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Company News About Product Description: The 0R-3742 injector is a premium, original-spec fuel injection component specifically engineered for c-aterpillar 3116 series diesel engines.

Product Description: The 0R-3742 injector is a premium, original-spec fuel injection component specifically engineered for c-aterpillar 3116 series diesel engines.

2026-04-02

Product Description: The 0R-3742 injector is a premium, original-spec fuel injection component specifically engineered for c-aterpillar 3116 series diesel engines. Its core advantages include superior durability, ultra-precise fuel delivery, extreme environmental adaptability, and low total cost of ownership. Manufactured to c-aterpillar’s original technical standards and subjected to 3-stage quality control testing, it integrates advanced electromagnetic control technology and precision CNC machining to ensure perfect compatibility with the c-aterpillar 3116 fuel system. The 0R-3742 features a reinforced alloy body and upgraded one-piece sealing structure, enabling stable operation in harsh conditions (high temperature ≤120℃, high pressure, heavy dust, high humidity). Its optimized injection timing and uniform atomization promote complete fuel combustion, reducing fuel consumption by 8%-12% and lowering harmful emissions to meet international environmental standards. With identical dimensions, interfaces, and mounting points to the original part, it supports direct, tool-free replacement—minimizing downtime and maintenance costs. Ideal for construction equipment, industrial generators, and heavy-duty vehicles equipped with c-aterpillar 3116 engines, it delivers reliable, long-lasting power support.

Basic Information	Specific-ations & Key Features
Product Name	c-aterpillar 3116 Diesel Engine Injector Assembly (Original Standard)
Model Number	0R-3742 (OR3742) (Exclusive Fit for c-aterpillar 3116 Series)
Cross-Compatible Models	0R-3002, 0R-3190, 0R-3389, 0R-3580, 4P-2995 (100% Compatible with c-aterpillar 3116 Engines)
Applicable Engines	Primary: c-aterpillar 3116 series diesel engines; Secondary: 3114, 3126 series (Plug-and-Play Compatibility)
Product Condition	Brand New Original / Original-Standard Remanufactured (100% Pre-Delivery Testing, Match OEM Quality)
Control Type	Electromagnetic (ECU Electronic Control) Ultra-Precise, Fast Response, Anti-Interference, Stable Signal
Fuel Compatibility	Diesel (National/Non-Standard, Low/High Sulfur) Anti-Impurity, Anti-Coking, Anti-Corrosion, Multi-Fuel Adaptable
Net Weight	0.56kg Lightweight, Easy to Install/Disassemble, Saves Maintenance Time
Packaging Dimensions	22.5cm × 12cm × 12cm High-Strength Shockproof/Waterproof Packaging, Damage-Resistant During Shipment

Core Technical Parameters	Values & Competitive Advantages
Injection Opening Pressure	24 ± 0.5 MPa Ultra-Precise Pressure Control, Optimized for c-aterpillar 3116’s Working Cycle
Working Pressure Range	52–145 MPa Wide Operating Range, Stable Performance Under Full/Idle/Extreme Loads
Dynamic Response Time	≤ 1.0 ms Ultra-Fast Response, Ensures Smooth Power Output & Stable Combustion
Single Injection Duration	≤ 0.7 ms Precise Fuel Metering, Minimizes Waste & Incomplete Combustion
Spray Pattern	Optimized c-aterpillar S-Type Atomization Uniform Spray, Maximizes Combustion Efficiency, Reduces Fuel Use
Needle Valve Clearance	0.6–1.8 μm Ultra-Precise Fit, Leak-Proof Sealing, Extends Service Life
Sealing Surface Roughness	Ra ≤ 0.04 μm High-Strength Sealing, Withstands High Pressure & Temperature
Key Component Hardness	HRC 63–67 Ultra-Wear-Resistant, Handles Long-Term High-Load Operation
Injection Cycle Life	≥ 1,600,000 cycles Super Durable, Reduces Replacement Frequency & Costs

Structural Components	Material & Manufacturing Process	Performance Benefits
Injector Body	Reinforced High-Strength Alloy Steel; Integral Forging + CNC Machining + Triple Heat Treatment	Anti-Fatigue, Pressure/Corrosion-Resistant; Thrives in Harsh c-aterpillar 3116 Operating Environments
Needle Valve Pair	High-Purity Alloy; Precision Grinding + Gapless Pairing + Nitriding + Anti-Wear Coating	Uniform Atomization, Leak-Proof, Low Wear; Ensures 3116’s Power & Combustion Efficiency
Control Spring	High-Temp Alloy Spring; Dual-Spring Linkage + Anti-Fatigue/Deformation + Precision Calibration	Precise Opening Pressure Control, Fast Needle Valve Closure; Boosts Injection Accuracy & Stability
Solenoid Valve	High-Precision Anti-Interference Coil; Sealed Waterproof/Dustproof + High-Temp Coating + Anti-Oxidation	Fast Response, Anti-Interference; Stable in Complex Environments; Perfect Match for 3116 ECU

Applicable Equipment	Typical Models (c-aterpillar 3116-Powered)
Excavators	c-aterpillar 320B, 322B, 325B, 330B Stable Performance for Heavy-Duty, Long-Hour Operation
Wheel Loaders	c-aterpillar 928G, 938G, 950G Low Failure Rate, High Efficiency for Heavy-Load Tasks
Motor Graders	c-aterpillar 120H, 140H, 160H Reliable Operation, Minimizes Maintenance Downtime
Other Equipment	Industrial Generators, Heavy-Duty Trucks, Marine Power Units (3116/3126-Powered) Wide Adaptability, Stable Power Supply

Core Product Advantages	Detailed Benefits (Customer-Centric)
c-aterpillar 3116 Exclusive Fit	OEM-matching dimensions and interface—direct replacement without modific-ation or debugging. Reduces maintenance time, boosts equipment uptime, and eliminates compatibility risks.
Ultra-Durable Construction	Triple heat-treated alloy body and anti-wear components deliver ≥1.6 million injection cycles. Resists fatigue, corrosion, and wear—lowers replacement costs and extends service life.
Precision Fuel Control	ECU-controlled solenoid valve (≤1.0ms response) and optimized atomization reduce fuel consumption by 8%-12%. Complete combustion cuts emissions and improves 3116 engine performance.
Extreme Environmental Adaptability	One-piece sealing and waterproof/dustproof design handle high temps (≤120℃), heavy dust, and humidity. Compatible with all diesel types—ideal for harsh construction sites.
Low Maintenance Cost	Lightweight, tool-free installation; low failure rate; pre-tested for reliability. Minimizes labor costs, downtime, and total ownership expenses for equipment operators.
OEM-Quality Assurance	Manufactured to c-aterpillar’s original standards, 3-stage quality testing, and 100% pre-delivery inspection. Matches OEM performance—reliable, long-lasting power for 3116 engines.

Replacement Scenarios	Symptoms (c-aterpillar 3116 Engines)
Power Loss	Unsteady idle, weak acceleration, hard starting, black/white smoke, and significant power drop—unable to handle heavy loads.
Increased Fuel Consumption	Fuel use up 10%+ under standard conditions; power output does not match fuel consumption—wasting resources and increasing costs.
Mechanical Malfunctions	Cylinder misfire, abnormal engine noise, injector leakage, excessive oil return, or needle valve jamming—causing equipment shutdown.
Other Abnormalities	ECU error codes, engine jitter, inability to run at full load, increased emissions, or unstable operation—shortening engine component life.

Keywords: c-aterpillar 3116 injector, 0R-3742 injector, OR3742 fuel injector, c-aterpillar 3116 diesel injector, original standard 0R-3742, 0R-3742 replacement injector

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Product Description: The 0R-3742 injector is a premium, original-spec fuel injection component specifically engineered for c-aterpillar 3116 series diesel engines.

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