8235-S4784070560 | Genuine OEM WABCO ABS Hydraulic Modulator Valve

The WABCO ABS Hydraulic Modulator Valve, part number 8235-S4784070560, is an anti-lock braking system component designed to regulate hydraulic brake pressure during ABS operation. It helps the braking system manage pressure at the wheels to support controlled braking and reduce the risk of wheel lockup. Verify the part number and brake system configuration before ordering.

PRODUCT INFORMATION

• Part Number: 8235-S4784070560

• WABCO Part Number: 4784070560

• Brand: WABCO

• Product Name: ABS Hydraulic Modulator Valve

• Component: ABS Brake Pressure Modulator

• System: Anti-Lock Braking System (ABS)

• Port Thread Specification: 7/16"-20 UNC

• Condition: Verify the actual item's condition before listing

APPLICATIONS

Part number 8235-S4784070560 is listed as a Mack cross-reference for WABCO modulator 4784070560. Supplier references also associate this modulator with selected Volvo, Mack, Freightliner, Kenworth, and Peterbilt applications.

Fitment depends on the vehicle's braking system and installed ABS configuration. Confirm the original part number, VIN, connector arrangement, and hydraulic port layout before purchase.

FUNCTION

The ABS hydraulic modulator controls brake pressure when the anti-lock braking system detects a wheel-lock condition. By helping adjust hydraulic pressure during braking, it supports wheel control and vehicle stability.

COMMON SIGNS OF ABS MODULATOR FAILURE

A faulty ABS hydraulic modulator may be associated with symptoms such as:

• ABS warning light remains illuminated

• ABS-related diagnostic trouble codes

• ABS operation becomes unavailable or intermittent

• Abnormal brake pressure control

• Unexpected ABS activation or reduced ABS performance

• Brake system warning messages

These symptoms can also result from wheel speed sensors, wiring, the ABS control unit, or other brake system faults. Professional diagnosis is recommended before replacing the modulator.

WHY REPLACE AN ABS HYDRAULIC MODULATOR?

Replacing a confirmed faulty ABS modulator helps restore proper brake pressure control during ABS operation. Using the correct replacement part supports the intended operation of the braking system and helps maintain vehicle safety.

FITMENT INFORMATION

Before ordering part 8235-S4784070560, verify:

• Original part number and WABCO number 4784070560

• Vehicle VIN, make, model, and model year

• ABS system configuration

• Electrical connector and hydraulic port arrangement

• Existing part markings and mounting dimensions

Related references include 6300-4784070560, S478-407-056-0, TDAS4784070560, and WAB4784070560. Cross-reference numbers do not guarantee interchangeability; confirm compatibility with a reliable parts catalog.

GENUINE WABCO PART

This listing identifies the component by its Mack reference number and WABCO part number. Verify the manufacturer's markings and actual item condition before describing it as new or genuine OEM inventory.