Injector 178-6342 1786342 10R-1257 3126B NEW Diesel Engine Parts Common Rail Fuel Injector 178-6342 1786342 Suitable For CAT Excavator Caterpillar Injector 3126 Original New Injector

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Injector 178-6342 1786342 10R-1257 3126B NEW Diesel Engine Parts Common Rail Fuel Injector 178-6342 1786342 Suitable For CAT Excavator Caterpillar Injector 3126 Original New Injector
Details
Product Page Description — English Version Product Overview The Caterpillar CAT 3126 Series Fuel Injector 10R-1257 / 10R1257 is a heavy-duty HEUI diesel fuel injector designed for Caterpillar 3126 series diesel engines, including commonly listed applications for CAT 3126, 3126B and 3126E engines. CAT’s official parts page identifies 10R-1257 as a Cat Reman Fuel Injector, while multiple diesel injector suppliers list this injector with common cross-reference numbers including 178-6342, 177-4762 and 229-5928. This injector is commonly used in industrial diesel repair, remanufacturing, fleet maintenance, construction equipment service, mining machinery repair, truck engine rebuilding and agricultural machinery maintenance. It is suitable for customers searching by CAT part number, reman number, injector group number, replacement number, engine model, equipment model or diesel fuel system keyword.
Category
CAT Diesel Injector
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Description

Product Description:

OE NO 10R-1257
OE NO1 1786342
Material Original new CAT INJECTOR
ENGINE CAT engine
Car Model CAT

 

 

Working Principle of CAT 3126 HEUI Injector

The 10R-1257 / 10R1257 injector belongs to the HEUI-style diesel injection category used in CAT 3126 series engines. HEUI stands for Hydraulic Electronic Unit Injector. In this type of system, engine oil pressure is used to intensify fuel pressure inside the injector, while electronic control manages injection timing and fuel delivery. Supplier descriptions for 10R1257-type injectors describe electronically controlled delivery for improved combustion efficiency and stable engine performance.

Bosch's public technical pages describe unit injector technology as a system where the nozzle holder assembly integrates high-pressure generation and fuel injection, and Bosch also explains that diesel injection nozzles strongly influence engine performance, exhaust behavior and combustion noise. This supports the technical explanation of injector performance, but not a Bosch-to-10R1257 cross number.

 


Item

Description

Product Name

Caterpillar CAT 3126 Series HEUI Diesel Fuel Injector

Main Part Number

10R-1257

Search Format

10R1257

Cross Reference Numbers

178-6342, 1786342, 177-4762, 1774762, 229-5928, 2295928, 177-4752, 1774752

Product Type

Diesel Fuel Injector / HEUI Injector / Reman Fuel Injector

Brand Application

Caterpillar / CAT

Engine Application

CAT 3126, 3126B, 3126E, supplier-listed 3126A / 3126 series applications

Fuel Type

Diesel

Condition Options

Remanufactured, rebuilt, aftermarket replacement, exchange injector

Common Sales Unit

Single injector or set of 6 injectors

Core Charge

Often required in reman market, depending on supplier policy

Main Market

North America, South America, Europe, Middle East, Southeast Asia, Africa, Australia

Buyer Types

Diesel repair shops, fleet maintenance companies, engine rebuilders, equipment owners, parts distributors

 

 


 

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

       
                 

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
202603-TD2-CAT

Why Choose Us:

1.Support multiple payment methods, payment protection;

2.Support ordering samples;

3.The product has undergone a rigorous testing process, and we provide high-quality products;

4.Your choice make difference !

 

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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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