This is a 4HE1 4 Cylinder GMC/Isuzu Diesel Engine that fits 1999-04 NPR NQR W4500 W3500 W5500 that were fleet maintained. We have several low mileage engines ranging from 120,00-210,000 miles. The engines are complete with turbo and injection pump. They do not include starter, alternator, power steering pump or A/C Compressor. These items are available used upon request for additional cost. We highly recommend replacing all cooling hoses and have the cooling system flushed before installation. These engines have been run and tested and deemed road worthy. Buyer is responsible for all freight costs. There will be a $500.00 Core charge added to the final sale price. This is a refundable charge. We pay for freight on core engine. However this charge will not be refunded until the core is received back at Busbee Auto Inc. Engine comes with a 90 day warranty. Your satisfaction is guaranteed. We will ship world wide. Call for pricing, availability and shipping. Call 1-877-564-6307 if you have any further questions and ask for Ronnie, RT, Doug or Louis.