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2003 GMC Sierra 3500
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OEM (Genuine) 2003 GMC Sierra 3500 Rear Oxygen Sensor
PartNumber: 19209808
Product Specifications- Notes: Rear, 6.0 Liter; All Models; 6.0l; Rear; Right
- Location: Passenger Side
- Other Names: Oxygen Sensor, Rear Oxygen Sensor
- Item Dimensions: 8.6 x 3.3 x 3.3 inches
- Item Weight: 0.70 Pounds
- Fitment Type: Direct Replacement
- Replaces: 25333812, 12573168, 12583806, 19210711, 12575389, 19256731
- Part Description: 2003 GMC Sierra 3500 Rear Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
$56.05 MSRP:$105.76You Save: $49.71 (48%)
Denso® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 234-4286Product Specifications- Notes: OE Quality Replacement Sensor
- Connector Gender: Male
- Installation Type: Screw
- O2 Sensor Configuration: Direct Fit
- Position: Downstream Driver Side
- Sensor Type: Heated
- Thread Diameter: 0.71" (18 mm)
- UPC: 042511113046
- Wire Harness Length: 21.65" (549.9 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
$52.47
Delphi® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: ES20009Product Specifications- Notes: 21in Length
- Connector Shape: Triangular
- Overall Length: 23.2" (580 mm)
- Position: Upstream
- Terminal Quantity: 4
- Terminal Type: Blade
- UPC: 689604145548
- Wire Harness Length: 22" (550 mm)
- Wrench Size: 0.88" (22 mm)
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | Base | 8 Cyl 8.1L
- 2003 GMC Sierra 3500 | SLE | 8 Cyl 8.1L
- 2003 GMC Sierra 3500 | SLT | 8 Cyl 8.1L
$78.14OEM (Genuine) 2003 GMC Sierra 3500 Front Oxygen Sensor
PartNumber: 12572705
Product Specifications- Notes: Front, 6.0 Liter;Front, 8.1 Liter;Rear, 8.1 Liter; All Models; 6.0l; Front;All Models; 8.1l; Front;All Models; 8.1l; Rear; Right
- Location: Driver Side; Passenger Side
- Other Names: Front Oxygen Sensor, Oxygen Sensor
- Item Dimensions: 8.5 x 3.3 x 3.3 inches
- Item Weight: 0.50 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2003 GMC Sierra 3500 Front Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
$95.49 MSRP:$180.18You Save: $84.69 (48%)
Spectra Premium® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: OS5056Product Specifications- Connector Gender: Female
- Connector Shape: Trapeze
- Installation Type: Screw
- Overall Length: 16 3/4"
- Position: Upstream Driver Side
- Sensor Type: Heated - Zirconia
- Terminal Quantity: 5
- Thread: M18 X 1.5 mm
- UPC: 671607155655
- Wrench Size: 0.88" (22 mm)
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
$51.65
Walker Products® Premium Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 250-24488Product Specifications- Connector Gender: Male
- Overall Length: 23.94"(608.076 mm)
- Position: Downstream Driver Side
- Sensor Type: Heated
- Thread Diameter: 0.71"(18.0 mm)
- UPC: 724620043703
- Wire Gauge Measurement: 20 Gauge
- Wire Harness Length: 20.39"(517.906 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Premium Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
$50.34
Denso® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 234-4669Product Specifications- Notes: DENSO is the OE Manufacturer / Oxygen Sensor
- Connector Gender: Female
- Installation Type: Screw
- O2 Sensor Configuration: Direct Fit
- Position: Upstream Passenger Side
- Sensor Type: Heated
- Thread Diameter: 0.71" (18 mm)
- UPC: 042511112452
- Wire Harness Length: 14.76" (374.9 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
$47.63
Delphi® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: ES20008Product Specifications- Notes: 41in Length
- Connector Shape: Triangular
- Position: Upstream
- Terminal Quantity: 4
- Terminal Type: Blade
- UPC: 689604145531
- Wire Harness Length: 15.2" (380 mm)
- Wrench Size: 0.88" (22 mm)
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | Base | 8 Cyl 6.0L
- 2003 GMC Sierra 3500 | Base | 8 Cyl 8.1L
- 2003 GMC Sierra 3500 | SLE | 8 Cyl 6.0L
- 2003 GMC Sierra 3500 | SLT | 8 Cyl 6.0L
- 2003 GMC Sierra 3500 | SLE | 8 Cyl 8.1L
- 2003 GMC Sierra 3500 | SLT | 8 Cyl 8.1L
$71.73
OEM (Genuine) 2003 GMC Sierra 3500 Oxygen Sensor
PartNumber: 19209812
Product Specifications- Notes: Rear, 6.0 Liter; All Models; 6.0l; Rear; Left
- Location: Driver Side
- Other Names: Oxygen Sensor
- Item Dimensions: 8.4 x 3.0 x 3.1 inches
- Item Weight: 0.70 Pounds
- Fitment Type: Direct Replacement
- Replaces: 25333817, 19210423
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
$78.25 MSRP:$147.66You Save: $69.41 (48%)
Spectra Premium® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: OS5205Product Specifications- Connector Gender: Male
- Connector Shape: Square
- Installation Type: Screw
- Overall Length: 19 11/16"
- Position: Downstream
- Sensor Type: Heated - Zirconia
- Terminal Quantity: 4
- Thread: M18 X 1.5 mm
- UPC: 671607156874
- Wrench Size: 0.88" (22 mm)
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
$32.08Walker Products® Premium Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 250-24492Product Specifications- Connector Gender: Female
- Overall Length: 22.76"(578.104 mm)
- Position: Upstream Passenger Side
- Sensor Type: Heated
- Thread Diameter: 0.71"(18.0 mm)
- UPC: 724620043741
- Wire Gauge Measurement: 20 Gauge
- Wire Harness Length: 19.21"(487.934 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Premium Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
$47.23
Denso® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 234-4651Product Specifications- Notes: OE Quality Replacement Sensor
- Connector Gender: Female
- Installation Type: Screw
- O2 Sensor Configuration: Direct Fit
- Position: Downstream
- Sensor Type: Heated
- Thread Diameter: 0.71" (18 mm)
- UPC: 042511146518
- Wire Harness Length: 16.54" (420.1 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
$41.62
Delphi® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: ES20134Product Specifications- Notes: 49in Length
- Connector Shape: Square
- Position: Rear Driver Side
- Terminal Quantity: 4
- Terminal Type: Blade
- UPC: 689604145357
- Wire Harness Length: 22" (550 mm)
- Wrench Size: 0.88" (22 mm)
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | Base | 8 Cyl 6.0L
- 2003 GMC Sierra 3500 | SLE | 8 Cyl 6.0L
- 2003 GMC Sierra 3500 | SLT | 8 Cyl 6.0L
$54.89OEM (Genuine) 2003 GMC Sierra 3500 Oxygen Sensor
PartNumber: 12572707
Product Specifications- Notes: Rear, 8.1 Liter; All Models; 8.1l; Rear; Left
- Location: Driver Side
- Other Names: Oxygen Sensor
- Item Dimensions: 8.5 x 3.3 x 3.2 inches
- Item Weight: 0.70 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 8.1 L GAS
$70.85 MSRP:$133.71You Save: $62.86 (48%)Walker Products® Premium Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 250-241119Product Specifications- Connector Gender: Male
- Overall Length: 15.87"(403.098 mm)
- Position: Downstream Driver Side
- Sensor Type: Heated
- Thread Diameter: 0.71"(18.0 mm)
- UPC: 724620076800
- Wire Gauge Measurement: 20 Gauge
- Wire Harness Length: 12.32"(312.928 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Premium Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
$44.98
Denso® Universal Fit Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 234-4212Product Specifications- Notes: OE Quality Universal Replacement Sensor
- Installation Type: Screw
- O2 Sensor Configuration: Universal
- OE Part Number: 5C5Z9F472AA, 88Z9F472AB
- Position: Upstream
- Sensor Type: Heated
- Thread Diameter: 0.71" (18 mm)
- UPC: 042511142121
- Wire Harness Length: 11.77" (299 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Universal Fit Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
$31.25
Delphi® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: ES20094Product Specifications- Notes: 32in Length
- Connector Shape: Square
- Position: Rear
- Terminal Quantity: 4
- Terminal Type: Blade
- UPC: 689604144756
- Wire Harness Length: 16.4" (410 mm)
- Wrench Size: 0.88" (22 mm)
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | Base | 8 Cyl 6.0L
- 2003 GMC Sierra 3500 | SLE | 8 Cyl 6.0L
- 2003 GMC Sierra 3500 | SLT | 8 Cyl 6.0L
$49.28Walker Products® Premium Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 250-24491Product Specifications- Connector Gender: Male
- Location: B2S1 Sensor
- Overall Length: 16.06"(407.924 mm)
- Position: Upstream Passenger Side
- Sensor Type: Heated
- Thread Diameter: 0.71"(18.0 mm)
- UPC: 724620043734
- Wire Gauge Measurement: 20 Gauge
- Wire Harness Length: 12.52"(318.008 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Premium Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
$44.07
Denso® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 234-4673Product Specifications- Notes: DENSO is the OE Manufacturer / Oxygen Sensor
- Connector Gender: Male
- Installation Type: Screw
- O2 Sensor Configuration: Direct Fit
- Position: Upstream
- Sensor Type: Heated
- Thread Diameter: 0.71" (18 mm)
- UPC: 042511112179
- Wire Harness Length: 21.65" (549.9 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
$37.47
Walker Products® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 350-34661Product Specifications- Notes: Downstream; Right
- Connector Gender: Male
- Connector Shape: Radiused Polygon
- Installation Type: Threaded
- Location: B2S1
- Overall Length: 15.87"
- Position: Upstream Passenger Side
- Sensor Type: Heated
- Thread Diameter: 18.0 mm
- UPC: 724620101496
- Wire Gauge Measurement: 20 Gauge
- Wire Harness Length: 12.32"
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
$37.95
Walker Products® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 350-34551Product Specifications- Notes: Upstream; Left;Downstream; Right;Upstream; Right
- Connector Gender: Male
- Connector Shape: Radiused Polygon
- Installation Type: Threaded
- Overall Length: 16.06"
- Position: Downstream Driver Side
- Sensor Type: Heated
- Thread Diameter: 18.0 mm
- UPC: 724620093630
- Wire Gauge Measurement: 20 Gauge
- Wire Harness Length: 12.52"
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
$37.57
Walker Products® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 350-34218Product Specifications- Notes: Downstream; Left
- Connector Gender: Male
- Connector Shape: Radiused Polygon
- Installation Type: Threaded
- Overall Length: 23.94"
- Position: Downstream Driver Side
- Sensor Type: Heated
- Thread Diameter: 18.0 mm
- UPC: 724620090387
- Wire Gauge Measurement: 20 Gauge
- Wire Harness Length: 20.39"
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
$37.15
Walker Products® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 350-34633Product Specifications- Notes: Downstream; Left
- Connector Gender: Female
- Connector Shape: Radiused Polygon
- Installation Type: Threaded
- Overall Length: 22.76"
- Position: Upstream Passenger Side
- Sensor Type: Heated
- Thread Diameter: 18.0 mm
- UPC: 724620094439
- Wire Gauge Measurement: 20 Gauge
- Wire Harness Length: 19.21"
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
$34.90
NTK® OE Type Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 21514Product Specifications- Notes: B2S2; OE Equivalent Design
- Mounting Type: Threaded
- Sensor Type: Heated
- Thread Diameter: 18.000
- Universal Or Specific Fit: Specific
- UPC: 087295215142
- Wire Quantity: 4
- Wiring Harness Length: 18.0000
- Part Description: 2003 GMC Sierra 3500 OE Type Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
$57.71NTK® OE Type Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 21548Product Specifications- Notes: B1S2; OE Equivalent Design
- Mounting Type: Threaded
- Sensor Type: Heated
- Thread Diameter: 18.000
- Universal Or Specific Fit: Specific
- UPC: 087295215487
- Wire Quantity: 4
- Wiring Harness Length: 22.7500
- Part Description: 2003 GMC Sierra 3500 OE Type Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
$60.23NTK® OE Type Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 21549Product Specifications- Notes: B2S2; OE Equivalent Design;B1S1; OE Equivalent Design;B2S1; OE Equivalent Design
- Mounting Type: Threaded
- Sensor Type: Heated
- Thread Diameter: 18.000
- Universal Or Specific Fit: Specific
- UPC: 087295215494
- Wire Quantity: 4
- Wiring Harness Length: 15.0000
- Part Description: 2003 GMC Sierra 3500 OE Type Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
$53.99
Denso® Oxygen Sensor for 2003 GMC Sierra 3500
PartNumber: 234-4407Product Specifications- Notes: Sell out reorder 234-4651; OE Quality Replacement Sensor
- Connector Gender: Female
- Installation Type: Screw
- O2 Sensor Configuration: Direct Fit
- Position: Upstream Driver Side
- Sensor Type: Heated
- Thread Diameter: 0.71" (18 mm)
- UPC: 042511112636
- Wire Harness Length: 14.76" (374.9 mm)
- Wires Quantity: 4 Wire Leads
- Part Description: 2003 GMC Sierra 3500 Oxygen Sensor
Vehicle Fitment- 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
$43.11
FAQ for Oxygen Sensor Repair
Q: How to install the oxygen sensor?
A:
You can coat the threads with anti-seize compound GM P/N 12377953, install the HO2S, connect the HO2S electrical connector, the HO2S electrical connector, install the HO2S connector clip to the frame, disconnect the CPA retainer, and lower the vehicle.
By Bob
GM Specialist
02/11/2022Q: How to remove the oxygen sensor?
A:
You can raise and suitably support the vehicle, disconnect the connector position assurance (CPA) retainer, remove the heated oxygen sensor (HO2S) connector clip from the frame, disconnect the HO2S electrical connector, disconnect the HO2S electrical connector, and remove the HO2S.
By Bob
GM Specialist
02/11/2022Q: What is the recommended bot torque for the oxygen sensor?
A:
The recommended bot torque is 42 N.m (31 lb-ft).
By Bob
GM Specialist
02/11/2022Q: What is the recommended bolt torque for the oxygen sensor?
A:
The recommended bolt torque is 42 N.m (31 lb-ft).
By Bob
GM Specialist
02/11/2022Q: What should I do if the pigtail wiring, connector, or terminal is damaged?
A:
You need to replace the oxygen sensor.
By Bob
GM Specialist
02/11/2022Q: What should I pay attention to when servicing the oxygen sensor?
A:
The oxygen sensor may be difficult to remove when the engine temperature is below 48°C (120°F). Excessive force may damage threads in the exhaust manifold or the exhaust pipe.
By Bob
GM Specialist
02/11/2022See more FAQs (1)