Exhaust System fit your 1999 Buick Riviera

My Vehicle Change Vehicle

1999 Buick Riviera

6 Cyl 3.8L SFI, Supercharged; 4-Speed Automatic Transmission, 4T65-E, Heavy Duty; Riviera

My Vehicle Change Vehicle

1999 Buick Riviera

6 Cyl 3.8L SFI, Supercharged; 4-Speed Automatic Transmission, 4T65-E, Heavy Duty; Riviera

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Parts Questions

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Recommended

Part No. & Part Description

Price

Part No. &
Part Description

19178924
SENSOR, Computer Control Sensors, SENSOR,HEATED OXYGEN(POSITION 3)
MSRP: $135.22
$65.12
1
Add To Cart

MUFFLER, Exhaust
25668334
MUFFLER, EXHAUST(W/TAIL PIPE)
Location:
Driver Side
25668335
MUFFLER, EXHAUST(W/TAIL PIPE)
- Location:
  Passenger Side

15286606
GASKET, Exhaust Pipe, GASKET,EXHAUST MANIFOLD PIPE
MSRP: $31.46
$21.05
1
Add To Cart

3544534
GASKET, Catalytic Converter, GASKET,CATALYTIC CONVERTER
MSRP: $12.32
$8.24
1
Add To Cart

25644107
RESONATOR, Exhaust, RESONATOR,EXHAUST(W/STAINLESS STEEL BRACKET)(ALSO REQUIRES INTERMEDIATE PIPE & MUFFLERS)

12077979
LOCK, Chassis Electrical, LOCK,CONNECT-MICRO PACKING SECONDARY(BLUE)(PUSH-IN)(14.865)
MSRP: $1.66
$1.12
1
Add To Cart

CONNECTOR, Computer Control Sensors
15305801
CONNECTOR, INLINE-TO OXYGEN SENSOR(W/LEADS)(BLACK)(4-WAY MALE)(W/LEADS)(2.530)
Require Quantity:
02
Package Quantity:
1
MSRP: $74.52
$39.50
1
Add To Cart
88988598
CONNECTOR, INLINE-TO OXYGEN SENSOR(BLACK)(4-WAY FEMALE)(W/LEADS)(SQUARE)(3.900)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $103.04
$43.28
1
Add To Cart

20713262
NUT, Computer Control Sensors, NUT,OXYGEN SENSOR SHIELD(12.183)
- Require Quantity:
  03
- Package Quantity:
  1
MSRP: $6.43
$4.30
1
Add To Cart

25555386
BOLT, Exhaust Muffler/Resonator, BOLT,EXHAUST MUFFLER HANGER(M8X1.25X50,20.5 THREAD)(HEX FLANGED HEAD SHOULDER)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $37.54
$25.11
1
Add To Cart

INSULATOR, Exhaust Pipe
25687438
INSULATOR, EXHAUST PIPE HANGER(3.706)
Require Quantity:
02
Package Quantity:
1
MSRP: $10.10
$9.36
1
Add To Cart
25609451
INSULATOR, EXHAUST PIPE HANGER
- Require Quantity:
  02
- Package Quantity:
  1

10371540
PIPE, Catalytic Converter, PIPE,EXHAUST MANIFOLD

25165285
CONVERTER, Catalytic Converter, CONVERTER,3WAY CATALYTIC(IDENTIFY:CS)

25533283
CLAMP, Exhaust System Attaching, CLAMP,EXHAUST RESONATOR(CATALYTIC CONVERTER TO RESONATOR)(FITS 67.7MM/2.50" PIPE)
- Require Quantity:
  02
- Package Quantity:
  1

SHIELD, Exhaust Muffler/Resonator
25639738
SHIELD, EXHAUST MUFFLER SIGHT(3.705)
Location:
Passenger Side
25639739
SHIELD, EXHAUST MUFFLER SIGHT(3.705)
- Location:
  Driver Side

SHIELD, Chassis/Engine Wiring Harness

25640960
SHIELD, OXYGEN SENSOR WIRING HARNESS(REAR)
25663926
SHIELD, OXYGEN SENSOR WIRING HARNESS(CENTER)

25651425
PIPE, Exhaust Pipe, PIPE,EXHAUST(INTERMEDIATE)(ALSO REQUIRES MUFFLERS)(INCLUDES 5)

25657568
SHIELD, Catalytic Converter, SHIELD,CATALYTIC CONVERTER & EXHAUST MUFFLER HEAT

25711980
BRACKET, Exhaust Muffler/Resonator, BRACKET,EXHAUST MUFFLER REAR HANGER
- Require Quantity:
  02
- Package Quantity:
  1

11514597
NUT, HEX FLANGED HEAD,10X1.5 THREAD, 9.8 THICK, 21.8 OUTSIDE DIAMETER, 510M (10) PHOSPHATE ZINC ORGANIC - FLAKE 7111M(EXHAUST MUFFLER HANGER)(2.383)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $8.20
$4.57
1
Add To Cart

11515767
BOLT, HEX FLANGED HEAD,M10X1.5X35,32THD,22.3 O.D.,MACHINE,10.9,7114M(EXHAUST MUFFLER REAR HANGER BRACKET)(TOGETHER WITH 12345493)
- Require Quantity:
  02
- Package Quantity:
  10
MSRP: $1.14
$0.74
10
Add To Cart

15714277
SCREW, W/WASHER AND SLR,M4.2X1.41X13,5.4THD,12.5 O.D.,SELF TAP,ZINC COATED(OXYGEN SENSOR WIRING HARNESS HEAT SHIELD)
- Require Quantity:
  03
- Package Quantity:
  1
MSRP: $6.91
$4.38
1
Add To Cart

11609746
NUT, HEX FLANGED HEAD,M8X1.25,8.9THK,17.6 O.D.,10 STEEL,GMW3200, PREVENT TORQUE(CATALYTIC CONVERTER)
- Require Quantity:
  04
- Package Quantity:
  12
MSRP: $4.30
$2.73
12
Add To Cart

11609746
NUT, HEX FLANGED HEAD,M8X1.25,8.9THK,17.6 O.D.,10 STEEL,GMW3200, PREVENT TORQUE
- Require Quantity:
  04
- Package Quantity:
  12
MSRP: $4.30
$2.73
12
Add To Cart

11611881
SCREW, PAN, M4.2X1.41X13 OUTSIDE DIAMETER 11, ISO 2702, GMW18730, TAPPING(EXHAUST MUFFLER SIGHT SHIELD)
- Require Quantity:
  02
- Package Quantity:
  1
MSRP: $7.19
$4.57
1
Add To Cart

11517632
SCREW ASSEMBLY - DRILL & TAP, OVAL HEAD, M4.2X1.41X20(EXHAUST MUFFLER SIGHT SHIELD)
- Require Quantity:
  02
- Package Quantity:
  1

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 1999 Buick Riviera parts. Parts like Exhaust System 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: RIVIERA.