Dana Spicer 4212221 24V Transmission Solenoid Assembly
The Dana Spicer 4212221 Solenoid Assembly is a genuine 24-volt electrical/hydraulic control component designed for select Dana Spicer off-highway transmissions. Installed within the transmission’s hydraulic valve system, the solenoid converts an electrical command into hydraulic valve operation, helping control the flow and pressure of transmission fluid required for proper transmission functions.
Dana’s aftermarket catalog classifies 4212221 as a Transmission Electric Component, while Dana service-parts documentation identifies it specifically as an “Assembly–Solenoid 24V.”
In documented Dana Spicer TE13 and TE17 transmission applications, the 4212221 installs in the 4215873 Full Flow Valve Assembly. The full-flow valve assembly combines electronically controlled solenoids, hydraulic spools, springs, pressure sensors, and sealing components to regulate hydraulic functions within the transmission.
Key Features & Specifications
- Manufacturer: Dana / Spicer
- Part Number: 4212221
- Product Type: Solenoid Assembly
- System: Transmission hydraulic/electrical control
- Product Category: Transmission Electric Components
- Voltage: 24V
- Application Type: Dana Spicer off-highway transmissions
- Documented Transmission Families: TE13 / TE17
- Related Valve Assembly: 4215873 Full Flow Valve Assembly
- Function: Electrically actuates hydraulic control within the transmission valve system
- Construction: OE-style electrical solenoid with hydraulic valve interface
- Condition: Genuine Dana Spicer replacement component
Includes Sealing O-Rings
Dana’s TE13/TE17 service-parts documentation shows the 4212221 solenoid assembly supplied with four associated O-rings, which provide the necessary hydraulic sealing between the solenoid and valve body:
- 76K116 – O-ring
- 76K16 – O-ring
- 76K15 – O-ring
- 76K14 – O-ring
These seals are identified by Dana as components of the 4212221 solenoid assembly.
Designed for Off-Highway Transmission Control
In an electronically controlled off-highway transmission, solenoids play an important role in directing pressurized transmission fluid. When energized by the transmission control system, the solenoid actuates a hydraulic circuit within the valve body. This allows the transmission to regulate functions such as clutch application, pressure control, or other hydraulic operating functions depending on the specific transmission configuration.
Because these systems rely on precise hydraulic pressure and electrical response, a worn or failed solenoid may contribute to symptoms such as:
- Improper or delayed transmission operation
- Hydraulic pressure-control problems
- Transmission fault codes
- Intermittent shifting or engagement issues
- Failure of a commanded hydraulic function
Diagnosis should be performed before replacement because similar symptoms can also result from wiring, connectors, pressure sensors, hydraulic contamination, valve-body wear, or other transmission components.
Application Verification Recommended
The 4212221 is documented by Dana as a transmission component, despite some aftermarket catalogs categorizing it more broadly as an off-highway component. Dana’s own service literature places it within the 24V full-flow valve assembly used on TE13/TE17 transmissions, making Transmission Components → Electrical Components → Solenoids the most appropriate product classification.
Additional aftermarket references also associate 4212221 with certain Dana TE-series transmissions used in Kalmar equipment, but the exact transmission model and assembly number should always be verified before ordering.
The Dana Spicer 4212221 24V Solenoid Assembly is an OE-quality replacement for compatible Dana Spicer off-highway transmission hydraulic control systems, providing the correct electrical actuation, hydraulic interface, and sealing configuration required for reliable transmission operation.
