Overview
The ZF 4681.109.001 PARKING BRAKE is a critical safety and holding component engineered specifically for the BP210 and BP230 series transmissions. This OEM genuine part engages a mechanical lock on the output shaft, preventing unintended vehicle movement when the transmission is in park. Located within the rear section of the transmission housing, the parking brake assembly interfaces directly with the 4681298001: CASE to secure the driveline. The SKU 4681.109.001 is the exact replacement for factory-installed units, ensuring proper engagement force and release timing for your ZF BP210 or BP230 transmission.
Symptoms of Failure
- Vehicle rolls on inclines when park is engaged: A worn parking brake mechanism fails to lock the output shaft, causing the vehicle to creep or roll on slopes.
- Grinding or clicking noise when shifting into park: Damaged pawl or actuator components within the 4681.109.001 produce audible metallic sounds during engagement.
- Park position feels loose or has excessive travel: Internal wear reduces the holding force, making the shift lever feel sloppy or requiring extra movement to engage park.
- Intermittent park release failure: The brake may stick or fail to disengage, leading to driveline binding or difficulty shifting out of park.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4681.109.001 |
| OEM Reference | ZF BP210 / BP230 Parking Brake Assembly |
| Material | Hardened alloy steel with corrosion-resistant coating |
| Weight | 1.85 kg (4.08 lbs) |
| Dimensions | 145 mm x 95 mm x 60 mm |
| Mounting Torque | 45 Nm (33 ft-lbs) |
| Operating Temperature | -40°C to +120°C |
Compatibility
This genuine ZF parking brake is designed for the BP210 and BP230 series transmissions. It is also compatible with the WG180, WG200, and WG210 series when used with the appropriate 4681101002: TRANSMISSION HOUSING and 4681201007: HOUS.FRONT SECT. For rear-mounted applications, verify fitment with the 4681201008: HOUSING REAR PART. Always confirm your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4681101002 | TRANSMISSION HOUSING | Main structural casing for gear and brake assembly |
| 4681201007 | HOUS.FRONT SECT | Front section housing input shaft and clutch packs |
| 4681201008 | HOUSING REAR PART | Rear casing supporting output shaft and parking brake |
| 4681298001 | CASE | Enclosure for parking brake mechanism |
| 0631306074 | CYLINDRICAL PIN | Alignment pin for brake actuator assembly |
| 0636100801 | CAP SCREW | Fastener for securing brake components |
| 4681301015 | FIXING PLATE | Retainer plate for parking brake pawl |
| 4681301016 | SCREEN SHEET | Filter screen for brake hydraulic circuit |
| 4681301017 | SCREEN SHEET | Secondary filter screen for debris protection |
| 0636100803 | CAP SCREW | Mounting bolt for housing attachment |
Frequently Asked Questions
Q: Can the 4681.109.001 parking brake be repaired, or must it be replaced?
A: ZF recommends full replacement of the parking brake assembly. Internal wear on the pawl and spring mechanism cannot be reliably restored with individual parts.
Q: How do I know if my BP210 transmission uses this specific parking brake?
A: Check the stamped part number on the brake housing near the output shaft. If it reads 4681.109.001, this is the correct OEM unit. Cross-reference with your transmission serial number for absolute confirmation.
Q: What tools are required to install this parking brake?
A: Standard socket set, torque wrench, and a seal installer. You will also need new cap screws such as 0636100803: CAP SCREW for proper torque retention.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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