Excavator 3126B Diesel Engine Fuel Injector 178-6342 10R-1257 1786342 177-4752 1774752 High Quality OEM for D6N D5N 953C 963C
Product Details
Caterpillar 3126B diesel fuel injector
,Excavator fuel injector 178-6342
,OEM fuel injector for D6N D5N
Product Page Main Description
Caterpillar CAT 3126B / 3126E Fuel Injector 177-4752 Overview
The Caterpillar CAT Fuel Injector 177-4752, also searched as 1774752, CAT1774752, Injector GP 177-4752, 10R-1257, 10R1257, 178-6342, 1786342, and PAI 390078X, is a heavy-duty diesel fuel injector designed for Caterpillar 3126B and 3126E engine platforms. This injector is widely used in Caterpillar industrial engines, track loaders, track-type tractors, motor graders, wheel loaders, integrated toolcarriers, pipelayers, and truck engine applications.
This product is suitable for professional diesel engine repair, heavy equipment fleet maintenance, construction machinery parts distribution, mining equipment support, remanufactured engine rebuilding, and aftermarket diesel fuel injection system replacement.
The injector is engineered to deliver precise fuel metering, stable atomization, controlled injection timing, and reliable combustion performance under demanding industrial operating conditions.
Product Information Database
| Product Attribute | Product Data |
| Product Name | Caterpillar CAT 3126B / 3126E Fuel Injector |
| Main Part Number | 177-4752 |
| Other Search Numbers | 1774752, CAT1774752 |
| Replacement / Reman Numbers | 10R-1257, 10R1257 |
| Alternative Numbers | 178-6342, 1786342 |
| Aftermarket Reman Number | PAI 390078X, 390078X |
| Product Type | Diesel Fuel Injector / Injector GP / Fuel Injector Unit |
| Engine Family | Caterpillar 3126 Series |
| Confirmed Engine Applications | CAT 3126B, CAT 3126E |
| Fuel Type | Diesel |
| System Category | Diesel Fuel Injection System |
| Product Condition Options | New, Remanufactured, Aftermarket Replacement, OEM-type Replacement |
| Application Segment | Heavy equipment, industrial engine, construction machinery, truck engine, fleet maintenance |
| Installation Type | Direct replacement, engine serial number verification required |
| Primary Buyer Groups | Diesel repair shops, heavy equipment owners, machinery parts distributors, fleet maintenance companies, reman engine rebuilders |
| Recommended Sales Positioning | Industrial grade, precision fuel delivery, stable combustion, replacement-ready, OE-number searchable |
| 3126 | ||||||||
| 0R-8633 | 1OR-0781 | 1OR-1267 | 1OR-9239 | 2C0273 | 4CR0197 | 10R-0781 | 10R-0782 | 10R-1257 |
| 10R-1262 | 10R-1306 | 10R-9237 | 10R-9239 | 10R-9348 | 20R-0758 | 20R-8758 | 111-7916 | 116-7150 |
| 128-6601 | 131-7150 | 135-5459 | 138-8756 | 153-5938 | 155-1819 | 155-8723 | 156-8895 | 162-0218 |
| 162-9610 | 169-7408 | 169-7410 | 169-7411 | 171-9704 | 171-9710 | 173-4059 | 173-9267 | 173-9268 |
| 173-9272 | 173-9379 | 174-7526 | 174-7527 | 177-4752 | 177-4753 | 177-4754 | 178-0199 | 178-6342 |
| 178-6432 | 179-6020 | 180-7431 | 183-6797 | 188-1320 | 196-4229 | 198-4752 | 198-6605 | 198-6877 |
| 218-4109 | 222-5963 | 222-5965 | 222-5966 | 222-5967 | 222-5968 | 222-5972 | 232-1168 | 232-1170 |
| 232-1171 | 232-1173 | 232-1183 | 495-0327 | OR-9350 | ||||
ccaterpillar 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 Series | EUI / Later Electronic Injection Platform | C18, C18 ACERT | Generator Sets; Marine Appliccccations; Large Industrial and Mining Platforms |
Are your products new or used? What about your remanufactured parts?
We have two types of products: 100% brand new parts, and high-quality remanufactured parts. We don't sell used or simple refurbished parts. For remanufactured parts, we process them with strict full steps: purchase used core, do surface treatment, replace all worn components with brand new parts, re-assemble, and do 100% full inspection, only qualified products will be shipped.
Do you test all your goods before delivery?
Yes, we have 100% test before delivery.
What is your terms of packing
1. Carton box
2. Your brand oem packing
3. Packing for your requirements
Why Choose Us:
1. Let’s talk—we have NO barrier in language
2. Request for more item information---there are nearly 2000 products for your option!
3.One-to-one products factory.Ensure the best quality;
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