How to replace the engine oil pressure switch on GMC Sierra 3500 Classic?

To change the engine oil pressure sensor/switch, it is required the tool, which is the Oil Pressure Switch socket (J 41712). First, remove the Intake Manifold and then disconnect the engine harness electric connector from the oil pressure sensor. In case the vehicle is not equipped with the active fuel management, apply the adapter: Oil Pressure Switch socket (J 41712), and remove the oil pressure sensor (706) and washer (707). For the vehicles with active fuel management, do the same removal using the same socket. For installation, till the threads of the new oil pressure sensor for sealant. If the vehicle ha an active fuel management, then install the oil pressure sensor (706) and washer (707) using the Oil Pressure Switch socket (J41712), applying the torque of 35 n.m (26lb ft) to the sensor. If not equipped with active fuel management, then procedure the same for installation. Lastly, reconnect the engine harness electrical connector to the oil pressure sensor and tighten it to 35 n.m (26 lb ft) before reinstallation of the Intake Manifold.

OEM GMC Sierra 3500 Classic Oil Pressure Switch

Oil Pressure Sender Switch

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GMC Sierra 3500 Classic Oil Pressure Sensor
Part Number: 12677836
$52.01 MSRP: $101.82
You Save: $49.81 (49%)
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Product Specifications
- Other Name: Sensor Assembly-Engine Oil Pressure; Engine Oil Pressure Switch; Oil Pressure Switch; Oil Pressure Sending Unit; Sensor, Engine Oil Pressure/Temperature
- Replaces: 12562230, 12614969, 12559780, 12556117, 12573107, 12616646
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS
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GMC Sierra 3500 Classic Oil Pressure Sending Unit
Part Number: 12677839
$63.24 MSRP: $112.42
You Save: $49.18 (44%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly-Engine Oil Pressure; Oil Pressure Switch; Sensor, Engine Oil Pressure/Temperature
- Replaces: 12563500, 12574403
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 8.1 L GAS
View related parts
GMC Sierra 3500 Classic Oil Pressure Sending Unit
Part Number: 97600434
$72.00 MSRP: $112.79
You Save: $40.79 (37%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor Assembly, Engine Oil Pressure; Engine Oil Pressure Switch
- Replaced by: 98027456
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL

GMC Sierra 3500 Classic Oil Pressure Switch

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GMC Sierra 3500 Classic Oil Pressure Switch Parts Questions & Experts Answers

Oil Pressure Sending Unit
12677839
Q: How to replace the engine oil pressure switch on GMC Sierra 3500 Classic?
A: To change the engine oil pressure sensor/switch, it is required the tool, which is the Oil Pressure Switch socket (J 41712). First, remove the Intake Manifold and then disconnect the engine harness electric connector from the oil pressure sensor. In case the vehicle is not equipped with the active fuel management, apply the adapter: Oil Pressure Switch socket (J 41712), and remove the oil pressure sensor (706) and washer (707). For the vehicles with active fuel management, do the same removal using the same socket. For installation, till the threads of the new oil pressure sensor for sealant. If the vehicle ha an active fuel management, then install the oil pressure sensor (706) and washer (707) using the Oil Pressure Switch socket (J41712), applying the torque of 35 n.m (26lb ft) to the sensor. If not equipped with active fuel management, then procedure the same for installation. Lastly, reconnect the engine harness electrical connector to the oil pressure sensor and tighten it to 35 n.m (26 lb ft) before reinstallation of the Intake Manifold.