V-Twin 13152S Wagner Rear Drum Master Cylinder for Harley FL

Replica Wagner-style rear drum brake master cylinder built for vintage Harley-Davidson FL models. The cast iron body is finished in silver with a chrome top, delivering a faithful look and robust durability for 1958–1967 FLs.

• Bore: 3/4 inch
• Internal construction: cast iron for lasting hydraulic performance
• Fluid compatibility: DOT 5 brake fluid
• OEM cross reference: 41761-58
• Compatibility: Harley-Davidson FL series (1958–1967 as primary spec); also listed for FL 1968–1972 and FX 1971–1972
• Installation: requires inverted flare brake fitting and a steel brake line (not included)
• Origin: assembled in Taiwan

This is a Wagner Lockheed replacement—not an original Wagner component—but it preserves the same fit and function for restoring or upgrading a rear drum-brake system. For installation guidance, refer to the detailed instructions available online at here.

Replica Wagner style rear master cylinder for drum brake. The cast iron body is painted silver with a chrome top.

The V-Twin Part Number 13152S is a high-quality replica Wagner rear drum brake master cylinder designed specifically for Harley Davidson FL models from 1958 through 1967. Crafted with a 3/4 inch bore, this master cylinder provides reliable hydraulic pressure essential for optimal brake performance. Constructed from durable cast iron internally, it ensures longevity and consistent operation under demanding riding conditions. The master cylinder is compatible with DOT 5 brake fluid, offering superior lubrication and corrosion resistance. Please note that this is a Wagner Lockheed replacement, not an original Wagner component, but it maintains the same fit and function. The unit requires an inverted flare brake fitting and a steel brake line for proper installation, which are not included but are available separately. This product is assembled in Taiwan, adhering to quality standards and offering dependable performance for vintage Harley Davidson models. For installation guidance, refer to the detailed instructions available online at here. This master cylinder is compatible with OEM part number 41761-58 and pairs well with related accessory items such as rear drum and disc brake master cylinders to complete your braking system upgrade or restoration. Whether restoring a classic Harley or replacing a worn-out component, this master cylinder provides a reliable solution to maintain safe and effective braking performance on your vintage motorcycle.

Features:

• Bore Diameter: 3/4 inch for effective hydraulic pressure

• Material: Cast iron internal construction for durability

• Fluid Compatibility: Suitable for DOT 5 brake fluid

• Compatibility: Fits Harley Davidson FL models from 1958 to 1967

• Installation Note: Requires inverted flare brake fitting and steel brake line

• Country of Origin: Taiwan for quality assurance

• OEM Cross Reference: 41761-58

Fitment:
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