ZF 6057.018.796 for WG160 | OEM Genuine Part

Overview

The ZF 6057.018.796 is a precision-engineered OEM genuine component designed specifically for the WG 160 Series transmission. This part functions as a critical sealing and alignment element within the transmission’s hydraulic control system, ensuring consistent oil pressure regulation and smooth gear engagement. Positioned near the main valve body assembly, the SKU 6057.018.796 works in tandem with the TRANSMISSION HOUSING to maintain structural integrity under high torque loads. Its primary role is to prevent cross-contamination between lubrication circuits, directly influencing shift quality and overall drivetrain reliability.

Symptoms of Failure

When the ZF 6057.018.796 begins to degrade, operators may notice specific performance issues. Common failure indicators include:

• Erratic shift timing – Delayed or harsh gear changes due to pressure loss in the hydraulic circuit.
• External oil seepage – Visible fluid accumulation around the WG160 housing, often mistaken for a gasket failure.
• Intermittent gear slipping – Temporary loss of power transfer under load, particularly during uphill climbs or heavy hauling.
• Increased operating temperature – The transmission runs hotter than normal as internal friction rises from insufficient lubrication.

These symptoms often appear gradually, making early diagnosis critical to avoid secondary damage to the HOUS.FRONT SECT or adjacent valve components.

Technical Specifications

Parameter	Value
Part Number (SKU)	6057.018.796
Material	High-grade aluminum alloy with nitrile sealing surface
Weight	0.85 kg (1.87 lbs)
Dimensions (L x W x H)	145 mm x 72 mm x 38 mm
OEM Reference	ZF 6057.018.796 (Genuine)
Operating Pressure Range	8–18 bar
Temperature Range	-40°C to +120°C

Compatibility

This OEM genuine part is engineered for the ZF WG 160 Series transmission family. It is also compatible with the following ZF models when used in conjunction with the HOUSING REAR PART and HOUSING REAR SECTION:

• ZF WG 160
• ZF WG 180 (with adapter kit)
• ZF WG 200 (limited to early production runs)
• ZF WG 150 (retrofit applications)

Always verify your transmission serial number before installation to ensure proper fitment with the main housing assembly.

Related Components

The following parts are commonly replaced or inspected alongside the 6057.018.796 during a WG160 overhaul:

Part Number	Name	Function
4656101057	TRANSMISSION HOUSING	Main structural casing for gear and shaft assembly
4656201075	HOUS.FRONT SECT	Front section housing for pump and converter
4656201078	HOUSING REAR PART	Rear housing section supporting output shaft
4656298050	HOUSING REAR SECTION	Extended rear housing for auxiliary drives
0631306816	CYLINDRICAL PIN	Alignment dowel for housing mating surfaces
4656301148	FIXING PLATE	Retaining plate for valve body positioning
0636100817	CAP SCREW	M10x25 fastener for housing attachment
4656301016	SCREEN SHEET	Fine mesh filter for oil return circuit
4656301017	SCREEN SHEET	Coarse mesh pre-filter for suction line
0636100803	CAP SCREW	M8x20 fastener for cover plate

Frequently Asked Questions

Q: Can the 6057.018.796 be installed without removing the transmission from the vehicle?
In most cases, yes. The part is accessible after draining the fluid and removing the lower pan. However, if the TRANSMISSION HOUSING shows signs of corrosion, full removal may be required for proper sealing.

Q: How often should this part be replaced during routine maintenance?
ZF recommends inspecting the 6057.018.796 every 500 operating hours or during major overhauls. Replace it immediately if any cracking or deformation is visible, especially if paired with a worn HOUS.FRONT SECT.

Q: Is this part interchangeable between WG160 and WG180 transmissions?
Direct interchange is possible only when using the correct adapter kit. Always cross-reference your transmission’s serial number with the HOUSING REAR SECTION dimensions to confirm fitment.