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The Meritor Drive Axle Shaft Seal protects the shaft interface within U Series axles featuring a 7.25-inch nominal bore and 5.5-inch nominal shaft size. Its sealing design keeps differential lubricant contained inside the axle housing while forming a barrier against road contaminants. That protection prevents gear oil migration toward brake assemblies and shields internal components from debris intrusion. Stable sealing integrity supports drivetrain efficiency during torque transfer under load. Because lubrication control is essential within U Series configurations, the Meritor A 1205Z1820 provides secure shaft interface protection.
| VMRS Code | 022-002-009 |
| Aftermarket Extended Warranty - General | 3 Years / 300K Miles |
| Axle Series | U |
| Brand | Meritor Genuine |
| Nominal Bore (in) | 7.25 in. |
| Nominal Bore (mm) | 184.15 mm |
| Nominal Shaft ( Mm) | 139.7 mm |
| Nominal Shaft (in) | 5.50 in. |
| Oe Part | 370120A |
| OEM | National |
| Pallet Quantity | 220 |
| Weight | 1.40 |
| Brand | Part Number |
|---|---|
| 1205Z1820, TDAA1205Z1820 | |
| NATIONAL SEALS | 370120A |
| STEMCO | 392-9053 |
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