Hey there, if you're working on an older carbureted engine and the automatic choke isn't working right, this Borg Warner VC487 Choke Pull-Off might be the fix. It's a vacuum-operated diaphragm that helps control the choke plate once the engine starts. Pretty simple part, but super important for a smooth cold start and proper warm-up. The package is about 6x4x3 inches and weighs a bit over 3 pounds. Just make sure it matches your specific engine application before ordering. If your choke is sticking open or closed, swapping this out can save you a lot of headache. A genuine Borg Warner part that's built to last.