KONG Extreme Duty LSA/LS9 Solid Isolator Coupler

The Kong Performance Extreme Duty Solid Isolator is designed to replace the factory spring-loaded isolator used in LSA and LS9 superchargers. The original spring-loaded design is a known failure point over time. Upgrading to our precision-machined solid isolator permanently eliminates this issue, ensuring long-term reliability and performance. The Kong isolator is backed by a lifetime guarantee.

SMG ordering and fitment notes

This Kong Performance catalog item is supplied for the applications described above. Verify the exact vehicle, engine, supercharger, bolt pattern, finish, pulley ratio, and supporting hardware before ordering. Contact SMG before purchase when the combination is unusual or when the product requires machining, calibration, or another Kong component.

Processing and shipping

Processing occurs before shipping. Kong products may be special-order or vendor-fulfilled and can require additional handling time before carrier pickup. Expedited shipping changes transit time after shipment and does not shorten manufacturing, machining, or order processing. Any product-specific lead time or availability note above takes priority.

Installation responsibility

Performance components should be installed and calibrated by a qualified professional. The purchaser is responsible for verifying compatibility, safe operating limits, emissions legality, and suitability for the intended vehicle and use.