Dana / Spicer 110527 Side Gear – Differential Side Gear (18 Tooth, 41 Spline)
The Dana / Spicer 110527 Side Gear is a genuine OEM differential side gear designed for heavy-duty Dana Spicer single- and double-reduction drive axles used in commercial trucks, vocational vehicles, construction equipment, and off-highway machinery. As a critical component of the differential assembly, the side gear transfers torque from the differential case to the axle shaft while allowing the differential to compensate for differences in wheel speed during cornering.
Manufactured from heat-treated alloy steel, the 110527 is engineered to withstand the extreme torque loads, shock loading, and continuous-duty service found in heavy-haul and severe-service applications. Precision-machined splines and gear teeth ensure proper engagement with the axle shaft and differential pinion (spider) gears, promoting smooth power transfer and extended service life.
The Dana 110527 is widely used in numerous Dana Spicer axle families and is a common replacement component during complete differential overhauls or axle rebuilds.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Dana / Spicer |
| Part Number | 110527 |
| Component Type | Differential Side Gear |
| Differential Location | Side Gear (Axle Shaft Gear) |
| Gear Teeth | 18 Teeth |
| Internal Splines | 41 Splines |
| Casting Number | 37072-F |
| Hub Diameter | 3.114–3.126 in (79.1–79.4 mm) |
| Material | Heat-treated alloy steel |
| Manufacturing | Precision machined and hardened |
| Approximate Weight | 5.34 lb |
| VMRS Code | 022-003-048 |
| Condition | New OEM Replacement |
The side gear mates with Dana differential pinion gears including 104139, 129691, and 095218, depending on axle configuration.
The Dana 110527 side gear is found in numerous heavy-duty Dana Spicer axle families, including:
- Dana 18100 Series
- Dana 18120 Series
- Dana 18200 Series
- Dana 18220 Series
- Dana 18300 Series
- Dana 18320 Series
- Dana 381 Series
- Dana 381P Series
- Dana 402 Series
- Dana 402P Series
Cross References:
- Euroricambi 24170174, 110527
- General Motors 15513213
- AM Gears 66314
- Eurotec 24000167
- PAI 94470, 9447, EE94470
- Freightliner ETN110527
- Navistar ETN0110527, DS110527
- Mack 2719-110527
- OE Aftermarket 6843932









