Product Description
Genuine GM 12686433 Engine Oil Pump
OEM Variable Vane Oil Pump | Fits 2014-2019 5.3L L83 & 6.2L L86 LT Engines
The Genuine GM 12686433 Oil Pump is the factory original equipment oil pump used on many 2014-2019 GM Gen V LT-based 5.3L and 6.2L truck and SUV engines. This variable vane oil pump is engineered by General Motors to deliver precise oil pressure control and consistent lubrication across a wide range of operating conditions. When performing camshaft upgrades or engine repairs on LT engines, it is highly recommended to replace the oil pump since the factory variable displacement pumps can experience reliability issues if reused after removal. Installing a new Genuine GM pump ensures proper lubrication, factory oil pressure performance, and long-term reliability for your LT engine build.
Key Features & Benefits
- Genuine GM Original Equipment – Designed, engineered, and validated by General Motors to meet strict OEM standards for fit, durability, and long-term reliability.
- Variable Vane Oil Pump Design – Provides precise oil pressure regulation and improved lubrication performance across a wide RPM range.
- Recommended for Camshaft Upgrades – Factory LT oil pumps are prone to failure when reused after removal, making replacement highly recommended during cam swaps or engine service.
- Maintains OEM Engine Protection – Ensures proper oil pressure and lubrication to critical engine components including crankshaft, camshaft, and valvetrain assemblies.
- Designed for Gen V LT Engines – Direct replacement for the factory oil pump used on L83, L86, and L8B engines in GM trucks and SUVs.
Important Fitment Notes
- For 2019-2020 vehicles, engine code must be verified. This oil pump only fits engines with VIN 8th digit C, R, or J.
- Compatible with L83, L86, and L8B engines only.
Key Fitments
- CADILLAC ESCALADE 2015-2019
- CHEVROLET SILVERADO 1500 2014-2019
- CHEVROLET SUBURBAN 2015-2019
- CHEVROLET TAHOE 2015-2019
- GMC SIERRA 1500 2014-2018
- GMC SIERRA 1500 LIMITED 2019
- GMC YUKON 2015-2019
- GMC YUKON XL 2015-2019
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Oil pump
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GEN V oil pump
Great item and ready to go with new bolts.
