Automotive replacement part designed to restore alternator voltage control and charging reliability. Drivers who need dependable, vehicle-specific replacements can regain consistent starting and battery health. Is the Bosch F00MA45300 El Transistor Regulator the right direct-fit option for your Volkswagen?
⚡ At a Glance
- • Voltage Regulation: Controls alternator field current to keep output within target range
- • Best for: Owners needing a direct replacement for vehicle-specific alternator regulators
- • Not ideal for: Users seeking universal fit parts or performance upgrades beyond OEM specification
OEM-equivalent field regulator supplied as a replacement part for vehicle-specific applications. Matches original part number F00MA45300 and an OEM Volkswagen reference for confident selection.
Reliable charging under load - with premium EL transistor design
EL transistor field regulation modulates the alternator's field current to maintain stable output as engine speed and electrical load vary. The premium EL field regulator designation indicates the specific electronic transistor control used in the assembly parts listed.
Steadier battery charge and reduced likelihood of charging-related faults, as reported by users whose vehicles regained normal functionality after fitment.
Direct-fit replacement - with OEM-equivalent part number reference
Original part number F00MA45300 and the listed OEM equivalent VOLKSWAGEN 06F903803B align with manufacturer mounting points and connector arrangements. Vehicle-specific design reduces the need for modifications during installation.
Quick swap into compatible vehicles, helping to cut workshop time and get the vehicle back on the road without extra parts.
Fast availability and support - with Prime delivery and straightforward returns
User reviews note next-day delivery via Prime and an easy returns process with prompt refunds for eligible orders. The listing is sold under assembly parts classification and is positioned as a replacement component.
Reduced downtime thanks to fast shipping, and reassurance from simple returns if the part does not match the vehicle.
✨ The 4 Key Reasons for Bosch F00MA45300 El Transistor Regulator
- Premium EL transistor construction - Durable and resilient under continuous alternator load conditions
- Vehicle-specific fit - Keeps connectors and mounting identical for simple swap
- Verified fit reports - Customer feedback shows restored vehicle functionality after installation
- Prime-ready shipping - Fast delivery and hassle-free returns for replacement parts
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Brand: Bosch
- Part Number: F00MA45300
- Manufacturer Product Name: El Transistor Regulator
- Type: Premium EL Field Regulator
❓ Frequently Asked Questions
Q: Will this regulator fit my vehicle?
A: Compatibility is vehicle-specific, and the listing references original part number F00MA45300 and OEM equivalent VOLKSWAGEN 06F903803B for matching. Use those numbers to confirm fit with the vehicle.
Q: Is this an original Bosch part or an equivalent?
A: The listing is branded Bosch and described as a premium EL field regulator, with the original part number F00MA45300 and an OEM-equivalent Volkswagen reference, indicating an OEM-equivalent replacement.
Q: What do customers say about delivery and returns?
A: User reviews report fast next-day delivery via Prime and easy returns with prompt refunds, making ordering and returns straightforward.
🏆 Our Verdict
Suitable for vehicle owners who need a direct replacement regulator, especially for Volkswagen applications that match the listed reference numbers. The combination of premium EL transistor regulation and OEM-equivalent references makes it a practical choice for restoring charging behaviour. Given reported fast delivery and simple returns, the regulator represents sensible long-term value for compatible repair jobs.
