Product Description
Genuine GM 12686434 LT1 LT4 Wet Sump Oil Pump
OEM Variable Vane Oil Pump for 2014-2021 LT1 & LT4 6.2L Wet Sump Engines | Excludes Dry Sump Z06 & Z51 Applications
Protect the oiling system in your compatible Gen V LT engine with this Genuine GM LT1 LT4 oil pump, GM part number 12686434. Designed for specified 2014-2021 6.2L LT1 and LT4 wet sump engine applications, this OEM-quality variable vane oil pump is an ideal replacement during camshaft swaps, timing service, front cover removal, engine rebuilds, or internal repair work. Replacing the oil pump while the engine is already apart can provide added peace of mind, especially when servicing a previously operated Gen V LT engine.
Key Features & Benefits
- Genuine GM LT1 LT4 Oil Pump: This Genuine GM oil pump is designed for compatible 2014-2021 LT1 and LT4 6.2L wet sump engine applications requiring GM part number 12686434. It provides an OEM-quality replacement option for restoring the intended factory oiling system configuration during engine service or rebuild work.
- Wet Sump Applications Only: This pump is intended specifically for compatible wet sump LT1 and LT4 engine combinations. It will not fit dry sump applications, including Z06 and Z51 Corvette configurations, so engine and oiling-system verification is essential before purchase.
- Variable Vane Oil Pump Design: GM variable vane oil pumps are a key component of the Gen V LT oiling system and should be carefully evaluated anytime the front of the engine is disassembled. Installing a new Genuine GM pump during major service can help avoid reusing a previously operated pump after removal and reinstallation.
- Recommended During Camshaft Swaps: A camshaft installation requires access to the front of the engine, making it an ideal time to replace service-sensitive oiling components. Installing a new oil pump during the same job can reduce the risk of added labor from future oil pump replacement.
- Ideal for LT Engine Rebuilds and Front Cover Service: This oil pump is a practical replacement during timing component service, front cover removal, crankshaft work, engine rebuilds, or internal repair projects. It helps builders and technicians maintain a properly matched oil pump configuration in compatible wet sump Gen V LT applications.
Specs
- Brand: Genuine GM
- GM Part Number: 12686434
- Product Type: Engine oil pump
- Oil Pump Design: Variable vane
- Engine Compatibility: LT1 and LT4 6.2L wet sump engines
- Model Year Coverage: 2014-2021 applications
- Primary Use: OEM oil pump replacement for compatible Gen V LT wet sump applications
Notes
- Wet Sump Engine Verification Required: Confirm that your LT1 or LT4 engine uses a wet sump oiling system before ordering. This pump is not compatible with dry sump applications, including Z06 and Z51 Corvette models.
- Camshaft Swap Recommendation: GM variable vane oil pumps can be susceptible to failure when removed and reinstalled after use. Installing a new Genuine GM pump is recommended for peace of mind during camshaft swaps and other major front-engine service procedures.
- Vehicle and Engine Code Verification: Confirm the exact vehicle, engine code, oiling configuration, and original oil pump part number before purchase. Similar LT1 and LT4 applications can use different oiling systems depending on the model and performance package.
- Installation Preparation: Inspect the oil pickup tube, pickup tube seal, timing components, front cover, oil pan, mounting surfaces, and related oiling-system parts for debris, wear, or damage while the engine is apart.
- Assembly Note: Follow the applicable Genuine GM service procedures, torque specifications, oil pump priming recommendations, and engine assembly requirements for your specific LT engine configuration.
Key Fitments
- Fits 2014-2021 LT1 and LT4 6.2L Wet Sump Engines
- CADILLAC CTS-V 2016-2019
- CHEVROLET CAMARO 2016-2021
- CHEVROLET CORVETTE 2015-2019 *Excluding Z06 and Z51*
