01
Real experience
We test before we recommend.
PRODUCT DESCRIPTION
Mounting kit for Bosch VAG alternator (alternator not included)
Provides significantly better support for additional onboard devices (additional fuel pumps, electric fans, car audio systems, etc.) and is essential for major engine modifications, ensuring stable and linear voltage under any load and RPM.
Tested on both stock engines and engines with over 500 hp.
Compatible Bosch alternators: 04801715AA / 021903026G / 06F903023C and similar models from 120 A to 180 A.
Note: Requires replacing the alternator bushings with those from the kit and enlarging the mounting holes to M10.
Kit includes:
Mounting kit with connectors
Installation manual
Compatible with all vehicles with 1JZ and 2JZ engines:
Toyota Altezza AS300 / Lexus IS300
Toyota Aristo / Lexus GS300
Toyota Crown / Crown Majesta
Toyota Mark II / Chaser / Cresta
Toyota Origin
Toyota Progres
Toyota Soarer / Lexus SC300
Toyota Supra
Note: The alternator is not included in the kit. Only the bracket is supplied. Ideal for Bosch alternator conversions on JZ engines.










WHY THETUNERLAB
We have spent years building cars, racing, and testing the exact same parts that we sell.
01
We test before we recommend.
02
We help you choose the right part.
03
Only trusted manufacturers.
04
Before and after the purchase.
+10 years
of passion for drifting
+30.000
available products
+5.000
satisfied customers
24/7
passion for motoring
Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
Yes. We ship orders to Spain and most European countries using specialized transport agencies.
You can contact our team via WhatsApp, email, or our website's contact form.
Shipping costs depend on the type of product, its weight, dimensions, and the destination country. In most cases, the amount is calculated automatically during the checkout process before the order is finalized.
For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.