Alternator Rectifier Lucas AS123 12V 115mm 6 Diode RCT4015
Vehicle Compatibility & OE Cross Reference
This Lucas AS123 style 12V alternator rectifier is designed for agricultural, industrial and 4x4 applications where the original rectifier matches the same 115 mm diameter, 6-diode layout and OE numbers listed below. It is commonly used on Case IH, Ford, JCB, Land Rover, Massey Ferguson, Renault and Rover applications.
OE Numbers by Brand
- Case IH: K262267
- Ford: E7NN-10304AA; E7NN10304AA
- JCB: 71410805
- Land Rover / Rover: BAU4920; BAU5266; BAU5813; RTC5045
- Massey Ferguson: 1897700M91; 3474648M91; 347468M91; 3477529M91
- Renault: 5430021884
- Cross reference (Mobiletron): RL-01H
- Other suppliers: RCT4015 and equivalent Lucas AS123 rectifier references
If your original rectifier carries any of these OE or comparison numbers and measures approximately 115 mm in outer diameter with 6 diodes, RCT4015 is a suitable replacement option for the matching Lucas AS123 alternator.
Specifications
- Reference: RCT4015
- Part type: Alternator rectifier
- Alternator family: Lucas AS123 type
- System voltage: 12V
- Outer diameter: 115 mm
- Number of diodes: 6
- Current capacity: from 35 A
- OE coverage: Case IH, Ford, JCB, Land Rover, Massey Ferguson, Renault, Rover (as per OE list)
- Comparison number: Mobiletron RL-01H
- Function: Rectifies alternator AC output to DC to charge the battery and supply the electrical system
Features
- Rectifier 12V 115 mm 6 diode design for Lucas AS123 style alternators
- From 35 A current rating for reliable charging on agricultural and industrial engines
- Wide OE cross reference covering Case IH, Ford, JCB, Land Rover, Massey Ferguson, Renault and Rover
- Direct replacement footprint to simplify alternator overhaul and in-field repairs
- Helps restore proper charging performance where the original rectifier has failed, shorted or gone open circuit
Why Buy From Us
- Local stock on key Lucas AS123 rectifiers like RCT4015 to minimise downtime
- Standard 12 month warranty under normal operating and installation conditions
- Fitment assistance using OE numbers, alternator labels and photos
- Secure online ordering with reliable nationwide courier delivery
- Trusted by workshops, farmers and fleet operators for durable charging system components
Installation & Maintenance Tips
- Disconnect the battery before removing the alternator or working on the rectifier.
- Confirm alternator model, OE number and rectifier diameter (115 mm) before fitting RCT4015.
- Inspect stator windings, slip rings and brushes for heat damage or short circuits when replacing a failed rectifier.
- Ensure all main power and earth connections are clean and tight to prevent voltage drop and repeat failures.
- After reassembly, bench test the alternator or check charging voltage on the vehicle to confirm correct operation.
- If you are unsure about alternator repairs, have the rectifier fitted and tested by a qualified auto electrician.
Original: $15.92
-70%$15.92
$4.78
Description
Vehicle Compatibility & OE Cross Reference
This Lucas AS123 style 12V alternator rectifier is designed for agricultural, industrial and 4x4 applications where the original rectifier matches the same 115 mm diameter, 6-diode layout and OE numbers listed below. It is commonly used on Case IH, Ford, JCB, Land Rover, Massey Ferguson, Renault and Rover applications.
OE Numbers by Brand
- Case IH: K262267
- Ford: E7NN-10304AA; E7NN10304AA
- JCB: 71410805
- Land Rover / Rover: BAU4920; BAU5266; BAU5813; RTC5045
- Massey Ferguson: 1897700M91; 3474648M91; 347468M91; 3477529M91
- Renault: 5430021884
- Cross reference (Mobiletron): RL-01H
- Other suppliers: RCT4015 and equivalent Lucas AS123 rectifier references
If your original rectifier carries any of these OE or comparison numbers and measures approximately 115 mm in outer diameter with 6 diodes, RCT4015 is a suitable replacement option for the matching Lucas AS123 alternator.
Specifications
- Reference: RCT4015
- Part type: Alternator rectifier
- Alternator family: Lucas AS123 type
- System voltage: 12V
- Outer diameter: 115 mm
- Number of diodes: 6
- Current capacity: from 35 A
- OE coverage: Case IH, Ford, JCB, Land Rover, Massey Ferguson, Renault, Rover (as per OE list)
- Comparison number: Mobiletron RL-01H
- Function: Rectifies alternator AC output to DC to charge the battery and supply the electrical system
Features
- Rectifier 12V 115 mm 6 diode design for Lucas AS123 style alternators
- From 35 A current rating for reliable charging on agricultural and industrial engines
- Wide OE cross reference covering Case IH, Ford, JCB, Land Rover, Massey Ferguson, Renault and Rover
- Direct replacement footprint to simplify alternator overhaul and in-field repairs
- Helps restore proper charging performance where the original rectifier has failed, shorted or gone open circuit
Why Buy From Us
- Local stock on key Lucas AS123 rectifiers like RCT4015 to minimise downtime
- Standard 12 month warranty under normal operating and installation conditions
- Fitment assistance using OE numbers, alternator labels and photos
- Secure online ordering with reliable nationwide courier delivery
- Trusted by workshops, farmers and fleet operators for durable charging system components
Installation & Maintenance Tips
- Disconnect the battery before removing the alternator or working on the rectifier.
- Confirm alternator model, OE number and rectifier diameter (115 mm) before fitting RCT4015.
- Inspect stator windings, slip rings and brushes for heat damage or short circuits when replacing a failed rectifier.
- Ensure all main power and earth connections are clean and tight to prevent voltage drop and repeat failures.
- After reassembly, bench test the alternator or check charging voltage on the vehicle to confirm correct operation.
- If you are unsure about alternator repairs, have the rectifier fitted and tested by a qualified auto electrician.
