Product Specifications:
The 2530616 is a heavy-duty, precision-engineered MEUI Fuel Injector (Mechanically Actuated Electronically Controlled Unit Injector – Aftermarket Replacement) designed specifically for Caterpillar C15, C18, C27, C32, and 3408 series diesel engines. These extreme-duty powerplants are the beating heart of massive construction, mining, and industrial equipment, including 385C/390D excavators, 740B articulated trucks, D9T track-type tractors, and large-scale generator sets. Manufactured to verify against rigorous OEM testing protocols to ensure maximum horsepower output, fuel atomization, and durability under severe loads.
📊 Part Number Cross Reference
(Data strictly verified based on application catalog)
| New Part Number | Reman Part Number |
| 253-0616, 2530616 | 10R-3265, 10R3265 |
| 244-7716, 2447716 | – |
| 235-1402, 2351402 | – |
🚛 Fits Applications (Engine & Vehicle)
(Verified application list)
| Make | Machine | Engine and model |
| Caterpillar | Articulated Truck | C15 735B, 740B |
| Caterpillar | Excavator | C15 374F L, C18 385C, 385C FS, 385C L, 390D, 390D L |
| Caterpillar | Track-Type Tractor / Dozer | C15 D9T, C15 824K, C18 834H |
| Caterpillar | Wheel Loader | C18 988H |
| Caterpillar | Motor Grader / Scraper | C18 24M, C18 631G, 3408E 637E, 637G |
| Caterpillar | Compactor / Reclaimer Mixer | C15 826K, C18 836H, C15 RM500, C15 825K |
| Caterpillar | Gen Set / Industrial / Marine | C15, C18, C27, C32, CX31-C15I |
👨🔧 Tech Notes & Installation Guide
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💰 Why Replace the Full Set?
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The Risk: Mixing a brand-new MEUI injector with old, worn units on massive C15/C18 or C27 engines causes severely uneven fuel delivery. This leads to Cylinder Power Imbalance (Heavy Engine Vibration, Knocking, Drivetrain Stress, and potentially catastrophic engine failure under heavy load).
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The Fix: Take advantage of our Volume Discounts to install a matched set of units. This ensures uniform injection pressure across all cylinders and restores smooth factory performance.
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✅ Verification & Calibration:
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These MEUI injectors are mechanically actuated by the camshaft and electronically controlled by the ECM. Strict mechanical adjustments (valve lash and injector height) are required during installation. Additionally, entering the correct injector trim codes into the Caterpillar ECM is necessary for optimal fuel mapping.
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⚠️ Critical Cleaning Step:
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The entire high-pressure fuel delivery system MUST be thoroughly flushed to remove metal shavings and debris. Always install a brand-new, high-efficiency fuel filter to protect the precision plungers from scoring.
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🔍 Explore More Heavy Duty Parts:
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Looking for more options? Browse our complete selection of Fuel Injectors.
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⚖️ Legal Disclaimer
Part numbers, OE numbers, and brand names (e.g., Caterpillar, CAT) 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.
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