logo

ISUZU Brake Wheel Cylinder 1 Inch Bore 16-Tooth Gear Heavy-Duty Cast Iron Rear Right Hydraulic Assembly

Basic Properties
Place of Origin: CHINA
Brand Name: YIMI
Certification: ISO/TS16949
Model Number: NKR 4JB1
Trading Properties
Minimum Order Quantity: 20 PCS
Price: Negotiable
Payment Terms: T/T
Supply Ability: 10000 pcs/month
Specifications
Bore Size: 1 Inch (25.4mm) Gear Teeth: 16 Teeth
Installation Position: Rear Right (RH) Material: Heavy-Duty Cast Iron
Brake Type: Drum Brake Net Weight: 0.9 Kg
High Light:

1 Inch Bore Brake Wheel Cylinder

,

16-Tooth Gear Hydraulic Brake Wheel Cylinder Assembly

,

Heavy-Duty Cast Iron Rear Right Brake Wheel Cylinder

Product Description
ISUZU Brake Wheel Cylinder 8-97139840-0 8971398400
Precision-engineered replacement brake wheel cylinder for ISUZU NKR series light-duty trucks with 4JB1 diesel engines. This rear right brake wheel cylinder assembly converts hydraulic pressure into mechanical force to activate brake shoes against the drum.
Part Number & Compatibility
Part Number 8-97139840-0 / 8971398400
Cross Reference Numbers 8-97078684-0 / 8970786840, 8-94128141-1/2/3 / 8941281411/1412/1413, JMC 3502210A1
Car Model ISUZU NKR
Engine Model 4JB1, 4JH1, 4JG1, 4JJ1, 4HG1
Installation Position Rear Right (RH)
Numbering Note: Verify the specific part number and installation position based on your vehicle configuration before ordering.
Technical Specifications
  • Bore Size: 1 Inch (25.4mm)
  • Gear Teeth: 16 teeth for brake shoe adjustment
  • Material: Heavy-duty cast iron construction
  • Brake Type: Drum brake system
  • Weight: 0.9 kg
  • Quality Standard: ISO/TS16949 certified
Product Image
ISUZU Brake Wheel Cylinder 8-97139840-0 showing detailed construction and mounting features
Working Principle
The brake wheel cylinder is mounted on the brake backing plate and connected to the master cylinder via brake fluid lines. When the brake pedal is depressed, hydraulic pressure pushes the piston outward, transmitting force through the push rod to expand brake shoes against the rotating drum. When released, return springs pull the piston back, separating the shoes from the drum.
Failure Symptoms
Symptom Probable Cause
Reduced braking performance Worn internal seals; hydraulic leakage; insufficient braking force
Vehicle pulls to one side during braking Single-side cylinder malfunction; uneven braking force
Brake drag after pedal release Stuck piston; cylinder fails to return
Visible brake fluid leakage Worn/damaged cylinder seals
Soft or spongy brake pedal Internal leakage or air in hydraulic system
Compatible Applications
Primary Applications: ISUZU NKR, NHR, NLR, NMR, ELF series (1994+)
Extended Applications: ISUZU QKR (2011+), ELF Mexico (2016+), JMC 1030-1043 series, N720
Features & Benefits
1 Inch Precision Bore
Provides adequate hydraulic thrust for responsive, reliable braking
Heavy-Duty Cast Iron
Excellent corrosion resistance and mechanical strength for long-term reliability
16-Tooth Precision Gear
Enables precise brake shoe clearance adjustment
Two-Level Mounting Boss
Ensures secure and reliable installation on brake backing plate
Pre-Assembled Seals
Prevents brake fluid leakage and contamination
Standard Bleeder Screw
Facilitates brake system bleeding for optimal performance
Important Installation Warnings
  • Pair Replacement Recommended: Replace brake wheel cylinders in pairs (left and right) for balanced braking force
  • Associated Components: Inspect brake shoes, drums, and lines during replacement
  • Brake Fluid Replacement: Replace with DOT 3 or DOT 4 fluid and bleed system
  • Professional Installation: Critical safety component - professional installation strongly recommended
Packaging & Supply
Packaging Neutral or customized packaging
Quantity per Package 1 piece per box
Brand DAMIN / BZLP / OEM Standard
Origin China
Delivery Time 5-8 working days
Supply Capacity 1000 pieces/month