Hoses & Pipes/Heater-Rear fit your 2003 Chevrolet Trailblazer EXT 4WD

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2003 Chevrolet Trailblazer EXT 4WD

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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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Currently selected

Front End Sheet Metal, Heater

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Body Mounting, Air Conditioning, Audio/Entertainment

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Brakes, Rear Axle, Propeller Shaft, Wheels, Tires

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

Cooling System, Grille, Oil System

Engine

Frames, Springs, Shocks, Bumpers

Front Axle, Front Suspension, Steering

Fuel System, Exhaust, Emission System

Maintenance Parts, Fluids, Capacities, Electrical Connectors

Rear Body Structure, Moldings & Trim, Cargo Stowage

Starter, Generator, Ignition, Electrical, Lamps

Transfer Case

Transmission - Automatic

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Recommended

Part No. & Part Description

Price & Qty.

Part No. &
Part Description

SEAL, A/C Refrigerant Lines(Fitting Pkgs Include O Rings and Clamps)
2724966
SEAL, A/C COMPRESSOR & CONDENSER HOSE(25 MM OUTSIDE DIAMETER X 17 MM INSIDE DIAMETER)(3/4 INCH DIAMETER)(PART OF 2)(25MM OUTSIDE DIAMETER X 17MM INSIDE DIAMETER)(3/4" IN DIAMETER)(R-134A)
Fitting Vehicle Options: ST1(CJ2,CJ3)
Replaced By: 52474375
$6.52 $3.63
1
Add To Cart
2724966
SEAL, A/C COMPRESSOR TUBE(25 MM OUTSIDE DIAMETER X 17 MM INSIDE DIAMETER)(3/4 INCH DIAMETER)(PART OF 2)(25MM OUTSIDE DIAMETER X 17MM INSIDE DIAMETER)(3/4" IN DIAMETER)(R-134A)(*KIT2)
- Fitting Vehicle Options: ST158(06)(LM4,CJ2,CJ3)
- Replaced By: 52474375
$6.52 $3.63
1
Add To Cart
2724966
SEAL, A/C COMPRESSOR TUBE(25 MM OUTSIDE DIAMETER X 17 MM INSIDE DIAMETER)(3/4 INCH DIAMETER)(PART OF 6)(25MM OUTSIDE DIAMETER X 17MM INSIDE DIAMETER)(3/4" IN DIAMETER)(R-134A)(*KIT2)
- Fitting Vehicle Options: ST158(06)(LM4,CJ2,CJ3)
- Replaced By: 52474375
$6.52 $3.63
1
Add To Cart
13579648
SEAL, A/C EVAPORATOR TUBE(19 MM OUTSIDE DIAMETER X 11 MM INSIDE DIAMETER)(1/2 INCH DIAMETER)(PART OF 1,14)(SLIMLINE WASHER,1/2")(MULTI-SIDED)(R-1234YF)
- Fitting Vehicle Options: ST1(06-36)(CJ2,CJ3)
$18.86 $10.00
1
Add To Cart
13579648
SEAL, A/C EVAPORATOR TUBE(19 MM OUTSIDE DIAMETER X 11 MM INSIDE DIAMETER)(1/2 INCH DIAMETER)(PART OF 1)(SLIMLINE WASHER,1/2")(MULTI-SIDED)(R-1234YF)(*KIT1)
- Fitting Vehicle Options: ST1(06-36)(CJ2,CJ3)
$18.86 $10.00
1
Add To Cart
13579648
SEAL, A/C EVAPORATOR TUBE(19 MM OUTSIDE DIAMETER X 11 MM INSIDE DIAMETER)(1/2 INCH DIAMETER)(PART OF 1,9)(SLIMLINE WASHER,1/2")(MULTI-SIDED)(R-1234YF)
- Fitting Vehicle Options: ST1(06-36)(CJ2,CJ3)
$18.86 $10.00
1
Add To Cart

15161789
TEE, Heater, TEE,AUXILIARY HEATER INLET HOSE(ENGINE SIDE)(*KIT2)
$43.33 $27.53
1
Add To Cart

CLAMP, Heater
11516223
CLAMP, HOSE SPRING BAND, 24 MM, GM6298M(AUXILIARY A/C EVAPORATOR & COMPRESSOR HOSE)(*KIT1)(8.948)
Require Quantity: 02
Package Quantity: 1
$12.40 $8.30
1
Add To Cart
15012561
CLAMP, HOSE SPRING,27 NOMINAL,25.2 MIN-28.9 MAX,15MM WIDE,BLACK(CLAMP,HEATER OUTLET HOSE(PART OF 23))(*KIT2)(8.948)
$6.28 $4.20

HOSE, Heater
15832904
HOSE, HEATER OUTLET(SEE GROUP 08.000 "HOSES & PIPES/HEATER FRONT" FOR DETAILED ILLUSTRATED VIEW)
Fitting Vehicle Options: ST158(06)(LL8,CJ2,CJ3)
Replaced By: 19432478
$140.68 $78.43
1
Add To Cart
10385281
HOSE, HEATER INLET & OUTLET(MAY ALSO REQUIRE T CONNECTOR)
- Fitting Vehicle Options: ST155,158(LM4,CJ2,CJ3)
15161783
HOSE, HEATER OUTLET(INCLUDES 25-26)(*KIT2)
- Fitting Vehicle Options: ST158(06)(LM4,CJ2,CJ3)

TUBE, A/C Evaporator
15113349
TUBE, AUXILIARY A/C EVAPORATOR (W/AUXILIARY HEATER INLET PIPE)(INCLUDES 15,18,19)(IF VEHICLE IS W/BLOCK FITTING AT HEATER CORE IT ALSO REQUIRES 89023336 PIPE)
Fitting Vehicle Options: ST158(06)(CJ2,CJ3)
Replaced By: 19432544
$631.42 $206.86
1
Add To Cart
15113349
TUBE, AUXILIARY A/C EVAPORATOR (W/AUXILIARY HEATER INLET PIPE)(INCLUDES 8,19,28)(IF VEHICLE IS W/BLOCK FITTING AT HEATER CORE IT ALSO REQUIRES 89023336 PIPE)
- Fitting Vehicle Options: ST158(06)(CJ2,CJ3)
- Replaced By: 19432544
$631.42 $206.86
1
Add To Cart
15139207
TUBE, AUXILIARY A/C COMPRESSOR (W/AUXILIARY HEATER OUTLET PIPE)(FRONT)(INCLUDES 6,12,13,17,22-27)
- Fitting Vehicle Options: ST158(06)(LM4,CJ2,CJ3)
15139726
TUBE, A/C EVAPORATOR(SEE GROUP 09.000 "A/C REFRIGERATION SYSTEM FRONT" FOR DETAILED ILLUSTRATED VIEW)(INCLUDES 13)
- Fitting Vehicle Options: ST158(06)(CJ2,CJ3)
15139726
TUBE, A/C EVAPORATOR(SEE GROUP 09.000 "A/C REFRIGERATION SYSTEM" FOR DETAILED ILLUSTRATED VIEW)(INCLUDES 8,10)
- Fitting Vehicle Options: ST158(06)(CJ2,CJ3)
15161782
TUBE, A/C COMPRESSOR(AUXILIARY)(LESS AUXILIARY HEATER PIPE)(INCLUDES 12,22,24,27)(*KIT2)
- Fitting Vehicle Options: ST158(06)(LM4,CJ2,CJ3)
15293725
TUBE, AUXILIARY A/C COMPRESSOR (W/AUXILIARY HEATER OUTLET PIPE)(INCLUDES 5,7)(REAR)(2002 & 2003 VEHICLES MAY ALSO REQUIRE P/N 89023336)
- Fitting Vehicle Options: ST158(CJ2,CJ3)
15293725
TUBE, AUXILIARY A/C COMPRESSOR (W/AUXILIARY HEATER OUTLET PIPE)(2002 & 2003 VEHICLES MAY ALSO REQUIRE P/N 89023336)(INCLUDES 3)(REAR)
- Fitting Vehicle Options: ST158(CJ2,CJ3)

89022560
SCREEN, A/C Expansion Valve, SCREEN,A/C EVAPORATOR THERMAL EXPANSION VALVE(PART OF 1)
$8.20 $4.35
1
Add To Cart

PIPE, Heater

89023336
PIPE, AUXILIARY HEATER INLET & OUTLET(CONVERSION KIT, WHEN REPLACING HEATER CORE AND/OR PLUMBING ASM'S W/ALUMINUM BLOCK)(INCLUDES 18,20-22)(9.220)
$511.20 $270.94
1
Add To Cart
89023336
PIPE, AUXILIARY HEATER INLET & OUTLET(CONVERSION KIT, WHEN REPLACING HEATER CORE AND/OR PLUMBING ASM'S W/ALUMINUM BLOCK)(INCLUDES 19,29-31)(9.220)
$511.20 $270.94
1
Add To Cart

15119173
VALVE, Heater, VALVE,HEATER WATER SHUTOFF(SEE GROUP 08.000 "HOSES & PIPES/HEATER FRONT" FOR DETAILED ILLUSTRATED VIEW)

15761641
CONNECTOR, Heater, CONNECTOR,HEATER OUTLET HOSE(PART OF 23)(*KIT2)

15884821
HOSE, A/C Compressor Suction and Discharge, HOSE,A/C COMPRESSOR & CONDENSER(SEE GROUP 09.000 "A/C REFRIGERATION SYSTEM FRONT" FOR DETAILED ILLUSTRATED VIEW)(CODE 5276,1911,4475,5061,4821)

11514596
NUT, HEX FLANGED HEAD,M8X1.25,17.9 OUTSIDE DIAMETER,738 THICK,13MM HEXAGON,10, PHOSPHATE ZINC ORGANIC - FLAKE(A/C COMPRESSOR & CONDENSER HOSE)(8.915)
$12.60
1
Add To Cart

11514596
NUT, HEX FLANGED HEAD,M8X1.25,17.9 OUTSIDE DIAMETER,738 THICK,13MM HEXAGON,10, PHOSPHATE ZINC ORGANIC - FLAKE(AUXILIARY A/C COMPRESSOR TUBE)(8.915)
$12.60
1
Add To Cart

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

11514596
NUT, HEX FLANGED HEAD,M8X1.25,17.9 OUTSIDE DIAMETER,738 THICK,13MM HEXAGON,10, PHOSPHATE ZINC ORGANIC - FLAKE(PART OF 14)(8.915)
$12.60
1
Add To Cart

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

11514596
NUT, HEX FLANGED HEAD,M8X1.25,17.9 OUTSIDE DIAMETER,738 THICK,13MM HEXAGON,10, PHOSPHATE ZINC ORGANIC - FLAKE(PART OF 9)(8.915)
$12.60
1
Add To Cart

11609989
BOLT, HEXAGON W/FLAT WASHER,M6X1X25,15 THREAD,17 OUTSIDE DIAMETER,6202M STEEL,GMW3200,TAPTITE(PART OF 2)
$6.68 $4.24
4
Add To Cart

11609989
BOLT, HEXAGON W/FLAT WASHER,M6X1X25,15 THREAD,17 OUTSIDE DIAMETER,6202M STEEL,GMW3200,TAPTITE(AUXILIARY A/C COMPRESSOR TUBE)
- Require Quantity: 04
- Package Quantity: 4
$6.68 $4.24
4
Add To Cart

11609989
BOLT, HEXAGON W/FLAT WASHER,M6X1X25,15 THREAD,17 OUTSIDE DIAMETER,6202M STEEL,GMW3200,TAPTITE(AUXILIARY A/C EVAPORATOR TUBE)
- Require Quantity: 06
- Package Quantity: 4
$6.68 $4.24
4
Add To Cart

11562004
BOLT, HEXAGON W/FLAT WASHER,M10X1.5X30,19 THREAD,20 OUTSIDE DIAMETER,8.8,GMW3200,MACHINE,M-POINT(AUXILIARY A/C COMPRESSOR TUBE)
$5.83 $3.70

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 2003 Chevrolet Trailblazer EXT 4WD parts. Parts like Hoses & Pipes/Heater-Rear 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.