How to replace the MAP Sensor on Chevrolet Blazer?

The first step in manifold absolute pressure (MAP) sensor replacement requires a shutdown of ignition power. Hook the MAP Sensor harness connector after disconnecting it then extract the sensor directly upward while gently swaying it to prevent damage to either components. You need to remove the old MAP Sensor grommet after disconnecting it from the installation. When installing the new MAP Sensor first attach the new grommet to the MAP Sensor followed by MAP Sensor installation then connect the MAP Sensor harness.

OEM Chevrolet Blazer MAP Sensor

Manifold Air Pressure Sensor

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9 MAP Sensors found

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Chevrolet Blazer Map Sensor Part Number: 55493530
$11.89 MSRP: $18.88
You Save: $6.99 (38%)
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Product Specifications
- Other Name: Sensor Assembly-Turbo Air Pressure; Pressure Sensor; Boost Sensor; Sensor; Sensor, Coolant Temperature (Engine Unit); Sensor, Computer Control Sensors
- Replaced by: 12694431
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2021 Chevrolet Blazer | LT, Premier | 4 Cyl 2.0 L GAS
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Chevrolet Blazer M.A.P. Sensor Part Number: 55573248
$27.69 MSRP: $45.61
You Save: $17.92 (40%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control; Air Pressure Sensor; Height Adaptation; Manifold Absolute Pressure Sensor; MAP Sensor; Ignition Module; Sensor; Sensor, Turbocharger/Supercharger
- Replaces: 12591290, 93192107
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 Chevrolet Blazer | Base, L, LT | 4 Cyl 2.5 L GAS
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Chevrolet Blazer M.A.P. Sensor, Green, Passenger Side Part Number: 12569240
$66.22 MSRP: $112.74
You Save: $46.52 (42%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; Manifold Absolute Pressure Sensor; MAP Sensor; Pressure Sensor; Manifold Pressure Sensor; Emission Control Sensors (Vehicle Speed, Oxygen)
- Position: Passenger Side
- Replaces: 16254719, 16137039
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1987-1995 Chevrolet Blazer | Base, Cheyenne, Custom Deluxe, LT, Scottsdale, Silverado, Silverado Sport | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
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Chevrolet Blazer M.A.P. Sensor Part Number: 12694431
$12.05 MSRP: $18.88
You Save: $6.83 (37%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor Assembly-Throttle Inlet Absolute Pressure; MAP Sensor; Pressure Sensor; Boost Sensor; Sensor
- Replaces: 55493530
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2020-2024 Chevrolet Blazer | LT, Premier, RS | 4 Cyl 2.0 L GAS
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Chevrolet Blazer M.A.P. Sensor Part Number: 19418808
$73.36 MSRP: $125.98
You Save: $52.62 (42%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; MAP Sensor; Valve Assembly
- Replaces: 16249939, 09359409, 12614973, 16187556, 9359409
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2005 Chevrolet Blazer | Base, LS, LT, Trailblazer, Xtreme, ZR2 | 6 Cyl 4.3 L GAS
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Chevrolet Blazer M.A.P. Sensor Part Number: 12711664
$27.40 MSRP: $48.92
You Save: $21.52 (44%)
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Product Specifications
- Other Name: Sensor, Computer Control Sensors; MAP Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2022-2024 Chevrolet Blazer | LT, Premier, RS | 6 Cyl 3.6 L GAS
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Chevrolet Blazer M.A.P. Sensor Part Number: 12650600
$26.57 MSRP: $43.77
You Save: $17.20 (40%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Manifold Absolute Pressure Sensor; MAP Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2021 Chevrolet Blazer | Base, LT, Premier, RS | 6 Cyl 3.6 L GAS
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Chevrolet Blazer M.A.P. Sensor Part Number: 17112715
Product Specifications
- Other Name: Sensor, Computer Control Sensors; Manifold Absolute Pressure Sensor; MAP Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1995 Chevrolet Blazer | Base, LT | 6 Cyl 4.3 L GAS
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Chevrolet Blazer M.A.P. Sensor Part Number: 12569241
Product Specifications
- Other Name: Sensor, Computer Control Sensors; MAP Sensor; Pressure Sensor; Boost Sensor; Turbo Sensor
- Replaces: 16009886, 16040609, 16254539
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994 Chevrolet Blazer | Base, Silverado, Silverado Sport | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL

Chevrolet Blazer MAP Sensor

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The MAP Sensor in Chevrolet Blazer cars is a crucial unit that calculates the positive air pressure that enters the intake manifold to generate timely signals to the ECU for the proportionalal fuel mixture. That is why in fuel-injected engines, the MAP Sensor helps in deriving the estimated air density and calculating the right proportion of the air-to-fuel mixture for combustion. Naturally aspirated engines will work well with either a MAP or a MAF sensor; however, forced induction will work with both. MAP Sensor also aids in the diagnostic system which is present in vehicle; it helps in controlling the fuel delivery, the ignition period, and other necessary functioning in the engine.

Chevrolet Blazer MAP Sensor Parts Questions & Experts Answers

M.A.P. Sensor
19418808
Q: How to replace the MAP Sensor on Chevrolet Blazer?
A:
The first step in manifold absolute pressure (MAP) sensor replacement requires a shutdown of ignition power. Hook the MAP Sensor harness connector after disconnecting it then extract the sensor directly upward while gently swaying it to prevent damage to either components. You need to remove the old MAP Sensor grommet after disconnecting it from the installation. When installing the new MAP Sensor first attach the new grommet to the MAP Sensor followed by MAP Sensor installation then connect the MAP Sensor harness.