1969 Dodge A100 Truck Engine: 5.2L V8; w/ Htr Models-79 / 87;. Manual Shut-off Valve. Shut-off Valve. 1970 Dodge A100 Truck Engine: 5.2L V8; w/ Htr Models-79 / 87;. Type: Shut-off Valve. Ensure that this part fits your vehicle by entering your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table.