Original OEM GM parts deliver superior quality and meet all performance standards needed for optimal automotive operation. The authentic part identified by 12678662 Oil Pump is available in the market under the name GM Oil Pump. This genuine product has a full warranty coverage from the manufacturer available at all authorized GM dealers throughout the United States. This part 12678662 Oil Pump fits certain Chevrolet Silverado 2500 HD, Silverado 3500 HD models, as well as GMC Sierra 2500 HD, Sierra 3500 HD models.
The original GM component designated by manufacturer part number 12678662 maintains top performance when functioning as the Pump, Engine Oil Pump; Oil Pump Repair Kit unit. The component 12678662 is constructed from durable material and its dimensions span 9.9 x 6.4 x 3.4 inches while weighing 3.90 Pounds. The Direct Replacement component is ready in New condition to ensure full compatibility with your vehicle system. The part 12678662 has available replacement options listed under 12731119. GM manufacturer provides a warranty that ensures reliable operation of this product. The Shipping Policy and Return Policy pages outline complete details regarding shipping procedures and return processes.
The GM 12678662 Oil Pump constitutes a vital sealed accumulator assembly which functions as a liquid/vapor separator to process refrigerant vapor while handling liquid refrigerant and refrigerant oil from evaporators. The desiccant-equipped assembly component functions to eliminate water penetration into the system and extends both the system lifespan as well as its operational efficiency. The GM part 12678662 requires regular maintenance which includes correct oil care procedures starting with oil draining and oil measurement for adding fresh oil to replace the retained capacity of the desiccant. No detail should be overlooked during installation when tightening the clamp bolt to 88 in-lbs (10 Nm) while securely connecting the low-pressure lines with new O-rings that received refrigerant oil lubrication. ChevyPartsGiant.com provides both the tested OEM GM 12678662 along with Oil Pump and numerous genuine GM parts for purchase under one comprehensive inventory. The seamless installation process along with optimal performance springs from our manufacturer's warranty guarantee while safety is reinforced by factory specifications.






