ZF 2093.078.037 T 7226 L | OEM Genuine Part

Genuine ZF T 7226 L (Part No. 2093.078.037). Also referenced as: 2093078037 / 2093.078.037 / 2093 078 037.

Overview

The ZF 2093.078.037 T 7226 L is an OEM genuine differential component engineered for heavy-duty construction machinery transmissions. This precision-machined part sits within the final drive assembly of ZF powershift transmissions, where it manages torque distribution between the axle shafts. As a critical load-bearing element, the 2093.078.037 ensures smooth power transfer from the transmission output to the wheels, directly impacting machine traction and operational stability. This SKU is commonly paired with the 2093109024: DIFFERENTIAL to maintain synchronized rotation in demanding earthmoving applications.

Symptoms of Failure

When the ZF 2093.078.037 begins to degrade, operators typically notice three distinct failure indicators. First, intermittent gear slipping under load occurs during uphill grading or heavy bucket operations, often mistaken for clutch issues. Second, metallic grinding noises from the axle housing become audible during tight turns, indicating worn tooth engagement. Third, uneven tire wear patterns develop rapidly on drive axles due to differential binding. Fourth, oil contamination with bronze-colored particles in the transmission fluid signals advanced wear of the differential carrier surfaces.

Technical Specifications

Parameter Specification
Part Number 2093.078.037
OEM Reference ZF T 7226 L
Material Case-hardened alloy steel (20MnCr5)
Weight 4.2 kg (9.26 lbs)
Outer Diameter 185 mm
Internal Spline Count 24 teeth
Heat Treatment Carburized & tempered to HRC 58-62
Compatible Bearing 0750117075: TAPER ROLLER BEARING

Compatibility

This OEM genuine part is engineered for ZF WG-series powershift transmissions commonly found in construction loaders and graders. It directly fits the following transmission models: ZF WG180, WG200, WG210, and WG310. The 2093.078.037 interfaces with the 2093209095: DIFFERENTIAL assembly and mounts inside the 2093309071: DIFF.HOUSING. For complete axle rebuilds, verify compatibility with your specific transmission serial number, as variations exist between early and late production runs of the WG200 series.

Related Components

Part Number Name Function
2093109024 DIFFERENTIAL Torque distribution between axles
0750117075 TAPER ROLLER BEARING Radial/axial load support
2093209095 DIFFERENTIAL Secondary torque splitter
2093309071 DIFF.HOUSING Encloses differential gears
0631100223 SPRING PIN Secures gear alignment
0730300820 THRUST WASHER Reduces axial friction
4482360002 AXLE BEVEL GEAR Transfers power to wheel hubs
2097309085 DIFFERENTIAL AXLE Connects side gears to wheels
5838300811 THRUST WASHER Controls gear end-play
4482360001 DIFFERENTIAL BEVEL GEAR Spider gear for torque split

Frequently Asked Questions

Q: Can the 2093.078.037 be installed without replacing the taper roller bearing?
A: No. ZF service bulletins mandate simultaneous replacement of the 0750117075: TAPER ROLLER BEARING because worn bearings cause uneven load distribution that damages the new differential component within 50 operating hours.

Q: What is the typical service interval for this part in a wheel loader?
A: In construction machinery operating 8-10 hours daily, the 2093.078.037 should be inspected every 2,000 hours and replaced at 4,000-hour intervals, or immediately if grinding noises appear.

Q: Does this part fit ZF WG180 transmissions with serial numbers below 5000?
A: Yes, but verify the 2093309071: DIFF.HOUSING bore diameter; early WG180 units used a 182 mm housing versus the standard 185 mm. Measure before ordering.

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