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Yimi (Guangzhou) Automotive Parts Co, Ltd

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China ISUZU 4JB1 4JA1 Glow Plug 11V M12×1.25 Thread Double Coil Design Diesel Cold
China ISUZU 4JB1 4JA1 Glow Plug 11V M12×1.25 Thread Double Coil Design Diesel Cold

  1. China ISUZU 4JB1 4JA1 Glow Plug 11V M12×1.25 Thread Double Coil Design Diesel Cold
  2. China ISUZU 4JB1 4JA1 Glow Plug 11V M12×1.25 Thread Double Coil Design Diesel Cold

ISUZU 4JB1 4JA1 Glow Plug 11V M12×1.25 Thread Double Coil Design Diesel Cold

  1. MOQ: 20 PCS
  2. Price: Negotiable
  3. Get Latest Price
Overall Length 135.4 mm
Packaging Details Neutral Package or as customers’ request
Delivery Time 5-8 Work Days
Fitting Depth 24 mm
Payment Terms T/T
Spanner Size 12 mm
Net Weight 0.070 kg
Supply Ability 10000 pcs/month
Resistance 3 ohms or higher
Thread Size M12 × 1.25
Voltage 11 V
Tightening Torque 15–25 N·m
Model Number 4JB1 4JA1
Certification ISO/TS16949
Brand Name YIMI
Place of Origin CHINA

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  1. Product Details
  2. Company Details

Product Specification

Overall Length 135.4 mm Packaging Details Neutral Package or as customers’ request
Delivery Time 5-8 Work Days Fitting Depth 24 mm
Payment Terms T/T Spanner Size 12 mm
Net Weight 0.070 kg Supply Ability 10000 pcs/month
Resistance 3 ohms or higher Thread Size M12 × 1.25
Voltage 11 V Tightening Torque 15–25 N·m
Model Number 4JB1 4JA1 Certification ISO/TS16949
Brand Name YIMI Place of Origin CHINA
High Light 11V Glow Plug ,M12×1.25 Thread Glow Plug ,Double Coil Design Diesel Cold Start Heater
ISUZU 4JB1 4JA1 Glow Plug 8-94140115-0 8941401150 OEM Fit
Product Overview

Glow Plug 8-94140115-0 8941401150 for ISUZU 4JB1 4JA1 NHR 100P 600P — Verified OEM Fit 11V M12×1.25 Diesel Cold Start Heater

This glow plug is a verified direct-fit replacement for ISUZU NHR / 100P / 600P / NKR / NPR / TFR / TFS light trucks and pickups equipped with the 4JB1 / 4JA1 diesel engine. This critical cold-start heating component is responsible for heating the combustion chamber to ensure reliable engine starting in cold conditions.

Working Principle

The glow plug is a pencil-type electric heating element installed in the cylinder head combustion chamber. When activated, it rapidly heats its tip to pre-heat the combustion chamber air, ensuring diesel fuel atomizes and ignites reliably in low temperatures. The ISUZU 4JB1 / 4JA1 glow plug operates at 11V with a double coil design for rapid heat-up and self-regulating temperature control.

Failure Symptoms
  • Hard starting or no-start in cold weather
  • Excessive white smoke after cold start
  • Rough idle after cold start
  • Glow plug indicator light stays on or flashes
  • Increased glow plug resistance (3 ohms or higher)
  • Engine starts but stalls immediately
Critical Inspection Note: ISUZU service manuals require that glow plugs be tested for continuity using a circuit tester. Always replace glow plugs as a complete set of four to ensure balanced pre-heating across all cylinders. Apply anti-seize compound to the glow plug threads before installation to prevent seizure.
Technical Specifications
Specification Value Source
Part Number (Short) 8-94140115-0 ISUZU OEM Parts Database
Part Number (Long) 8941401150 ISUZU OEM Parts Database
Voltage 11 V Lucas LP028 specification
Thread Size M12 × 1.25 Lucas LP028 specification
Overall Length 135.4 mm Lucas LP028 specification
Fitting Depth 24 mm Lucas LP028 specification
Recommended Torque 20 N·m Denso DG-108 specification
Break-Off Torque 45 N·m HERTH+BUSS JAKOPARTS specification
OEM Cross-Reference
Type Number
Primary OEM — Short 8-94140115-0
Primary OEM — Long 8941401150
Alternate Formats 8-94140-115-0, 94140115, 9414-0115
Competitive Cross-Reference NGK 7995, Denso DG-108, Beru GN061, Champion CH306, Lucas LP028
ISUZU 4JB1 4JA1 Glow Plug 8-94140115-0
Product Details
Part Number: 8-94140115-0 8941401150 Product Name: Glow Plug
Car Model: 4JB1 4JA1 Engine Model: 4JB1 4JA1
Condition: 100% Brand New Origin: China Mainland
Vehicle & Engine Compatibility

Primary Applications: ISUZU ELF 150, ELF 250, 100P, 600P, NHR, NPR, NKR, Pickup, Trooper, MU Wizzard, Faster Rodeo

Non-ISUZU Applications: Opel Campo, Opel Frontera, Vauxhall Brava Pickup, Vauxhall Frontera, JMC 1030/1040

Important Fitment Notes: This glow plug is designed for 11V / M12×1.25 applications. Confirm voltage and thread size before ordering. Available in multiple suffix variants with different tip lengths. Replace as a complete set of four.
Features & Benefits
Feature Benefit
11V Double Coil Pencil-Type Design Rapid heat-up and self-regulating temperature control for reliable cold starts
OEM-Exact M12×1.25 Thread Precision-matched to ISUZU 4JB1 / 4JA1 cylinder head — direct drop-in fit
135.4 mm Overall Length / 24 mm Fitting Depth Exact fit for ISUZU NHR / 100P / 600P combustion chamber
ISO/TS 16949 Quality System Full traceability with material certificates and batch inspection reports
Installation Guidelines
IMPORTANT: Glow plug replacement must be performed on a cold engine only. Never attempt to remove glow plugs from a hot cylinder head.
  1. Ensure engine is completely cold. Disconnect battery negative terminal.
  2. Remove glow plug electrical connector and bus bar.
  3. Use 12 mm deep socket to remove old glow plug.
  4. Test new glow plug for continuity and resistance.
  5. Apply high-temperature anti-seize compound to threads.
  6. Tighten to 20 N·m using torque wrench.
  7. Reconnect electrical components and battery.
Maintenance Schedule
  • Every 20,000 km: Test glow plugs for continuity and resistance
  • Every 40,000-50,000 km: Inspect for carbon buildup or tip deformation
  • When cold starting difficulty occurs: Test glow plugs immediately
  • Whenever cylinder head is removed: Inspect and test glow plugs

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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  • 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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