4088431 New Aftermarket Fuel Injector fits Cummins K19 QSK19 QSK23 – GOTTO PARTS

Product Specifications:

Engineered to dominate the most extreme environments—from deep-pit heavy mining and continuous industrial power generation to relentless marine propulsion—the 4088431 is a premium aftermarket Fuel Injector. Precision-manufactured for the massive Cummins K19, QSK19 (CM500), and QSK23 (19L/23.1L) diesel engines, this heavy-duty component aggressively eliminates rough idling, poor fuel economy, and critical power loss under peak operational loads. Built to exact OEM specifications with advanced high-stress metallurgy and precise internal valving, it ensures a true plug-and-play installation. Industrial fleet managers and marine engineers can entirely bypass expensive dealership diagnostic delays, instantly restoring optimal fuel atomization and maximized mechanical torque to keep large-scale construction, power, and marine operations strictly on schedule.

📊 Part Number Cross Reference

(Data verified via global catalog search – Extensive Interchangeability)

Original Equipment (Cummins)	Alternate / Reman Ref
4088431	4088431NX, 4088431PX, 4088431RX
4087889	4087889RX
4076533	–

🚛 Fits Applications (Engine & Vehicle)

(Verified application list)

Make	Model / Application	Engine Size	Year	Engine Code & Specs
Cummins	Heavy Mining / Construction	19L	Various	K19, QSK19 (CM500)
Cummins	Generator Sets / Industrial	23.1L	Various	QSK23 (CM2250 K109, CM500)
Cummins	Marine Power	19L / 23.1L	Various	K19, QSK19, QSK23

👨‍🔧 Tech Notes & Installation Guide (FAQ)

Q: Why should I replace the full set of 6 injectors on my K19 / QSK19 / QSK23 engine?

A: Operating massive 19L or 23.1L mining equipment or marine vessels with a degraded injector causes severe fuel imbalance and dangerous cylinder washing. This directly results in violent engine shaking under heavy generator or propulsion loads, elevated exhaust temperatures, and a critical loss of operational power. We highly recommend utilizing our Volume Discounts to install a completely synchronized set of 6 units to ensure perfectly matched cylinder firing and instantly restore maximum factory torque.

Q: Does the 4088431 injector require IMA coding?

A: No. This heavy-duty fuel injector is built for direct drop-in installation. Because it is manufactured to precise mechanical tolerances to match official OEM nominal flow data, your engine’s ECU will utilize its built-in self-adaptive learning (fuel trim) to automatically synchronize the injection. It requires zero complex ECU programming or dealership calibration, providing a true plug-and-play solution that drastically reduces equipment downtime on the site.

Q: What is the critical cleaning step before installation?

A: Mining, industrial, and marine environments expose fuel systems to extreme dust and abrasive contaminants. You must thoroughly flush the entire fuel supply system and install brand-new OEM-spec fuel filters before cranking the engine to prevent immediate internal nozzle scoring and firmly protect your warranty.

🔍 Explore More Heavy Duty Parts:

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⚖️ Legal Disclaimer

Part numbers, OE numbers, and brand names mentioned above are for reference and identification purposes only. This product is a compatible aftermarket replacement part and is NOT manufactured, sponsored, or affiliated with the original equipment manufacturers.