Cat 175 Series Injector 319-8470: The Hydraulic Heart Of Heavy Industry
1. Product:319-8470
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 high-stakes environment of heavy construction and power generation, the margin between peak performance and costly downtime is measured in microns. The Cat 175 Series Injector (Part No. 319-8470) represents the apex of mechanical fuel injection technology. Designed for the legendary Cat C15 and C18 Acert™ engines, this injector is not merely a component; it is a precision hydraulic pump integrated directly into the cylinder head. Unlike modern electronic unit injectors that rely heavily on solenoid timing, the 175 series relies on the intense physical forces of the engine's camshaft to generate the pressure required for efficient combustion. This product detail explores the engineering resilience of the 319-8470, positioning it as a critical asset for maintaining the "iron" heartbeat of your heavy machinery.
🛠️ Technical Specifications & Data Sheet
The 319-8470 is engineered to withstand extreme thermal and mechanical loads. Its specifications define the operational envelope of the engine it serves.
| Feature | Specification |
|---|---|
| Part Number | 319-8470 (Remanufactured/New) |
| Engine Series | Cat® C15, C18, 175 Series |
| Injection Type | Hydraulically Actuated Electronically Controlled Unit Injector (HEUI) / Mechanical Hybrid |
| Operating Pressure | Extreme High Pressure (Internal Generation) |
| Fuel Type | Diesel |
| Core Application | Excavators, Wheel Loaders, Mobile Generators |
🏗️ Structural Anatomy: The Plunger and Barrel
The core of the 319-8470 is the plunger and barrel assembly. This is where the conversion of mechanical energy into hydraulic pressure occurs.
Material Science: The plunger is machined from high-tensile steel and lapped to a mirror finish. The clearance between the plunger and barrel is so tight (less than a micron) that it creates a seal without the need for rubber O-rings, relying instead on the viscosity of the diesel itself.
Cam-Driven Action: The injector is physically driven by the engine's camshaft. As the cam lobe lifts the follower, the plunger descends, compressing the diesel trapped in the barrel. This mechanical linkage ensures that injection pressure is directly proportional to engine load, providing a natural "power on demand" characteristic.
🏭 Application Scope: Powering the Yellow Iron
The 319-8470 is the standard for some of Caterpillar's most versatile engines. You will find this injector installed in:
Cat® 336/349 Excavators: Where hydraulic demand fluctuates wildly.
Cat® 966/980 Wheel Loaders: Requiring high torque at low RPMs.
Mobile Generator Sets: Providing stable frequency output for construction sites.
In these applications, the injector must endure constant vibration, shock loads, and thermal cycling. The 319-8470 is built with a robust outer body designed to dissipate heat into the cylinder head, preventing the injector from overheating during continuous heavy-load operations.