Buy 2012 Gmc Sierra 2500 HD WT Extended Cab Pickup Fleetside Alternator. Alternator. Alternators, Motors - OEM Gmc Part # 22781131 (15847291, 19118686, 20989651)

Alternator. Generator Assembly.
105 Amp. 145 Amp. Alternator. Alternators Are Sold As Assembly Only. Alternators Are Sold As Re-manufactured Units. Dual Alternators. General Motors Does Not Service Components Separately. General Motors Services The Alternator As A Remanfactured Unit Only For 1986-02 Model Years. General Motors Does Not Service Components Seperately. Part listed is For remanufactured part. Contact dealer For core exchange inFormation. Part numbers are For remanufactured Alternators. Contact local dealer For possible core charge and exchange inFormation.

Alternator

105 amp. 4.3 LITER, 2003-14, 145 amp. 4.8, 5.3 & 6.0 LITER, 145 amp, 4 wire type. 4.8, 5.3, 6.0 & 8.1 LITER, 105 amp. 5.3 liter. 6 cylinder, 105 amp. 6.6 LITER TURBO DIESEL, 105 amp. All Models; 105 Amp; All. All Models; 5.3L. Astro, Safari; 4.3L; 105 Amp. Express, Savana; 105 Amp. Express, Savana; 145 Amp. Express, Savana; All; 4.8L. Express, Savana; All; 5.3L; 145 Amp. Express, Savana; All; 6.0L. Manual trans. SSR; Manual Trans.
Alternator - Repair or Replace
Your alternator replenishes your battery when your car is running. If you have a battery light, low charge warning, or your recently replaced battery already needs a jump, the alternator in your 2012 GMC Sierra 2500 HD may need to be repaired or replaced.