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Yimi (Guangzhou) Automotive Parts Co, Ltd

  • China,Guangzhou
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China DLLA153SM029 Fuel Injector Nozzle with 185 bar Opening Pressure for ISUZU 6BG1
China DLLA153SM029 Fuel Injector Nozzle with 185 bar Opening Pressure for ISUZU 6BG1

  1. China DLLA153SM029 Fuel Injector Nozzle with 185 bar Opening Pressure for ISUZU 6BG1
  2. China DLLA153SM029 Fuel Injector Nozzle with 185 bar Opening Pressure for ISUZU 6BG1

DLLA153SM029 Fuel Injector Nozzle with 185 bar Opening Pressure for ISUZU 6BG1

  1. MOQ: 20 PCS
  2. Price: Negotiable
  3. Get Latest Price
Nozzle Type Throttle-Type (S-Type)
Delivery Time 5-8 Work Days
Opening Pressure 185 bar (18.1 MPa)
Packaging Details Neutral Package or as customers’ request
Payment Terms T/T
Material W6Mo5Cr4V2 / 18CrNi8 High-Speed Steel
Nozzle Dimensions 20 / 20 / 75 mm
Supply Ability 10000 pcs/month
Hardness HRC 62–65 (Vacuum Hardened)
Injection Pipe Nut Torque 28–32 N·m (21–24 lb·ft)
Nozzle Model DLLA153SM029
Net Weight 0.054 kg
Model Number 6BG1 EX200
Certification ISO/TS16949
Brand Name YIMI
Place of Origin CHINA

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  1. Product Details
  2. Company Details

Product Specification

Nozzle Type Throttle-Type (S-Type) Delivery Time 5-8 Work Days
Opening Pressure 185 bar (18.1 MPa) Packaging Details Neutral Package or as customers’ request
Payment Terms T/T Material W6Mo5Cr4V2 / 18CrNi8 High-Speed Steel
Nozzle Dimensions 20 / 20 / 75 mm Supply Ability 10000 pcs/month
Hardness HRC 62–65 (Vacuum Hardened) Injection Pipe Nut Torque 28–32 N·m (21–24 lb·ft)
Nozzle Model DLLA153SM029 Net Weight 0.054 kg
Model Number 6BG1 EX200 Certification ISO/TS16949
Brand Name YIMI Place of Origin CHINA
High Light DLLA153SM029 Fuel Injector Nozzle ,185 bar Opening Pressure Diesel Injection Nozzle ,Throttle-Type Nozzle Tip
ISUZU 6BG1 EX200 Fuel Injector Nozzle 9-43261045-0 DLLA153SM029 OEM Fit

Fuel Injector Nozzle 9-43261045-0 9432610450 DLLA153SM029 for ISUZU 6BG1 6BG1T 4BG1 4BG1T Hitachi EX200 EX200-5 — Verified OEM Fit Zexel 105025-0290 Diesel Injection Nozzle
This fuel injector nozzle with OEM numbers 9-43261045-0 and 9432610450 — also referenced as DLLA153SM029 and Zexel 105025-0290 — is a verified direct-fit replacement for ISUZU 6BG1 / 6BG1T / 4BG1 / 4BG1T diesel engines used in various industrial and commercial applications.

Working Principle

The fuel injector nozzle is the precision element at the tip of the fuel injector. It receives pressurized fuel from the injection pump and atomizes it into a fine mist for efficient combustion. The DLLA153SM029 nozzle features a throttle-type (S-type) design with precision-ground needle and seat for accurate fuel metering.
Manufactured from high-speed steel (W6Mo5Cr4V2 / 18CrNi8) and vacuum-hardened to a hardness of HRC 62-65, ensuring wear resistance and long service life. The opening pressure for this nozzle is 185 bar (18.1 MPa), critical for proper fuel atomization and combustion efficiency.

Failure Symptoms
  • Engine misfiring or rough idle — clogged or worn nozzle holes cause uneven fuel delivery
  • Excessive black smoke — poor atomization leads to incomplete combustion
  • Power loss and increased fuel consumption — inefficient combustion reduces engine performance
  • Hard starting — worn nozzles cause poor fuel delivery during startup
  • Knocking or abnormal engine noise — irregular fuel spray patterns can cause combustion knock
Technical Specifications
Verification ItemData / StandardSource / Method
Part Number (Short)9-43261045-0ISUZU OEM Parts Database
Part Number (Long)9432610450ISUZU OEM Parts Database
Nozzle ModelDLLA153SM029Zexel specification
Zexel Reference105025-0290 / H105025029Zexel parts database
Nozzle TypeThrottle-Type (S-Type)Product specification
Opening Pressure185 bar (18.1 MPa)Qingdao Yalong specification
MaterialW6Mo5Cr4V2 / 18CrNi8 High-Speed SteelProduct specification
HardnessHRC 62-65 (Vacuum Hardened)Product specification
Nozzle Dimensions20 / 20 / 75 mmdieselrepair.kz specification
Net Weight (per unit)0.054 kgdieselrepair.kz specification
OEM Cross-Reference
TypeNumber
Primary OEM — Short9-43261045-0
Primary OEM — Long9432610450
Nozzle ModelDLLA153SM029
Zexel Reference105025-0290 / H105025029
ISUZU OEM1-15311-263-0 / 1153112630
ISUZU 6BG1 Fuel Injector Nozzle 9-43261045-0 DLLA153SM029
Product Details
Part Number:9-43261045-0 DLLA153SM029Product Name:Fuel Injector Nozzle
Car Model:EX200Engine Model:6BG1
Condition:100% Brand NewOrigin:China Mainland
Vehicle & Engine Compatibility

Primary Applications:

BrandModelEngineYears
ISUZUNPC / NPR / NPS6BG1 / 6BG1T1990s-2000s
ISUZUForward6BG1 / 6BG1T1990s-2000s
HitachiEX200 / EX200-5 / EX200-66BG1 / 6BG1T1990s-2000s
HitachiEX120-5 / EX1354BG1 / 4BG1T1990s-2000s

⚠️ Important Fitment Notes:

  • This nozzle is designed for the DLLA153SM029 specification
  • The 6BG1 injection system uses an opening pressure of 185 bar (18.1 MPa)
  • Nozzles should be replaced as a complete set of six (for 6BG1) or complete set of four (for 4BG1)
  • The Zexel 105025-0290 is the primary reference number
Features & Benefits
FeatureBenefit + Verification Signal
Throttle-Type (S-Type) DesignPrecision needle and seat geometry ensures optimal fuel atomization
High-Speed Steel ConstructionWithstands extreme combustion pressures and temperatures for long service life
Vacuum Hardening (HRC 62-65)Superior wear resistance and dimensional stability under heavy-duty operation
185 bar Opening PressureMatches OEM injection system requirements for proper fuel atomization
OEM-Exact FitmentDirect replacement without modification — confirmed by dimensional inspection
Installation Guidelines

⚠️ IMPORTANT: Fuel injector nozzle service must be performed by a qualified diesel technician in a clean workshop. Always clean the injector and surrounding area thoroughly before disassembly. Never reuse old copper washers.

  1. Preparation: Clean the injector and cylinder head area thoroughly
  2. Disassembly: Remove the injector using proper tools
  3. Inspection: Inspect the injector body for wear or damage
  4. Cleaning: Clean all components with clean diesel fuel
  5. Nozzle Installation: Install the new nozzle with a new copper washer
  6. Opening Pressure Test: Verify opening pressure is 185 bar (18.1 MPa)
  7. Leakage Test: Verify no leakage at pressures below opening pressure
  8. Installation: Install the injector into the cylinder head with new components
  9. Reconnection: Reconnect fuel lines and bleed the fuel system
  10. Final Check: Start the engine and check for fuel leaks

Recommended Torque Values:

FastenerTorque
Injection Pipe Connector49-59 N*m (36-43 lb*ft)
Injection Pipe Nut28-32 N*m (21-24 lb*ft)
Packaging & Supply
  • Standard Packaging: Anti-rust oil + VCI film + neutral carton
  • Custom Packaging: Neutral box, color box, or customer-branded packaging
  • Suitable For: Diesel injection repair shops, ISUZU parts distributors, fleet maintenance centers
  • Minimum Order Quantity: 6 PCS (complete set for 6-cylinder engine)

Company Details

Bronze Gleitlager

,

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 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Exporter,Trading Company,Seller

  • Year Established:

    2005

  • Total Annual:

    8000000-10000000

  • Employee Number:

    100~150

  • Ecer Certification:

    Verified Supplier

Yimi (Guangzhou) Automotive Parts Co., Ltd. Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ... Yimi (Guangzhou) Automotive Parts Co., Ltd. Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ...

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Get in touch with us

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  • Yimi (Guangzhou) Automotive Parts Co, Ltd
  • Unit 1313, Building 5, Changsheng DDP Fashion Center, No. 17 Dachi Road, Tancun, Shijing Subdistrict, Baiyun District, Guangzhou City.
  • https://www.isuzucarsparts.com/

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