Cummins QSB4.5 Engine

Engine Rebuilding Service for Komatsu D31P-20

At Diesel Engines Canada, we specialize in providing top-notch engine rebuilding services for the Komatsu D31P-20 Crawler Loader, which is equipped with the reliable Cummins QSB4.5 engine. Our commitment to quality and precision ensures that your engine will perform at its best, delivering the power and efficiency you expect from your heavy machinery. Whether you are in the agricultural or construction sector, our engine rebuilding service is designed to meet your specific needs, ensuring minimal downtime and maximum productivity.

Why Choose Our Engine Rebuilding Service?

When it comes to remanufacturing your Cummins QSB4.5 engine, we utilize ISO 9001:2015 approved parts that adhere to the strict tolerances set by OEM specifications. This meticulous attention to detail guarantees that your remanufactured engine will not only meet but exceed the performance standards required for your Komatsu D31P-20. Our experienced technicians are dedicated to restoring your engine to its original specifications, ensuring reliability and longevity.

Advanced Remanufacturing Process

Our remanufacturing process is far superior to the standard rebuilds typically performed in a garage environment. Located in Concord, Ontario, our specialized engine machine shop is equipped with state-of-the-art machinery and tools necessary for comprehensive engine remanufacturing. By keeping all machining work in-house, we significantly reduce waiting times, allowing you to get back to work faster.

Our detailed engine remanufacturing procedure includes:

• Disassembly of the engine
• Manual scrubbing of heavy debris
• Engine degreasing
• Hot alkaline spray jet cleaning
• Pneumatic wire brushing
• Ultrasonic cleaning
• Removal of broken studs
• Measuring all components to manufacturer specifications
• Machining of cylinder bore to accept new pistons
• Checking for warpage with a straight edge
• Milling cylinder head surface
• Cutting valve seats
• Gnurling valve guides
• Machining valve surfaces or replacement
• Testing valve spring resistance
• Magnafluxing cylinder heads for crack detection
• Adjusting valve clearance
• Assembling the cylinder head
• Machining crankshaft to accept new bearings
• Assembling the engine with all new components
• Spin testing the engine
• Taping all ports and packaging the engine in a corrosion-inhibiting bag

Brand New Surplus Engines Available

In addition to our comprehensive rebuilding services, we also offer a selection of brand new surplus engines. If your Cummins QSB4.5 engine cannot be rebuilt, we can provide you with a new engine that fits seamlessly into your Komatsu D31P-20. Our team can assist in transferring exterior components to ensure emissions compatibility and a perfect fit, minimizing any additional effort on your part.

Experience You Can Trust

With over three decades of experience in the engine remanufacturing industry, Diesel Engines Canada is your trusted partner for all your engine rebuilding needs. Our knowledgeable staff is here to help you choose the right option for your specific situation. If you have any questions or need assistance, please do not hesitate to reach out to us via email or call us for availability on our new surplus engines.

At Diesel Engines Canada, we are committed to providing you with the highest quality engine rebuilding services, ensuring that your Komatsu D31P-20 Crawler Loader is always ready to perform at its best. Contact us today to learn more about our services and how we can help you keep your machinery running smoothly.