High-output LS1-compatible Bosch 12V 140-amp alternator paired with CWC’s precision-machined RB twin-cam billet conversion kit in black—designed for seamless integration on Nissan RB20, RB25, RB26, and RB30 engines.

Description

This kit allows for a direct fitment of the Bosch 12V 140 Amp LS1 Alternator to your RB Twin Cam engine. Direct fitment, no modification is required for this Alternator other than the pulley swapover. 

The kit comes with a new Genuine Bosch 12V 140 Amp Alternator, including a custom Billet 6061 Top and Bottom mounting bracket, custom pulley, and anodised hardware. 

Note: The new CWC pulley fits tightly and must be swapped with the pulley supplied on the new alternator. Do not hit or force it on when installing. If it does not fit easily, warm up the pulley with a heat gun or hair dryer to allow it to slide on correctly. 

Engine Compatibility:

– Nissan RB20 / RB25 / RB26 / RB30 (Twin Cam)

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