You are completely right—thank you for catching that! Part number 44510-47050 belongs to the second-generation (Gen 2) Toyota Prius, covering model years 2004–2009.
Here is the fully revised and corrected eBay description matching your exact part number and the correct vehicle generation.
Used
This is a genuine factory-original Toyota ABS anti-lock brake pump and electronic control actuator assembly. It has been carefully removed from a donor vehicle, thoroughly inspected, and verified to be in good operational working order. The internal high-pressure electric pump motor builds pressure efficiently, the accumulator holds pressure securely without internal bleed-down leakage, and the electronic control module pathways communicate cleanly with the main vehicle network. The brake line threaded ports are intact and free of cross-threading, and the primary multi-pin electrical harness terminal block is clean, dry, and free of moisture corrosion or bent pins. As a pre-owned chassis component exposed to regular service conditions, typical cosmetic surface wear, minor aluminum oxidation spots on the valve body block, or light superficial scuffs on the plastic module housing will be present, but nothing that impacts hydraulic sealing or performance.
Brand: Toyota Genuine OEM
Part Number: 44510-47050 (Interchanges with matching Toyota production lineage numbers: 44510-47051, 44500-47090, 44500-47140, 44500-47141)
Type: ABS Anti-Lock Brake Pump / Hydraulic Brake Booster Actuator Assembly
Placement on Vehicle: Front Engine Bay Compartment, Driver Side Firewall Area (Underneath the inverter assembly)
Compatible Vehicles: 2004-2009 Toyota Prius (2nd Generation Hybrid Liftback models)
Fitment Type: Direct Replacement
Up for sale is a genuine factory-original Toyota engine bay ABS anti-lock brake pump and hydraulic control actuator assembly, specifically tracking production part number 44510-47050. Positioned inside the driver-side rear engine bay compartment mounted near the firewall, this critical multi-stage braking component serves as the core safety gateway for your hybrid vehicle—managing high-pressure hydraulic fluid distribution, emergency anti-lock braking (ABS) pulsing routines, electronic stability control adjustments, and the seamless handoff between traditional friction braking and regenerative electric motor braking.
Second-generation Toyota Prius brake actuators are a very high-demand failure item as vehicles rack up mileage. Over extended service cycles, the internal hydraulic valves can form microscopic internal leaks, or the electric pump motor brushes or accumulator seals degrade from running continuously to compensate for lost pressure. Common hardware failure indicators on the 2004–2009 Prius platform include an annoying buzzing, barking, or purring sound coming from behind the dashboard every few seconds, a permanently stiff or spongy brake pedal feel, an audible brake system warning buzzer sound inside the cabin, and multiple cluster warning flags (ABS light, BRAKE light, and VSC stability control warning indicators) triggered alongside diagnostic trouble codes such as C1391 (Abnormal Leak of ACC Pressure), C1252, or C1256. Replacing your compromised assembly with this dry, verified factory OEM unit safely restores firm, predictable braking response, proper pressure retention metrics, and factory network communications without the premium cost associated with franchise dealer parts counters.
Crucial Installation & Bleeding Notice: This is a highly advanced electronically controlled hybrid braking component that handles extreme hydraulic pressures. This unit is not immediate plug-and-play and requires professional mechanical installation. Following physical assembly, a specialized electronic hydraulic brake bleeding procedure is strictly required. This process cannot be performed manually by pumping the pedal; it must be carried out using a high-level diagnostic scan tool interface (such as Toyota Techstream software) to sequentially cycle the internal actuator solenoids and clear air locks out of the high-pressure accumulator loop. Please verify your original unit's part number reads 44510-47050 or matches active Toyota interchanges prior to purchase.
Included in this listing:
(1) OEM Toyota Prius ABS Brake Actuator Pump Assembly (Part # 44510-47050)
Handling Time: Ships within 2 Business Days of cleared payment.
Carrier: Shipped via FedEx Ground or UPS Ground (heavy package protocols apply) with tracking automatically uploaded.
Packaging: Due to the high weight, residual internal brake fluid threat, and delicate electronic components of this unit, it is carefully drained, sealed with port plugs, wrapped in several layers of thick anti-static bubble wrap, and deeply nested inside a heavy-duty, double-walled corrugated box packed with custom-molded shock-absorbing padding blocks. This dense buffer layout completely protects the aluminum threaded line ports, internal electrical connector blocks, and mounting bracket feet from any shipping friction, transit shocks, or structural shifting forces.
Thank you for your business! Please confirm that your original factory brake actuator part numbers or stamping profiles line up exactly with our listing details and high-resolution photos before completing checkout. If you would like us to cross-reference your vehicle's build parameters against your 17-digit VIN, please drop us a quick message and we will gladly check it for you.