# Bikers Choice 79-84 FL 79-83 FX 80-85 FLT 80-81 XL Rear Master Cylinder Rbld Kt 3/4in H-D 42374-77B

Renew your brake performance with Biker's Choice direct OE replacement rear master cylinder rebuild kit. Kit includes the inner workings necessary to rebuild your rear master cylinde.

-   Direct fit replacement for worn or leaking master cylinders
-   Restores smooth, reliable rear brake performance
-   Includes seals, springs, and internal components
-   Replaces OEM# 42374-77B

This Part Fits:

Year

Make

Model

Submodel

1979-1984

Harley-Davidson

FLH Electra Glide

Base

1979-1981

Harley-Davidson

FLHC Electra Glide Classic

Base

1980-1984

Harley-Davidson

FLHS Electra Glide Sport

Base

1983-1984

Harley-Davidson

FLHTC Electra Glide Classic

Base

1980-1983

Harley-Davidson

FLT Tour Glide

Base

1981-1986

Harley-Davidson

FLTC Tour Glide Classic

Base

1980-1982

Harley-Davidson

FXB Sturgis

Base

1979-1982

Harley-Davidson

FXE Super Glide

Base

1979-1982

Harley-Davidson

FXEF Fat Bob

Base

1979-1982

Harley-Davidson

FXS Low Rider

Base

1980-1982

Harley-Davidson

FXWG Wide Glide

Base

1980-1981

Harley-Davidson

XLH1000

Base

1980-1981

Harley-Davidson

XLS Roadster

Base

## Details

- **Price:** 34.49 CAD
- **Vendor:** Bikers Choice
- **Type:** Brake Master Cylinder

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 34.49 CAD | In stock |

## Images

- Photo - Primary

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/bikers-choice-79-84-fl-79-83-fx-80-85-flt-80-81-xl-rear-master-cylinder-rbld-kt-3-4in-h-d-42374-77b)
> Updated: 2026-06-26