Description
374000 – NEW HYDROVAC (PISTON STYLE)
PART NUMBER(S):
Fleet Products: 374000
Clark: 756251, Ford: D2HA25195AA, C4085X, 2208488, D5HT2005AA, 2512139X, 3727820, D5HZ2D, 2512140X, 3761237, IHC: 77180R91, White: 77180R91
DESCRIPTION:
Model: 374000
Vehicles: Dodge, IHC, Ford, GMC Trucks, Trailers, Busses, Tractors
• Type: Piston-Style Hydrovac (Single Piston)
• Diameter: 6-3/4"
• Overall Length: 14-1/2"
• Input Port: 1/2" - 20 Thread
• Output Port: 1/2" - 20 Thread
• Air Cleaner Port: 1/2"
• Vacuum Supply Port: 3/8" NPT
• End Cap: A or E
• Actuation Type: Vacuum-assisted piston
• Function: Hydrovac brake booster
• System Fitment: Designed for heavy-duty hydraulic brake systems in medium and large vehicles
Applications:
This 6-3/4" piston-style hydrovac brake booster is built for precision vacuum-assisted braking in commercial trucks, buses, and agricultural or industrial trailers. Sold as new—no core exchange required—it ensures easy integration into OE-style hydraulic brake systems where compact form factor and full performance are required.
CROSS-REFERENCE(S):
374000, 2208488, PB-374000-R, 379474, RV379474X
A cross-reference listing means this part is functionally interchangeable with the given numbers but may differ in brand, appearance, or cost.
IMPORTANT INSTALLATION NOTES:
✔ Confirm 1/2" - 20 input/output port compatibility with existing hydraulic lines
✔ Vacuum supply port must be 3/8" NPT; air cleaner connection is 1/2"
✔ Mounting configuration is not explicitly documented—verify on inspection
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Warranty Information
