Function and Form LEXUS SC430 Z40 (01-10) Type 4 Coilovers Kit

The Function & Form (F2) Lexus SC430 Z40 (2001-2010) Type 4 Coilovers Kit is a height-adjustable, inverted monotube coilover system engineered specifically for the Z40-chassis SC430. Built with a long-stroke design and an aggressively tuned damping circuit, this Type 4 kit is designed for enthusiasts who want sharper handling and a lower, more aggressive stance without sacrificing day-to-day drivability.

Key Features & Benefits

• Inverted monotube shock design with long stroke — adds extra wheel travel for a planted, controlled ride over a wider range of road conditions.
• 40mm inverted piston design — increases damper strength so the shock holds up during aggressive cornering and spirited driving.
• Large fluid valve assembly and oil chambers — supports consistent damping performance and helps manage heat during extended hard use.
• Independent ride height adjustment — dial in your drop without affecting spring preload, so you can fine-tune stance and corner balance separately from spring loading.
• 24-step damping adjustment — lets you tune the ride from comfort-oriented to track-firm to match your driving style.
• Spanner wrench included — makes ride height adjustments straightforward without hunting for extra tools.
• 2-year limited warranty — backed coverage for peace of mind on your suspension investment.

Specifications

• Shock Design: Inverted Monotube
• Damping: 24-Step Adjustable Spectrum
• Ride Height: Independently adjustable from spring preload
• Spring Rates: 15k (840 lbs) Front / 12k (672 lbs) Rear
• Warranty: 2-Year Limited
• SKU: 48300701

Fitment

This Type 4 kit is designed specifically for the Lexus SC430 Z40, model years 2001 through 2010. As with other kits in the F2 Type 4 lineup, this coilover system is built to order for the SC430's specific chassis rather than pulled as a generic universal kit, so confirm your exact model year when ordering.

What's in the Box

• F2 Function & Form Type 4 inverted monotube coilover struts (front and rear)
• Spanner wrench for ride height adjustment

Why Buy from ThreePiece.us

ThreePiece.us backs every F2 Function & Form coilover purchase with expert fitment support — our team can help confirm the correct Type 4 application for your SC430 Z40 before you order. Every order ships free, and you can spread out the cost of your suspension upgrade with 0% APR financing available through Affirm. If you have questions on install specifics, damping adjustment, or lead times, our team is a call or text away.

Frequently Asked Questions

• Does this kit fit all Lexus SC430 model years? Yes, this Type 4 kit is designed for the Z40-chassis Lexus SC430 across the full 2001-2010 production run.
• Is ride height adjustable without changing spring preload? Yes — the kit features independent ride height adjustment, so you can lower or raise the car without disturbing your spring preload setting.
• How many damping settings does this coilover have? It offers a 24-step damping adjustment spectrum, giving a wide range from comfort to firm track-oriented settings.
• Is a tool included for making adjustments? Yes, a spanner wrench is included to simplify ride height adjustments after installation.
• Is this kit built to order? F2 Type 4 kits are produced for specific chassis applications, so lead times can apply — contact our team for current availability on the SC430 Z40 application.