAFT BEARING CAP(HEX FLANGED HEAD,M10X2X23,M8X1.25X11,113.5 TOTAL LONG)
- Require Quantity: 10
- Package Quantity: 1
$10.15 $6.60
1
Add To Cart

12589016
RETAINER, Engine Camshaft, RETAINER,CAMSHAFT(INCLUDES SEAL)(USE WITH BOLT 11561455)
$36.79 $22.22
1
Add To Cart

11569956
BOLT, Engine Flywheel, BOLT,FLYWHEEL(PART OF 101)(M11X1.5X23.5)(W/SEALER)(HEXAGON HEAD STYLE BOLT)
- Require Quantity: 06
- Package Quantity: 10
$6.47 $4.11
10
Add To Cart

BEARING KIT, Engine Crankshaft Main
89017571
BEARING KIT, CRANKSHAFT(PART OF 101)(#1,2,4,5)(STD)
Require Quantity: 04
Package Quantity: 1
$76.97 $48.92
1
Add To Cart
89017572
BEARING KIT, CRANKSHAFT THRUST(PART OF 101)(STD)(#3)
$69.37 $39.86
1
Add To Cart

12556582
SPROCKET, Engine Crankshaft/Timing, SPROCKET,CRANKSHAFT(PART OF 101)
$47.39 $28.63
1
Add To Cart

SENSOR, Distributor (also Knock Sensor)

12560228
SENSOR, CRANKSHAFT POSITION(INCLUDES 105)(MATING CONNECT W/LEADS USE 88986451)
$117.48 $65.50
1
Add To Cart
19420911
SENSOR, CAMSHAFT POSITION(INCLUDES 106)(PART OF 101)(MATING CONNECT W/LEADS USE 13585316)
$123.83 $59.64
1
Add To Cart

BEARING, Engine Camshaft & Balance Shaft Front
19260874
BEARING, CAMSHAFT(PART OF 101)(DIAMETER 2.353-2.354)(POSITIVE #1 & #5)(USED WITH ENGINE BLOCK CAM BORE DIAMETER OF 59.65 MM IN POSTIONS 1,5 .FOR 1ST DESIGN SEE 19167382)
Fitting Vehicle Options: CK1,2(LM7)(2ND DES)
Require Quantity: 02
Package Quantity: 1
$52.01 $31.42
1
Add To Cart
19260875
BEARING, CAMSHAFT(# 1,5)(PART OF 101)(DIAMETER 2.334-2.335)(POSITIVE #2 & #4)(USED WITH ENGINE BLOCK CAM DIAMETER OF 59.15 MM IN POSITIONS 1,5)(FOR 2ND DESIGN SEE 19167383)
- Fitting Vehicle Options: CK1,2(LM7)(1ST DES)
- Require Quantity: 02
- Package Quantity: 1
$52.01 $31.42
1
Add To Cart
19260875
BEARING, CAMSHAFT(PART OF 101)(DIAMETER 2.334-2.335)(POSITIVE #2 & #4)(USED WITH ENGINE BLOCK CAM BORE DIAMETER OF 59.15 MM IN POSITIONS #2 ,4)(FOR 1ST DESIGN SEE 12453168)
- Fitting Vehicle Options: CK1,2(LM7)(2ND DES)
- Require Quantity: 02
- Package Quantity: 1
$52.01 $31.42
1
Add To Cart
19260876
BEARING, CAMSHAFT(PART OF 101)(DIAMETER 2.314-2.315)(POSITIVE #3)
- Fitting Vehicle Options: CK1,2(LM7)
$52.01 $31.42
1
Add To Cart
12453168
BEARING, CAMSHAFT(PART OF 101)(59.10 MM)(# 2,4)(USED WITH ENGINE BLOCK CAM BORE DIAMETER OF 58.90 MM IN POSITIONS 2,4)(FOR 2ND DESIGN SEE 19167382)
- Fitting Vehicle Options: CK1,2(LM7)(1ST DES)
- Require Quantity: 02
- Package Quantity: 1
$64.21 $56.52
1
Add To Cart

12576407
SPROCKET, Engine Camshaft, SPROCKET,CAMSHAFT
$59.89 $34.42
1
Add To Cart

19300488
BALANCER, Engine Crankshaft And Camshaft Balancer, BALANCER,CRANKSHAFT(PART OF 101)(0.666)
$185.36 $106.50
1
Add To Cart

11610158
BOLT, Engine Connecting Rod Cap, BOLT,CONNECT ROD(PART OF 115)(MJ9X1X43)
- Require Quantity: 16
- Package Quantity: 1
$18.70 $11.89
1
Add To Cart

12568734
ROD, Engine Piston, ROD,CONNECT(INCLUDES 116,117)(PART OF 101)
- Require Quantity: 08
- Package Quantity: 1

12554553
PIN, Engine Camshaft gear, PIN,CAMSHAFT SPROCKET LOCATING(PART OF 134)(1/4X5/8)
$9.62 $6.12
1
Add To Cart

12570326
PIN, Engine Cylinder Head, PIN,CYL HEAD LOCATING(PART OF 101)
- Require Quantity: 04
- Package Quantity: 1
$7.39 $4.69
1
Add To Cart

12560967
CAMSHAFT, Engine, CAMSHAFT,ENGINE(INCLUDES 127)
$760.85 $437.16
1
Add To Cart

12654640
PLATE, Engine Crankshaft, PLATE,AUTOMATIC TRANSMISSION FLEXIBLE(USE W/QTY 3 OF BOLT 24503068)
$216.13 $124.19
1
Add To Cart

RING KIT, Engine Piston
12670787
RING KIT, PISTON(PART OF 101)(STD)
Require Quantity: 08
Package Quantity: 1
$70.96 $40.77
1
Add To Cart
12670788
RING KIT, PISTON(PART OF 101)(0.5MM OVERSIZE)
- Require Quantity: 08
- Package Quantity: 1
$99.71 $40.10
1
Add To Cart

12561513
KEY, Engine Crankshaft Pulley and Balancer, KEY,CRANKSHAFT BALANCER(PART OF 101)(4.8MMX37.5MM)
$7.38 $4.69
1
Add To Cart

19367775
ENGINE, New/Remanufactured, ENGINE,GASOLINE (SERVICE)(INCLUDES 102,107,110,111,112,113,114,115,116,118,120,131,135,136,137,138,139,140,149,150,152,154,155,156)(ENGINE MAY BLACK ENAMEL ASSEMBLED WITH A COMBINATION OF LONG AND SHORT HEAD BOLTS. LONG AND SHORT BOLTS REQUIRE DIFFERENT TIGHTENING)
$5555.07
1
Add To Cart

PISTON, Engine Piston
88894397
PISTON, (W/PINION)(INCLUDES 112)(PART OF 101)(STD)
Require Quantity: 08
Package Quantity: 1
88894398
PISTON, (W/PINION)(INCLUDES 112)(PART OF 101)(0.5MM OVERSIZE)
- Require Quantity: 08
- Package Quantity: 1

12557840
BOLT, Engine Crankshaft Pulley and Balancer, BOLT,CRANKSHAFT BALANCER(M16X2.0X103)
$9.21 $5.29
1
Add To Cart

12561663
PLUG, Engine Block, PLUG,ENGINE BLOCK COOLANT DRAIN HOLE(LEFT SIDE ONLY)(M28X1.25X12.4, BRASS)
- Location: Driver Side
$21.45 $12.96
1
Add To Cart

12639250
HOUSING, Engine Rear Main Bearing, HOUSING,CRANKSHAFT REAR OIL SEAL(INCLUDES 143,145,146)
$98.60 $56.65
1
Add To Cart

19333512
SEALANT, Truck Maintenance, SEALANT,THREAD(VIBRA-TITE 420)(1.69 OUNCE(SEALER,OIL PAN AT FOUR CORNER(ANAEROBIC GASKET SEALANT))
$27.29 $15.21
1
Add To Cart

3890191
WEIGHT, Engine Flywheel, WEIGHT,FLYWHEEL(PART OF 101,156)
$11.53 $7.33
1
Add To Cart

PIN, Engine Flywheel

11505820
PIN, DOWEL,M6X20,PLAIN(PART OF 101,156)
$7.02 $4.46
11505820
PIN, DOWEL,M6X20,PLAIN(PART OF 101)
$7.02 $4.46

12559357
CRANKSHAFT, Engine, CRANKSHAFT,(INCLUDES 142)(PART OF 101)

1453658
PIN, DOWEL STRAIGHT 5/8 DIAMETER 1 3/16 LG(TRANS LOCATING)
- Replaced By: 12720455
$7.40 $4.69
1
Add To Cart

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 2003 Chevrolet Avalanche 1500 2WD parts. Parts like Engine Assembly-Cylinder 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: 8 Cyl 5.3L. Model Code: 1/2 TON.