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The MGM Brakes Air Brake Chamber turns air pressure into the pushrod force that sets brake action in motion. This Type 20 long-stroke chamber belongs to service-brake operation where stroke length is part of how the assembly is expected to behave over time, and that extra travel becomes part of the larger rhythm of brake movement at the axle. Its sealed chamber body and welded clevis keep the design focused on a complete, ready-to-work configuration rather than a bare canister alone. Everything about it points toward a component built to do one job repeatedly and do it without drama. In that brake-actuation role, the MGM Brakes 1621901 carries the chamber function through each application cycle.
| Chamber Type | Service Chamber |
| Diaphragm Diameter | Rubber IN |
| Mounting Bolt Length | 1.530 IN |
| Mounting Bolt Thread | 5/8-11 |
| Port Size | 3/8-18 NPTF |
| Sealed | Sealed |
| Spring Size | N/A |
| Service Size | 20 |
| Stroke | 2.50 IN |
| Welded Yoke | Welded Yoke |
| UNIT | Aftermarket |
| Diaphragm | Rubber |
| Push Rod Length - with yoke | 2.25 |
| Rod Diameter | 5/8 |
| Country of Origin (Primary) | US |
| 2 | |
| VMRS Code | 013004027 |
| Brand | Part Number |
|---|---|
| HALDEX | SC20LCW |
| MERITOR | V913276T20, A95 3276T20 |
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