Cummins QSB4.5 Engine

Engine Rebuilding Service for Komatsu D31S-20

At Diesel Engines Canada, we specialize in providing top-notch engine rebuilding services for the Komatsu D31S-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 optimally, extending the life of your equipment and enhancing its efficiency. Whether you are in the agricultural or construction sector, our expert team is here to help you get your machinery back in action with minimal downtime.

Why Choose Our Engine Rebuilding Service?

When it comes to engine remanufacturing, we take pride in our meticulous approach. Our process is designed to exceed the standard rebuild practices typically found in local garages. At our state-of-the-art facility in Concord, Ontario, we utilize ISO 9001:2015 approved parts that adhere to the strict tolerances set by OEM specifications. This guarantees that your remanufactured Cummins QSB4.5 engine will deliver the dependable power and performance you expect from your Komatsu equipment.

Comprehensive Remanufacturing Process

Our engine rebuilding service involves a detailed and thorough remanufacturing process that ensures every component is restored to its original condition. We do not cut corners; our extensive 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 surfaces
• 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 the crankshaft to accept new bearings
• Assembling the engine with all new components
• Spin testing the engine
• 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 is beyond repair, we can provide you with a new engine that fits seamlessly into your Komatsu D31S-20. Our team can assist in transferring exterior components from your old engine to ensure emissions compatibility and a perfect fit, minimizing any additional effort required on your part.

Experience You Can Trust

With over three decades of experience in the engine remanufacturing industry, Diesel Engines Canada has built a reputation for excellence and reliability. Our knowledgeable staff is always ready to assist you in choosing the right option for your needs. Whether you have questions about our rebuilding process or want to inquire about our new engine availability, we encourage you to reach out to us via phone or email for more information.

Contact Us Today

Don’t let engine troubles slow you down. Trust Diesel Engines Canada for all your engine rebuilding needs. We are dedicated to providing you with the highest quality service and products to keep your Komatsu D31S-20 Crawler Loader running smoothly. Call or email us today to check on the availability of our brand new surplus engines or to discuss your engine rebuilding options!