Description
SB3030S25IT - 30/30 STD INTRX SPRING BRAKE
PART NUMBER(S):
Fleet Products: SB3030S25IT (New) | Replaces OE: Automann 179.SB3030SX | Bendix EPRO3030STD-120, EPRO3030STD120, NT3030STD-120, NT3030STD120 | Hendrickson Trailer CI-20837-2, CI208372, S-20837-1, S208371, S-20837-2, S208372, S-20837-3, S208373, S-20837-5, S208375, S-28517-2, S285172, S-28517-3, S285173 | MGM Brakes 3430551, 3430551X, 3430555 | Other 3030S25IT, STD303025IT, S208372, S208375
DESCRIPTION:
Model: INTRX 30/30 STD
Vehicles: Hendrickson Trailer and compatible commercial trailers
• Type: 30/30 spring brake chamber (standard stroke)
• Stroke: 2.5"
• Push Rod: 12.25" length, 5/8"-18 UNF (fully threaded)
• Ports: dual 3/8"-18 NPT
• Mounting: 2-stud, 5/8"-11 UNC
• Stud Spacing: ~4.75"
• Chamber Height: 9.25"
• Sealed dual-diaphragm design
• Epoxy-coated, corrosion-resistant
• Integral breather tube
• Composite guides, tamper-resistant
• Stroke alert compatible
Applications:
Designed for drive and trailer axles using 30/30 standard stroke INTRX spring brake chambers. Engineered for high-cycle, severe-service environments including Hendrickson Intraax and Vantraax trailer suspensions.
CROSS-REFERENCE(S):
3030S25IT, STD303025IT, 170.3030S25IT, 3431955, 3030INTRX-25IT, GC3030INTRX25IT, R955208, K121571, E-11800, P3030INTRX25IT, 701076, KN31003, 90557160, 5050-3030INTRX25, 650-3030INTRX25, RA3030INTRX25, 7-3030INTRX25, 3030INTRX25IT, SB3030INTRX25IT, S-3030INTRX25IT, 3430551, 3230555, 3030-TS, NT3030STD-56TC, NT3030STD-78TC, GC3030, GC3030P40, SB3030LTPX, ABPN42A43030C3D, 2830645, 456-254-C, ZAJ3430051, 991071C, 55543431051, 19-QE-441-RP1, 85132097, 85132758, R873030C, INT3030C-2, 3030CL, 3030TS, RF3030MW, 30300-001, 3430051X, 3230051X, T3030C, SB3030CC
A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ Block vehicle wheels securely before servicing brake system
✔ Depressurize air brake system completely prior to removal or installation
✔ Install using OE clamp band or mount studs; verify alignment and fitment
✔ Torque all mounting hardware to 35–40 ft-lbs
✔ Route service and emergency lines correctly to their respective ports
✔ Push rods may need to be trimmed to length; yoke not included
✔ Check for leaks and verify chamber actuation after installation
✔ Confirm fitment with OE cross-reference before purchase
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