Comtec Engine Starter JB23 with harness. A self-made instruction manual is also included, so I think it can be easily installed. Early models are also on sale. It seems to be compatible with Wagon R MH21s. Please check the product condition in the photos. The setup instructions are also illustrated on the main unit, so it's easy. I have checked the product before listing it, so I cannot provide support for issues such as not being able to install it or start the engine. Since it is a used item, it is basically 2N (no claims, no returns). Please purchase with your understanding. Installation is at your own risk. Please be sure to perform the initial settings written on the main unit. I think it's very good because it has a turbo timer. First come, first served, thank you. For those who install it on an MT (manual transmission) vehicle, I will also include the clutch release method, so please send a message at the time of purchase that you will be installing it on an MT vehicle. This is for vehicles with a key type. Please judge the product condition from the photos. Recently, a person named daddy sinceity purchased the item from another site and said the engine wouldn't start. I thought it might be a initial defect, and as a courtesy, I exchanged it for a different one. The engine started properly, and the exchanged item was very rare, so I asked them to exchange it again. They got angry and said, "You said you would exchange it!" and even left a negative review. Therefore, I will not accept returns or exchanges, thank you. I did this as a courtesy, and it's disheartening to be treated that way.