Rear Brake Wheel Cylinder 8-97349706-0 8973497060 For ISUZU NPR NQR NRR N-Series 4HK1-T — OEM Verified Direct Fit, 1-3/16" Bore Cast Iron, Rear Right
| OEM Part Number: | 8-97349706-0 / 8973497060 | Part Name: | Rear Brake Wheel Cylinder (Drum Brake) |
| Engine Compatibility: | ISUZU 4HK1-T (5.2L Turbo Diesel) | Vehicle Models: | ISUZU NPR, NQR, NRR, N-Series, NMR85; Chevrolet/GMC W-Series (W3500, W4500) |
| Position: | Rear Right (Passenger Side) | Bore Diameter: | 30.16 Mm (1-3/16 In) |
| Material: | Cast Iron | Inlet Thread: | 2 × M10 × 1.0 |
| Internal Thread: | 9 Mm | Fitted Diameter: | 34 Mm |
| Weight: | 1.319–1.584 Kg (varies By Manufacturer) | Condition: | Brand New — 100% Pressure Tested |
| Warranty: | 12 Months | Bleeder Screw: | Hardened Zinc Dichromate, Trivalent Coating (some Configurations Supplied Without Bleeder Screw) |
| Rubber Components: | EPDM Cups And Boots | Brake Fluid Compatibility: | DOT 3 / DOT 4 |
| High Light: | ISUZU NPR rear brake wheel cylinder,OEM verified ISUZU N-Series brake cylinder,cast iron rear right wheel cylinder |
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OEM Verified Direct Fit, 1-3/16" Bore Cast Iron, Rear Right wheel cylinder designed for ISUZU NPR, NQR, NRR, and N-Series trucks with 4HK1-T diesel engine (2003-2018). This critical hydraulic component converts brake fluid pressure into mechanical force to activate rear drum brakes.
- Bore Diameter: 30.16 mm (1-3/16 in)
- Material: Cast Iron with EPDM rubber components
- Thread Specification: M10 × 1.0 inlet threads (2 ports)
- Position: Rear Right (Passenger Side)
- Condition: 100% Brand New
Replaces OEM numbers: 8-97349706-0, 8973497060, 8-97349-706-0, 97349706
| Brand | Model / Series | Engine | Years |
|---|---|---|---|
| ISUZU | NPR, NQR, NRR, N-Series | 4HK1-T | 2003-2018 |
| Chevrolet | W-Series (W3500, W4500) | 4HK1-T | 2003-2010 |
| GMC | W-Series | 4HK1-T | 2003-2010 |
- This is the rear right (passenger side) wheel cylinder
- Rear left counterpart uses OEM 8-97349705-0
- Replace in axle pairs for balanced braking performance
- Confirm engine variant is 4HK1-T (turbocharged)
Ensures consistent hydraulic pressure and even brake shoe actuation
Provides structural rigidity and heat resistance under braking loads
Superior resistance to heat, corrosion, and brake fluid degradation
Each unit individually tested for leak-free performance
Direct bolt-on replacement without modification required
Works with standard brake fluid specifications
When to Replace:
- Brake fluid leak at wheel
- Spongy or long-travel brake pedal
- Uneven braking or vehicle pull
- Brake fade or overheating drums
- Brake warning light illumination
Maintenance Schedule:
- Inspect wheel cylinders every 40,000-50,000 km
- Replace wheel cylinders in axle pairs
- Flush brake fluid every 2 years
- Inspect backing plate for fluid leaks during oil changes
| QC Item | Verification Method |
|---|---|
| Bore diameter / roundness | Precision bore gauge inspection (30.16 mm) |
| Piston fitment | Go/no-go gauge verification |
| Housing material | Spectrometer analysis (cast iron composition) |
| Pressure integrity | 100% hydrostatic pressure test |
| Thread specification | Thread gauge inspection (M10 × 1.0) |
- Standard Packing: Individual box with protective packaging
- Package Contents: 1 × Rear Brake Wheel Cylinder
- Set Options: Right side only, or left + right pair available
- Main Markets: Middle East, Asia, Africa, South America, North America & Europe
- Related Parts: Rear left wheel cylinder, brake shoes, drums, and hardware kits available
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