Product Description
HYDROVAC BRAKE BOOSTER (3 LINE) – FRAME MOUNT (2504303X)
PART NUMBER(S):
Fleet Products: 2504303, 2504303X
OE: 2504303, 2503151
DESCRIPTION:
Type: Single Diaphragm, 3-line unit
Mounting: Frame mount with included bracket
Diameter: 11-1/32"
Overall Length: 16-1/8"
Input Port: 1/4" Inverted Flare
Output Port: 5/16" Inverted Flare
Vacuum Supply Port: 1/2" Inverted Flare
Air Cleaner Port: 1/2"
End Cap: G
Function: Hydrovac brake booster; converts engine vacuum into hydraulic braking assistance; output port connects to master valve reservoir
Unique Features: Remanufactured to OEM standards; core return required
System Fitment: Frame-mounted unit for heavy-duty trucks and trailers; suitable for hydraulic brake systems requiring vacuum-assist power boost
CROSS-REFERENCE(S):
2504303, 2503151
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:
✔ Frame-mount design; bracket included
✔ Core return required for remanufactured unit
✔ Ports:
• Input – 1/4" Inverted Flare
• Output – 5/16" Inverted Flare
• Vacuum – 1/2" Inverted Flare
• Air Cleaner – 1/2"
✔ Contact Fleet Products for installation support and vacuum bleeding procedures
✔ Always verify fluid compatibility and inspect surrounding vacuum and hydraulic lines before install
✔ No torque specs are cited in the available documentation
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
- Fast, reliable shipping across North America
- Competitive pricing with core return refunds
- Price Match Guarantee | Find a better price? We'll beat the difference by 10%!
