Rear Brake Wheel Cylinder 8-97349705-0 8973497050 For ISUZU NPR NQR NRR N-Series 4HK1-T — OEM Verified Direct Fit, 1-3/16" Bore Cast Iron, Rear Left
| OEM Part Number: | 8-97349705-0 / 8973497050 | 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 |
| Position: | Rear Left (Driver Side) | Bore Diameter: | 30.16 Mm (1-3/16 In) |
| Material: | Cast Iron | Inlet Thread: | 2 × M10 × 1.0 |
| Bleeder Screw: | Hardened Zinc Dichromate, Trivalent Coating | Rubber Components: | EPDM Cups And Boots |
| Brake Fluid Compatibility: | DOT 3 / DOT 4 | Condition: | Brand New — 100% Pressure Tested |
| Warranty: | 12 Months | ||
| High Light: | ISUZU NPR rear brake wheel cylinder,OEM verified ISUZU N-Series wheel cylinder,cast iron rear left wheel cylinder |
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OEM Verified Direct fit replacement rear brake wheel cylinder for ISUZU NPR, NQR, NRR, and N-Series trucks equipped with 4HK1-T diesel engine (2003-2018). This critical hydraulic component converts pressure from the master cylinder into mechanical force to activate rear drum brakes.
- Bore Diameter: 30.16 mm (1-3/16 in) - precision-honed to OEM specification
- Material: Cast iron body with EPDM rubber cups and boots
- Thread Specification: M10 × 1.0 inlet thread (2 ports)
- Position: Rear Left (Driver Side)
- Quality: 100% pressure tested before packaging
- OEM Cross-Reference: 8-97349705-0, 8973497050, 8-97349-705-0, 97349705, 8-97349-705-1, 8973497051
- Brake fluid leak at wheel: Visible wetness around backing plate or inside brake drum
- Spongy or long-travel brake pedal: Pedal sinks further than normal with soft feel
- Uneven braking or vehicle pull: Vehicle pulls to one side during braking
- Brake fade or overheating drums: Extended stopping distances and hot brake drums
- Brake warning light illumination: Dashboard warning with abnormal brake behavior
| Brand | Model / Series | Engine | Years |
|---|---|---|---|
| ISUZU | NPR | 4HK1-T | 2003-2016 |
| ISUZU | NQR | 4HK1-T | 2003-2016 |
| ISUZU | NRR | 4HK1-T | 2003-2016 |
| ISUZU | N-Series | 4HK1-T | 2003-2018 |
| Chevrolet | W-Series | 4HK1-T | 2003-2017 |
| GMC | W-Series | 4HK1-T | 2003-2010 |
Ensures consistent hydraulic pressure and even brake shoe actuation
Provides structural rigidity and heat resistance under sustained braking loads
Superior resistance to heat, corrosion, and brake fluid degradation
Trivalent coating provides extra protection and durability
Each unit individually tested to ensure leak-free performance
Direct bolt-on replacement without modification required
| 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) |
| Rubber cup integrity | Visual and dimensional inspection (EPDM) |
| 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: Left side only, or left + right pair available
- Main markets: Middle East, Asia, Africa, South America, North America & Europe
- Related parts available: Rear right wheel cylinder, brake shoes, brake drums, repair kits
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