Eastern Oil Pump Relief Valve Spring A-26374-54 for Harley FL (1952–1961)

Precise 1-1/8 inch oil pump relief valve spring designed for Harley-Davidson FL motorcycles from 1952 through 1961. Made in the USA, this OEM cross-reference part (26374-54) ensures proper oil pressure regulation to support engine performance and longevity of your classic Harley’s lubrication system.

Designed for a reliable fit with vintage FL engines, this spring maintains consistent oil flow and helps prevent over-pressurization that can stress seals and bearings during operation or rebuild projects.

• Part number: A-26374-54 (OEM cross reference 26374-54)
• Model compatibility: Harley-Davidson FL (1952–1961)
• Overall length: approximately 1-1/8 inches
• Country of origin: Made in the USA

Ideal for restoration or routine maintenance, this spring supports the lubrication system in classic Harley engines by restoring the intended oil pump pressure dynamics.

For best results, consider pairing this component with the recommended accessory items list to support comprehensive maintenance during restorations or service intervals.

Spring for oil pump relief valve.

The Eastern Oil Pump Relief Valve Spring is a high-quality replacement part designed for vintage Harley Davidson FL models from 1952 through 1961. Crafted in the USA, this spring ensures proper pressure regulation within your oil pump, helping maintain optimal engine performance and longevity. Its precise fit and durable construction make it an essential component for restoring or maintaining your motorcycle's lubrication system. The spring measures approximately 1-1/8 inches in overall length, providing a reliable fit across various Harley FL models from the 1950s and early 1960s. Proper installation of this relief valve spring supports efficient oil flow, preventing over-pressurization that could lead to engine damage. Whether you're performing routine maintenance or rebuilding your engine, this OEM cross-referenced part offers a dependable solution to keep your Harley running smoothly. Compatibility with specific Harley Davidson FL models from 1952 to 1961 guarantees a straightforward installation, ensuring your motorcycle's oil pump functions as intended. For best results, consider pairing this part with accessory items such as the Sifton Oil Pump Check Valve Ball Re-Seater Tool, Oil Pump Snap Ring Installer, and Oil Pressure Sender Unit Wrench Tool, all included in the recommended accessory items list. Trust Eastern’s quality craftsmanship for your vintage Harley Davidson restoration or maintenance needs.

Features:

• Designed for Harley Davidson FL models from 1952 to 1961

• Made in the USA with durable materials

• Precise overall length of 1-1/8 inches for a reliable fit

• OEM cross reference: 26374-54 ensures compatibility

• Supports proper oil pressure regulation and engine performance

• Includes accessory items for comprehensive maintenance

Fitment:
Harley Davidson FL 1952
Harley Davidson FL 1953
Harley Davidson FL 1954
Harley Davidson FL 1955
Harley Davidson FL 1956
Harley Davidson FL 1957
Harley Davidson FL 1958
Harley Davidson FL 1959
Harley Davidson FL 1960
Harley Davidson FL 1961
Harley Davidson FL 1962
Harley Davidson FL 1963
Harley Davidson FL 1964
Harley Davidson FL 1965
Harley Davidson FL 1966
Harley Davidson FL 1967
Harley Davidson FL 1968
Harley Davidson FL 1969
Harley Davidson FL 1970
Harley Davidson FL 1971
Harley Davidson FL 1972
Harley Davidson FX 1971
Harley Davidson FX 1972