2012 Gmc Sierra 2500 HD 6.6L Duramax V8 DIESEL A/T 4WD WT Extended Cab Pickup Fleetside Accessory Drive Belt Idler Pulley - 12580773

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2012 GMC Sierra 2500 HD 6.6L Duramax V8 DIESEL A/T 4WD WT Extended Cab Pickup Fleetside

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Accessory Drive Belt Idler Pulley

Part Number: 12580773
Supersession(s): 12557819

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Pulley. Idler. Accessory Drive Belt. Serpentine.
Accessory Drive Belt Idler Pulley. For A/C Belt. Smooth.

Accessory Drive Belt Idler Pulley

1/2, 3/4 & 1 Ton, 1996 New Style, GAS ENGINE, smooth. 4.3 LITER, w/AC. 5.0 & 5.7 LITER, w/AC. 5.7 liter, w/AC. 6 cylinder. 7.4 LITER, w/AC. Express, Savana; Gas Engines; Smooth Pulley. GAS ENGINE, smooth. S-Series; 4.3L; w/o Heavy Duty Heater. Smooth pulley. W/AC, 5.7 liter. W/AC, 7.4 liter.
Drive Belt Idler Pulley - Repair or Replace
If you've noticed that the drive belt on your 2012 GMC Sierra 2500 HD is becoming worn or is making a squealing noise, your drive belt idler pulley may be worn out. Replacing your drive belt idler pulley may be the solution.

BELTS & PULLEYS.

Full Diagram

2. 2 liter. 4. 3 liter. w/AC. w/CPI. w/EFI. w/o AC.

4.3 LITER. w/AC.

COOLING FAN.

Full Diagram

#24

# 1. # 2. 2WD. 4 cylinder. 4WD. 6 cylinder. ALL. Lower. Side. stamped NK. stamped NP. Standard cooling. To engine. To radiator. Upper. W/3. 73. w/AC. W/CARGO doors. W/FOG lamp. W/HD cooling. W/HIGH output. W/LIFT gate. W/O 3. 73. w/o AC. W/O fog lamps. W/O hd cooling.

6 cylinder.

BELTS & PULLEYS.

Full Diagram

7. 4 liter. W/A. I. R.. w/AC. W/O a. I. R.. w/o AC.

7.4 LITER. w/AC.

Belts & pulleys.

Full Diagram

5. 0 & 5. 7 liter. w/AC. w/o AC.

5.0 & 5.7 LITER. w/AC.

BELTS & PULLEYS.

Full Diagram

1/2. 100 amp alternator. 124 amp alternator. 130 amp alternator. 1996 New Style. 3/4 & 1 Ton. 5. 7 liter W/O ac. 5. 7L W/AC. 7. 4 liter W/AC. 7. 4 liter W/O ac. 8. 1 liter. 8. 1L. Gas engine. Grooved. HD heat & 130 amp. Smooth. W/AIR injection. W/AIR pump. W/O air injection. W/O air pump.

1/2. 1996 New Style. 3/4 & 1 Ton. GAS ENGINE. smooth.

BELTS & PULLEYS. COOLING FAN.

Full Diagram