Product Description:
| OE NO | 557-7633 |
| OE NO1 | 387-9433 |
| Material | Original new CAT INJECTOR |
| ENGINE | CAT engine |
| Car Model | CAT |
1. Core Basic Specific-ations
|
Parameter Item |
Specific-ation Details |
|
Part Number |
557-7633 (5577633, CA5577633, 20R-8069) |
|
Engine Compatibility |
c-aterpillar C9 Series Diesel Engines (8.8L displacement, 250-450HP); Also fits C7/C9 engines for cross-model applicability |
|
Injection System |
HEUI System; Electronically Controlled Electromagnetic Injector; 7-hole precision nozzle design; 2700bar high-pressure compatible |
|
Fitment Style |
Direct OEM Replacement, Plug-and-Play (No Modific-ations Required); Professional installation recommended |
|
Quality Standard |
c-aterpillar OEM Standard; ISO 9001, IATF 16949 Certified; 100% Bench-Tested; Strict multi-stage quality control |
|
Condition & Warranty |
New Aftermarket; 12-Month Quality Warranty; MOQ: 1 Piece (Batch Discounts for ≥12 Pieces); Origin: China; Supply Ability: 420 Sets/Month |
|
Physical Data |
Package Size: 41×16×16 cm; Net Weight: 2.15 kg; Gross Weight: 2.3 kg; Neutral Export Packaging (Customizable) |
|
Key Parameters |
Fuel Type: Diesel; Operating Voltage: 24V; Material: Heat-treated alloy steel with anti-corrosion coating; Spray Droplet Size: 3.5μm |
2. Compatible Equipment & Applic-ations
|
Applic-ation Field |
Typical Applicable Equipment |
|
Heavy Construction Excavators |
c-at 330C, 330D, 336D, 320D2, 340D Series Excavators (C9-powered) |
|
Motor Graders & Loaders |
c-at 140M, 160M, 120M Series Motor Grader, 973C, 966H Crawler Loader (C9-powered) |
|
Industrial Generators |
c-at C9-Powered Industrial Generator Sets, D250GC, D300GC, XQP300, XQP350, XQP400 Generators |
|
Other Heavy Equipment |
C7/C9-powered trucks, mining machinery, earthwork compactors, marine equipment, and agricultural machinery |
3. Performance & Quality Advantages
|
Key Performance Metric |
Core Benefit |
|
Injection Precision |
HEUI system and 7-hole precision nozzles ensure accurate fuel delivery (error ≤±0.2%) and timing, matching real-time engine demand for optimal combustion and reduced emissions; spray cone angle deviation within ±1.2% (ISO 4010), meeting the high-precision requirements of diesel injection systems. |
|
Fuel Efficiency |
Superior fuel atomization (3.5μm droplet size) promotes complete combustion, improving fuel economy by 37% and reducing long-term operating costs for equipment; compatible with C9 engine's fuel efficiency optimization design, ensuring efficient fuel utilization. |
|
Durability |
Heat-treated alloy steel body and anti-corrosion coating enhance wear and corrosion resistance, ensuring long service life (up to 520,000 km) in harsh environments, matching the C9 engine's 15,000-hour B10 life and 30,000-hour overhaul cycle; the precision-machined structure prevents needle valve sticking and nozzle clogging. |
|
Supply & Service |
In-Stock Availability (up to 200 units), flexible MOQ with batch discounts, 12-month warranty, fast global delivery (3-9 days), neutral/customizable packaging, and professional after-sales technical support for troubleshooting and maintenance guidance. |
4. Installation & Maintenance Tips
|
Item |
Details |
|
Installation |
Disconnect the battery negative pole and release fuel line pressure before installation; thoroughly clean the fuel system and injector interface according to standard installation procedures to avoid impurity entry; use dedic-ated tools to avoid component damage; replace seals and copper washers; torque to c-aterpillar OEM specific-ations (35-40N・m); verify part number compatibility; professional installation is recommended to ensure performance and prevent leakage. |
|
Maintenance Interval |
Inspect injector performance every 6,000–10,000 operating hours (consistent with C9 engine maintenance cycle); replace fuel filters every 200 hours or 5,000 km to keep fuel clean; check electrical connections and coil performance periodically; clean 7-hole nozzles with ultrasonic cleaner if clogged (use 0.19mm diameter copper wire for stubborn impurities, avoid steel wire) to maintain atomization quality and prevent needle valve sticking. |
|
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 and dust; avoid dust, moisture, extreme temperature and physical damage to the nozzle; protect the 7-hole nozzle from blockage, as it is a high-precision component. |
|
Troubleshooting |
Check for 7-hole nozzle clogging, fuel pressure leakage or poor electrical contact if the engine misfires, loses power or has excessive fuel consumption; use KTS diagnostic tools to read fault codes (e.g., 3-6 for high injector current) for accurate troubleshooting; measure valve needle diameter with high-precision gauge if performance declines (replace if worn beyond standard); confirm C9 engine compatibility; refer to c-aterpillar official service manual for professional maintenance and avoid improper disassembly of precision components. |
|
C9 |
||||||||
|
10R-2828 |
10R-4764 |
10R-47641 |
10R-4844 |
10R-7221 |
10R-7222 |
10R-7223 |
10R-9002 |
10R-9003 |
|
11R-1582 |
20R-1259 |
20R-1917 |
20R-8060 |
20R-8061 |
20R-8062 |
20R-8063 |
20R-8064 |
20R-8065 |
|
20R-8068 |
20R-8069 |
20R-8427 |
20R-8846 |
20R-8968 |
20R-9433 |
225-0117 |
235-5261 |
236-0957 |
|
238-8092 |
240-8063 |
242-0857 |
245-3516 |
254-4330 |
254-4339 |
254-4340 |
258-8745 |
265-8106 |
|
266-4446 |
267-3360 |
267-3361 |
267-9710 |
267-9717 |
267-9722 |
267-9734 |
293-4067 |
293-4071 |
|
293-4072 |
293-4073 |
293-4074 |
320-2940 |
328-2573 |
328-2574 |
328-2576 |
328-2577 |
328-2578 |
|
328-2580 |
387-9431 |
387-9432 |
387-9433 |
387-9434 |
387-9435 |
387-9436 |
387-9437 |
387-9438 |
|
387-9439 |
387-9484 |
459-8473 |
53L-8062 |
553-2592 |
557-7633 |
557-7634 |
557-7637 |
573-4231 |
|
573-4235 |
577-7633 |
|
|
|
|
|
|
|
caterpillar Fuel Injector Series - Engine - Equipment Appliccccation Table
| Fuel Injector / Engine Series | Common Injection Technology | Corresponding Engine Platform | Common ccccat Models / Equipment Platforms |
| 3116 Series | Mechanical Injection / Early Electronic Platform | 3116, 3116T, 3116TA, 3116DIT | M318, M320 Wheel Excavators; 135H Motor Grader; D6M Dozer |
| 3126 / 3126B Series | HEUI | 3126, 3126B | 120H Motor Grader; 950G Series II Wheel Loader; 950G Platform |
| 3126E Series | HEUI | 3126E | Commonly used in medium-duty construction and industrial platforms similar to the 3126 appliccccation range |
| C6.4 Series | ACERT Injection Platform | C6.4 ACERT | 320D / 320D L; 323D L / LN; 320D LRR; 320D FM |
| C6.6 Series | ACERT Injection Platform | C6.6 ACERT | 320D / 320D L (C6.6 versions); 320E LN; 323E LN |
| C7 Series | HEUI | C7, C7 ACERT | 120K Motor Grader; 950H Wheel Loader |
| C7.1 Series | Common Rail / Later Electronic Injection | C7.1, C7.1 ACERT | 320D2 / D2 L, 326D2, 330D2 Excavators; 950K, 950, 962, 930M Wheel Loaders; Generator Sets |
| C9 Series | HEUI-B | C9, C9 ACERT | 330D / 330D L / 330D MH; construction and industrial platforms |
| C10 Series | Electronic Unit Injection Family | C10 | 140H, 143H, 160H, 163H, 14H, 16H Motor Graders; 814F Wheel Dozer; 815F Compactor; 816F Landfill Compactor; 966G II, 972G II Wheel Loaders; D7R II Dozer; 725 / 730 Articulated Trucks; R1600G, R1700G LHD; W345B II Wheel Excavator; 345B / 365B Excavators |
| C12 Series | Electronic Unit Injection | C12, C12 Marine | Widely used across 140H, 143H, 160H, 163H, 14H, 16H; 966G II, 972G II; D7R II; 725 / 730; W345B II; 345B / 365B; also widely used in marine appliccccations |
| C13 Series | MEUI | C13, C13 ACERT | 345D L Excavator; 730C EJ Articulated Dump Truck; Generator Sets; Industrial Power Platforms |
| C15 Series | MEUI | C15, C15 ACERT | 770 Off-Highway Truck; 374D L / 374F L Excavators; 365C Demolition Excavator; R3000H LHD; Industrial Power and Generator Sets |
| 3406E Series | EUI | 3406E | AD30 Underground Mining Truck; 16H Motor Grader; 824G Series II Wheel Dozer; 826G Series II Landfill Compactor |
| C18 Series15 | EUI / Later Electronic Injection Platform | C18, C18 ACERT | Generator Sets; Marine Appliccccations; Large Industrial and Mining Platforms |
Why Choose Us:
1 .Strong support from professional sales/engineer/technican team,shipment and after-service department.
2. Used and new genuine parts, China OEM parts available.
3 .3-12 months warrantry,depends on what parts.
4.The product has undergone a rigorous testing process, and we provide high-quality products;
- Contact Detail:
- ADD:Huangpu Machinery City, No.585-A, No.138, Southeast Road, Huangpu District, Guangzhou City,
Guangdong Province
Cellphone:+86 13790195672 Whatsapp::+86 13790195672
Email:edwardswilliam1988@gmail.com
Hot Tags: caterpillar injector c9 fuel injector t434154 557-7633 387-9433 557-7627 557-7637 328-2574 10r-7222 for caterpillar c9 engines e330d e336d original new injector, China caterpillar injector c9 fuel injector t434154 557-7633 387-9433 557-7627 557-7637 328-2574 10r-7222 for caterpillar c9 engines e330d e336d original new injector suppliers, american diesel injection, injector motocultor diesel, r6 injectors, roto diesel injection pump, tractor pulling injection pumps, ultrasonic diesel injector cleaning solution
