Rear Brake Wheel Cylinder 8-97332225-0 8973322250 8-97139854-0 for ISUZU NPR N-Series 4HG1 4.6L Diesel — OEM 1-5/16" Rear Drum Brake Cylinder
| OEM Part Number: | 8-97332225-0 / 8973322250 / 8-97139854-0 / 8971398540 | Part Name: | Rear Brake Wheel Cylinder / Drum Brake Wheel Cylinder |
| Fitting Position: | Rear Right Forward | Bore Diameter: | 1-5/16" (33.3mm / 1.313 In) |
| Material: | High-Grade Cast Iron With EPDM Rubber Cups And Boots | Bleeder Screw: | Included |
| Vehicle Compatibility: | ISUZU NPR (1991-1993), N-Series | Engine Compatibility: | ISUZU 4HG1 4.6L Diesel |
| Condition: | Brand New — 100% Quality Inspected | Warranty: | 12 Months |
| High Light: | ISUZU NPR rear brake cylinder,OEM drum brake cylinder 1-5/16,4HG1 diesel truck brake parts |
||
The Rear Brake Wheel Cylinder with OEM numbers 8-97332225-0 (also listed as 8973322250) and 8-97139854-0 (also listed as 8971398540) is a verified direct-fit replacement for ISUZU NPR and compatible N-Series trucks equipped with the 4HG1 diesel engine.
If your rear brake wheel cylinder is failing, you may experience one or more of the following symptoms:
- Brake Fluid Leakage: Visible fluid seeping from the rear 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, causing reduced friction
| Brand | Model | Chassis / Series | Engine | Years |
|---|---|---|---|---|
| ISUZU | NPR | N-Series | 4HG1 4.6L Diesel | 1991-1993 |
| ISUZU | NPR | N-Series | 4HG1 4.6L Diesel | 1994-2003 |
| Chevrolet | W4500 Tiltmaster | -- | -- | 1991-1993 |
| GMC | W4500 Forward | -- | -- | 1992-1993 |
| Feature | Benefit + Verification Signal |
|---|---|
| OEM Specification | Guarantees factory-fit quality and performance |
| Precision 1-5/16" (33.3mm) Bore | Delivers consistent hydraulic pressure for reliable braking |
| EPDM Rubber Cups and Boots | Superior resistance to heat, corrosion, and brake fluid |
| Bleeder Screw Included | Complete replacement solution |
| Direct Bolt-On Fitment | No modifications required |
| 100% Pressure Tested | Guarantees dependable operation and leak-free performance |
| 100% New - No Core Charge | Zero wear, immediate braking performance |
| QC Item | Verification Method |
|---|---|
| Dimensional Accuracy | Precision inspection to verify 1-5/16" bore diameter and mounting specifications |
| Material Composition | Cast iron analysis to verify structural integrity |
| Bore Surface Test | 100% surface testing for optimum sealing surface |
| Leakage Test | 100% hydraulic pressure test for zero fluid leakage |
| Rubber Component Test | EPDM material verification for heat and corrosion resistance |
| Durability Cycle Test | 500+ hour fatigue testing for long-term reliability |
| Final Assembly Inspection | 100% visual and functional inspection before packaging |
Replacing brake wheel cylinders is a critical safety procedure. It is strongly recommended to replace them in pairs.
Pre-Installation Checklist:
- Safely raise the vehicle and support it on jack stands
- Remove the rear wheels and brake drums
- CRITICAL: This is the Rear Right Forward cylinder
- Inspect brake shoes, drums, and hardware for wear
- Use new brake fluid (DOT 3 or DOT 4) from a sealed container
- Critical: Replace wheel cylinders in pairs for balanced braking
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: Each brake wheel cylinder is securely packed in protective packaging
- Package Contents: 1 Drum Brake Wheel Cylinder (Bleeder screw included)
- Suitable for: Wholesale distributors, truck parts retailers, commercial vehicle repair shops, and fleet owners
Oil Power Steering Pump Assembly for ISUZU NPR 4HF1 8971365740 8971151350 8-97136574-0 8-97115135-0
Oil Power Steering Pump Assembly for ISUZU NPR 4HF1 8971365740 8971151350 8-97136574-0 8-97115135-0 Part Number: 8971365740 8971151350 8-97136574-0 8-97115135-0 Product Name: Oil Power Steering Pump Car Model: ISUZU NPR Engine Model: ISUZU 4HF1 Condition: 100% Brand New Size: Standard Weight: ...
Clutch Disc for ISUZU NPR 4BD1 8-97083723-0 8970837230
Clutch Disc for ISUZU NPR 4BD1 8-97083723-0 8970837230 Part Number: 8-97083723-0 8970837230 Product Name: Clutch Disc Car Model: ISUZU NPR Engine Model: ISUZU 4BD1 Condition: 100% Brand New Size: Standard Weight: Standard Origin: China Mainland Main Market: Middle East ,Asia,Africa, South America, ...
Rear Final Drive Assembly for ISUZU NKR55 8943389020 8-94338902-0
Rear Final Drive Assembly for ISUZU NKR55 8943389020 8-94338902-0 Part Number: 8943389020 8-94338902-0 Product Name: Rear Final Drive Assembly Car Model: ISUZU NKR55 Engine Model: ISUZU NKR55 Condition: 100% Brand New Size: Standard Weight: Standard Origin: China Mainland Main Market: Middle East ...
Turbocharger Assembly for ISUZU XE 6HK1 1-14400390-0 1144003900
Turbocharger Assembly for ISUZU XE 6HK1 1-14400390-0 1144003900 Part Number: 1-14400390-0 1144003900 Product Name: Turbocharger Assembly Car Model: ISUZU XE Engine Model: ISUZU 6HK1 Condition: 100% Brand New Size: Standard Weight: Standard Origin: China Mainland Main Market: Middle East ,Asia,Africa...
