Product Description
HYDROVAC BRAKE BOOSTER – IHC TANDEM APPLICATION (2509870X)
PART NUMBER(S):
Fleet Products: 2509870, 2509870X
OE: 2509870
DESCRIPTION:
Type: Hydrovac brake booster with integrated master cylinder
Application: IHC (International Harvester Company) tandem axle trucks
Function: Converts engine vacuum into hydraulic pressure to assist braking on heavy-duty vehicles
Actuation Type: Air-over-hydraulic
Condition: Remanufactured to OEM standards (core return required)
Quality Control: Thoroughly cleaned, inspected, and tested for performance and durability in demanding tandem truck operations
System Fitment: Designed for use on IHC tandem axle truck platforms with hydraulic brake systems
Fluid Compatibility: DOT 3 brake fluid only (do not use DOT 5 silicone fluid – causes rubber swelling)
Unique Features: Designed specifically for IHC tandem platforms; remanufactured replacement for OEM part; exact port dimensions and mounting hardware not published in available sources
CROSS-REFERENCE(S):
2509870
A cross-reference listing means that this part should be a suitable replacement for the part numbers listed. Please check the description to be sure it fits your application.
IMPORTANT INSTALLATION NOTES:
✔ DOT 3 brake fluid required; never use DOT 5 (silicone-based) fluid
✔ Replace or flush master cylinder during installation to avoid contamination
✔ Use a pressure bleeder for air removal; do not run engine during bleeding
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
WHY CHOOSE FLEET PRODUCTS | KBR - HEAVY DUTY TRUCK & TRAILER PARTS?
- Canadian-owned and operated since 1985
- Trusted by fleets, mechanics, and B2B partners across North America
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- Competitive pricing with core return refunds
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