Product Description
18006974X – DELCO HY-POWER LEAD WIRE STYLE HYDRAULIC BRAKE BOOSTER MOTOR
PART NUMBER(S):
Fleet Products: 18006974X (Remanufactured) | OE: Delco 18006974, 504839C91, 1653762C92
DESCRIPTION:
Model: Lead Wire Style Hydraulic Brake Booster Motor and 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 or Hydroboost systems
• Remanufactured electric motor and pump assembly for hydraulic booster systems
• Single lead wire connection (1-wire style) – requires polarity and ground check
• 12V DC operation for brake assist when engine-driven hydraulic supply is insufficient
• Works with DOT 3 or DOT 4 fluid-based booster systems
• Designed for direct integration with Delco Hy-Power and Haldex Hydroboost housings
Applications: Is this motor right for your truck or bus? Yes—built for GM TopKick/Kodiak, IHC medium-duty, and major bus platforms, this Delco lead-wire style motor ensures reliable brake assist in fleet service where plug-in motors are not compatible.
CROSS-REFERENCE(S):
504839C91, MBIRV18006974X, 18001812, 18015776, 18006974, 18007368, 18019576, 5396-RV18006974X, 767653092904, 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.
SUPPORT & ORDERING
For technical support, installation guidance, or to confirm fitment, Call: 1-877-243-0442 | Email: sales@fleet-products.com
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