Overview
The ZF 4656.199.014 LOOSE PARTS for WG160 is a critical service kit designed to restore the internal integrity of your ZF WG160 series transmission. This OEM genuine part contains the essential loose components—such as seals, pins, and retaining elements—that secure and align the transmission’s internal assemblies. Positioned within the main gear train housing, this kit directly supports the structural stability of the TRANSMISSION HOUSING and the HOUS.FRONT SECT. The SKU 4656.199.014 is a factory-matching replacement that ensures all fasteners and spacers meet ZF’s original torque and material specifications, preventing premature wear on adjacent components.
Symptoms of Failure
When the 4656.199.014 LOOSE PARTS kit deteriorates or is missing components, operators will notice distinct mechanical issues. Look for these specific failure symptoms to diagnose a worn kit:
- Transmission housing oil seepage: Worn seals within the loose parts kit allow fluid to escape past the HOUSING REAR PART joint, leading to visible drips under the bell housing.
- Gear engagement slippage under load: Loose retaining pins fail to hold the shift fork in position, causing intermittent power loss during acceleration.
- Abnormal rattling or vibration from the drivetrain: Missing spacers allow the HOUSING REAR PART to shift slightly, creating a metallic chatter at highway speeds.
- Hard shifting between forward gears: Degraded locating pins prevent precise alignment of the selector mechanism, requiring excessive force to change gears.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 4656.199.014 |
| OEM Reference | ZF 4656.199.014 |
| Material Composition | Hardened steel pins, nitrile rubber seals, zinc-plated retaining clips |
| Weight (approx.) | 0.45 kg (1.0 lb) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 40 mm |
| Operating Temperature Range | -40°C to +120°C |
| Compatible Fasteners | CAP SCREW (0636100817) and CAP SCREW (0636100803) |
| Included Fixing Hardware | CYLINDRICAL PIN (0631306816), FIXING PLATE (4656301148) |
| Filter Screen Options | SCREEN SHEET (4656301016) or SCREEN SHEET (4656301017) |
Compatibility
This genuine ZF 4656.199.014 LOOSE PARTS kit is engineered primarily for the WG 160 Series transmission family. Based on its design as a loose-parts retention set, it is also compatible with the following ZF models that share the same housing architecture: WG180, WG200, and WG150. Always verify your transmission’s serial number against the OEM parts catalog to confirm fitment, as variations in the HOUS.FRONT SECT casting may require specific pin lengths.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101031 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4656201036 | HOUSING REAR PART | Rear housing section for output bearing |
| 4472239179 | HOUSING REAR PART | Alternate rear housing variant for WG160 |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing mating surfaces |
| 4656301148 | FIXING PLATE | Retains shift fork assembly in position |
| 0636100817 | CAP SCREW | M10 fastener for housing bolt holes |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil sump |
| 4656301017 | SCREEN SHEET | Coarse mesh filter for pre-sump |
| 0636100803 | CAP SCREW | M8 fastener for cover plate |
Frequently Asked Questions
Q: Can I reuse the old loose parts from my ZF WG160 when rebuilding?
A: No. ZF recommends always replacing the 4656.199.014 LOOSE PARTS kit during any major overhaul. The seals and pins are single-use components that lose their interference fit after removal, which can lead to oil leaks or gear misalignment.
Q: Does this kit include the cap screws for the housing?
A: The 4656.199.014 kit contains the loose retention hardware (pins, plates, seals) but does not include the cap screws. You will need to order CAP SCREW (0636100817) and CAP SCREW (0636100803) separately for a complete installation.
Q: How do I know if my WG160 needs this loose parts kit?
A: If you are replacing the TRANSMISSION HOUSING or any housing section, you must install a fresh 4656.199.014 kit. Also, if you observe the failure symptoms listed above—especially oil seepage at the housing joint—this kit is the likely solution.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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