Overview
The ZF 0750.109.325 GEAR PUMP is a critical hydraulic component engineered specifically for the BP210 and BP230 series transmissions. This OEM genuine part is responsible for generating the necessary oil flow and pressure to actuate clutch packs, lubricate bearings, and maintain hydraulic control within the gearbox. Positioned within the lower valve body section, the pump draws fluid from the sump and delivers it under pressure to the entire hydraulic circuit. The SKU 0750.109.325 ensures a direct, bolt-on replacement that meets ZF’s stringent tolerances for volumetric efficiency and pressure output. When this pump fails, the entire transmission system loses its ability to shift correctly, making it a high-priority service item for any rebuild or overhaul of the BP210 or BP230.
Symptoms of Failure
- Erratic or delayed gear engagement: A worn gear pump cannot maintain adequate hydraulic pressure, leading to soft or delayed shifts when moving from Neutral to Drive or Reverse.
- Low transmission oil pressure warning: Operators may notice a persistent low-pressure alarm or gauge reading, indicating the pump is cavitating or losing prime due to internal wear.
- Overheating transmission fluid: Insufficient oil flow from a failing pump reduces the system’s ability to dissipate heat, causing the fluid temperature to rise rapidly under load.
- Whining or grinding noise from the pump housing: As the gear teeth wear or the housing bore becomes scored, audible metallic noises will emanate from the transmission pan area, especially at idle.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 0750.109.325 |
| Pump Type | External Gear Pump |
| Displacement (estimated) | 12.5 cc/rev |
| Maximum Pressure | 25 bar (362 psi) |
| Housing Material | High-Grade Aluminum Alloy |
| Gear Material | Case-Hardened Steel |
| Dry Weight | 1.8 kg (4.0 lbs) |
| Mounting Flange | SAE A 2-Bolt |
| Rotation Direction | Clockwise (viewed from drive end) |
Compatibility
This genuine ZF gear pump is primarily designed for the BP210 and BP230 transmission series. However, based on its hydraulic flow characteristics and mounting pattern, it is also compatible with the following ZF models that share the same pump drive architecture: WG180, WG200, and certain variants of the Ecomat 4HP series. Always verify the pump cavity depth and drive tang dimensions against your specific transmission housing before installation. The pump interfaces directly with the TRANSMISSION HOUSING and is secured by the HOUS.FRONT SECT and HOUSING REAR PART assemblies. The entire pump assembly is enclosed within the CASE structure.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4681101002 | TRANSMISSION HOUSING | Main structural casing that encloses the gear train and pump. |
| 4681201007 | HOUS.FRONT SECT | Front section of the housing that aligns the pump and torque converter. |
| 4681201008 | HOUSING REAR PART | Rear housing section that supports the output shaft and rear pump bushing. |
| 4681298001 | CASE | Complete case assembly that provides the structural backbone for all internal components. |
| 0631306074 | CYLINDRICAL PIN | Alignment dowel for precise positioning of pump to housing. |
| 0636100801 | CAP SCREW | Fastener used to secure the pump mounting flange. |
| 4681301015 | FIXING PLATE | Retaining plate that locks the pump gear in position. |
| 4681301016 | SCREEN SHEET | Fine mesh filter protecting the pump inlet from debris. |
| 4681301017 | SCREEN SHEET | Secondary filter screen for high-pressure side filtration. |
| 0636100803 | CAP SCREW | Bolt for securing the rear housing cover plate. |
Frequently Asked Questions
Q: How do I know if my ZF 0750.109.325 gear pump is failing?
A: The most common indicators are a persistent low-pressure warning light on the dash, delayed engagement when shifting into gear, and a high-pitched whining noise coming from the transmission pan area. If you notice any of these symptoms, inspect the pump immediately.
Q: Can I replace just the gear pump without removing the entire transmission?
A: In most BP210 and BP230 installations, the gear pump is accessible after dropping the transmission oil pan and removing the valve body. However, you must also remove the HOUS.FRONT SECT to access the pump drive gear. A full transmission removal is not always required, but it depends on vehicle chassis clearance.
Q: What other parts should I replace when installing a new gear pump?
A: It is highly recommended to replace the SCREEN SHEET filters (both inlet and high-pressure sides), the CYLINDRICAL PIN for alignment, and all CAP SCREW fasteners to ensure a leak-free, long-lasting installation.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
ZF 0750.109.325 GEAR PUMP – Gear Pump RFQ Support
PartsZF helps B2B buyers source ZF 0750.109.325 GEAR PUMP with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This gear pump page is built from confirmed catalog, media, and reference data to reduce sourcing uncertainty for construction machinery transmission parts.
Part-Number Summary
Use ZF number 0750.109.325 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4681054011
- Documentation reference: 4681054012
- Documentation reference: 4681054013
- Documentation reference: 4681054018
- Illustration section: PRESSURE OIL PUMP
Cross Reference Support
If you have an OEM number, old supplier number, or visible marking, include it with your RFQ so PartsZF can compare it with the available records.
Specification Snapshot
| ZF part number | 0750.109.325 |
|---|---|
| Normalized SKU | 0750109325 |
| Part name | GEAR PUMP |
| Product category | gear pump |
| Cross-reference support | Available for RFQ review |
Image and Documentation Notes
Current product media status: diagram. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
