Description
18006974X – DELCO HY-POWER LEAD WIRE STYLE HYDRAULIC BRAKE BOOSTER MOTOR
PART NUMBER(S):
Fleet Products: 18006974X (Remanufactured) | OE: Delco 18001812, 18007368 , 18006974, 18015776, 18019639 , Navistar 504839C91, 1653762C92, 1663064C91, 1675774C91
DESCRIPTION:
Model: Lead Wire Style Hydraulic Brake Booster Motor & Pump Assembly – Remanufactured
Vehicles: GM TopKick & Kodiak (C5000–C7500, B7, P6000–P6500, P40, P60, 1980s–1990s); International Harvester medium-duty trucks; Blue Bird and Thomas Built buses with Delco Hy-Power / Hydroboost systems
• Motor and pump assembly (hydraulic booster support)
• Single lead wire (1-wire connection) Pump & Motor w/pigtail wire connection
• 12V DC operation
• Provides brake assist when engine-driven supply is insufficient
• Compatible with DOT 3 / DOT 4 systems
• Fits Delco Hy-Power and Haldex Hydroboost housings
USED WITH PART NUMBERS 18001810 & 18003998X
CROSS-REFERENCE(S):
504839C91, MBIRV18006974X, 18001812, 18015776, 18006974, 18007368, 18019576, 5396-RV18006974X, HDXRV18006974X, MIDRV18006974X, ZZRV18006974X, 2770454, 1653762C92, 1663064C91, 1675774C91
A cross-reference listing means this part is a suitable replacement for the part numbers listed. Please confirm all ports and dimensions match your application before installing.
IMPORTANT INSTALLATION NOTES:
✔ Single-wire lead connection—confirm polarity and secure ground before install
✔ Direct-mount fit for Delco Hy-Power or Hydroboost booster housings
✔ Use DOT 3 or DOT 4 brake fluid only; bleed system fully to prevent cavitation
✔ Confirm voltage rating (12V standard) prior to installation
✔ Ideal retrofit for aging fleets where plug-in motors are not compatible
SOLD AS REMANUFACTURED | CORE RETURN REQUIRED
Built to OEM standards | thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
Warranty Information
