(Hydro-Vac / Hy-Power brake booster 18015765

“Delco Hy-Power Hydro-Vac/Brake Booster, hydraulic-actuated, casting #18015765, designed for GM Medium/Heavy trucks (e.g., GMC Topkick), features fixed eyelet push rod approx 9″, fully remanufactured to OEM specs, installs without master cylinder.”