Hoses & Pipes/Heater fit your 2003 Pontiac Grand Prix

My Vehicle Change Vehicle

2003 Pontiac Grand Prix

My Vehicle Change Vehicle

2003 Pontiac Grand Prix

Categories Close X

You have selected

Front End Sheet Metal, Heater

Other Categories

Body Moldings, Sheet Metal, Rear Compartment Hardware, Roof Hardware

Body Mounting, Air Conditioning, Audio/Entertainment

Brakes

Brakes, Rear Axle, Propeller Shaft, Wheels, Tires

Cooling System, Grille, Oil System

Engine

Frames, Springs, Shocks, Bumpers

Front Suspension, Steering

Fuel System, Exhaust, Emission System

Interior Trim, Front Seat Trim, Seat Belts

Maintenance Parts, Fluids, Capacities, Electrical Connectors

Rear Glass, Seat Parts, Adjuster

Rear Seat Trim, Carpet

Starter, Generator, Ignition, Electrical, Lamps

Transmission - Automatic

Windshield, Wiper, Mirrors, Instrument Panel, Console, Doors

Parts Questions

Sort by:

Recommended

Part No. & Part Description

Price

Part No. &
Part Description

PIPE, Engine Coolant By-Pass
24503423
PIPE, THERMOSTAT BYPASS UPPER(INCLUDES 9)(TO LOWER INTAKE MANIFOLD.)(8.846)
Fitting Vehicle Options:
W(L67), W(L36)
MSRP: $16.69
$10.60
1
Add To Cart
12565082
PIPE, THERMOSTAT BYPASS LOWER(INCLUDES 9,12)
- Fitting Vehicle Options:
  W(L67), W(L36)
MSRP: $6.16
$3.26
5
Add To Cart
12590279
PIPE, THERMOSTAT BYPASS(PART OF LOWER INTAKE)(USE SEALANT 19332211(USA) OR 10953488(CANADA)
- Fitting Vehicle Options:
  W(LG8)
MSRP: $56.28
$35.77
1
Add To Cart
24507875
PIPE, THERMOSTAT BYPASS(INCLUDES 7,8)
- Fitting Vehicle Options:
  W69(LG8)
MSRP: $127.56
$53.58
1
Add To Cart

SEAL, Engine Coolant By-Pass
24502846
SEAL, THERMOSTAT BYPASS PIPE(O RING)(PART OF 11)(SEAL-0.799" INSIDE DIAMETER,0.1.03 X-SECTION DIAMETER)(1.060)
Fitting Vehicle Options:
W(L36,L67)
MSRP: $6.18
$3.28
5
Add To Cart
25537068
SEAL, THERMOSTAT BYPASS PIPE(O RING)(PART OF 10,11)(0.674" INSIDE DIAMETER)(TEFLON COATED)(9.260)
- Fitting Vehicle Options:
  W(L36,L67)
- Require Quantity:
  03
- Package Quantity:
  10
MSRP: $2.45
$1.30
10
Add To Cart
10189205
SEAL, THERMOSTAT BYPASS PIPE ADAPTER (O RING)(PART OF 5)(YELLOW)
- Fitting Vehicle Options:
  W(LG8)
MSRP: $14.42
$7.64
1
Add To Cart

12132208
RETAINER, Spark Plug Ignition Wire, RETAINER,SPARK PLUG WIRE(RETAINS 3-7MM LEADS,HINGED LOCKING COVER & ROSEBUD TYPE MOUNT)
MSRP: $7.19
$4.57
1
Add To Cart

TENSIONER, Engine Cooling
12590766
TENSIONER, DRIVE BELT(INCLUDES INLET/OUTLET PORTS)(INCLUDES PULLEY)
Fitting Vehicle Options:
W(L67), W(L36)
MSRP: $283.58
$162.95
1
Add To Cart
12564506
TENSIONER, DRIVE BELT(TO RH ENGINE MOUNTING BRACKET)(LESS INLET/OUTLET PORTS)(P/N STAMPED ON PULLEY)
- Fitting Vehicle Options:
  W(L67)
MSRP: $121.00
$105.98
1
Add To Cart

SEAL, Heater
24502375
SEAL, HEATER INLET & OUTLET PIPE (O-RING)(PART OF 6)(0.862"INSIDE DIAMETER,O.103"X-SEC)
Fitting Vehicle Options:
W(L36,L67)
Require Quantity:
02
Package Quantity:
1
MSRP: $8.20
$4.35
1
Add To Cart
24504709
SEAL, HEATER INLET PIPE ADAPTER (O RING)(PART OF 1)(OUTER DIAMETER 0.549" INNER DIAMETER 0.103" X-SECTION DIAMETER)(3.337)
- Fitting Vehicle Options:
  W(LG8)
MSRP: $5.02
$2.80
10
Add To Cart

HOSE, Throttle Body Coolant Supply

24504912
HOSE, THROTTLE BODY HEATER INLET(9MM INSIDE DIAMETER 3MM WALL)(FORMED 90 DEGREE BEND,43.5 LONG EACH END)
MSRP: $17.09
$9.53
1
Add To Cart
24504913
HOSE, THROTTLE BODY HEATER OUTLET
MSRP: $26.90
$14.25
1
Add To Cart

24506322
ADAPTER, Heater, ADAPTER,HEATER INLET & OUTLET PIPE(INCLUDES 8)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $33.31
$21.16
1
Add To Cart

10070107
VALVE, Engine Air Cooling Control, VALVE,ENGINE COOLANT AIR BLEED(PART OF 5)
MSRP: $18.78
$9.95
1
Add To Cart

11516223
CLAMP, Heater, CLAMP, HOSE SPRING BAND, 24 MM, GM6298M(HEATER INLET HOSE)(AT ENGINE)(PART OF 15)(8.948)
MSRP: $12.40
$8.30
1
Add To Cart

10182356
HOSE, Engine Coolant By-Pass, HOSE,THERMOSTAT BYPASS
MSRP: $22.53
$15.07
1
Add To Cart

14103956
NUT, Heater, NUT,HEATER INLET & OUTLET HOSE CLIP BRACKET(5 X 1.6)(PAL NUT)(2.575)
MSRP: $2.88
$1.83
20
Add To Cart

HOSE, Heater
19303532
HOSE, HEATER INLET(INCLUDES 14)
Fitting Vehicle Options:
W(LG8)
MSRP: $13.36
$7.45
1
Add To Cart
10288180
HOSE, HEATER OUTLET(INCLUDES 13)
- Fitting Vehicle Options:
  W(LG8)
10427568
HOSE, HEATER INLET(INCLUDES 4)
- Fitting Vehicle Options:
  W(L36,L67)
10427571
HOSE, HEATER OUTLET(INCLUDES 3)
- Fitting Vehicle Options:
  W(L36,L67)

12568743
PIPE, Heater, PIPE,HEATER INLET(INCLUDES 2)
MSRP: $81.16
$38.63
1
Add To Cart

10261790
BRACKET, Heater, BRACKET,HEATER INLET & OUTLET HOSE CLIP

CLAMP, Throttle Body Coolant Supply
24506377
CLAMP, THROTTLE BODY HEATER INLET HOSE(SPRING BAND,14.9-17.5 1D,1 THICK BAND,10 WIDE,MODIFIED SAE 6150)(1.540)
Require Quantity:
02
Package Quantity:
1
24506377
CLAMP, THROTTLE BODY HEATER OUTLET HOSE(SPRING BAND,14.9-17.5 1D,1 THICK BAND,10 WIDE,MODIFIED SAE 6150)(1.540)
- Require Quantity:
  02
- Package Quantity:
  1

24507801
STUD, STUD,FUEL FEED & RETURN PIPE CLIP(M10X1.5X16MM)

11514596
NUT, HEX FLANGED HEAD,M8X1.25,17.9 OUTSIDE DIAMETER,738 THICK,13MM HEXAGON,10, PHOSPHATE ZINC ORGANIC - FLAKE(HEATER INLET PIPE)(8.915)
MSRP: $7.01
$4.03
1
Add To Cart

11514596
NUT, HEX FLANGED HEAD,M8X1.25,17.9 OUTSIDE DIAMETER,738 THICK,13MM HEXAGON,10, PHOSPHATE ZINC ORGANIC - FLAKE(THERMOSTAT BYPASS PIPE CLIP)(8.915)
MSRP: $7.01
$4.03
1
Add To Cart

11561025
BOLT, HEX FLANGED HEAD,M6X1X16,13.5 THREAD,14.2 OUTSIDE DIAMETER,GMW25 STEEL,GMW3200,MACHINE,HEADER POINT(HEATER INLET & OUTLET PIPE)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $8.90
$5.65
1
Add To Cart

11561025
BOLT, HEX FLANGED HEAD,M6X1X16,13.5 THREAD,14.2 OUTSIDE DIAMETER,GMW25 STEEL,GMW3200,MACHINE,HEADER POINT(THERMOSTAT BYPASS PIPE)
MSRP: $8.90
$5.65
1
Add To Cart

11570616
CLAMP, SPRINGBAND, 27 NOMINAL DIAMETER, 15 THICK, STEEL, ROBO(PART OF 2)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $7.19
$4.57
1
Add To Cart

11570616
CLAMP, SPRINGBAND, 27 NOMINAL DIAMETER, 15 THICK, STEEL, ROBO(HEATER INLET HOSE)(AT HEATER CORE)(PART OF 15)
MSRP: $7.19
$4.57
1
Add To Cart

11570383
CLAMP, SPRINGBAND,24 NOMINAL DIAMETER, 15 THICK, STEEL, GMW14083(PART OF 1)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $12.10
$8.55
1
Add To Cart

11570383
CLAMP, SPRINGBAND,24 NOMINAL DIAMETER, 15 THICK, STEEL, GMW14083(HEATER OUTLET HOSE)(AT ENGINE & HEATER CORE)(PART OF 16)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $12.10
$8.55
1
Add To Cart

1470030
CLAMP, WORM TYPE(11/16" TO 1 5/16")(THERMOSTAT BYPASS PIPE)
- Require Quantity:
  02
- Package Quantity:
  1
- Replaced By:
  11610236
MSRP: $7.19
$4.35
1
Add To Cart

11508600
BOLT, HEX FLANGED HEAD,M6X1X20,9.8,PHOSPHATE ZINC ORGANIC(THERMOSTAT BYPASS PIPE)
- Replaced By:
  11517518
MSRP: $7.70
$4.89
1
Add To Cart

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 2003 Pontiac Grand Prix parts. Parts like Hoses & Pipes/Heater are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 3.1L, 6 Cyl 3.8L. Model Code: GT 4 DOOR, GTP 4 DOOR, SE 4 DOOR.