BOSCH 0 820 403 004 / 0820403024 (NEW NO BOX) CONTROL VALVE
This is a brand new, genuine Bosch Control Valve, a critical component for the precise operation of your vehicle’s automatic transmission. This specific part, bearing the Bosch numbers 0 820 403 004 and 0820403024, is designed to meet the exact engineering specifications of your vehicle, ensuring optimal performance, fuel efficiency, and longevity.
Key Features & Benefits:
-
Genuine Bosch Quality:Â Manufactured to the highest industry standards, this control valve guarantees perfect fit, function, and reliability, just like the original part installed in your vehicle.
-
Precision Engineered:Â Ensures accurate and rapid control of hydraulic pressure within the transmission valve body, leading to smooth and timely gear shifts.
-
Improved Driving Experience:Â Replaces a worn or faulty valve to eliminate issues like harsh shifting, slipping, delayed engagement, or transmission error codes.
-
Durability & Reliability:Â Built with high-quality materials to withstand the demanding conditions inside a transmission, providing a long service life.
-
Maintains System Integrity:Â Helps protect the entire transmission system from the damaging effects of poor pressure control, potentially saving you from more costly repairs down the line.
Product Condition:
-
Brand New:Â This is a factory-fresh part, never used or installed.
-
No Original Box (NOB):Â The item is shipped securely but does not include the original Bosch retail packaging. The part itself is in perfect, unused condition.
Primary Function:
This solenoid control valve is an electro-hydraulic device that acts as a precise switch. It receives electrical signals from the Transmission Control Unit (TCU) and responds by opening or closing to direct transmission fluid (ATF) to specific hydraulic circuits. This action controls clutch packs and bands, which is what ultimately executes gear changes in an automatic transmission.
Common Symptoms of a Failing Control Valve:
If you are experiencing any of the following issues, this control valve may be the solution:
-
Rough, jarring, or sluggish gear shifts
-
Transmission slipping or flaring between gears
-
Delayed engagement when shifting from Park to Drive or Reverse
-
Illuminated Check Engine Light (CEL) or transmission warning light
-
Transmission error codes related to solenoid or pressure control
Compatibility & Fitment:
Please Note: This Bosch part number is a manufacturer’s original equipment (OE) number. Vehicle manufacturers often use their own part numbers. It is the customer’s responsibility to cross-reference this Bosch number (0 820 403 004) with their vehicle’s specific make, model, and year to confirm compatibility before purchasing. This part is commonly used in various European vehicles.
Package Includes:
-
1 x Genuine Bosch Control Valve (0 820 403 004 / 0820403024)















