Top view of NEW Wheel Cylinder FD682 (1 3/4" bore), showing mounting flange and 1/2-inch inlet port

Side view of Wheel Cylinder FD682, focusing on the mounting flange and bolt hole pattern for secure axle attachment.

Bottom view of Wheel Cylinder FD682, clearly showing casting numbers 563 and 618331 for verification.

Side view of Wheel Cylinder FD682, highlighting the accessible bleeder screw location for brake maintenance.

NEW Wheel Cylinder (1 3/4-inch Bore) – Replaces FD682 / 682 / 563

Name: NEW Wheel Cylinder (1 3/4-inch Bore) – Replaces FD682 / 682 / 563
Brand: abc dynamics
SKU: W101255
Availability: InStock

$75.00

Fitment Lookup:

Select your vehicle to verify compatibility before ordering.

SKU: W101255 Categories: VIEW ALL PRODUCTS, Wheel Cylinders Brand: abc dynamics

NEW Wheel Cylinder (**1 3/4-inch Bore**) – Replaces FD682 / 682 / 563

ABC Dynamics: Precision Parts for Uncompromising Performance.

Restore critical stopping power with this brand new **Wheel Cylinder** from **ABC Dynamics**. Engineered with a robust **1 3/4-inch bore size** for reliable hydraulic force, this unit is an essential direct replacement for heavy-duty braking systems in both classic **commercial automotive trucks** and general **industrial equipment**. Trust in quality that meets or exceeds OEM specifications for casting numbers like **FD682** and **682**.

Key Specifications & Expert Features

Condition: **NEW** Wheel Cylinder (Non-Remanufactured) for maximum safety and lifespan.
Bore Size: **1 3/4-inch bore size** (Critical for generating sufficient braking force in heavy-duty axles).
Inlet Size: **1/2″** thread size (Standard hydraulic line inlet connection).
**Application Balance:** Perfect for vintage heavy-duty models like **International Cargostar** and various **industrial drum brake setups**.

Verified Casting & Part Numbers

This wheel cylinder is a confirmed replacement for the following casting and part numbers. Matching your existing number to the list below ensures you get the right part every time:

FD682, 682
563
618331

Specific Vehicle Applications

This unit is commonly fitted to the following commercial vehicles and may fit other industrial axle types:

1961 Diamond Reo C578
1961–1968 International Cargostar CO190, COF190, VF190
1963–1968 International R190, RF190, V190, VCO190, VCOF190

Expert Note: Braking System Integrity

Experience Tip: Wheel cylinders are often victims of contaminated or old brake fluid. Always replace both left and right cylinders on an axle and bleed the entire system with clean fluid to ensure balanced, safe braking performance.

⚠️ Please Read Before Purchasing:

This wheel cylinder requires a **1 3/4-inch bore size** and a **1/2″ inlet** thread size.
Braking components are safety-critical. Verify your vehicle’s specifications before purchasing.

ABC Dynamics Part Number / SKU: **W101255**