The Meritor RS15120R456 is a rear differential carrier engineered for heavy-duty truck applications, featuring a 4.56 ring-and-pinion ratio with a 34-spline pinion and 38-spline axle gears. The RS15120 carrier is also referenced as RS15120R456. The 4.56 ratio positions this unit in the mid-range numerically, commonly selected for vocational and highway haul configurations where gear-down pulling and reasonable cruise RPM are both priorities. Pro Gear and Transmission carries this genuine Meritor differential. This unit is sold on an exchange basis; a core charge applies and is subject to Meritor's core policy upon return and inspection. Call us to confirm proper fit for your axle configuration.
A refundable core charge of $1,000.00 applies to this item and will be collected at checkout. The core charge is refunded upon receipt of your returned core, subject to its condition; customer is responsible for return shipping. Call us at (877) 776-4600 for details.
Features
Meritor part number RS15120 or RS15120R456
4.56 ring-and-pinion gear ratio
34-spline pinion
38-spline axle gears
Sold on a core exchange basis - core charge applies
Genuine Meritor rear differential carrier
Tech Specs
- 34 SPLINE PINION
- 38 SPLINE AXLE GEARS
