4P-2995 Mechanical Injector For Cat 3116 | Superior Fuel Atomization & Combustion Efficiency | Heavy-Duty Diesel Nozzle
1. Product:4P-2995
2. Compatible Equipment: Diesel Fuel Injection Systems
3. Manufacturer: Aftermarket OEM Replacement
4. Condition: Brand New, Fully Tested
5. Origin: ABOSEDE Diesel
6. Shipping period: 3-5 business days
7. Payment terms: T/T, Western Union, PayPal
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Product Introduction
In the realm of heavy-duty diesel mechanics, the difference between a running engine and a stalled operation often lies in the precision of fuel delivery. The 3116 Mechanical Injector 4P-2995 is not merely a replacement part; it is a critical component engineered to restore the rhythmic heartbeat of your Caterpillar 3116 engine. Unlike modern electronic unit injectors that rely on complex software, this mechanical marvel operates on the fundamental principles of hydraulic pressure and spring tension, delivering fuel with consistent accuracy. Designed for durability in harsh environments, the 4P-2995 ensures that every drop of diesel is atomized perfectly, translating raw fuel into usable torque while minimizing the carbon footprint through cleaner combustion.
Technical Specifications & Data
To ensure compatibility and peak performance, we adhere to strict manufacturing tolerances. Below are the critical data points for the 4P-2995 assembly:
Part Number: 4P-2995 (4P2995)
Engine Application: Caterpillar 3116 (Industrial, Marine, and Truck variants)
Injection Type: Mechanical Unit Injector (MUI)
Nozzle Type: Multi-Hole Sacless Design
Opening Pressure: Calibrated to OEM specifications (typically 2300-2500 psi range, dependent on specific engine serial number configuration)
Material: High-Grade Hardened Steel with Anti-Corrosion Coating
Flow Rate: Optimized for standard 3116 displacement cycles
Precision Engineering & Internal Architecture
The structural integrity of the 4P-2995 is defined by its internal geometry. The injector features a precision-ground plunger and barrel assembly, machined to microns of tolerance. This tight clearance is vital for building the necessary hydraulic pressure before the injection event occurs. The nozzle tip is engineered with a specific number of orifices (holes) designed to create a conical spray pattern that matches the combustion chamber's geometry. This ensures that fuel does not impinge on the cylinder walls, preventing oil dilution and excessive wear. The body is constructed from high-tensile steel to withstand the vibrational stresses of heavy machinery without cracking or deforming.
The Mechanical Injection System Context
Understanding the 4P-2995 requires looking at the broader mechanical injection system. In the Caterpillar 3116 architecture, these injectors are actuated by a rocker arm and pushrod mechanism, driven by the engine's camshaft. As the cam lobe lifts, it forces the plunger down within the barrel. This mechanical action pressurizes the fuel instantly. The 4P-2995 is designed to interface seamlessly with the fuel rack system, which controls the rotational position of the plunger to meter the fuel volume. This purely mechanical linkage offers a distinct advantage: simplicity and serviceability. There are no solenoids to burn out or ECUs to confuse, making the 4P-2995 a robust choice for operators who demand reliability over electronic complexity.