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Buy High-Performance Fuel Injector Pumps for Komatsu Engines
Built for pressure. Ready for work. Engineered for Komatsu.
Your Komatsu engine is only as strong as its fuel system. At Goldfarb & Associates, we offer a comprehensive lineup of new and rebuilt fuel injection pumps built specifically for Komatsu diesel engines. From compact SAA4D107 engines to large industrial blocks like the SAA6D125E-5, we have the exact-match injector pump to restore power, boost fuel efficiency, and reduce downtime.
Get the Right Pump for Komatsu With No Substitutes
Match by engine code, part number, or application.
Each Komatsu engine demands precise fueling. That’s why our injector pumps are matched exactly to Komatsu’s engineering specs. Whether you're replacing a worn CP1 unit on a Komatsu ISDE 8.9L or upgrading the fuel delivery on a PC400LC-8 excavator, we have the correct fit.
Our stock includes trusted brands like:
- Bosch – Common rail and CP1 systems
- Denso – Built for heavy-duty off-road engines
- NipponDenso – Ideal for compact and mid-range Komatsu platforms
- Diesel Kiki / Zexel – Precision mechanical fuel delivery for Komatsu diesels
All pumps are cross-referenced and inspected for compatibility with your original engine configuration.
Find Pumps for Komatsu's Most Demanding Engine Models
From utility machines to large excavators—we have your engine covered.
Explore injector pump options for a wide range of Komatsu engines, including:
All new and rebuilt pumps are thoroughly inspected and ready for installation.
Choose Between New and Rebuilt Options with Confidence
Same performance. Different price point.
Our new fuel injection pumps are sourced directly or through OEM-spec manufacturers, delivering the longest possible service life with zero prior wear. These are ideal for emission-critical applications, newer equipment, or fleets where uptime is essential.
Our rebuilt injector pumps offer reliable, inspected performance at a reduced cost. Every rebuilt unit undergoes:
- Full disassembly and ultrasonic cleaning
- Seal, spring, and plunger replacements
- Calibration to factory fuel pressure specs
- Endurance and flow inspection under load
With both options available, you choose based on budget, machine hours, and job requirements.
Don't Risk Performance with Generic Fit Pumps
Komatsu engines require exact flow, pressure, and response.
Injector pumps control the entire combustion process. A poor match means:
- Delayed throttle response
- High fuel consumption
- Increased emissions
- Engine knock or misfire
Our inventory includes injector pumps built to Komatsu's standards, so you avoid unnecessary recalibration or retrofit issues. Every model maintains correct timing and delivery specs.
Get Reliable Fuel Delivery with Quality Brands
We only carry injector pumps from trusted names.
When you buy from Goldfarb & Associates, you’re investing in fuel systems backed by decades of diesel engineering. Our brands include:
- Bosch – Renowned for common rail and inline pump innovation
- Denso – Known for rugged high-pressure designs
- Zexel (Diesel Kiki) – Precise mechanical control for classic diesels
- NipponDenso – Perfect for compact diesel platforms
- Zexel A-Series – Proven on older Cummins-Komatsu integrations
Every pump is matched with valid OEM part references to ensure accuracy.
We Support Your Search from Start to Finish
Send your part number. We'll do the rest.
Matching injection pumps isn't always easy. Our diesel parts team is here to help. Share any of the following:
- Engine model (e.g., SAA4D107, 4D130)
- Original equipment number (e.g., 6271-71-1110)
- Pump code (e.g., 0-445-020-070N)
- Machine application (e.g., PC400LC-8, DFM02-03)
We'll verify fitment and offer available options, including core-free rebuilt models or brand-new units.
Get Your Injector Shipped Fast and Protected
Fast shipping. No downtime. No core return headaches.
All pumps ship from our U.S. warehouse and are carefully packaged to prevent damage during transit. Many units ship the same day in working hours. Some models require core return; others do not—our listings clearly explain this.
What you can expect:
- Sealed, labeled units
- Fitment notes included
- Secure packaging
- Responsive after-sales support
FAQs About Komatsu Fuel Injection Pumps
1. Can I use these pumps on non-Komatsu equipment?
No. Each pump is engineered to meet the specifications of Komatsu engines. Using it outside its intended range may cause damage or underperformance.
2. What is the difference between CP1 and Common Rail?
CP1 pumps are Bosch's first-generation common rail systems. They are still in wide use. Other pumps labeled "common rail" may be newer generations but serve similar roles with updated controls.
3. How do I know if I need a rebuilt or new pump?
Choose new if the engine is Tier 3/4, requires emissions control, or runs under continuous load. Rebuilt pumps are perfect for budget-conscious repairs with normal operating cycles.
4. Are Diesel Kiki and Zexel the same?
Yes. Zexel was formerly Diesel Kiki. These pumps are often labeled with both brand names and remain widely used in Komatsu applications.
5. Do you offer installation support?
We provide technical documentation when available. However, installation should be done by a certified diesel technician, especially for high-pressure systems.
Power Your Komatsu Diesel the Right Pump Today
Get your machine back on the job with a fuel injection pump that delivers precise, consistent power.
At Goldfarb & Associates, we stock injection pumps that fit your Komatsu engine exactly—no guesswork, no modification, and no downtime. Choose from new or rebuilt units across trusted brands like Bosch, Denso, NipponDenso, and Zexel.
Contact our team or browse by part number to find the perfect fit. Power up your Komatsu engine with confidence—shop now.
