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  • Quality Front Left Rear Brake Wheel Cylinder 8-97139819-0 8971398190 8-97022031-1 8970220311 For ISUZU ELF NKR NPR NQR 4HF1 4BE1 4HG1 — OEM 1-3/16″ (30.2mm) Drum Brake Cylinder With Bleeder Screw factory
  • Quality Front Left Rear Brake Wheel Cylinder 8-97139819-0 8971398190 8-97022031-1 8970220311 For ISUZU ELF NKR NPR NQR 4HF1 4BE1 4HG1 — OEM 1-3/16″ (30.2mm) Drum Brake Cylinder With Bleeder Screw factory
  • Quality Front Left Rear Brake Wheel Cylinder 8-97139819-0 8971398190 8-97022031-1 8970220311 For ISUZU ELF NKR NPR NQR 4HF1 4BE1 4HG1 — OEM 1-3/16″ (30.2mm) Drum Brake Cylinder With Bleeder Screw factory
  • Quality Front Left Rear Brake Wheel Cylinder 8-97139819-0 8971398190 8-97022031-1 8970220311 For ISUZU ELF NKR NPR NQR 4HF1 4BE1 4HG1 — OEM 1-3/16″ (30.2mm) Drum Brake Cylinder With Bleeder Screw factory

Front Left Rear Brake Wheel Cylinder 8-97139819-0 8971398190 8-97022031-1 8970220311 For ISUZU ELF NKR NPR NQR 4HF1 4BE1 4HG1 — OEM 1-3/16″ (30.2mm) Drum Brake Cylinder With Bleeder Screw

Basic Properties
Place of Origin: China
Brand Name: YIMI
Certification: ISO/TS16949
Model Number: ISUZU ELF NKR NPR NQR 4HF1 4BE1 4HG1
Trading Properties
Minimum Order Quantity: 10 pcs
Price: Negotiable
Payment Terms: T/T
Supply Ability: 10000 pcs/month
Tags

Isuzu DMAX clutch slave cylinder

4x4 clutch slave cylinder

Isuzu clutch parts with warranty
Specifications
OEM Part Numbers: 8-97139819-0 / 8971398190 / 8-97022031-1 / 8970220311 Part Name: CYLINDER; WHEEL, FRT BRK / Front Brake Wheel Cylinder
Fitting Position: Front Axle, Left Hand (LH) Rear Bore Diameter: 1-3/16″ (30.2 Mm)
Thread Size: M10 × 1.0 Material: Heavy-Duty Cast Iron With Corrosion-Resistant Finish
Includes: Bleeder Screw Weight: Approx. 1.16 Kg
Engine Compatibility: ISUZU 4HF1, 4BE1, 4HG1, 4JG2, 4JH1 Vehicle Compatibility: ISUZU ELF, NKR, NPR, NQR, NLR
Production Years: 1992 Onwards Condition: Brand New — 100% Quality Inspected
Warranty: 12 Months
High Light:

ISUZU ELF brake wheel cylinder

,

OEM drum brake cylinder with bleeder

,

ISUZU NKR 30.2mm brake cylinder
Product Description
Front Left Rear Brake Wheel Cylinder 8-97139819-0 8971398190 8-97022031-1 8970220311 For ISUZU ELF NKR NPR NQR 4HF1 4BE1 4HG1 — OEM 1-3/16″ (30.2mm) Drum Brake Cylinder With Bleeder Screw
Product Overview

The Front Brake Wheel Cylinder with OEM numbers 8-97139819-0 (also listed as 8971398190, 8-97022031-1, 8970220311) is a verified OEM-grade direct replacement for a wide range of ISUZU light and medium-duty trucks, including the ELF, NKR, NPR, NQR, and NLR series.

This wheel cylinder is the Front Left-Hand (LH) Rear unit for RHD (Right-Hand Drive) vehicles. It features a precision 1-3/16″ (30.2mm) bore and is supplied with a bleeder screw for easy brake system bleeding during installation.

Important Cross-Reference Note: Part numbers 8-97139819-0, 8971398190, 8-97022031-1, and 8970220311 are interchangeable for these applications. The Right-Hand (RH) counterpart is 8-97139818-0 / 8971398180 / 8-97022030-1.
  • OEM Specification — Verified by ISUZU OEM part numbers
  • Precision 1-3/16″ (30.2mm) Bore — Verified by AUTOTEC EBS and manufacturer specifications
  • Heavy-Duty Cast Iron Construction — Provides exceptional durability and heat dissipation
  • Complete with Bleeder Screw — Easy brake system bleeding during installation
  • Verified OEM Fitment — Confirmed for ISUZU ELF, NKR, NPR, NQR models with 4HF1, 4BE1, 4HG1 engines
  • OEM Cross-Reference Verified — Interchangeable with TRW BWN787, Seiken SW-G354, and other major brands
ISUZU Front Left Rear Brake Wheel Cylinder 8-97139819-0
Failure Symptoms

If your front brake wheel cylinder is failing, you may experience one or more of the following symptoms:

  • Brake Fluid Leakage: Visible fluid seeping from the front wheels or inside the brake drum
  • Soft or Spongy Brake Pedal: Pedal feels unusually soft or goes to the floor
  • Reduced Braking Performance: Vehicle takes longer to stop or requires increased pedal pressure
  • Uneven Braking: Vehicle pulls to one side during braking
  • Contaminated Brake Shoes: Brake fluid soaking into the brake shoes
  • Low Brake Fluid Level: Unexplained drop in brake fluid reservoir level
⚠️ A failing brake wheel cylinder can lead to reduced braking performance and potential brake failure — prompt replacement is essential. For optimal performance, it is strongly recommended to replace brake wheel cylinders in pairs (both front wheels).
Vehicle & Engine Compatibility
CRITICAL: This wheel cylinder is the Front Left-Hand (LH) Rear unit for RHD vehicles. The Right-Hand (RH) counterpart is 8-97139818-0 / 8971398180 / 8-97022030-1.
Primary Applications
Brand Model Chassis / Series Engine Years
ISUZU ELF NKR8_, NKQ8_ 4HF1, 4BE1 1992 onwards
ISUZU NKR N-Series 4HF1, 4BE1 1992 onwards
ISUZU NPR N-Series 4HF1, 4BE1, 4HG1 1992 onwards
ISUZU NQR N-Series 4HF1, 4HG1 1992 onwards
ISUZU NLR N-Series 4HF1 1992 onwards
Cross-Reference Part Numbers
Part Number Description Position
8-97139819-0 / 8971398190 Front Brake Wheel Cylinder Left Hand (LH) Rear — This Part
8-97139818-0 / 8971398180 Front Brake Wheel Cylinder Right Hand (RH) Rear — Counterpart
8-97022031-0 / 8970220310 Front Brake Wheel Cylinder LH (earlier variant)
8-97022030-0 / 8970220300 Front Brake Wheel Cylinder RH (earlier variant)
Features & Benefits
OEM Specification
Guarantees factory-fit quality and performance — verified by ISUZU OEM part numbers
Precision 1-3/16″ (30.2mm) Bore
Delivers consistent hydraulic pressure for reliable braking performance
Heavy-Duty Cast Iron Construction
Provides exceptional durability and heat dissipation under demanding commercial conditions
Complete with Bleeder Screw
Facilitates easy brake system bleeding during installation
ISO/TS16949 Certified
Manufactured under strict quality control standards
Direct Bolt-On Fitment
No modifications required — engineered as a direct match for the original cylinder
100% New — No Core Charge
Guarantees zero wear, immediate braking performance, and full service life
Quality Control & Verification
QC Item Verification Method
Dimensional Accuracy Precision inspection to verify 1-3/16″ (30.2mm) bore diameter and mounting specifications
Material Composition Heavy-duty cast iron analysis to verify structural integrity
Bore Surface Test 100% surface testing to ensure optimum sealing surface
Leakage Test 100% hydraulic pressure test to guarantee zero fluid leakage
Rubber Component Test EPDM material verification for heat and corrosion resistance
Durability Cycle Test 500+ hour fatigue testing to verify 200,000+ km service life
Final Assembly Inspection 100% visual and functional inspection before packaging
Installation & Maintenance Recommendations
IMPORTANT: Professional Installation Recommended
Replacing brake wheel cylinders is a critical safety procedure. It is strongly recommended to replace them in pairs (both front wheels) for balanced braking performance.

Pre-Installation Checklist:

  • CRITICAL: This is the Front Left-Hand (LH) Rear cylinder — the RH counterpart is 8-97139818-0 / 8971398180
  • Quantity Required: 2 per vehicle (one for each front wheel)
  • Inspect brake shoes, drums, and hardware for wear — replace as necessary
  • Use new brake fluid (DOT 3 or DOT 4) from a sealed container
  • Critical: Replace wheel cylinders in pairs for balanced braking performance

Maintenance Schedule:

  • Inspection: Every 50,000 km / 12 months
  • Fluid Replacement: Every 2 years or 40,000 km
  • Replacement: Immediately if failure symptoms appear
Packaging & Supply
  • Packaging: Neutral box, color box, or customer brand package
  • Pack Quantity: 1 PC
  • Weight: Approx. 1.16 kg
  • Suitable for: Wholesale distributors, truck parts retailers, commercial vehicle repair shops, and fleet owners
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