Emission Controls fit your 1991 Buick Lesabre

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1991 Buick Lesabre

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Vehicle Options

6 Cyl 3.8L MFI; 4-Speed Automatic Transmission, THM440-T4/4T60

Vehicle Options

6 Cyl 3.8L MFI; 4-Speed Automatic Transmission, THM440-T4/4T60

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Currently selected

Fuel System, Exhaust, Emission System

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, Fascias

Front End Sheet Metal, Heater

Front Suspension, Steering

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

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Recommended

Part No. & Part Description

Price & Qty.

Part No. &
Part Description

SENSOR, Computer Control Sensors

15326386
SENSOR, COOLANT TEMPERATURE
$51.06 $27.06
1
Add To Cart
19211437
SENSOR, EXHAUST OXYGEN
$33.26 $18.54

25098058
VALVE, Engine Crankcase, VALVE, CRANKCASE VENT CONTROL

RELAY, A/C Electrical

25530733
RELAY, A.C. COMPRESSOR
$15.55 $10.40
1
Add To Cart
25553347
RELAY, A/C COMPRESSOR (1990-91)(2.815)
$2.39 $1.52
25530731
RELAY, A.C. COMPRESSOR (1988-89)
25530731
RELAY, BLOWER MOTOR

25553347
RELAY, Engine Air Cooling(Electrical), RELAY, ENGINE COOLANT FAN (2.815)
$2.39 $1.52

12337892
BOLT, Radio Mounting, BOLT, U NUT & STUD (M5X.8X10)

25526950
ELBOW, Engine Crankcase, ELBOW, VENT PIPE (RUBBER GROMMET)(1988 1ST DESIGN)(*02)

BOLT, Distributor (also Knock Sensor)

12537114
BOLT, CRANKSHAFT POSITION SENSOR BRACKET
$12.60
1
Add To Cart
25526395
BOLT, FUEL & IGNITION CAM SENSOR TO FRONT COVER

3041596
SWITCH, A/C Compressor (Internal Parts), SWITCH, PRESSURE CYCLING CUTOFF

17091147
VALVE, Emission Control System, VALVE,EGR

25530733
RELAY, Fuel Pump, RELAY, FUEL PUMP (1.055)
$15.55 $10.40
1
Add To Cart

25537222
GASKET, Intake Manifold Vacuum, GASKET, VACUUM BLOCK HARNESS MANIFOLD
$6.06 $4.35
1
Add To Cart

SENSOR, Distributor (also Knock Sensor)

12537111
SENSOR, CRANKSHAFT POSITION
$80.07 $24.89
1
Add To Cart
10456019
SENSOR, ELECTRONIC SPARK CONTROL KNOCK
25530325
SENSOR, CAMSHAFT POSITION

11508039
BOLT, BOLT, HEXAGON (M10X1.5X65) 10.9 PHOSPHATE ORGANIC
$13.05
1
Add To Cart

1635540
STUD, Multi PORTION Fuel Injection Throttle Body, STUD, THROTTLE BODY (M8X1.25X15)(3.275)
$9.35 $5.94
1
Add To Cart

24504713
BOLT, Engine Coolant Pump, BOLT, FRONT COVER (1988-90)(1.840)
$9.36 $5.95
10
Add To Cart

ADAPTER, Emission System

25530446
ADAPTER, THROTTLE BODY & EGR VALVE
$85.56 $44.82
1
Add To Cart
25532503
ADAPTER, EGR VALVE TO THROTTLE BODY ADAPTER

25530593
SWITCH, A/C Electric Temperature and Motor Control, SWITCH,A/C COMPRESSOR REFRIGERANT PRESSURE
$35.99 $15.17
1
Add To Cart

25535027
GASKET, Emission System, GASKET, EGR VALVE
$12.60
1
Add To Cart

10048662
STUD, Accelerator Pedal Lever, STUD, ACCELERATOR CONTROL BRACKET (0.004)

10066675
STUD, Fuel Injection, STUD, FUEL INJECTION TO INTAKE MANIFOLD (1990-91)(3.275)

10075405
RETAINER, Cruise Control, RETAINER, VACUUM RELEASE VALVE (1988-90)

12537113
BRACKET, Distributor (also Knock Sensor), BRACKET,CRANKSHAFT POSITION SENSOR

GROMMET, Engine Crankcase

1381487
GROMMET, INTAKE MANIFOLD CRANKCASE VENT VALVE
14001192
GROMMET, CRANKCASE VENT PIPE (1988 2ND DESIGN)(1989-91)(*02,03)
25536368
GROMMET, CRANKCASE VENT VALVE

17085935
CANISTER, Fuel Tank Evaporator/Purge Control, CANISTER, FUEL VAPOR

17092181
COVER, Emission Control System, COVER, EGR VALVE

22523204
BRACKET, Fuel Tank Evaporator/Purge Control, BRACKET,EVAP EMISSION CANISTER(RETAINER)

GASKET, Multi PORTION Fuel Injection Throttle Body

24500382
GASKET, THROTTLE BODY COOLANT OUTLET PIPE
25529581
GASKET, THROTTLE BODY & EGR VALVE ADAPTER (THREE BOLT HOLE)
25532324
GASKET, THROTTLE BODY (TWO BOLT HOLE)

24500552
BOLT, Emission Control System, BOLT,EGR VALVE ADAPTER(1991)(LN3)

24500714
HARNESS, Engine Vacuum Pump, HARNESS,VACUUM SOURCE(CRUISE & VACUUM BRAKE)(3.675)(LN3)

PIPE, Throttle Body Coolant Supply

24501035
PIPE, THROTTLE BODY HEAT OUTLET(CMPTS SERVICE)
25533986
PIPE, THROTTLE BODY COOLANT INLET (CMPTS SERVICE)

24502754
CLAMP, Air Cleaner Intake, CLAMP, AIR INTAKE DUCT

24504717
STUD, Engine Front Cover, STUD, FRONT COVER THROUGH FRONT TO BLOCK (1991)

24504791
STUD, Generator Mounting, STUD, GENERATOR SUPPORT TO CYL HEAD (1989-91)

25037250
SENSOR, Coolant Temperature (Engine Unit), SENSOR, COOLANT TEMPERATURE INDICATOR & GAGE(*05)

25509432
VALVE, Cruise Control, VALVE, CRUISE CONTROL VACUUM RELEASE (1988-90)

25523507
RETAINER, Fuel Tank Evaporator/Purge Control, RETAINER,FUEL VAPOR CANISTER

25530083
DUCT, Air Cleaner Intake, DUCT, REAR AIR INTAKE

BRACKET, Emission Control System

25530108
BRACKET, ECM
25530109
BRACKET, ECM

25530374
HARNESS, Evaporation Emission System(Fuel Tank End), HARNESS, VACUUM MOD & FUEL VAPOR CANISTER (4.205)

25530517
COVER, Fuel Vapor Canister Purge, COVER, FUEL VAPOR CANISTER (1988)

25530610
BOLT, Intake Manifold Vacuum, BOLT, HARNESS VACUUM MANIFOLD

25530732
BRACKET, A/C Electrical, BRACKET, BLOWER MOTOR RELAY

25530812
GASKET, Emission Control System, GASKET, EGR VALVE ADAPTER

25530972
VALVE, Fuel Tank Evaporator/Purge Control, VALVE, FUEL VAPOR CANISTER PURGE (3.140)

25532504
PIPE, Emission System, PIPE, EGR

BRACKET, Main Wiring Junction and Fuse Block

25533443
BRACKET, MULTIUSE RELAY (FRONT OF DASH)(1990)
25559817
BRACKET, MULTIUSE RELAY-RH (INSIDE OF CAR)
25559817
BRACKET, MULTIUSE RELAY (FRONT OF DASH)(1988-89)
25601552
BRACKET, MULTIUSE RELAY (FRONT OF DASH)(1991)

25533568
HOSE, Engine Crankcase Ventilation, HOSE, CRANKCASE VENT (TO THROTTLE BDY)(1988 1ST DESIGN)(*02)

25533606
TUBE, Engine Crankcase Ventilation, TUBE, CRANKCASE VENT (1988 2ND DESIGN)(1989-91)(*02,03)

SEAL, Throttle Body Coolant Supply

25533988
SEAL, O RING THROTTLE BODY INLET PIPE TO INTAKE
25533989
SEAL, THROTTLE BODY OUTLET & INTAKE PIPE

25536657
SUPPORT, Generator Mounting, SUPPORT, GENERATOR

25551820
SWITCH, Electronic Brake Control, SWITCH,ELECTRONIC BRAKE CONTROL BRAKE PEDAL & CRUISE CONTROL VACUUM RELEASE VALVE & TORQUE CONVERTER CLUTCH((1991)(4.710))

25558149
BRACKET, Engine Air Cooling(Electrical), BRACKET, FAN RELAY MOUNTING

3532954
SENSOR, Fuel Pump Pressure, SENSOR, FUEL PUMP SWITCH & ENGINE OIL PRESSURE GAGE(*05)

8661914
SENSOR, Speedometer Drive, SENSOR,VEHICLE SPEED(W/GOVERNOR COVER & SEAL)

88999198
MODULE, Emission Control System, MODULE, ENGINE CONTROL
$322.88 $181.09

11514596
NUT, HEX FLANGED HEAD (M8X1.25) 10 PHOSPHATE ELECTRO ORGANIC
$12.60
1
Add To Cart

11609489
BOLT, HEX WASHER HEAD (M4.2X1.41X25) PHOSPHATE ZINC ORGANIC
- Replaced By: 11547421
$9.75 $6.79
1
Add To Cart

25518880
CLAMP, WORM GEAR (.250 TO .625) SST BLA
$3.91 $2.45
5
Add To Cart

3907444
NUT (.370 SQUARE HOLE.250 HEAD) NYLON
$6.91 $4.38
1
Add To Cart

12337828
SCREW, HEXAGON W/FLAT WASHER (M6.3X1.81X20) 6010M PHOSPHATE ZINC ORGANIC
- Replaced By: 22527475
$10.91 $6.94
1
Add To Cart

19188397
O RING (.301X.070 THICK)
$12.60
10
Add To Cart

11514527
NUT, HEXAGON FLANGE (M5X.8) 9 ZINC
$9.18 $5.83
1
Add To Cart

22527587
CLAMP, WORM GEAR (1/2 TO 13/16) SST BLA
- Replaced By: 11517127
$6.83 $4.57
1
Add To Cart

52450548
O RING (.35 IDX.072 THICK)(9.172)
$3.42 $1.91
10
Add To Cart

9438257
HOSE (1/4)(*06)
$93.30 $59.30
1
Add To Cart

10067660
BOLT, HEX FLANGED HEAD (M8X1.25X45) 9.8 SST (1988-90)
$6.69 $4.25
1
Add To Cart

11507095
NUT, HEXAGON (M6X1) 9 PHOSPHATE ELECTRO ORGANIC
$0.42 $0.34
1
Add To Cart

11515203
SCREW, HEX FLANGED HEAD (M6X1X16) PHOSPHATE ELECTRO ORGANIC
$5.86 $3.72
1
Add To Cart

11508040
BOLT, HEXAGON W/CONICAL WASHER (M8X1.25X25) 9.8 PHOSPHATE ELECTRO ORGANIC
$3.36 $2.13

12548430
TUBING, BRAKE,1/4" X 16 FT ROLL,STEEL(FUEL VAPOR (1/4) STEEL (8.964))(AS REQUIRED)
$67.04 $37.37

11509192
BOLT, HEXAGON W/CONICAL WASHER (M5X.8X16) 9.8 PHOSPHATE

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 1991 Buick Lesabre parts. Parts like Emission Controls 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: 2 DOOR, CUSTOM 4 DOOR, LIMITED 2 DOOR, LIMITED 4 DOOR.