Description
This Predator HD Parts long-stroke Type 30/30 tandem brake chamber is a direct replacement for service-and-spring brake chambers carrying the 3030-TSLS pattern (Bendix NT3030ELS80, World American WA3030TL, Newstar S-17204, Haldex GC3030L, and others). Combined service-and-parking unit with 3 in long-stroke service section, supplied with universal push rod, clevis, and mounting hardware.
Signs You Need a New Brake Chamber
- Audible air leak from the chamber body or clamp band
- Brakes drag or hang up after pedal release
- Visible corrosion, dents, or impact damage to the can
- Spring brake fails to release or apply properly
- Stroke indicator running at or past adjustment limit
Specifications
| Manufacturer | Predator HD Parts |
|---|---|
| Part Number | PHD3030-TSLS |
| Part Type | Tandem (Service + Spring) Brake Chamber |
| Chamber Type | Type 30/30 Long Stroke |
| Service Stroke | 3 in (long stroke) |
| Push Rod | ~11.75 in universal, with clevis and hardware |
| Includes | Hardware kit and clevis |
Cross References
This part replaces or is equivalent to the following part numbers:
- Bendix: NT3030ELS80, BWNT3030ELS80, BXNT3030ELS80
- World American: WA3030TL, WA3030LS, WA3030TCLS
- MGM Brakes: TR3030CLS, TR030CLS, T3030ELS
- Haldex: GC3030L, GC3030LRM1D, MIDGC3030L
- Newstar: S-17204
- Freightliner / TRP: 3030-TSLS, 3030-TSLSDTP, 3030-TSLSHTP, FLT3030LCB20
- SBA / SB-style: SB3030CL, SB3030LS, SB3030SLS, SB33030, 3030SBLS, 3030SB-LS, 3030SBLS-8050
- Also known as: 12960, 3030054, 3230051, PLBTS-3030LS, PLBPS-3030KLS-SC, 3833051, 17204SS, ATX17204, ATP17204, MPGS-17204, RL3530BZ-J, ACA-40271700, 3030TS1LS, 3030LS-15, 3030LSPBK, SCA3030LS, SCA3030PBLS, RC SB3030LS, HDX GC3030L, OTR3030SB-13C, HD3030LS, MDLCP3030L, HDE3030-TSLS, VIP3030-TSLS, GTS17204, PS3030-TSLS, GTP3030TSLS, TF 3030-TSLS, TKL30/30ELS, TK 12960, ZAJ3230051, ZZGC3030L, XX3030TSLS, XX-3030-TSLS
Applications
This Type 30/30 long-stroke tandem chamber fits drive and trailer axles equipped with the 3030-TSLS pattern across:
- Class 8 tractors (Freightliner, Kenworth, Peterbilt, Mack, Volvo, International, Western Star)
- Heavy-duty trailers and tankers using long-stroke service brakes
- Vocational and refuse chassis with combined spring brake / service chamber requirements
Confirm chamber type (Type 30/30, long stroke), mounting bolt centerline, push-rod length, and air-port orientation before ordering. Long stroke chambers must be matched to long-stroke-rated slack adjusters and pedal valves.









