Description
SB3030S25IT - 30/30 STD INTRX SPRING BRAKE
PART NUMBER(S):
Fleet Products: SB3030S25IT | OE: 3030S25IT, STD303025IT | Automann: 170.3030S25IT
DESCRIPTION:
Model: MGM INTRX 30/30 STD
Vehicles: Freightliner, Kenworth, Peterbilt, International, Mack, Volvo, Western Star, and compatible commercial trailers
• Chamber Size: 30/30 (Standard Stroke)
• Stroke: 2.5"
• Push Rod Length: 12.25"
• Push Rod Diameter: 5/8"-18 UNF
• Port Size: 3/8"-18 NPT (dual ports – service and emergency)
• Mounting: 2 x Studs, 5/8"-11 UNC, 1.65" height
• Stud Spacing: Approx. 4.75" (120.7 mm center-to-center)
• Chamber Height: 9.25"
• System Integrity: Dual-diaphragm sealed spring chamber with MGM INTRX contamination protection
• Performance: Meets FMVSS-121 and SAE J1469 standards
• Technologies:
– Epoxy-coated components
– Integral breather tube
– Composite corrosion-resistant guides
– Stroke Alert compatibility
– Tamper-resistant design
– Integral release bolt
– Fully threaded push rod (no yoke included)
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, AS1143, 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, SB3030CCA 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 (OEM specification)
✔ Route service and emergency lines correctly to their respective ports
✔ Push rods may need to be trimmed to length; yoke not included (use SAE kit #8130004)
✔ Check for leaks and verify chamber actuation after installation
✔ Confirm fitment with OE cross-reference before purchase
✔ For breather tube models, use kit #9081001 for optimal moisture resistance
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Warranty Information
