Overview
The ZF 4681.183.009 LOOSE PARTS set is a critical OEM genuine service kit engineered specifically for the BP230 series transmission. This assembly contains the essential loose components—including seals, retaining rings, and small hardware—required to secure and seal the internal clutch packs and valve body assemblies within the transmission housing. The SKU 4681.183.009 is typically installed during a major overhaul or when replacing the TRANSMISSION HOUSING to ensure all fasteners and spacers meet OEM torque and clearance specifications. Without this genuine loose parts kit, the BP230 risks improper oil flow and premature wear of planetary gearsets.
Symptoms of Failure
When the ZF 4681.183.009 LOOSE PARTS begin to degrade or are missing from the assembly, operators often notice specific performance issues. Look for these failure indicators:
- Oil leaks at the housing seam: Worn seals within the loose parts kit cause transmission fluid to weep between the HOUS.FRONT SECT and the main case, leading to low fluid levels.
- Gear slipping under load: Missing or damaged retaining clips prevent proper clutch pack engagement, resulting in erratic shifting or complete loss of drive in higher gears.
- Abnormal vibration during acceleration: Loose fasteners from the kit allow internal components to shift, creating a rhythmic shudder that worsens with RPM.
- Delayed engagement from Park to Drive: Worn spacers reduce hydraulic pressure buildup, causing a 2-3 second lag before the transmission engages.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4681.183.009 |
| Material | Steel alloy with nitrile rubber seals |
| Weight | 0.45 kg (1.0 lb) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 30 mm |
| OEM Reference | ZF BP230 Series |
| Compatible Fasteners | CAP SCREW (0636100801) and CAP SCREW (0636100803) |
Compatibility
This genuine ZF 4681.183.009 loose parts kit is designed primarily for the BP230 series, but it also fits several other ZF heavy-duty transmission models that share the same internal architecture. Compatible transmissions include the WG180, WG200, WG210, and the HP600 series. The kit is essential when servicing the HOUSING REAR PART or replacing the CASE assembly. Always verify your transmission serial number before ordering to ensure the 4681.183.009 matches your specific build.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4681101002 | TRANSMISSION HOUSING | Main structural casing for gear and clutch assemblies |
| 4681201007 | HOUS.FRONT SECT | Front section housing the torque converter and pump |
| 4681201008 | HOUSING REAR PART | Rear casing supporting output shaft and bearings |
| 4681298001 | CASE | Complete case assembly for BP230 series |
| 0631306074 | CYLINDRICAL PIN | Alignment pin for housing sections |
| 0636100801 | CAP SCREW | Fastener for securing housing flanges |
| 4681301015 | FIXING PLATE | Retainer plate for clutch pack assembly |
| 4681301016 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4681301017 | SCREEN SHEET | Secondary mesh filter for valve body |
| 0636100803 | CAP SCREW | Bolt for rear housing attachment |
Frequently Asked Questions
Q: Can the 4681.183.009 LOOSE PARTS be reused after a transmission rebuild?
A: No. ZF specifies that this kit contains single-use seals and locking fasteners. Reusing them risks oil leaks and fastener loosening. Always install a new OEM kit when servicing the BP230.
Q: Does this kit include the CAP SCREWS for the housing?
A: The 4681.183.009 kit includes small loose parts like retaining rings and gaskets, but not the main housing bolts. You will need to order CAP SCREW (0636100801) and CAP SCREW (0636100803) separately for a complete installation.
Q: How do I confirm this part fits my WG180 transmission?
A: Check the transmission serial number stamped on the CASE. The 4681.183.009 is compatible with WG180 units built after 2010. If your serial number begins with “BP230,” it is a direct match.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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