Brake Valve

2000-2003 GMC Sonoma Chevy S-10 Brake Proportioning Regulator Valve 15768819 OEM

OEM Part Number 15768819
by GM
$78.99
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Will this fit your vehicle? See the fitment table below to check.
PART CONDITION

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

Frequently asked questions

Will this Brake Proportioning Regulator Valve fit my 2000-2003 GMC Sonoma?
Yes — this is a direct-fit OEM replacement for the 2000-2003 GMC Sonoma and 2000-2003 Chevrolet S-10 Pickup. Message us your VIN if you want us to double-check compatibility before you buy.
Is this part tested?
Yes. Every part is inspected and tested for functionality where applicable before listing. Used condition with a 30-day money-back guarantee.
Is this OEM or aftermarket?
100% OEM. Never aftermarket. We only sell genuine factory parts.
What is the OEM part number?
The OEM part number is 15768819. Interchange/alternate numbers: 539.GM8100.
Can you verify fitment before I buy?
Absolutely — message us your VIN and we'll confirm this part fits your vehicle before you purchase.
What is your return policy?
30-day money-back guarantee on every order. Return shipping is free in the US and US territories. Buyers in Canada and the EU pay their own return shipping.
What is this Brake Proportioning Regulator Valve also called?
This Brake Proportioning Regulator Valve is also known as: Proportioning Valve, Combination Valve, Brake Pressure Valve. These are different names for the same part.
What other part numbers does this Brake Proportioning Regulator Valve fit?
This Brake Proportioning Regulator Valve is interchangeable with the following OEM part numbers: 539.GM8100. The primary OEM part number is 15768819.