Caterpillar Injector C9.3 For C-a-t 169-7408 1697408 Excavator Parts E336E C9.3 Engine Injector 460-8213 20R-5075 460-8213 456-3509 20R5075 4563509 Original New Injector

Parameter Item

Specific-ation Details

Part Number

169-7408 (1697408); Cross-References: 232-1168, 156-3895, 204-2467, 173-4061

Engine Compatibility

c-aterpillar C9.3 Series Diesel Engines (9.3L Displacement, 270–390HP); Compatible with 3126B, 3116 Series Engines (Engine Code 6830 SE)

Injection System

Common Rail Direct Injection (CRDI); 6-hole SAC Precision Nozzle; 0.015 inch hole size; 160° spray pattern; 2200–2600bar Rated Pressure

Fitment Style

Direct OEM Replacement; Plug-and-Play (No Modific-ations Required)

Quality Standard

c-aterpillar OEM Standard; ISO 9001 Certified; 100% Professional Factory Bench-Tested

Condition & Warranty

New Aftermarket; 12-Month Quality Warranty; MOQ: 1 Piece (Negotiable); Origin: China/USA; Supply Capacity: 10000 Pieces/Month

Physical Data

Net Weight: 1.5kg (3.31 lbs); Gross Weight: 1.7kg; Package Size: 21×8×6cm; Neutral/Original Export Packaging (Customizable)

Key Parameters

Fuel Type: Diesel (Low-Sulfur Compatible); Operating Voltage: 24V; Body Hardness: HRC63-66; Response Time: Millisecond Level; Atomization Particle Size: 15μm

Applic-ation Field

Typical Applicable Equipment

Construction Excavators

c-aterpillar 330F, 336F Series Excavators (C9.3-Powered); Perkins ER Pillar Excavators

Wheel Loaders

c-aterpillar 966L, 972L Series Wheel Loaders (C9.3-Powered)

Marine Vessels

c-aterpillar 3116-Powered Marine Vessels (1991-1993); C9.3-Powered Marine Equipment

Industrial & Voc-ational Equipment

c-aterpillar C9.3, 3126B-Powered Industrial Machinery and Voc-ational Vehicles

Key Performance Metric

Core Benefit

Injection Precision & Atomization

6-hole SAC nozzle (0.015 inch) with 160° spray pattern and CRDI technology ensure ultra-precise fuel metering (error ≤±2%), superior atomization (15μm particle size), and optimized combustion, reducing fuel waste by 4–6% and meeting strict emission standards.

Durability & Wear Resistance

High-strength high-speed steel body with vacuum quenching heat treatment (HRC63-66) enhances wear and corrosion resistance, extending service life to match the C9.3 engine's overhaul cycle in harsh working environments.

Reliability & Stability

100% professional factory bench testing (high-pressure performance, spray pattern, sealing) ensures consistent performance; fast solenoid response enables multiple injections, reducing noise and resolving engine misfires, power loss, and excessive fuel consumption.

Direct OEM replacement enables plug-and-play installation without modific-ations, saving time and labor costs; 12-month warranty, flexible MOQ (1 piece), and fast delivery (2-7 days) reduce long-term maintenance and downtime costs.

Item

Details

Installation

Disconnect the battery negative pole and release fuel line pressure before installation; thoroughly clean the fuel system and injector interface to avoid impurity entry; use dedic-ated tools to prevent component damage; replace seals and copper washers; torque to c-aterpillar OEM specific-ations (42–47N·m); professional installation is recommended; verify part number and engine compatibility before installation.

Maintenance Interval

Inspect injector performance every 7,000–12,000 operating hours; replace fuel filters every 200 hours to maintain fuel cleanliness (critical for nozzle protection); periodically check electrical connections and solenoid response to ensure stable operation.

Storage

Store in a dry, clean, and well-ventilated area (-15℃ to 45℃); package with anti-rust materials and sealed plastic bags to prevent rust, dust, and physical damage to the 6-hole SAC nozzle and high-speed steel body; use original packaging for long-term storage if available.

Troubleshooting

Check for nozzle clogging, fuel pressure leakage, or poor electrical contact if the engine misfires, loses power, or has excessive fuel consumption; use professional diagnostic tools to read fault codes; refer to c-aterpillar official service manual for professional maintenance to avoid damaging precision components; pay attention to atomization effect during troubleshooting.