Eibach Replacement Spring – 2025–2026 TOYOTA 4Runner (R40040)

Single Front Spring

Engineered with the same no-nonsense Eibach discipline we’d run on our own builds.

Part Number: R40040

Single replacement spring

Application: 2025–2026 TOYOTA 4Runner

Key details:

• Made to OE guidelines (IATF 16949)
• Zinc phosphating as pre-treatment and to prevent infiltration of corrosion
• Thorough static and dynamic durability testing
• Extensive partnership with car manufacturers and OEMs
• Development and production in the USA and Germany

iShock is a factory-authorized Eibach sales, service, and installation center—so your setup is backed by real product knowledge and suspension expertise.