Engine & Cooling

The 550–660cc engines in Japanese kei trucks are famously durable, but 25-year-old imports arrive needing the same refresh any engine would: a rebuilt or replaced carburetor, a fresh timing belt, and a cooling system that can handle summer loads. This category covers the full top-to-bottom refresh — carburetors and rebuild kits, timing belt and tensioner kits, water pumps, radiators, thermostats, gasket sets, and engine mounts — for Suzuki F5A/F6A, Daihatsu EF, and Honda E05A engines. A $95 timing belt kit today is a lot cheaper than a bent-valve rebuild later. If your truck runs rough, starts hard, or creeps toward hot on the gauge, start here.