Engine Assembly-Manifolds & Fuel Related Parts fit your 2003 Buick Lesabre

My Vehicle Change Vehicle
2003 Buick Lesabre

6 Cyl 3.8L MFI, HO (ERV6 Series); 4-Speed Automatic Transmission, 4T65-E

My Vehicle Change Vehicle
2003 Buick Lesabre

6 Cyl 3.8L MFI, HO (ERV6 Series); 4-Speed Automatic Transmission, 4T65-E

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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
Frames, Springs, Shocks, Bumpers
Front End Sheet Metal, Heater
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
Categories Close X

You have selected

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
Frames, Springs, Shocks, Bumpers
Front End Sheet Metal, Heater
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
Sort by:
Recommended
Part No. & Part Description
Price
Part No. &
Part Description
  • SENSOR, Computer Control Sensors
    15326386
    SENSOR, ENGINE COOLANT TEMPERATURE(2-WAY MALE)(MATING CONNECT W/LEADS USE 88987993)
    MSRP: $49.72
    $26.35
    1
    Add To Cart
  • 12614973
    SENSOR, MAP(AT ENGINE)(INCLUDES SEAL)(MATING CONNECT W/LEADS USE 88987997)
    • Replaced By:
      19418808
    MSRP: $139.84
    $70.48
    1
    Add To Cart
  • 19178958
    SENSOR, HEATED OXYGEN(POSITION 1)(IN EXHAUST MANIFOLD/CROSSOVER)(INCLUDES 574)
    MSRP: $122.36
    $64.85
    1
    Add To Cart
  • CAP, Engine Oil Filler
    12573337
    CAP, OIL FILLER(SAE 5W30, NON-VENTED, SEAL)(INCLUDES 570)
    MSRP: $20.44
    $10.83
    1
    Add To Cart
  • 12573338
    CAP, OIL FILLER(SAE 10W30, SEAL)(INCLUDES 570)(NON-VENTED)
    MSRP: $15.11
    $8.32
    1
    Add To Cart
  • GASKET KIT, Manifold to Cylinder Head
    19355655
    GASKET KIT, INTAKE MANIFOLD(INCLUDES 515,541)(INCLUDES RECTANGULAR COOLANT MANIOLD GASKET & 0-RING GASKETS)
    MSRP: $105.12
    $66.82
    1
    Add To Cart
  • 89017554
    GASKET KIT, UPPER INTAKE MANIFOLD(INCLUDES 545,556,560)(INCLUDE UPPER INTAKE MANIFOLD GASKET,T/BODY SEAL,PCV VALVE PIPE)
    • Replaced By:
      19434071
    MSRP: $63.24
    $38.21
    1
    Add To Cart
  • GASKET, Emission System
    12567275
    GASKET, EGR VALVE(BETWEEN EGR VALVE & EGR BRACKET)
    MSRP: $19.27
    $10.23
    5
    Add To Cart
  • 5617102
    GASKET, OXYGEN SENSOR(PART OF 538)
    MSRP: $8.90
    $4.71
    1
    Add To Cart
  • STUD, Intake & Exhaust Manifold
    24502332
    STUD, EXHAUST MANIFOLD(TO CYL HEAD-UPPER & LOWER FRONT-CENTER-REAR)(5/16-18X#8 MACHINE THREAD X 50MM LG)
    • Require Quantity:
      07
    • Package Quantity:
      5
    MSRP: $1.62
    $1.03
    5
    Add To Cart
  • Buick 24502453
    24502453
    STUD, INTAKE MANIFOLD(UPPER TO LOWER)(STUD..6X1X86.8 - 6X1X15)
    MSRP: $4.95
    $2.36
    1
    Add To Cart
  • Buick 24508181
    24508181
    STUD, INTAKE MANIFOLD(HEX FLANGED HEAD,5/16-18-31,13.1 THREAD,W/GM6124M ADHESIVE)
    MSRP: $5.26
    $3.32
    1
    Add To Cart
  • 24501847
    BOLT, Exhaust Pipe, BOLT,EXHAUST CROSSOVER PIPE FLANGE(TO LEFT EXHAUST MANIFOLD)(M8X1.25X44)(3.275)
    • Require Quantity:
      02
    • Package Quantity:
      1
    MSRP: $8.21
    $7.83
    1
    Add To Cart
  • 24100002
    SEAL, Engine Crankcase, SEAL,OIL FILLER TUBE(O RING)(PART OF 569,571)(27.94MM INNER DIAMETER)(SIZE #320)
    • Require Quantity:
      02
    • Package Quantity:
      5
    MSRP: $5.33
    $2.67
    5
    Add To Cart
  • 11589156
    STUD, Exhaust Pipe, STUD,EXHAUST CROSSOVER PIPE(TO RIGHT MANIFOLD - FOR POWER BRAKE BOOSTER HEAT SHIELD)
    • Require Quantity:
      02
    • Package Quantity:
      1
    MSRP: --
    $13.05
    1
    Add To Cart
  • BOLT, Intake & Exhaust Manifold
    24506498
    BOLT, INTAKE MANIFOLD(UPPER TO LOWER)(M6X1X36,4.5 DOG POINT)(25 THREAD,15 O.D. HEAD, 10.9, 7114M,W/6124M ADHESIVE)
    • Require Quantity:
      07
    • Package Quantity:
      1
    MSRP: $6.08
    $3.86
    1
    Add To Cart
  • Buick 24503271
    24503271
    BOLT, EXHAUST MANIFOLD(TO LEFT HEAD)(5/16-18 X 25 1/2)
    MSRP: $34.39
    $21.87
    1
    Add To Cart
  • Buick 24505205
    24505205
    BOLT, INTAKE MANIFOLD(UPPER TO LOWER HOLE #MM02)(M6X1X86.8 W/ADHESIVE)
  • 11588711
    BOLT, HEX FLANGED HEAD,M6X1X16, 10 THREAD, 14.2 OUTSIDE DIAMETER, 8.8 STEEL, GMW3359(ENGINE WIRING HARNESS BRACKET)
    MSRP: $7.20
    $4.57
    1
    Add To Cart
  • 11514596
    NUT, HEX FLANGED HEAD,M8X1.25,17.9 OUTSIDE DIAMETER,738 THICK,13MM HEXAGON,10, PHOSPHATE ZINC ORGANIC - FLAKE(EGR VALVE)(8.915)
    • Require Quantity:
      02
    • Package Quantity:
      1
    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(SECONDARY AIR INJECTION PIPE BRACKET)(8.915)
    • Require Quantity:
      02
    • Package Quantity:
      1
    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(FUEL INJECTOR SIGHT SHIELD BRACKET)(8.915)
    • Require Quantity:
      02
    • Package Quantity:
      1
    MSRP: $7.01
    $4.03
    1
    Add To Cart
  • 11516328
    BOLT, HEX FLANGED HEAD,M10X1.5X30,22 O.D.,HEADER POINT,10.9,7114M(EGR VALVE ADAPTER)
    • Require Quantity:
      02
    • Package Quantity:
      5
    MSRP: $4.12
    $2.62
    5
    Add To Cart
  • 11515755
    BOLT, HEXAGON,M8X1.25X16,15 THREAD,18 O.D.,10.9,7114M(STARTER SHIELD)(TOGETHER WITH 12345493 REPLCS 25534835)
    MSRP: --
    $13.05
    1
    Add To Cart
  • 3530297
    NUT, HEX FLANGED HEAD,M6X1,5.85THK,14.2 O.D.,10,ZINC ORGANIC(FUEL INJECTOR)
    • Fitting Vehicle Options:
      H
    • Require Quantity:
      04
    • Package Quantity:
      1
    MSRP: $7.26
    $4.05
    1
    Add To Cart
  • 3530297
    NUT, HEX FLANGED HEAD,M6X1,5.85THK,14.2 O.D.,10,ZINC ORGANIC(ENGINE WIRING HARNESS SHIELD)
    • Fitting Vehicle Options:
      H
    MSRP: $7.26
    $4.05
    1
    Add To Cart
  • 11515744
    NUT, HEX FLANGED HEAD,M12X1.75,14THK,25.6 O.D.,10,ZINC COATED(POWER BRAKE BOOSTER HEAT SHIELD)
    • Require Quantity:
      02
    • Package Quantity:
      1
    MSRP: $7.20
    $4.57
    1
    Add To Cart
  • 11561025
    BOLT, HEX FLANGED HEAD,M6X1X16,13.5 THREAD,14.2 OUTSIDE DIAMETER,GMW25 STEEL,GMW3200,MACHINE,HEADER POINT(THROTTLE BODY)
    • 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(ACCELERATOR CONTROL CABLE BRACKET)
    • Require Quantity:
      02
    • Package Quantity:
      1
    MSRP: $8.90
    $5.65
    1
    Add To Cart
  • 11609746
    NUT, HEX FLANGED HEAD,M8X1.25,8.9THK,17.6 O.D.,10 STEEL,GMW3200, PREVENT TORQUE(EXHAUST MANIFOLD)
    • Require Quantity:
      04
    • Package Quantity:
      12
    MSRP: $4.30
    $2.73
    12
    Add To Cart
  • 11518075
    BOLT, HEX FLANGED HEAD, THREAD 22, OUTSIDE DIAMETER 17, 8.8, GMW14C-POINT, HEADER POINT(EGR VALVE ADAPTER PIPE)
    • Require Quantity:
      02
    • Package Quantity:
      1
    MSRP: $18.56
    $11.80
    1
    Add To Cart
  • 9440227
    BOLT, HEX FLANGED HEAD,5-16-18X1.25,.66 O.D.HEADER POINT,PO(INTAKE MANIFOLD)
    • Require Quantity:
      12
    • Package Quantity:
      1
    MSRP: $2.36
    $1.51
    1
    Add To Cart
  • 24504922
    BOLT, HEX FLANGED HEAD,TORX,W/ADH,10X1.5X37.5,35THD,17.5 O.D.,10.9,7114M(USE W/SEALER(12345493))
    MSRP: $5.28
    $2.94
    10
    Add To Cart
  • 24504922
    BOLT, HEX FLANGED HEAD,TORX,W/ADH,10X1.5X37.5,35THD,17.5 O.D.,10.9,7114M(EVAP EMISSION CANISTER PURGE SOLENOID VALVE BRACKET)
    MSRP: $5.28
    $2.94
    10
    Add To Cart
  • Buick 11519842
    11519842
    STUD, STRGHT,M6X1X16,M6X1X22,40.3TL,9.8,7114M,SIDE A:DOG POINT,SIDEB:TORX(THROTTLE BODY)
    MSRP: $5.26
    $3.32
    1
    Add To Cart
  • 11516424
    BOLT, HEX FLANGED HEAD,M6X1X25,14.2 O.D.,HEADER POINT,9.8,PHOSPHATE ZINC ORGANIC(PART OF 542)
    • Require Quantity:
      02
    • Package Quantity:
      1
Genuine GM Parts, the Right Choice
GMPartsGiant.com offers the wholesale prices for genuine 2003 Buick Lesabre 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 3.8L. Model Code: CUSTOM, LIMITED.