Description
SB3030S2500 - 30/30 STD SPRING BRAKE
PART NUMBER(S):
Fleet Products: SB3030S2500 (New) | Replaces OE: Automann 179.SB3030S | Bendix 165255, K049898, NT3030STD120, NT3030STD-120, NT3030STD78, NT3030STD-78, EPRO3030STD-78, EPRO3030STD78, NT3030STDWC | Haldex GC3030, GC3030P40 | Mack 19QE441RP1 | Freightliner 3030TS | MGM Brakes 3430051, 3430051X | Euclid E-BC3030C, E-BC3030CPLBX | Alliance ABPN42A33030CD, ABPN42A3LR3030CD | Batco 3030C, 3030CIS, 3030CE, 3030CSS | Torque TR3030C | Dayton 3030C, 3030CE, 3030CIS, 3030CSS | Fleetrite FLTC30301305, FLTC3030SCB20 | PROLINE PLBTS3030, PLBTS3030X | TRP SB3030CC | Volvo 3946338 | Other 1010447, 1010449, S2500, ATXCTS3030
DESCRIPTION:
Model: 30/30 Standard Stroke Spring Brake Chamber
Vehicles: Freightliner, Kenworth T660, Peterbilt 379, Volvo VNL 670 Gen 2 (2003–2019), and other heavy-duty trucks/trailers
• Type: 30/30 spring brake chamber (30 in² service / 30 in² emergency)
• Stroke: 2.5"
• Push Rod: 10.55" length, 5/8"-18 UNF
• Mounting: 2-stud, 5/8"-11 UNC
• Stud Spacing: 4.75"
• Ports: dual 3/8"-18 NPT
• Chamber Height: 9.25"
• Housing: corrosion-resistant steel (epoxy-coated)
• Sealed spring chamber design
• Dual-diaphragm (service + emergency)
• Heavy-duty, high cycle life design
Applications:
Built for drive and trailer axles on commercial trucks requiring 30/30 standard stroke spring brake chambers. Common across freight haulers, vocational trucks, and fleets needing sealed, weather-resistant emergency/parking brakes. Direct drop-in replacement for OEM chambers including Bendix, Haldex, and Mack part numbers.
CROSS-REFERENCE(S):
SB3030S2500, 3030S2500, S2500, 1010447, 1010449, 30/30, 3030STD, GC3030, LC3030, NT3030STD, S3030, S3030STD, 801386, 800386, E-11796, UP3030S2500, 179.SB3030S, NT3030STD78, 3431951, 3431951X, 3030TN2-2074, 165255, K049898, NT3030STD120, NT3030STD-120, 3030TS, GC3030P40, 19QE441RP1
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 wheels securely before removing brake chamber
✔ Depressurize air brake system prior to installation
✔ Use correct clamp band or stud mount based on axle type
✔ Torque mounting hardware to 35–40 ft-lbs unless OE specifies otherwise
✔ Ensure proper routing of service/emergency ports
✔ Set push rod length according to axle/brake specifications
✔ Leak test system after install and check for full chamber stroke
✔ Verify stroke type, mounting dimensions, and OE fitment before ordering
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Warranty Information
Reviews
1 Review
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Straightforward install with proper adjustment flexibility
Installed this 30/30 spring brake on a drive axle replacement. The no-clevis design made a real difference, being able to set the push-rod length to match the existing slack adjuster avoided rework and stroke issues. Build quality is solid, ports and studs lined up correctly, and the chamber sealed up without leaks after installation. Parking and service brake operation are back within spec. Good option when you don’t want to fight fixed rod lengths.
