Description
18020593 – DELCO HY-POWER FLOW SWITCH (TOPKICK/KODIAK)
PART NUMBER(S):
Fleet Products: 18020593 (New) | OE: Delco 18020593, 18020596, 20002K
DESCRIPTION:
Model: Delco Hy-Power Flow Switch – OEM Replacement (New, 2-Prong, 1/2″ Rod)
Vehicles: GMC TopKick (1988–1996), Chevrolet Kodiak (1988–1996), and GM medium-duty trucks using Hy-Power brake systems
• 2-prong flow switch with 1/2″ rod for Delco Hy-Power hydraulic booster units
• Designed for use with unit numbers 6700414L/M and similar Hy-Power brake assemblies
• Replaces Delco/AC Delco part numbers 18020593 and 18020596
• Sold new – no core return required
Applications: Is this flow switch right for your GM medium-duty truck✔ Yes—engineered specifically for GMC TopKick and Chevrolet Kodiak platforms using Hy-Power hydraulic brake systems. Provides OEM flow monitoring and switching functionality for reliable booster operation.
Directly compatible with Delco Hy-Power booster 18014080X (TopKick application equivalent)
CROSS-REFERENCE(S):
18020593, 18020596, 18014080X, 6700414L, 6700414M, 20002K
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:
✔ Designed for TopKick/Kodiak Hy-Power boosters including unit 18014080X
✔ 2-prong electrical connection with 1/2″ rod – verify fit prior to installation
✔ Use only DOT 3 or DOT 4 compatible hydraulic brake fluid in system
✔ Confirm proper wiring polarity to prevent electrical malfunction
✔ Install securely to Hy-Power housing and torque per manufacturer specifications
✔ New part – no core return required
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Warranty Information
