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Parts found for 1991 Buick Regal > Fuel System, Exhaust, Emission System > Emission Controls

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  •  
    BODY, Fuel Injection Air Meter Make Sure These Fit  
  • BODY, THROTTLE(COMPONENT PARTS SERVICED)(*02)
    Fitting Vehicle Options: W(FOR MDL APPL & POA SEE THROT BODY CHT)
    --
    --
  • BODY, THROTTLE(COMPONENT PARTS SERVICED)(*02)
    Fitting Vehicle Options: W(L27)
    --
    --
  •  
    BOLT, Emission Control System Make Sure These Fit  
  • BOLT, EGR VALVE
    --
    $18.35
  • BOLT, EGR VALVE
    $7.99
    $5.10
  • BOLT, ECM(ECM)(M5X.8X16 THREAD)(SPECIAL)
    Fitting Vehicle Options: W
    $2.32
    $1.30
  • BOLT, Generator Mounting
    BOLT,GENERATOR SUPPORT(TO CYL HEAD(HEX FLANGED HEAD M10X1.5X65,21.5 O.D.,CADMIUM,10.9)(HEX FLANGED HEAD M10X1.5X65)(8.900)
    $1.78
    $1.14
  •  
    BOLT, Intake & Exhaust Manifold Make Sure These Fit  
  • BOLT, INTAKE MANIFOLD PLENUM (1989-90)
    $1.28
    $0.82
  • BOLT, INTAKE MANIFOLD PLENUM (1991)
    --
    --
  •  
    BRACKET, Fuel Tank Evaporator/Purge Control Make Sure These Fit  
  • BRACKET, FUEL VAPOR CANISTER
    --
    --
  • BRACKET, EVAP EMISSION CANISTER
    Fitting Vehicle Options: W
    --
    --
  •  
    CANISTER, Fuel Tank Evaporator/Purge Control Make Sure These Fit  
  • CANISTER, FUEL VAPOR
    --
    --
  • CANISTER, EVAP EMISSION
    Fitting Vehicle Options: W(L27)
    --
    --
  •  
    CLAMP, Air Cleaner Intake Make Sure These Fit  
  • CLAMP, AIR INTAKE DUCT
    $10.31
    $6.93
  • CLAMP, AIR INTAKE DUCT REAR TO AIR CLEANER
    $10.31
    $6.93
  •  
    COVER, Chassis Electrical Make Sure These Fit  
  • COVER, ENGINE WIRING HARNESS ECM CONNECT
    --
    $25.57
  • COVER, ENGINE WIRING HARNESS ECM CONNECT
    Fitting Vehicle Options: W
    --
    $25.57
  •  
    COVER, Main Wiring Junction and Fuse Block Make Sure These Fit  
  • COVER, RELAY (CONVENIENCE CENTER)
    --
    --
  • COVER, CONVENIENCE CENTER RELAY((LOWER))
    --
    $18.70
  • COVER, CONVENIENCE CENTER RELAY((UPPER))
    --
    --
  •  
    DUCT, Air Cleaner Intake Make Sure These Fit  
  • DUCT, AIR INTAKE REAR
    --
    --
  • DUCT, REAR INTAKE AIR
    Fitting Vehicle Options: W(L27)
    --
    --
  •  
    EPROM, Emission Control System Make Sure These Fit  
  • EPROM, ECM((4648ASHZ)(ALSO PART OF 38)
    Fitting Vehicle Options: W(L27,ME9,NA5)
    --
    --
  • EPROM, ECM(4648ASHZ,6802AWRA,0154AXDN)(ALSO PART OF 38)
    Fitting Vehicle Options: W(L27,ME9,NA5)
    --
    --
  • EPROM, ECM(4880ASJA,6808AWRB,0149AXDP)(ALSO PART OF 38)
    Fitting Vehicle Options: W(L27,ME9,NB2)
    --
    --
  •  
    GASKET KIT, Manifold to Cylinder Head Make Sure These Fit  
  • GASKET KIT, INTAKE MANIFOLD PLENUM (1990)(1991 TYPE 1 VIN 400001-800000)
    $11.31
    $7.22
  • GASKET KIT, INTAKE MANIFOLD PLENUM (1991)(1991 TYPE 2 VIN 400001 & GREATER)
    --
    --
  •  
    GASKET, Emission System Make Sure These Fit  
  • GASKET, EGR VALVE(3.671)
    $11.42
    $6.39
  • GASKET, OXYGEN SENSOR
    Fitting Vehicle Options: W
    --
    $14.55
  •  
    GASKET, Multi Port Fuel Injection Throttle Body Make Sure These Fit  
  • GASKET, THROTTLE BODY
    $3.12
    $1.97
  • GASKET, THROTTLE BODY(INTAKE MANIFOLD TO THROTTLE BODY)
    Fitting Vehicle Options: W(L27)
    $13.02
    $7.29
  •  
    HARNESS, Chassis Wiring Make Sure These Fit  
  • HARNESS, ECM WIRING (1990)(1991 TYPE 1 VIN 400001-800000)
    --
    --
  • HARNESS, ECM WIRING (1991)(1991 TYPE 2 VIN 800000 & GREATER)
    --
    --
  • HARNESS, ECM WIRING(IF A GREEN ECM CONNECT IS ON SERVICE HARNESS THE ECM CONNECT WILL VARY FROM OEM AS FOLLOWS:RED=GREEN, DARK GRAY=BROWN, PURPLE=RED, BROWN=DARK GRAY)
    Fitting Vehicle Options: W19(L27,UB3)(TYPE 1 VIN 400001-800000)
    $1254.37
    $630.01
  • HARNESS, ECM WIRING(IF A GREEN ECM CONNECT IS ON SERVICE HARNESS THE ECM CONNECT WILL VARY FROM OEM AS FOLLOWS:RED=GREEN, DARK GRAY=BROWN, PURPLE=RED, BROWN=DARK GRAY)
    Fitting Vehicle Options: W19(L27,U21)(TYPE 2 VIN 800001 & GREATER), W57(L27,U21)
    --
    --
  • HARNESS, ECM WIRING(IF A GREEN ECM CONNECT IS ON SERVICE HARNESS THE ECM CONNECT WILL VARY FROM OEM AS FOLLOWS:RED=GREEN, DARK GRAY=BROWN, PURPLE=RED, BROWN=DARK GRAY)
    Fitting Vehicle Options: W19(L27,UH6)(TYPE 2 VIN 800001 & GREATER), W57(L27,UH6)
    --
    --
  • HARNESS, ECM WIRING(IF A GREEN ECM CONNECT IS ON SERVICE HARNESS THE ECM CONNECT WILL VARY FROM OEM AS FOLLOWS:RED=GREEN, DARK GRAY=BROWN, PURPLE=RED, BROWN=DARK GRAY)
    Fitting Vehicle Options: W19(L27,UH6)(TYPE 1 VIN 400001-800000)
    --
    --
  •  
    HARNESS, Emission System Make Sure These Fit  
  • HARNESS, EGR VALVE VACUUM (1989)
    --
    --
  • HARNESS, EGR VALVE VACUUM (1990-91)
    --
    --
  •  
    HARNESS, Engine Wiring Make Sure These Fit  
  • HARNESS, ENGINE & ECM WIRING (1989)(*02)
    $898.17
    $441.04
  • HARNESS, ENGINE WIRING (1990)(1991 TYPE 1 VIN 400001-800000)
    --
    --
  • HARNESS, ENGINE WIRING (1991)(1991 TYPE 2 VIN 800000 & GREATER)
    --
    --
  • HARNESS, ELECTRONIC IGNITION CONTROL MODULE WIRING
    Fitting Vehicle Options: W(L27)
    --
    --
  •  
    MODULE, Emission Control System Make Sure These Fit  
  • MODULE, ENGINE CONTROL(1989-91)
    --
    $225.16
  • MODULE, ENGINE CONTROL(REMANUFACTURED-NOT FOR SALE WHERE IMPORTS ARE RESTRICTED)
    Fitting Vehicle Options: W(L27)
    --
    $192.57
  •  
    PIPE, Fuel Line Make Sure These Fit  
  • PIPE, F/FEED/ATCH TO FUEL INJECTION RAIL(*01)
    --
    --
  • PIPE, F/RETURN FRONT/ATTCH TO FUEL INJECTION RAIL(*01)
    --
    $26.88
  •  
    SENSOR, Computer Control Sensors Make Sure These Fit  
  • SENSOR, EXHAUST OXYGEN
    $29.47
    $16.49
  • SENSOR, MAP (1989-91)
    $98.29
    $54.97
  • SENSOR, AIR CLEANER AIR TEMPERATURE(FOR MODULE APPLICATION & POA INFORMATION SEE AIR CLEANER CHART)(KIT)
    Fitting Vehicle Options: W
    $39.66
    $22.21
  • SENSOR, ENGINE COOLANT TEMPERATURE(ECM FUNCTION)(2-WAY MALE)(MATING CONNECT W/LEADS USE 88987993)(USED FOR CLUSTERS W/OIL GAGE & LIGHT COMBINATION)(USE W/12101899 CONNECT)
    Fitting Vehicle Options: W(L27)
    $34.78
    $19.45
  •  
    SENSOR, Coolant Temperature (Engine Unit) Make Sure These Fit  
  • SENSOR, COOLANT TEMPERATURE (UB3)
    $76.18
    $43.94
  • SENSOR, ENGINE COOLANT TEMPERATURE GAGE(2 BLADE TERMINAL)(CAN BLACK ENAMEL USED AS 1 TERMINAL CONNECT)(3/8-18 THREAD)(3/8-18 THREAD)(MATING CONNECT W/LEADS USE 12126458)
    Fitting Vehicle Options: W(L27)
    $35.23
    $19.71
  • SENSOR, ENGINE COOLANT TEMPERATURE(ALL MAKES)
    Fitting Vehicle Options: WB19(L27), WB57(L27), WD19(L27), WD57(L27)
    $49.25
    $27.54
  • SENSOR, ENGINE COOLANT TEMPERATURE(ECM FUNCTION)(2-WAY MALE)(MATING CONNECT W/LEADS USE 88987993)(3.682)(USED FOR CLUSTERS W/OIL GAGE & LIGHT COMBINATION)(USE W/12101899 CONNECT)
    Fitting Vehicle Options: W(L27)
    $34.78
    $19.45
  •  
    SENSOR, Distributor (also Knock Sensor) Make Sure These Fit  
  • SENSOR, ELECTRONIC SPARK CONTROL KNOCK
    $100.43
    $56.16
  • SENSOR, IGNITION TIMER
    $59.96
    $33.54
  • SENSOR, CAMSHAFT POSITION(3 PINION TERMINAL)(W/WIRE LEAD)(1 BOLT HOLE)
    Fitting Vehicle Options: W(L27)
    $70.71
    $39.54
  • SENSOR, CRANKSHAFT POSITION
    Fitting Vehicle Options: W(L27)
    $78.46
    $43.88
  • SENSOR, KNOCK(BUTTON TYPE TERMINAL)(1/4-18 THREAD)
    Fitting Vehicle Options: W(L27)
    $100.02
    $55.94
  •  
    SHIELD, Main Wiring Junction and Fuse Block Make Sure These Fit  
  • SHIELD, FUSE BLOCK (UPPER) (1989-90)(1991 TYPE 1 VIN 400001-800000)
    --
    --
  • SHIELD, FUSE BLOCK( (1991)(1991 TYPE 2 VIN 800000 & GREATER))(LH0)
    --
    $16.24
  •  
    STUD, Engine Front Cover Make Sure These Fit  
  • STUD, ENGINE FRONT COVER(THROUGH FRONT TO BLOCK)(HEXAGON W/.65 OUTSIDE DIAMETER FL WASHER,5/16-18X1.53 & .31X.66 W/GROOVE,300M,PC)(HEXAGON W/.65 OUTSIDE DIAMETER X .06 THICK WASHER, 5/16-18X1.53 W/1.1 THREAD)
    Require Qty: 03
    Package Qty: 1
    $8.50
    $5.43
  • STUD, ENGINE FRONT COVER(WASHER,5/16-18X38.9,9/8X1.25X18,18.5 OUTSIDE DIAMETER,FULL THDS,HRD WASHER 10.9,PLATE STEEL,)
    --
    --
  • STUD, Generator Mounting
    STUD,GENERATOR SUPPORT(TO CYD HEAD(W/CONICAL 21 OUTSIDE DIAMETER,M10X1.5X57.5,M10X1.5X28.5,93.8TL)(2.383)
    Require Qty: 02
    Package Qty: 1
    --
    $17.67
  •  
    SWITCH, A/C Electric Temperature and Motor Control Make Sure These Fit  
  • SWITCH, COMPRESSOR ENGINE COOLANT TEMPERATURE (1989 EXCEPT K06)
    $25.94
    $22.46
  • SWITCH, COMPRESSOR ENGINE COOLANT TEMPERATURE (1989 K06)(1990)
    --
    --
  •  
    SWITCH, Engine Oil Pressure/Temperature Make Sure These Fit  
  • SWITCH, OIL PRESSURE INDICATOR & FUEL PUMP (UH6)(1989-90)(1991 TYPE 1 VIN 400001-800000)
    $29.17
    $16.31
  • SWITCH, OIL PRESSURE INDICATOR & FUEL PUMP (UH6)(1991)(1991 TYPE 2 VIN 800000 & GREATER)
    $29.72
    $16.62
  •  
    VALVE, Emission Control System Make Sure These Fit  
  • VALVE, EGR (PRODUCT 17090077)(1989)
    --
    --
  • VALVE, EGR (PRODUCT 17090077)(1990-91)
    $520.86
    $291.32
  •  
    VALVE, Engine Crankcase Make Sure These Fit  
  • VALVE, CRANKCASE VENT (CV892C)
    --
    --
  • VALVE, PCV(ALSO PART OF 21)(PCV VALVE IS FOR USE IN NON-RIVETED ROCKER ARM COVERS ONLY)
    Fitting Vehicle Options: W(L27)
    --
    --
  •  
    VALVE, Fuel Tank Evaporator/Purge Control Make Sure These Fit  
  • VALVE, FUEL VAPOR CANISTER PURGE
    $48.63
    $27.20
  • VALVE, EVAP EMISSION CANISTER PURGE SOLENOID
    Fitting Vehicle Options: W(L27)
    --
    --
  •  
    Standard Parts Make Sure These Fit  
  • ADHESIVE/SEALANT, THREADLOCKER HIGH STRENGTH 10ML ERI(INTAKE MANIFOLD)(89021297 SERVICED TOGETHER WITH BOLT 11517188)
    Replaced by: 19332211
    $19.76
    $11.07
  • BOLT, HEX FLANGED HEAD (M10X1.5X20) 9.8 PHOSPHATE ZINC ORGANIC
    --
    --
  • BOLT, HEX FLANGED HEAD (M6X1X16) 9.8 PHOSPHATE ORGANIC
    $0.74
    $0.47
  • BOLT, HEX FLANGED HEAD (M6X1X20) 9.8 PHOSPHATE ZINC ORGANIC
    Replaced by: 11503782
    $4.81
    $3.07
  • BOLT, HEX FLANGED HEAD (M8X1.25X16) 9.8 PHOSPHATE ZINC ORGANIC
    $1.55
    $1.00
  • BOLT, HEX FLANGED HEAD (M8X1.25X20) 10.9 PHOSPHATE ORGANIC
    $1.55
    $1.00
  • BOLT, HEX FLANGED HEAD (M8X1.25X25) 9.8 PHOSPHATE ORGANIC
    --
    --
  • BOLT, HEX FLANGED HEAD (M8X1.25X45) 9.8 SST
    $8.45
    $5.40
  • BOLT, HEXAGON (M8X1.25X30) 9.8 ZINC
    $5.63
    $3.60
  • BOLT, HEXAGON W/CONICAL WASHER (M8X1.25X16) 9.8 PHOSPHATE ZINC ORGANIC
    $5.88
    $3.75
  • BOLT, HEAVY HEXAGON HEAD,M8X1.25X12,18 O.D.,10.9,PHOSPHATE ZINC ORGANIC(FUEL VAPOR CANISTER PURGE SOLENOID VALVE)
    $5.88
    $3.75
  • BOLT, HEX FLANGED HEAD, M8X1.25X20,17THD,18 O.D.,10.9,7114M(FUEL INJECTOR)
    $1.55
    $1.00
  • BOLT, HEX FLANGED HEAD,5-16-18X1.25,.66 O.D.HEADER POINT,PO(INTAKE MANIFOLD)
    $5.49
    $3.51
  • BOLT, HEX FLANGED HEAD,M6X1X16,13.5 THREAD,14.2 OUTSIDE DIAMETER,GMW25 STEEL,GMW3200,MACHINE,HEADER POINT(CRANKCASE CENT VALVE COVER)(ALSO PART OF 21)
    $0.74
    $0.47
  • BOLT, HEXAGON W/CONICAL WASHER,M6X1X20(ENGINE WIRING HARNESS CLIP)
    $1.78
    $1.14
  • BOLT, HEXAGON,W/FL WASHER,M5X0.8X20,FULL THREAD,14 O.D.,9.8,PHOSPHATE ELECTRO ORGANIC(ACCELERATOR CONTROL CABLE BRACKET)
    $4.66
    $2.96
  • CLAMP, WORM GEAR (15.7 TO 31.8) SST
    $4.40
    $3.05
  • CLAMP, WORM GEAR,14.22-26.92 DIAMETER, 13.25 THICK, STAINLESS STEEL.(ALSO PART OF 67)(AS REQUIRED)
    $3.48
    $2.22
  • CONNECTOR, WEATHER RESISTANT 3 WAY
    $48.28
    $27.00
  • $76.65
    $48.93
  • $145.19
    $92.69
  • HOSE, 13MMX25',ROLL(FUEL VAPOR FRONT)
    $76.65
    $48.93
  • HOSE, BULK 5/32X25FT(FUEL PRESSURE REGULATOR VACUUM)(ALSO PART OF 18 & 46)
    --
    $31.81
  • HOSE, FUEL-OIL EVAP(FUEL VAPOR REAR)
    $145.19
    $92.69
  • NUT, HEX FLANGED HEAD (M8X1.25) PHOSPHATE ELECTRO ORGANIC
    $4.54
    $2.89
  • NUT, HEXAGON FLANGE (M5X0.8) 9 ZINC
    $4.66
    $2.96
  • NUT, HEX FLANGED HEAD,M8X1.25,17.9 OUTSIDE DIAMETER,738 THICK,13MM HEXAGON,10, PHOSPHATE ZINC ORGANIC - FLAKE(THROTTLE BODY)(8.915)
    $4.54
    $2.89
  • NUT, HEXAGON FLANGE M5X0.8 GRD 9 ZINC COATED (DIPPED OR PLATED)(ECM BRACKET)
    $4.66
    $2.96
  • NUT, HEXAGON M6X1X5.5 9 PHOSPHATE ELECTRO ORGANIC(ELECTRONIC IGNITION MODULE)
    $0.41
    $0.26
  • PLUG, HEXAGON SOCKET,1/4-18X.69,DOG POINT(ELECTRONIC SPARK CONTROL KNOCK SENSOR HOLE)
    --
    --
  • SCREW, HEX WASHER HEAD TAP (M6.3X1.81X13) PHOSPHATE ZINC ORGANIC
    --
    $0.94
  • SCREW, HEXAGON W/FLAT WASHER,TAP,M6.3X1.81X20,13.2 O.D.,ALUMINUM BASECOAT POINT,STEEL,PZ0R(FUEL VAPOR CANISTER BRACKET)(AS REQUIRED)
    Replaced by: 22527475
    $1.08
    $0.68
  • STRAP, 15" TIE STRAP(ELECTRONIC IGNITION MODULE WIRING HARNESS)
    $2.00
    $1.12
  • TUBING, BRAKE,1/4" X 16 FT ROLL,STEEL(FUEL VAPOR)
    $45.11
    $28.80
  • TUBING, SERVICE 5/16" COILED STEEL(25FT)(FUEL VAPOR)
    $42.49
    $27.13
Genuine GM Parts, the Right Choice
GMPartsGiant.com offers the lowest prices for genuine 1991 Buick Regal 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 3.1L, 6 Cyl 3.8L. Model Code: 2 DOOR, 4 DOOR, CUSTOM 2 DOOR, CUSTOM 4 DOOR, LIMITED 2 DOOR, LIMITED 4 DOOR.
 
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This part contains hazardous material.

This part is a packaged part and contains multiple quantities of: (Pack Qty: 4)

This part is a packaged part and contains multiple quantities of the same item. In an effort to simplify packaging GM will sometimes include multiple parts in a package.