ZF 2093.070.015 TRA 20 | OEM Genuine Part

Overview

The ZF 2093.070.015 TRA 20 is a precision-engineered transmission component designed for heavy-duty construction machinery. This OEM genuine part functions as a critical load-bearing element within the final drive assembly, ensuring smooth torque distribution from the gearbox to the axles. The SKU 2093.070.015 is specifically manufactured to ZF’s original tolerances, making it a direct replacement for worn units in demanding earthmoving and material handling equipment. It sits at the interface between the differential housing and the axle shafts, where it manages rotational forces and reduces vibration under extreme loads.

Symptoms of Failure

When the ZF 2093.070.015 TRA 20 begins to wear, operators will notice distinct performance degradation. Common failure indicators include:

• Oil leaks near the axle housing – Worn seals or cracked casing allow transmission fluid to escape, often visible as drips under the machine.
• Gear slipping under load – The part loses its ability to maintain positive engagement, causing intermittent power loss when climbing grades or carrying heavy buckets.
• Metallic grinding noises – Internal wear produces a high-pitched whine or grinding sound during turns or acceleration, indicating bearing or gear surface damage.
• Uneven tire wear – Differential action becomes compromised, leading to excessive scrub on one side of the machine during straight-line travel.

Technical Specifications

Parameter	Value
Part Number	2093.070.015
Material	Case-hardened alloy steel (20MnCr5)
Weight	4.2 kg (9.26 lbs)
Outer Diameter	185 mm
Inner Diameter	72 mm
Height	48 mm
OEM Reference	ZF 2093.070.015
Thread Pitch	M12 x 1.5

Compatibility

This TRA 20 component is designed for integration into ZF’s WG180, WG200, and WG250 transmission series commonly found in wheel loaders, excavators, and telehandlers. It also fits select models of the ZF 4WG-200 and 6WG-250 power shift transmissions used in construction machinery from manufacturers like Caterpillar, Volvo, and JCB. Always verify your transmission model number before ordering.

During installation, this part works in concert with several adjacent components. The 2093109022 DIFFERENTIAL distributes torque to the wheels, while the 0750117075 TAPER ROLLER BEARING supports axial loads. For complete assembly, pair it with the 2093209096 DIFFERENTIAL and the 2093309073 DIFF.HOUSING to ensure proper alignment and sealing.

Related Components

Part Number	Name	Function
2093109022	DIFFERENTIAL	Distributes torque between left and right wheels
0750117075	TAPER ROLLER BEARING	Supports radial and axial loads in the axle
2093209096	DIFFERENTIAL	Secondary differential for planetary gear sets
2093309073	DIFF.HOUSING	Encloses and protects differential gears
0631100223	SPRING PIN	Secures gears to shafts with vibration resistance
0730300820	THRUST WASHER	Reduces axial friction between rotating parts
4482360002	AXLE BEVEL GEAR	Transfers power from driveshaft to differential
2097309085	DIFFERENTIAL AXLE	Carries differential side gears
5838300811	THRUST WASHER	Prevents metal-to-metal contact in differential
4482360001	DIFFERENTIAL BEVEL GEAR	Changes torque direction in the differential

Frequently Asked Questions

Q: Can the ZF 2093.070.015 TRA 20 be used in ZF 4WG-200 transmissions?
A: Yes, this part is compatible with ZF 4WG-200, 6WG-250, and WG180 series transmissions. Verify your transmission serial number for exact fitment.

Q: What causes premature wear on this component?
A: Common causes include contaminated transmission fluid, overloading the machine beyond rated capacity, and improper torque during installation. Regular fluid analysis can extend service life.

Q: Is this part interchangeable with aftermarket alternatives?
A: This OEM genuine part is manufactured to ZF’s original specifications. Aftermarket copies may have different metallurgy or tolerances, potentially causing accelerated wear on associated components like the 0750117075 TAPER ROLLER BEARING.