Valve Tappet 12645725 For GM AFM/DOD Sprung lifter V8 5.3L
The Product Technical Support and Services for the VALVE TAPPET include:
- Troubleshooting assistance for installation and operation issues
- Guidance on maintenance and proper care of the VALVE TAPPET
- Product warranty information and support for warranty claims
- Access to technical documentation, such as manuals and diagrams
- Technical training for service technicians and mechanics
- Product upgrade and customization options
- Remote diagnostic services for identifying potential problems
Packing and Shipping:
Product Packaging:
The VALVE TAPPET is carefully wrapped in protective packaging to prevent any damage during transportation. It is placed in a sturdy cardboard box with ample cushioning material to ensure its safety.
Shipping Information:
We ship theVALVE TAPPET using a reliable courier service to ensure timely delivery. The product is securely packaged and labeled with the necessary shipping information to facilitate smooth transit.
Key Detailed Specifications:
Main Structure: Part number 12645725 is a specialized lifter designed specifically for GM V8 engines (such as the 5.3L and 6.2L) equipped with the Active Fuel Management (AFM) system.
Spring Mechanism: The large external spring visible in the pictures is a core component of the AFM system. It is used to de-activate the cylinders upon system command, enabling the cylinder-deactivation feature to improve fuel economy.
Bottom Roller: The steel roller at the base significantly reduces friction between the lifter and the camshaft, extending the service life of the components.
Part Number Update: General Motors has officially replaced this part
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