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Part Brand: Ferrea

Part Number: KT4054

Vehicle Fitment

Honda Civic Si (2006–2011)
Honda Civic Type R (2002–2005)
Acura RSX Type-S (2002–2006)
Acura TSX (2004–2008)
Acura ILX (2013–2015)

Kit Components

16x Dual Valve Springs (#S10164)
16x Titanium Retainers (#E20062)
16x Seat Locators (#SL1149)
16x Valve Locks (#K10034)

Features

Designed for high-performance applications up to 9,000 RPM
Dual spring configuration for enhanced valve control
Constructed from premium-grade materials for durability
Heat-treated and stress-relieved to withstand extreme racing conditions
Compatible with Ferrea titanium retainers and valve locks
Ideal for both naturally aspirated and forced induction setups

Specifications

Material: Titanium retainers, chrome silicon steel springs
Design: Dual spring configuration
Quantity: 16 springs, 16 retainers, 16 seat locators, 16 valve locks
Maximum Lift: Approximately 0.600" (15.24 mm)
Maximum RPM: Approximately 9,000

Installation Notes

Ensure proper installation to maintain valvetrain integrity
Compatible with Ferrea titanium retainers and valve locks

Product Description

The Ferrea KT4054 Dual Valve Spring Kit is engineered for high-performance applications in Honda and Acura K-series engines, including the K20 and K24Z3/Z7 variants. This comprehensive kit includes 16 dual valve springs (#S10164), 16 titanium retainers (#E20062), 16 seat locators (#SL1149), and 16 valve locks (#K10034), providing all necessary components for a complete valvetrain upgrade.

Constructed from premium-grade materials, these valve springs are heat-treated and stress-relieved to withstand extreme racing conditions. The dual spring configuration effectively reduces valvetrain harmonics and minimizes load loss, making it ideal for both naturally aspirated and forced induction applications up to 9,000 RPM.

Designed to control harmonics and reduce valvetrain component wear, the KT4054 kit ensures enhanced durability and performance. Compatible with Ferrea titanium retainers and valve locks, this kit offers a reliable solution for enthusiasts seeking to maximize their engine's potential.

*Parts are for USA spec vehicles, please contact us to verify fitment on JDM & international models.

· · · SHIPPING · · ·

Free shipping across the contiguous 48 United States (excludes Hawaii and Alaska). Item(s) ships on the same day or within 1 business day. Delivery time is within 2 to 4 business days excluding next day deliveries. Orders over $750 require signature for delivery.
Canada customers - If eBay does not collect import & duty fees during checkout, the shipping carrier will collect them prior to delivery.

· · · RETURNS · · ·

Your complete shopping satisfaction is our #1 priority. If an item you ordered from us does not meet your expectations, please contact us within 30 days of receiving the item(s). If your order arrives damaged from shipping please contact us and we will provide a prepaid return label to send back for a replacement or refund.
Returned items must be in the original packaging (including plastic wrapped items) and in brand new condition.
Any returns received installed, mounted, used or missing components will be subject to return fee's.

· · · PAYMENTS · · ·

We accept all payment methods through eBay's payment system
PayPal, and all major credit cards/debit cards are accepted.

· · · FEEDBACK · · ·

Customer satisfaction is a top priority for us. If you have any issues with your order, please let us know. We will make every effort to resolve any problems and ensure you are satisfied.

· · · CONTACT US · · ·

We appreciate your business. If you have any questions, please message us through eBay and we will respond within 24 hours on weekdays. Feel free to browse our eBay store for other available items. Thank you again for choosing to shop with us!