Cummins QSB4.5 Engine
- SKU
- Komatsu-PC120-6-EXCEL-Engine
Complex engine purchases require a follow-up quote — no direct checkout.
Description / Cummins QSB4.5 Engine
Engine Rebuilding Service for Komatsu PC120-6 EXCEL
At Diesel Engines Canada, we specialize in providing top-notch engine rebuilding services for the Komatsu PC120-6 EXCEL Hydraulic Excavator, specifically equipped with the reliable Cummins QSB4.5 engine. Our commitment to quality and precision ensures that your excavator will operate at peak performance, minimizing downtime and maximizing productivity on your job site. Whether you are facing engine issues or simply looking to enhance the longevity of your equipment, our expert team is here to help.
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 deliver dependable power and efficiency, just as it did when it was first installed. Our process is designed to restore your engine to its original specifications, ensuring optimal performance and reliability.
Advanced Remanufacturing Process
Our engine rebuilding service goes beyond the standard rebuild process typically offered in most garages. At our state-of-the-art facility in Concord, Ontario, we are equipped with advanced engine machining equipment that allows us to perform every step of the remanufacturing process in-house. This not only reduces waiting times but also ensures that every aspect of the rebuild meets our high standards of quality. Our comprehensive remanufacturing process 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 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 engine 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 PC120-6 EXCEL. Our team has the expertise to transfer over the necessary exterior components to ensure emissions compatibility and a perfect fit, allowing you to get back to work with minimal additional effort.
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 engine 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.
At Diesel Engines Canada, we are dedicated to providing you with the highest quality engine rebuilding services for your Komatsu PC120-6 EXCEL Hydraulic Excavator. Trust us to keep your equipment running smoothly and efficiently, so you can focus on what you do best.