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Brake Chamber GT-30/30L

SKU GT-30/30L
Cross Ref Bendix NT3030ELS-WC, NT3030ELS80, Haldex GC3030L, GC3030LCW, LC3030L, Automann 179.SB3030SL, MGM 3230951, 3230051, World American WA3030TL, Industry T30/30DD-L
$55.00

GBCT3030LS

In Stock: 276

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Cross-Reference — This Part Replaces

GBK GT-30/30L is a direct replacement for the following OEM and aftermarket part numbers:

BrandPart Number
Bendix NT3030ELS-WC
Aftermarket Ref. NT3030ELS80
Haldex GC3030L
Aftermarket Ref. GC3030LCW
Aftermarket Ref. LC3030L
Automann 179.SB3030SL
MGM 3230951
Aftermarket Ref. 3230051
World American WA3030TL
Aftermarket Ref. Industry T30/30DD-L
Bendix NT3030ELS80
Haldex GC3030LCW

Product Specifications

Material Gold Powder-Coated Steel
Chamber Type Type 30/30 Combination (Long Stroke)
Stroke 3.0" Long
Push Rod Length 13"
Push Rod Thread 5/8"-18 UNF
Clevis Detachable Threaded Clevis (Non-Welded)
Stud Thread 5/8"-11 UNC
Bolt Spacing 4.75"
Air Port 3/8" NPT, Square
Mounting Holes 2
Net Weight 33.07 lbs
Gross Weight 35.27 lbs
The GBK GT-30/30L is a gold-finish Type 30/30 combination spring brake chamber built for long-stroke applications on Class 6-8 commercial trucks and heavy-duty trailers. It pairs a 3" long-stroke service diaphragm with a high-tension parking/emergency spring brake, and ships with an extended 13" fully threaded push rod (5/8"-18 UNF) plus a non-welded detachable clevis kit for on-site cut-to-length fitment. Square air ports identify the long-stroke casting; the factory-sealed, tamper-resistant housing locks down the power spring and includes a mechanical caging bolt (T-Bolt) for safe servicing. FMVSS-121 compliant.
  • Type 30/30 Long-Stroke Combination: Double-diaphragm piggyback — Type 30 service brake plus Type 30 spring brake; 3" long stroke for extended-travel S-cam drum systems.
  • Square Air Ports: Long-stroke casting with square air-port bosses (3/8" NPT) — visually distinct from the round-port regular-stroke GT-30/30.
  • 13" Extended Threaded Push Rod: Extra-long 13" fully threaded push rod (5/8"-18 UNF) for deep-set axles; non-welded detachable clevis allows on-site cut-to-length customization; includes caging T-bolt.
  • Sealed & FMVSS-121 Compliant: Factory tamper-resistant sealed housing; gold powder-coated corrosion-resistant finish; double-diaphragm unit fully complies with FMVSS-121.
  • Universal Fit: Direct replacement for Class 6-8 semi trucks and trailers; 5/8"-11 UNC mounting studs, 4.75" bolt center spacing.
Technical Specifications: Type: T30/30 Combination Long Stroke | Service Stroke: 3.0" Long | Push Rod: 13" Threaded 5/8"-18 UNF | Clevis: Non-Welded Detachable | Mounting Studs: 5/8"-11 UNC, 4.75" bolt spacing | Air Port: Square, 3/8" NPT × 2 | Finish: Gold Powder-Coated | Includes: Clevis, Caging T-Bolt, Cotter Pin, Mounting Nuts Packaging: Sold per piece. 50 pcs/pallet.