This detailed product description presents the excellent quality, new 48V Starter-Generator unit (IBSG4W023) manufactured by Valeo, specifically designed to supply the starting, charging, and recuperation functions of modern hybrid vehicles. This component plays a critical role in the efficient operation of mild-hybrid (MHEV) systems, ensuring quick and reliable engine start-up as well as energy recovery.
The product is part of the Valeo portfolio and is identifiable by the part number IBSG4W023. This unit represents the latest technology in 48V systems, which is increasingly adopted by automakers to reduce emissions and increase fuel efficiency.
Main Manufacturer: the wiper blade is removed and connected to the wiper blade holder. Various adapters are used to make a precise connection between the wiper blade mount and the angle measuring device. Adapters are available for all wiper arm types. (Bosch
Product Category: Generators (Alternators)
Voltage Class: 48V
This starter-generator unit was primarily developed for premium category Land Rover models where 48V mild-hybrid technology is fundamentally important.
Compatible Vehicle Models:
Land Rover Range Rover Evoque (48V MHEV variants)
Land Rover Discovery Sport (48V MHEV variants)
For the sake of broad compatibility and easy identification, this unit corresponds to the following OEM and aftermarket part numbers. This list assists service centers in identifying the exact replacement part.
| Manufacturer | Part number | Note |
|---|---|---|
| VALEO | UD102345 | Factory Identifier |
| VALEO | 615000 | Factory Identifier |
| VALEO | 719265 | Factory Identifier |
| VALEO | IBSG4W023 | Product Identifier |
| VALEO | AEG9021NU | Factory Identifier |
| JAGUAR | J9C18054 | Factory Identifier |
| JAGUAR | J9C18054E | Factory Identifier |
| JAGUAR | J9C24876 | Factory Identifier |
| JAGUAR | K8D2-11A240-AB | Factory Identifier |
| LAND ROVER | K8D2-11A240-AC | Factory Identifier |
| LAND ROVER | K8D2-11A240-AD | Factory Identifier |
| LAND ROVER | LR115527 | Factory Identifier |
| LAND ROVER | LR137956 | Factory Identifier |
| AS-PL | J9C18054 | Aftermarket |
| AUTOELECTRO | CAS15H00GS | Aftermarket |
| CASCO | 5141072508 | Aftermarket |
| DRI | 24-0016 | Aftermarket |
| ELSTOCK | 21015H00 | Aftermarket |
| OVIT AB | AUTOMOTIVE 556391RIV | Aftermarket |
| KUHNER | LRC00016 | Aftermarket |
| LUCAS | LRC16 | Aftermarket |
| PSH | 457.501.250.500 | Aftermarket |
| REAL | 2027900HOE | Aftermarket |
| SANDO | 3015H00.1 | Aftermarket |
| STS | 17H000 | Aftermarket |
| SIOM | AL04589 | Aftermarket |
| TMI | N/A | Aftermarket |
The Valeo IBSG4W023 is an Integrated Belt Starter Generator (IBSG) unit, which combines the functions of a conventional alternator and starter motor in one compact, belt-driven unit. This technology is crucial in 48V MHEV systems as it enables engine shutdown (start-stop function) and immediate restart, as well as recovery of braking energy (regenerative braking).
Excellent Starting Performance: The IBSG ensures extremely fast and quiet engine starting, which significantly improves the user experience during start-stop cycles.
Energy Efficiency: The energy recovered during regenerative braking is fed into the 48V battery, thereby reducing the load on the main (12V) alternator and improving overall fuel consumption.
Higher Charging Capacity: Capable of efficiently charging the 48V system, which sustains the operation of the vehicle's electronics and the hybrid system.
Factory Quality (OEM): As a Valeo manufacturing part, it guarantees the precise fit and reliability required for Land Rover and Jaguar vehicles.
Integrated Solution: The compact design optimizes the space available in the engine bay while ensuring increased performance.
Since precise electrical parameters (e.g., nominal power, maximum current) are not included in the raw text, the focus is on the category and compatibility. IBSG units are generally capable of higher current output than traditional alternators, especially during the start-up phase.
System Voltage: 48 Volt (DC)
Technológia: Integrated Belt-Starter-Generator (IBSG)
Application: Mild-Hybrid (MHEV) systems
Drive: Belt Drive (Direct Belt Drive)
Manufacturer Accuracy: Replacement part matching original (OEM) specifications.
This component is a central element in the energy strategy of modern vehicles. 48V systems enable more efficient handling of higher electrical loads (e.g., turbochargers, active suspension, or primary starting/charging tasks), while the traditional 12V system continues to supply essential lighting and control units. The IBSG4W023 ensures that engine stop and restart remain almost imperceptible in the cabin while maximizing energy recovery.
It may also be important for workshops and technicians to know about similar, related Valeo 48V units, such as the IBSG4W026 Valeo New 48V, which also offers a reliable solution for 48V hybrid systems.
This Valeo IBSG4W023 starter-generator is the ideal choice for any specialist workshop professionally repairing Land Rover Evoque or Discovery Sport 48V hybrid models, guaranteeing original part quality and performance.
