Vehicle Compatibility: Compatible with: 1999-00 Chrysler Cirrus L4 2.4L Upstream & Downstream 2 Piece Compatible with: 2000 Chrysler Cirrus L4 2.0L Upstream & Downstream 2 Piece Compatible with: 1996 Dodge B1500 V6 3.9L Gas Engine Downstream 2 Piece Compatible with: 1996 Dodge B1500 V8 5.2L Gas Engine Downstream 2 Piece Compatible with: 1998 Dodge B1500 V6 3.9L Gas Engine Downstream 2 Piece Compatible with: 1998 Dodge B1500 V8 5.2L Gas Engine Downstream 2 Piece Compatible with: 1998 Dodge B1500 V8 5.9L Gas Engine Downstream 2 Piece Compatible with: 1997 Dodge Dakota V8 5.2L Gas Engine Downstream 2 Piece Compatible with: 1995 Dodge Ram 1500 Truck V6 3.9L Upstream 2 Piece Compatible with: 1996 Dodge Ram 1500 Truck V8 5.2L Manual Transmission Upstream 2 Piece Compatible with: 1996 Dodge Ram 1500 Truck V8 5.9L Manual Transmission Upstream 2 Piece Compatible with: 1996-00 Dodge Ram 1500 Truck V8 5.2L Downstream 2 Piece Compatible with: 1996-00 Dodge Ram 1500 Truck V8 5.9L Automatic Transmission Downstream 2 Piece Compatible with: 1996-00 Dodge Ram 1500 Truck V8 5.9L Manual Transmission Downstream 2 Piece Compatible with: 1996-98 Dodge Ram 1500 Truck V6 3.9L Downstream 2 Piece Compatible with: 1997-00 Dodge Ram 1500 Truck V8 5.9L Automatic Transmission Upstream 2 Piece Compatible with: 1997-99 Dodge Ram 1500 Truck V8 5.2L Upstream 2 Piece Compatible with: 1998-00 Dodge Ram 1500 Truck V6 3.9L Upstream 2 Piece Compatible with: 1998-00 Dodge Ram 1500 Truck V6 3.9L with California Emissions Upstream 2 Piece Compatible with: 2000 Dodge Ram 1500 Truck V8 5.2L (excluding California Emissions) Automatic Transmission Upstream 2 Piece Compatible with: 2000 Dodge Ram 1500 Truck V8 5.2L Manual Transmission Upstream 2 Piece Compatible with: 2001 Dodge Ram 1500 Truck 2 Piece Compatible with: 2000 Dodge Ram 1500 Van V6 3.9L Downstream 2 Piece Compatible with: 2001 Dodge Ram 1500 Van V6 3.6L (Built Before 2/21/01 Production Date) Downstream 2 Piece Compatible with: 1996 Dodge Ram 2500 Truck V8 5.2L CNG Downstream 2 Piece Compatible with: 1996 Dodge Ram 2500 Truck V8 5.2L Gas Engine Downstream 2 Piece Compatible with: 1996 Dodge Ram 2500 Truck V8 5.9L Gas Engine Automatic Transmission Upstream 2 Piece Compatible with: 1996 Dodge Ram 2500 Truck V8 5.9L Gas Engine Downstream 2 Piece Compatible with: 1996 Dodge Ram 2500 Truck V8 5.9L Gas Engine Manual Transmission Upstream 2 Piece Compatible with: 1996-00 Dodge Ram 2500 Truck V10 8.0L (8th Vin Digit W) Upstream Passenger Side 2 Piece Compatible with: 1996-01 Dodge Ram 2500 Truck V10 8.0L (8th Vin Digit W) Downstream 2 Piece Compatible with: 1997 Dodge Ram 2500 Truck V10 8.0L (8th Vin Digit W) Upstream 2 Piece Compatible with: 1997-00 Dodge Ram 2500 Truck V8 5.9L Gas Engine (8th Vin Digit Z) Automatic Transmission Upstream 2 Piece Compatible with: 1997-99 Dodge Ram 2500 Truck V8 5.9L Gas Engine (8th Vin Digit Z) Automatic Transmission Downstream 2 Piece Compatible with: 1997-99 Dodge Ram 2500 Truck V8 5.9L Gas Engine (8th Vin Digit Z) Manual Transmission Downstream 2 Piece Compatible with: 1998-00 Dodge Ram 2500 Truck V10 8.0L (8th Vin Digit W) Upstream Driver Side 2 Piece Compatible with: 2000 Dodge Ram 2500 Truck V8 5.9L Gas Engine (8th Vin Digit Z) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 2500 Van V8 5.2L CNG (8th Vin Digit T) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 2500 Van V8 5.2L Gas Engine (8th Vin Digit Y) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 2500 Van V8 5.2L LPG (8th Vin Digit 2) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 2500 Van V8 5.9L Gas Engine (8th Vin Digit Z) Downstream 2 Piece Compatible with: 1995-99 Dodge Ram 3500 Truck V8 5.9L Gas Engine (8th Vin Digit 5) Upstream 2 Piece Compatible with: 1996-00 Dodge Ram 3500 Truck V10 8.0L (8th Vin Digit W) Upstream Passenger Side 2 Piece Compatible with: 1996-00 Dodge Ram 3500 Truck V8 5.9L Gas Engine (8th Vin Digit 5) Downstream 2 Piece Compatible with: 1996-01 Dodge Ram 3500 Truck V10 8.0L (8th Vin Digit W) Downstream 2 Piece Compatible with: 1997-00 Dodge Ram 3500 Truck V10 8.0L (8th Vin Digit W) Upstream Driver Side 2 Piece Compatible with: 1997-00 Dodge Ram 3500 Truck V8 5.9L (8th Vin Digit Z) Downstream 2 Piece Compatible with: 1997-99 Dodge Ram 3500 Truck V8 5.9L Gas Engine (8th Vin Digit Z) Upstream 2 Piece Compatible with: 2000 Dodge Ram 3500 Truck V8 5.9L Gas Engine (8th Vin Digit 5) Upstream Passenger Side 2 Piece Compatible with: 2001 Dodge Ram 3500 Truck V8 5.9L 4 Wheel Drive Gas Engine (8th Vin Digit 5) Manual Transmission Downstream 2 Piece Compatible with: 2001 Dodge Ram 3500 Truck V8 5.9L 4 Wheel Drive Gas Engine (8th Vin Digit 5) Manual Transmission Upstream Driver Side 2 Piece Compatible with: 2001 Dodge Ram 3500 Truck V8 5.9L 4 Wheel Drive Gas Engine (8th Vin Digit 5) Manual Transmission Upstream Passenger Side 2 Piece Compatible with: 2001 Dodge Ram 3500 Truck V8 5.9L Gas Engine (8th Vin Digit 5) Automatic Transmission Downstream 2 Piece Compatible with: 2001 Dodge Ram 3500 Truck V8 5.9L Gas Engine (8th Vin Digit 5) Automatic Transmission Upstream Passenger Side 2 Piece Compatible with: 2001 Dodge Ram 3500 Truck V8 5.9L Gas Engine Rear Wheel Drive (8th Vin Digit 5) Manual Transmission Downstream 2 Piece Compatible with: 1999 Dodge Ram 3500 Van V8 5.9L Gas Engine (8th Vin Digit Z) Upstream Passenger Side 2 Piece Compatible with: 1999-00 Dodge Ram 3500 Van V8 5.2L CNG (8th Vin Digit T) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 3500 Van V8 5.2L Gas Engine (8th Vin Digit Y) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 3500 Van V8 5.2L LPG (8th Vin Digit 2) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 3500 Van V8 5.9L Gas Engine (8th Vin Digit Z) Downstream 2 Piece Compatible with: 1997-00 Dodge Stratus V6 2.5L Upstream 2 Piece Compatible with: 1998-00 Dodge Stratus L4 2.4L Downstream 2 Piece Compatible with: 1999-00 Dodge Stratus L4 2.0L Downstream 2 Piece Compatible with: 1999-00 Dodge Stratus V6 2.5L Downstream 2 Piece Compatible with: 1996-01 Jeep Cherokee L6 4.0L (8th Vin Digit S) Upstream 2 Piece Compatible with: 1999-00 Jeep Grand Cherokee L6 4.0L Downstream 2 Piece Compatible with: 2000 Jeep Grand Cherokee L6 4.0L Upstream 2 Piece Compatible with: 1997-00 Jeep Wrangler L4 2.5L Upstream 2 Piece Compatible with: 1997-00 Jeep Wrangler L6 4.0L Upstream 2 Piece Compatible with: 1997-98 Plymouth Breeze L4 2.4L Downstream 2 Piece Compatible with: 1998 Plymouth Breeze L4 2.0L Downstream 2 Piece Compatible with: 1999-00 Plymouth Breeze L4 2.0L Downstream 2 Piece Compatible with: 1999-00 Plymouth Breeze L4 2.4L Downstream 2 Piece Compatible with: 1996-97 Plymouth Grand Voyager L4 2.4L Upstream 2 Piece Compatible with: 1996-97 Plymouth Voyager L4 2.4L Upstream 2 Piece Compatible with: 1999-00 Plymouth Voyager L4 2.4L Upstream 2 Piece Vehicle Compatibility: Compatible with: 1999-00 Chrysler Cirrus L4 2.4L Upstream & Downstream 2 Piece Compatible with: 2000 Chrysler Cirrus L4 2.0L Upstream & Downstream 2 Piece Compatible with: 1996 Dodge B1500 V6 3.9L Gas Engine Downstream 2 Piece Compatible with: 1996 Dodge B1500 V8 5.2L Gas Engine Downstream 2 Piece Compatible with: 1998 Dodge B1500 V6 3.9L Gas Engine Downstream 2 Piece Compatible with: 1998 Dodge B1500 V8 5.2L Gas Engine Downstream 2 Piece Compatible with: 1998 Dodge B1500 V8 5.9L Gas Engine Downstream 2 Piece Compatible with: 1997 Dodge Dakota V8 5.2L Gas Engine Downstream 2 Piece Compatible with: 1995 Dodge Ram 1500 Truck V6 3.9L Upstream 2 Piece Compatible with: 1996 Dodge Ram 1500 Truck V8 5.2L Manual Transmission Upstream 2 Piece Compatible with: 1996 Dodge Ram 1500 Truck V8 5.9L Manual Transmission Upstream 2 Piece Compatible with: 1996-00 Dodge Ram 1500 Truck V8 5.2L Downstream 2 Piece Compatible with: 1996-00 Dodge Ram 1500 Truck V8 5.9L Automatic Transmission Downstream 2 Piece Compatible with: 1996-00 Dodge Ram 1500 Truck V8 5.9L Manual Transmission Downstream 2 Piece Compatible with: 1996-98 Dodge Ram 1500 Truck V6 3.9L Downstream 2 Piece Compatible with: 1997-00 Dodge Ram 1500 Truck V8 5.9L Automatic Transmission Upstream 2 Piece Compatible with: 1997-99 Dodge Ram 1500 Truck V8 5.2L Upstream 2 Piece Compatible with: 1998-00 Dodge Ram 1500 Truck V6 3.9L Upstream 2 Piece Compatible with: 1998-00 Dodge Ram 1500 Truck V6 3.9L with California Emissions Upstream 2 Piece Compatible with: 2000 Dodge Ram 1500 Truck V8 5.2L (excluding California Emissions) Automatic Transmission Upstream 2 Piece Compatible with: 2000 Dodge Ram 1500 Truck V8 5.2L Manual Transmission Upstream 2 Piece Compatible with: 2001 Dodge Ram 1500 Truck 2 Piece Compatible with: 2000 Dodge Ram 1500 Van V6 3.9L Downstream 2 Piece Compatible with: 2001 Dodge Ram 1500 Van V6 3.6L (Built Before 2/21/01 Production Date) Downstream 2 Piece Compatible with: 1996 Dodge Ram 2500 Truck V8 5.2L CNG Downstream 2 Piece Compatible with: 1996 Dodge Ram 2500 Truck V8 5.2L Gas Engine Downstream 2 Piece Compatible with: 1996 Dodge Ram 2500 Truck V8 5.9L Gas Engine Automatic Transmission Upstream 2 Piece Compatible with: 1996 Dodge Ram 2500 Truck V8 5.9L Gas Engine Downstream 2 Piece Compatible with: 1996 Dodge Ram 2500 Truck V8 5.9L Gas Engine Manual Transmission Upstream 2 Piece Compatible with: 1996-00 Dodge Ram 2500 Truck V10 8.0L (8th Vin Digit W) Upstream Passenger Side 2 Piece Compatible with: 1996-01 Dodge Ram 2500 Truck V10 8.0L (8th Vin Digit W) Downstream 2 Piece Compatible with: 1997 Dodge Ram 2500 Truck V10 8.0L (8th Vin Digit W) Upstream 2 Piece Compatible with: 1997-00 Dodge Ram 2500 Truck V8 5.9L Gas Engine (8th Vin Digit Z) Automatic Transmission Upstream 2 Piece Compatible with: 1997-99 Dodge Ram 2500 Truck V8 5.9L Gas Engine (8th Vin Digit Z) Automatic Transmission Downstream 2 Piece Compatible with: 1997-99 Dodge Ram 2500 Truck V8 5.9L Gas Engine (8th Vin Digit Z) Manual Transmission Downstream 2 Piece Compatible with: 1998-00 Dodge Ram 2500 Truck V10 8.0L (8th Vin Digit W) Upstream Driver Side 2 Piece Compatible with: 2000 Dodge Ram 2500 Truck V8 5.9L Gas Engine (8th Vin Digit Z) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 2500 Van V8 5.2L CNG (8th Vin Digit T) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 2500 Van V8 5.2L Gas Engine (8th Vin Digit Y) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 2500 Van V8 5.2L LPG (8th Vin Digit 2) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 2500 Van V8 5.9L Gas Engine (8th Vin Digit Z) Downstream 2 Piece Compatible with: 1995-99 Dodge Ram 3500 Truck V8 5.9L Gas Engine (8th Vin Digit 5) Upstream 2 Piece Compatible with: 1996-00 Dodge Ram 3500 Truck V10 8.0L (8th Vin Digit W) Upstream Passenger Side 2 Piece Compatible with: 1996-00 Dodge Ram 3500 Truck V8 5.9L Gas Engine (8th Vin Digit 5) Downstream 2 Piece Compatible with: 1996-01 Dodge Ram 3500 Truck V10 8.0L (8th Vin Digit W) Downstream 2 Piece Compatible with: 1997-00 Dodge Ram 3500 Truck V10 8.0L (8th Vin Digit W) Upstream Driver Side 2 Piece Compatible with: 1997-00 Dodge Ram 3500 Truck V8 5.9L (8th Vin Digit Z) Downstream 2 Piece Compatible with: 1997-99 Dodge Ram 3500 Truck V8 5.9L Gas Engine (8th Vin Digit Z) Upstream 2 Piece Compatible with: 2000 Dodge Ram 3500 Truck V8 5.9L Gas Engine (8th Vin Digit 5) Upstream Passenger Side 2 Piece Compatible with: 2001 Dodge Ram 3500 Truck V8 5.9L 4 Wheel Drive Gas Engine (8th Vin Digit 5) Manual Transmission Downstream 2 Piece Compatible with: 2001 Dodge Ram 3500 Truck V8 5.9L 4 Wheel Drive Gas Engine (8th Vin Digit 5) Manual Transmission Upstream Driver Side 2 Piece Compatible with: 2001 Dodge Ram 3500 Truck V8 5.9L 4 Wheel Drive Gas Engine (8th Vin Digit 5) Manual Transmission Upstream Passenger Side 2 Piece Compatible with: 2001 Dodge Ram 3500 Truck V8 5.9L Gas Engine (8th Vin Digit 5) Automatic Transmission Downstream 2 Piece Compatible with: 2001 Dodge Ram 3500 Truck V8 5.9L Gas Engine (8th Vin Digit 5) Automatic Transmission Upstream Passenger Side 2 Piece Compatible with: 2001 Dodge Ram 3500 Truck V8 5.9L Gas Engine Rear Wheel Drive (8th Vin Digit 5) Manual Transmission Downstream 2 Piece Compatible with: 1999 Dodge Ram 3500 Van V8 5.9L Gas Engine (8th Vin Digit Z) Upstream Passenger Side 2 Piece Compatible with: 1999-00 Dodge Ram 3500 Van V8 5.2L CNG (8th Vin Digit T) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 3500 Van V8 5.2L Gas Engine (8th Vin Digit Y) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 3500 Van V8 5.2L LPG (8th Vin Digit 2) Downstream 2 Piece Compatible with: 1999-00 Dodge Ram 3500 Van V8 5.9L Gas Engine (8th Vin Digit Z) Downstream 2 Piece Compatible with: 1997-00 Dodge Stratus V6 2.5L Upstream 2 Piece Compatible with: 1998-00 Dodge Stratus L4 2.4L Downstream 2 Piece Compatible with: 1999-00 Dodge Stratus L4 2.0L Downstream 2 Piece Compatible with: 1999-00 Dodge Stratus V6 2.5L Downstream 2 Piece Compatible with: 1996-01 Jeep Cherokee L6 4.0L (8th Vin Digit S) Upstream 2 Piece Compatible with: 1999-00 Jeep Grand Cherokee L6 4.0L Downstream 2 Piece Compatible with: 2000 Jeep Grand Cherokee L6 4.0L Upstream 2 Piece Compatible with: 1997-00 Jeep Wrangler L4 2.5L Upstream 2 Piece Compatible with: 1997-00 Jeep Wrangler L6 4.0L Upstream 2 Piece Compatible with: 1997-98 Plymouth Breeze L4 2.4L Downstream 2 Piece Compatible with: 1998 Plymouth Breeze L4 2.0L Downstream 2 Piece Compatible with: 1999-00 Plymouth Breeze L4 2.0L Downstream 2 Piece Compatible with: 1999-00 Plymouth Breeze L4 2.4L Downstream 2 Piece Compatible with: 1996-97 Plymouth Grand Voyager L4 2.4L Upstream 2 Piece Compatible with: 1996-97 Plymouth Voyager L4 2.4L Upstream 2 Piece Compatible with: 1999-00 Plymouth Voyager L4 2.4L Upstream 2 Piece