Enter Vehicle Year Make Model

Specify your vehicle's year, make and model to guarantee fit.

Year
Make
Model
Options
Drivetrain

1991 GMC C2500 Truck Engine & Engine Management

What year is your
Free Same Day Shipping

1991 GMC C2500 Truck Engine & Engine Management

Filter Results
  • Notify When Available

    VIDEO

    85-02 Buick, Chevy, GMC, Isuzu, Olds, Pontiac Multifit (3 Terminal) Oil Pressure Switch

    Replaces Oil Pressure Sender TRQ SWA41747

    6 reviews
    Brand: TRQ
    - SWA41747
    $30.95
    Save 26%
    List $41.95 Save $11.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

    Replaces Oil Pressure Sender TRQ SWA41747

    VIDEO

    85-02 Buick, Chevy, GMC, Isuzu, Olds, Pontiac Multifit (3 Terminal) Oil Pressure Switch
    6 reviews
    Brand: TRQ - SWA41747
    $30.95
    Save 26%
    List $41.95 Save $11.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

  • Notify When Available
    88-02 GM C PU; 92-00 FS Classic SUV; 96-02 FS VAN Front Engine Mount PAIR

    Replaces Front Driver & Passenger Side 2 Piece Engine Mount Set TRQ MTA71114

    6 reviews
    Brand: TRQ
    - MTA71114

    • Quantity: 2 Piece
    • Kit Includes: (1) Front Driver Side Engine Mount
    • Kit Includes: (1) Front Passenger Side Engine Mount
    $57.95
    Save 16%
    List $68.95 Save $11.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

    Replaces Front Driver & Passenger Side 2 Piece Engine Mount Set TRQ MTA71114

    88-02 GM C PU; 92-00 FS Classic SUV; 96-02 FS VAN Front Engine Mount PAIR
    6 reviews
    Brand: TRQ - MTA71114
    • Quantity: 2 Piece
    • Kit Includes: (1) Front Driver Side Engine Mount
    • Kit Includes: (1) Front Passenger Side Engine Mount
    $57.95
    Save 16%
    List $68.95 Save $11.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

  • Notify When Available

    VIDEO

    Serpentine Belt Idler Pulley

    Replaces Serpentine Belt Idler Pulley TRQ BPA04024

    3 reviews
    Brand: TRQ
    - BPA04024

    $26.95
    Save 33%
    List $39.95 Save $13.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

    Replaces Serpentine Belt Idler Pulley TRQ BPA04024

    VIDEO

    Serpentine Belt Idler Pulley
    3 reviews
    Brand: TRQ - BPA04024
    $26.95
    Save 33%
    List $39.95 Save $13.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

  • Notify When Available

    VIDEO

    Engine Knock Sensor

    Replaces 1991 GMC C2500 Truck V8 5.7L Engine Knock Sensor TRQ ESA53621

    11 reviews
    Brand: TRQ
    - ESA53621

    $25.95
    Save 33%
    List $38.95 Save $13.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

    Replaces 1991 GMC C2500 Truck V8 5.7L Engine Knock Sensor TRQ ESA53621

    VIDEO

    Engine Knock Sensor
    11 reviews
    Brand: TRQ - ESA53621
    $25.95
    Save 33%
    List $38.95 Save $13.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

  • Notify When Available
    Oil Pressure Switch

    Replaces 1991 GMC C2500 Truck V8 6.2L Oil Pressure Switch TRQ SWA40910

    Brand: TRQ
    - SWA40910
    $39.95
    Save 25%
    List $52.95 Save $13.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

    Replaces 1991 GMC C2500 Truck V8 6.2L Oil Pressure Switch TRQ SWA40910

    Oil Pressure Switch
    Brand: TRQ - SWA40910
    $39.95
    Save 25%
    List $52.95 Save $13.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

  • Notify When Available

    VIDEO

    Ignition Control Module

    Replaces Ignition Control Module TRQ ICA61370

    14 reviews
    Brand: TRQ
    - ICA61370
    $34.95
    Save 20%
    List $43.95 Save $9.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

    Replaces Ignition Control Module TRQ ICA61370

    VIDEO

    Ignition Control Module
    14 reviews
    Brand: TRQ - ICA61370
    $34.95
    Save 20%
    List $43.95 Save $9.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

  • Notify When Available

    VIDEO

    Serpentine Belt

    Replaces 1991 GMC C2500 Truck V8 7.4L with Air Pump with Air Conditioning Serpentine Belt TRQ BPA03692

    2 reviews
    Brand: TRQ
    - BPA03692

    $34.95
    Save 5%
    List $36.95 Save $2.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

    Replaces 1991 GMC C2500 Truck V8 7.4L with Air Pump with Air Conditioning Serpentine Belt TRQ BPA03692

    VIDEO

    Serpentine Belt
    2 reviews
    Brand: TRQ - BPA03692
    $34.95
    Save 5%
    List $36.95 Save $2.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

  • Notify When Available

    VIDEO

    Throttle Position Sensor

    Replaces Throttle Position Sensor TRQ ESA94904

    7 reviews
    Brand: TRQ
    - ESA94904
    $28.95
    Save 22%
    List $36.95 Save $8.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

    Replaces Throttle Position Sensor TRQ ESA94904

    VIDEO

    Throttle Position Sensor
    7 reviews
    Brand: TRQ - ESA94904
    $28.95
    Save 22%
    List $36.95 Save $8.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

  • Notify When Available

    VIDEO

    Coolant Temperature Sensor

    Replaces Coolant Temperature Sensor TRQ ESA19552

    2 reviews
    Brand: TRQ
    - ESA19552

    $20.95
    Save 25%
    List $27.95 Save $7.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

    Replaces Coolant Temperature Sensor TRQ ESA19552

    VIDEO

    Coolant Temperature Sensor
    2 reviews
    Brand: TRQ - ESA19552
    $20.95
    Save 25%
    List $27.95 Save $7.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

  • Notify When Available

    VIDEO

    Ignition Coil

    Replaces Ignition Coil TRQ ICA61675

    3 reviews
    Brand: TRQ
    - ICA61675

    • Ignition Coil Type: Direct Replacement
    • Ignition Coil Color: Black
    $38.95
    Save 26%
    List $52.95 Save $14.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

    Replaces Ignition Coil TRQ ICA61675

    VIDEO

    Ignition Coil
    3 reviews
    Brand: TRQ - ICA61675
    • Ignition Coil Type: Direct Replacement
    • Ignition Coil Color: Black
    $38.95
    Save 26%
    List $52.95 Save $14.00

    Guaranteed to Fit 1991 GMC C2500 Truck

    Guaranteed to Fit 1991 GMC C2500 Truck

1

...

1 2 3 4 5

...

10
Close



GMC is a registered trademark of General Motors Company. 1A Auto is not affiliated with or sponsored by GMC or General Motors Company. See all trademarks.
Same Day Shipping

Need your part faster? Choose expedited shipping at checkout.

Guaranteed To Fit

Highest quality, direct fit replacement auto parts enforced to the strictest product standards.

USA Customer Support

Exceeding customers' expectations, our team of passionate auto enthusiasts are here to help.

Instructional Video Library

Thousands of how-to auto repair videos to guide you step-by-step through your repair.

Go To Top
Specify your vehicle

Specify your vehicle's year, make and model to guarantee fit.

Year
Make
Model
Options
Drivetrain

If your vehicle isn't listed, close the window to return to search.