Dear Sir,We are the exclusive agent distribution excavator digging in Vietnam.This machine use ISUZU engine, type: 4JJ1, 4HK1, 6HK1, 6UZ1, 6WG1..The supply of genuine spare parts have a certain number of difficulties, so, we want to find some alternative providers to ensure the interests of our customers.With over 1000 machine sold as well as our future, so we have a huge demand for spare engines.We look forward to your company as our supplier for the product.Look forward to hearing form you.Thanks