COMP Cams 4685-1 ID Valve Spring Locator 1.285" OD .532" ID .040" Thick

The COMP Cams 4685-1 is a single ID-style valve spring locator engineered to precisely center and retain valve springs in high-performance engine applications. Constructed from hardened steel alloy, this locator features an inboard locating shoulder that centers the spring seat and holds the spring securely in place — protecting the cylinder head and underlying shim from wear under extreme valvetrain loads.

Unlike traditional cup-style locators that require significant head machining to accommodate an outboard retaining shoulder, the 4685-1 uses an inside locating shoulder design that can typically be installed without machine work, making it a more convenient and cost-effective solution for performance builds.

Key Features:

• Material: Hardened steel alloy for durability under high-RPM, high-pressure conditions
• Locator OD: 1.285"
• Locator ID: 0.532"
• Thickness: 0.040"
• Spring ID: 0.880"
• Locating Style: Inboard (ID) shoulder — centers and retains the spring from the inside
• Sold individually (single locator)

COMP Cams valve spring locators are a proven upgrade over standard shims, which cannot withstand the extreme pressures and elevated RPM demands of modern performance and race engines. The 4685-1 provides reliable spring positioning while extending the service life of your cylinder head and valvetrain components.