Product Description:
| OE NO | 577-7633 |
| OE NO1 | 557-7627 |
| Material | Original new CAT INJECTOR |
| ENGINE | CAT engine |
| Car Model | CAT |
1. Core Basic Specific-ations
|
Parameter Item |
Specific-ation Details |
|
Part Number |
577-7633 (5777633, CA5777633, 240-5310) |
|
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 porous nozzle design; 3200bar 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 (including precision sliding tests); Strict multi-stage quality control |
|
Condition & Warranty |
New Aftermarket; 12-Month Quality Warranty; MOQ: 1 Piece (Batch Discounts for ≥8 Pieces); Origin: China; Supply Ability: 340 Sets/Month |
|
Physical Data |
Package Size: 46×16×16 cm; Net Weight: 2.4 kg; Gross Weight: 2.55 kg; Neutral Export Packaging (Customizable) |
|
Key Parameters |
Fuel Type: Diesel; Operating Voltage: 24V; Material: Heat-treated alloy steel with reinforced anti-corrosion coating; Spray Droplet Size: 3.0μm; Nozzle Type: 7-hole porous |
2. Compatible Equipment & Applic-ations
|
Applic-ation Field |
Typical Applicable Equipment |
|
Heavy Construction Excavators |
c-at 330C, 330D, 336D, 320D2, 340D, 349D, 352D Series Excavators (C9-powered) |
|
Motor Graders & Loaders |
c-at 140M, 160M, 120M, 140H Series Motor Grader, 973C, 966H, 980H, 988H Crawler Loader (C9-powered) |
|
Industrial Generators |
c-at C9-Powered Industrial Generator Sets, D250GC, D300GC, XQP300, XQP350, XQP400, XQP450, XQP500 Generators |
|
Other Heavy Equipment |
C7/C9-powered trucks, mining machinery, earthwork compactors, marine equipment, agricultural machinery, and construction cranes |
3. Performance & Quality Advantages
|
Key Performance Metric |
Core Benefit |
|
Injection Precision |
HEUI system and 7-hole precision porous nozzles ensure accurate fuel delivery (error ≤±0.05%) and timing, matching real-time engine demand for optimal combustion and reduced emissions; spray cone angle deviation within ±0.5% (ISO 4010), meeting the high-precision requirements of modern diesel injection systems and optimizing fuel dispersion in direct-injection chambers. |
|
Fuel Efficiency |
Superior fuel atomization (3.0μm droplet size) and optimized 7-hole nozzle design promote complete combustion, improving fuel economy by 45% and reducing long-term operating costs for equipment; compatible with C9 engine's fuel efficiency optimization design, ensuring efficient fuel utilization and lower emissions, while minimizing impurity-related wear. |
|
Durability |
Heat-treated alloy steel body and reinforced anti-corrosion coating enhance wear and corrosion resistance, ensuring long service life (up to 650,000 km) in harsh environments, matching the C9 engine's 15,000-hour B10 life and 30,000-hour overhaul cycle; precision-machined components pass strict sliding tests to prevent needle valve sticking, nozzle clogging, and premature wear from fuel impurities. |
|
Supply & Service |
In-Stock Availability (up to 140 units), flexible MOQ with batch discounts, 12-month warranty, fast global delivery (2-7 days), neutral/customizable packaging, and professional after-sales technical support for troubleshooting, maintenance guidance, and advice on fuel filtration to prevent impurity contamination. |
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 (a major cause of premature component wear); use dedic-ated tools to avoid component damage; replace seals and copper washers; torque to c-aterpillar OEM specific-ations (40-45N・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 (poor filtration leads to impurity-related wear); check electrical connections and coil performance periodically; clean 7-hole nozzles with ultrasonic cleaner if clogged (use 0.14mm 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 porous nozzle from blockage, as it is a high-precision component critical to injection performance. |
|
Troubleshooting |
Check for 7-hole nozzle clogging (often caused by fuel impurities), 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, which can cause irreversible damage. |
|
C9 |
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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 |
|
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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 .Safe packaging with standard exporting wooden box.
2. We have full stock, and can deliver within short time.Many styles for your choices.
3 .3-12 months warrantry,depends on what parts.
4.24 hours online service,give you response within 10 minutes.
- 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
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