Product Specifications:
The 2530618 is a heavy-duty, precision-engineered MEUI Fuel Injector (Mechanically Actuated Electronically Controlled Unit Injector – Aftermarket Replacement) designed specifically for Caterpillar C15, C18, C32, and 3412E series diesel engines. These massive powerplants deliver extreme torque and are widely utilized in heavy construction, mining, and marine applications—including 385C excavators, PM-200 cold planers, AD45B underground articulated trucks, and large-scale generator sets. Manufactured to verify against rigorous OEM testing protocols to ensure optimal fuel atomization, emissions compliance, and maximum durability under severe loads.
📊 Part Number Cross Reference
(Data strictly verified based on application catalog)
| New Part Number | Reman Part Number |
| 253-0618, 2530618 | 10R-2772, 10R2772 |
| 244-7718, 2447718 | – |
| 235-1403, 2351403 | – |
🚛 Fits Applications (Engine & Vehicle)
(Verified application list)
| Make | Machine / Model | Engine Code |
| Caterpillar | Cold Planer | C18 PM-200, PM-201 |
| Caterpillar | Excavator | C18 385C |
| Caterpillar | Mobile Hyd Power Unit | C18 385C |
| Caterpillar | Truck & Underground Art Truck | C18 772, C18 AD45B, AD55 |
| Caterpillar | Wheel Tractor | 3412E 657E, 657G |
| Caterpillar | Gen Set / Industrial / Marine / Petroleum | C15, C15 I6, C18, C32, CX31-C15I, TH35-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 these extreme-duty 6-cylinder or 12-cylinder 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 payload).
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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. Strict mechanical adjustments (valve lash and injector height) are required during installation. Additionally, entering the correct injector trim codes into the ECM is necessary for proper fuel mapping.
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⚠️ Critical Cleaning Step:
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The entire fuel delivery system MUST be thoroughly flushed to remove sludge and metal shavings. 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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Keep your engine running smoothly with our premium Engine Components.
⚖️ 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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