ISUZU Clutch Master Cylinder with 13/16 Inch Bore High-Strength Aluminium and Hard Anodized Piston for NPR 100P 4HF1
Basic Properties
Place of Origin:
CHINA
Brand Name:
YIMI
Certification:
ISO/TS16949
Model Number:
NPR 100P 4HF1
Trading Properties
Minimum Order Quantity:
20 PCS
Price:
Negotiable
Payment Terms:
T/T
Supply Ability:
10000 pcs/month
Specifications
| Bore Size: | 13/16 Inch (20.64mm) | Net Weight: | 0.49 Kg |
| Material: | High-Strength Aluminium | Bore Finishing: | ≥2 Times Honing |
| Rubber Cup: | Japanese Imported EPDM (EP-35) | Piston Treatment: | Hard Anodized |
| High Light: | 13/16 Inch Bore Clutch Master Cylinder,High-Strength Aluminium Clutch Hydraulic System Component,Hard Anodized Piston Clutch Cylinder Assembly |
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Product Description
ISUZU Clutch Master Cylinder 8-97167404-0 8971674040 for NPR 100P 4HF1 — 13/16 Inch OEM Standard
Product Overview
The ISUZU Clutch Master Cylinder Assembly with OEM numbers 8-97167404-0 / 8971674040 is a precision-engineered replacement designed for ISUZU NPR and 100P series light-duty trucks, compatible with 4HF1 diesel engines. This component converts mechanical force from the clutch pedal into hydraulic pressure for smooth clutch engagement and disengagement.
Part Number Note: This product number is 8-97167404-0 / 8971674040. Cross-reference numbers include 8-97210-748-1 / 8972107481, 8980976940, 8-97102437-0, 8-97102021-0, and 8-97124109-0. Brands include IZUMI and BZLP. Please verify the specific number based on actual vehicle configuration.
Working Principle
The clutch master cylinder is mounted on the firewall and connected to the clutch pedal via a push rod. Its working principle includes:
- Mechanical Input: When the driver depresses the clutch pedal, the pedal pushes the piston inside the master cylinder
- Hydraulic Conversion: Piston movement converts mechanical force into hydraulic pressure, pushing brake fluid to the clutch slave cylinder
- Clutch Disengagement: Hydraulic pressure actuates the slave cylinder piston to separate the pressure plate from the clutch disc
- Return Process: When the pedal is released, the piston returns under spring force and the clutch re-engages
Failure Symptoms
Inspect immediately if any of these symptoms occur:
| Symptom | Probable Cause |
|---|---|
| Difficulty shifting gears, especially reverse or first gear | Worn internal seals; insufficient hydraulic pressure |
| Soft or spongy clutch pedal that fails to return | Sticking piston or air in hydraulic system |
| Visible brake fluid leakage at the master cylinder area | Worn/damaged cylinder seals |
| Incomplete clutch disengagement; gear grinding when shifting | Insufficient master cylinder travel |
| Clutch pedal floats to the floor; vehicle still tries to move when in gear | Complete master cylinder failure; total loss of hydraulic pressure |
Technical Specifications
Bore Size: 13/16 Inch (20.64mm)
Material: High-Strength Aluminium (hardness >110HB)
Piston Treatment: Hard Anodized
Bore Finishing: Minimum 2 times honing process
Rubber Cup: Japanese imported EPDM rubber (EP-35)
Surface Treatment: Electrophoresis coating
Net Weight: 0.49 kg
Brand Certification: IZUMI and BZLP (20 years experience)
Condition: Brand New - 100% quality inspected
Warranty: 3 months
Delivery Time: 15–20 days after deposit
Vehicle & Engine Compatibility
Primary Applications:
| Brand | Model | Compatible Engine | Years |
|---|---|---|---|
| ISUZU | NPR | 4HF1 | 1994– |
| ISUZU | 100P | 4HF1 | 1994– |
| ISUZU | ELF | 4HF1 | 1994– |
Extended Applications: NKR, NQR, NLR/NMR, NPS series with 4HF1, 4HG1, 4HK1, 4JJ1, and 4JB1 engines
Important Fitment Warnings
- Number Confirmation: Verify the specific number on the original part before ordering
- Left/Right-Hand Drive: Some sources indicate this product is for LHD (Left-Hand Drive) models
- Associated Components: Recommended to replace the slave cylinder simultaneously and bleed the hydraulic system
- Brake Fluid Replacement: Replace brake fluid (DOT 3 or DOT 4) when replacing the master cylinder
- Installation Torque: Refer to ISUZU factory workshop manual for proper torque specifications
- Professional Installation: Critical clutch system safety component - professional installation strongly recommended
Features & Benefits
13/16 Inch Precision Bore (20.64mm)
Provides precise hydraulic displacement for complete clutch disengagement and smooth shifting
Provides precise hydraulic displacement for complete clutch disengagement and smooth shifting
High-Strength Aluminium + Electrophoresis Coating
Lightweight with excellent corrosion resistance, reliable for heavy-duty applications
Lightweight with excellent corrosion resistance, reliable for heavy-duty applications
Hard Anodized Piston
High precision, excellent wear resistance and rust prevention extends service life
High precision, excellent wear resistance and rust prevention extends service life
≥2 Times Honing Bore Finishing
Smoother cylinder bore surface ensures seal longevity and hydraulic efficiency
Smoother cylinder bore surface ensures seal longevity and hydraulic efficiency
Japanese Imported EPDM Rubber Cup (EP-35)
Superior sealing performance and oil return characteristics for reliable operation
Superior sealing performance and oil return characteristics for reliable operation
100% Factory Quality Inspection
Every piece undergoes strict quality inspection and testing before delivery
Every piece undergoes strict quality inspection and testing before delivery
Packaging & Supply
Packaging: Neutral box / Color box / Custom brand packaging
Quantity per package: 1 pc/box
Product Net Weight: 0.49 kg
Brand: IZUMI / BZLP
Place of Origin: China
Minimum Order Quantity: Small quantities accepted
Target Customers: Truck parts wholesalers, repair shops, fleet purchasers, export traders
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