Overview
The ZF 2094.352.046 VALVE HOUSING is a precision-machined hydraulic control body that directs pressurized oil flow within the WG100, WG130, and WG131 transmission series. Acting as the central distribution manifold for clutch and brake actuation, this OEM genuine component ensures precise shift timing and torque converter lock-up. The SKU 2094.352.046 is engineered to maintain strict oil gallery tolerances, preventing cross-leakage between circuits. This valve housing sits directly above the main control valve block and interfaces with the transmission sump, making its sealing integrity critical for overall system pressure stability.
Symptoms of Failure
- Delayed or harsh gear engagement: Worn bore surfaces inside the 2094.352.046 cause spool valve sticking, resulting in a 2-3 second lag when shifting from Neutral to Drive or Reverse.
- Erratic shift patterns under load: Internal cracks or porosity in the valve housing lead to pressure bleed-off, causing the transmission to hunt between gears during uphill climbs or towing.
- External oil seepage at the valve body gasket: Warpage of the housing mating face produces visible oil drips on the transmission pan, often mistaken for a pan gasket leak.
- Torque converter shudder at highway speeds: Compromised oil passages prevent proper lock-up clutch modulation, creating a vibration felt through the accelerator pedal at 55-65 mph.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2094.352.046 |
| Material | High-pressure die-cast aluminum alloy (EN AC-46000) |
| Overall Dimensions | 310 mm x 180 mm x 65 mm |
| Dry Weight | 2.85 kg (6.28 lbs) |
| OEM Reference | ZF 2094 352 046 |
| Bore Diameter Tolerance | H7 (0.025 mm max deviation) |
| Operating Pressure Range | 8-22 bar (116-319 psi) |
| Seal Groove Count | 12 O-ring grooves |
Compatibility
This valve housing is specifically designed for ZF’s WG-series powershift transmissions used in construction and agricultural machinery. Confirmed fitment includes:
- ZF WG100 (3-speed, 100 mm gear center distance)
- ZF WG130 (4-speed, 130 mm gear center distance)
- ZF WG131 (4-speed with integrated parking brake)
While not directly compatible with WG180 or WG200 models, the 2094.352.046 shares its mounting bolt pattern with earlier WG80 variants. Always verify the casting number on your existing housing before ordering.
Related Components
When replacing the valve housing, inspect these companion parts that share the same hydraulic circuit. The 5838109012: DIFFERENTIAL and 2093209023: DIFFERENTIAL assemblies rely on proper valve housing pressure for lubrication. The 0750117075: TAPER ROLLER BEARING supports the output shaft directly below this housing, while the 5838300626: DIFFERENTIAL HOUSING encloses the final drive gears.
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | Differential | Distributes torque to axle shafts |
| 0750117075 | Taper Roller Bearing | Supports output shaft radial loads |
| 2093209023 | Differential | Reduces final drive speed |
| 5838300626 | Differential Housing | Encloses differential gears |
| 0631329088 | Spring Pin | Retains valve spool alignment |
| 5838300811 | Thrust Washer | Controls axial play in differential |
| 5838300721 | Axle Bevel Gear | Transfers power to wheel hubs |
| 5838300633 | Axle | Connects differential to wheel end |
| 5838300753 | Thrust Washer | Reduces friction in gear stack |
| 5838300818 | Thrust Washer | Prevents gear face wear |
Frequently Asked Questions
Q: Can the 2094.352.046 valve housing be repaired if the bores are scored?
A: Minor scoring can sometimes be addressed with a valve body reaming kit, but ZF recommends replacement for any bore wear exceeding 0.05 mm. The housing’s internal cross-drilled passages cannot be sleeved reliably.
Q: Does this valve housing include the solenoid mounting bolts?
A: No. The 2094.352.046 ships as a bare housing without solenoids, bolts, or gaskets. You will need to transfer your existing solenoid assembly and use new O-rings (ZF part 0730.101.924) during installation.
Q: What torque specification applies to the valve housing bolts?
A: Tighten the M8 mounting bolts to 22 Nm (16 ft-lbs) in a crisscross pattern. Over-torquing can distort the housing and cause internal valve binding.
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