Overview
The ZF 4656.183.240 LOOSE PARTS set is a critical service kit designed for the WG 160 series transmission. This assembly contains the internal fasteners, seals, and positioning components that secure the main housing sections together. Without this genuine OEM part, the structural integrity of the gearbox is compromised. The SKU 4656.183.240 is specifically engineered to interface with the TRANSMISSION HOUSING and the HOUS.FRONT SECT, ensuring that all mating surfaces remain perfectly aligned under high torque loads. This loose parts kit replaces all worn hardware in a single installation, restoring factory clamping force and preventing internal component migration.
Symptoms of Failure
When the 4656.183.240 components degrade, operators often notice oil weeping from the main housing seam during extended highway operation. A second common failure indicator is intermittent gear engagement hesitation caused by slight housing flex under load. Technicians also report abnormal vibration at the bell housing when the fasteners lose their preload. Finally, metal debris in the transmission pan can appear if the loose parts allow the HOUSING REAR PART to shift out of tolerance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4656.183.240 |
| Material | High-tensile steel with zinc-nickel plating |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 180 mm x 120 mm x 45 mm |
| OEM Reference | ZF 4656.183.240 |
| Fastener Grade | 10.9 (ISO 898-1) |
| Torque Specification | 85 Nm ± 5 Nm |
Compatibility
This loose parts kit is primarily validated for the ZF WG 160 series, but it also fits the WG 180 and WG 200 models when used with the correct HOUSING REAR SECTION. It is compatible with all WG 160 variants including the WG160-6 and WG160-8. For older WG 120 applications, verify the bolt pattern against the existing HOUSING REAR PART before ordering. The kit is not backward-compatible with pre-2005 WG 140 units without adapter plates.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101055 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4656201075 | HOUS.FRONT SECT | Front section of the transmission housing |
| 4656201076 | HOUSING REAR PART | Rear section of the transmission housing |
| 4656298047 | HOUSING REAR SECTION | Alternate rear housing component |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 4656301148 | FIXING PLATE | Retention plate for internal components |
| 0636100817 | CAP SCREW | M10 bolt for housing fastening |
| 4656301016 | SCREEN SHEET | Filter screen for oil circuit |
| 4656301017 | SCREEN SHEET | Secondary filter screen |
| 0636100803 | CAP SCREW | M8 bolt for accessory mounting |
Frequently Asked Questions
Q: Can I reuse the old fasteners from my WG160 instead of buying the 4656.183.240 kit?
A: No. ZF specifies that all fasteners in this loose parts kit are single-use torque-to-yield bolts. Reusing them risks housing separation under load.
Q: Does this kit include the gaskets for the housing joints?
A: The 4656.183.240 includes only the loose hardware (bolts, pins, and clips). You must order the corresponding gasket set separately for the TRANSMISSION HOUSING and HOUS.FRONT SECT.
Q: How do I verify the 4656.183.240 fits my specific transmission serial number?
A: Check the rear face of your transmission for the casting code. If it matches the WG160 pattern, this kit is compatible. For WG180 or WG200 units, cross-reference the HOUSING REAR SECTION part number on your existing unit.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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