










2000-2003 GMC Sonoma Chevy S-10 Brake Proportioning Regulator Valve 15768819 OEM
OEM Part Number15768819
Used OEM brake valve. Body, threads and line ports intact; inspected. Cleaned.
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This OEM brake proportioning regulator valve fits the 2000–2003 GMC Sonoma and 2000–2003 Chevrolet S-10 Pickup (MPN 15768819, interchange 539.GM8100). The body, threads, and line ports are intact; the unit has been inspected and cleaned.
From the shop
Brake proportioning valves regulate pressure to the rear brakes, preventing lock-up during hard stops. When one fails, you'll often see uneven braking, a soft pedal, or the ABS light staying on. This used OEM valve for 2000–2003 Chevrolet and GMC models—S-10 Pickup and Sonoma—has intact body, threads, and line ports; inspected and cleaned. Verify fitment with your specific year and model before ordering.
— Hubes
Vehicle fitment
Fits 2000–2003 GMC Sonoma; 2000–2003 Chevrolet S-10 Pickup. OEM part number 15768819.
| Years | Makes | Models |
|---|---|---|
| 2000–2003 | GMC | Sonoma |
| 2000–2003 | Chevrolet | S-10 Pickup |
Specifications
Part Identification
- OEM Part Number
-
15768819 - Brand
- GM
- Also Replaces
539.GM8100- Also Known As
- Proportioning Valve, Combination Valve, Brake Pressure Valve
Condition & Testing
- Condition
- Used
Specifications
- Material
- Aluminum, Steel
- Placement
- Front
- Driver Side
- Engine Compartment
- Dimensions
- 8.0" H × 10.0" L × 8.0" W · 16.0 oz





