Fiat 640BH: 11.0 ml/rev, 160 bar, clockwise (CW). Flexible MOQ by model and order value; 1–2 pcs can be considered at a higher unit price.
The 640BH Fiat pump uses threaded M18×1.5 feed and M16×1.5 discharge connections rather than the plain 20 mm/13.6 mm holes shown on 5129478. Nominal displacement is still 11 ml/rev. Its clockwise rotation contrasts with the 480BH version, which has the same printed threads and rating but turns left.
An enquiry for Fiat 640BH should include the complete identifier, not a truncated family number. The corresponding Fiat hydraulic component must also be checked against the machine’s mounting arrangement.
No specific tractor serial ranges are established here for Fiat 640BH. Use the parts manual and existing hardware to complete the application check.
| Reference / model | Fiat 640BH |
|---|---|
| Product type | Tractor Hydraulic Gear Pump |
| Original reference numbers | FIAT |
| Applicable tractor models | Confirm from original pump / equipment parts list |
| Manufacturer reference | FIAT 640BH |
| Nominal displacement | 11.0 ml/rev |
| Maximum pressure | 160 bar |
| Rotational speed | 500–3000 rpm |
| Controlled flow rate | 6.0 L/min |
| Feed hole / connection | M18×1.5 |
| Discharge hole / connection | M16×1.5 |
| Rotation | clockwise (CW) |
Consider Fiat Fiat 480BH only as a reference to compare: it is designated CCW and has 11.0 ml/rev. Fiat 640BH is designated CW, so any departure in direction or shaft style must be resolved.
A hydraulic pump replacement is only correct when dimensional and operational compatibility are both demonstrated.
Fiat 640BH carries a 11.0 ml/rev displacement entry. This is not a stand-alone guarantee of a required lift speed; the working rpm and load-dependent losses remain system-specific.
Within the comparison set, Fiat 480BH lists 11.0 ml/rev and 160 bar. That is a useful limit check for the Fiat 640BH hydraulic request, not permission to alter the tractor’s original pump rating.
In addition to displacement, the table provides 6.0 L/min controlled flow. This is a separate selection datum and needs its own confirmation in the machine.
The stated speed is 500–3000 rpm. Before commissioning, verify the engine accessory drive ratio and that normal operating conditions do not exceed this listing.
Cleanliness is particularly important while servicing Fiat 640BH. Keep the hydraulic ports capped and check for swarf or grit in the suction line; contamination can damage a replacement before its first working cycle.
Make the clockwise/counterclockwise check explicit in the workshop instruction: Fiat 640BH is CW.
Rotation is specified as clockwise for Fiat 640BH. The sign of this dimension is decisive even when the housing and gear-drive arrangement appear nearly identical.
For hose matching, write down both port specifications: feed M18×1.5, discharge M16×1.5. Thread class and sealing face matter as much as nominal size.
Drive rotationCW
Displacement11.0 ml/rev
Connection checkM18×1.5 / M16×1.5
Quote the complete cross-reference FIAT and include the existing pump’s mounting view. If there is an unusual fitting, supply a close-up with a ruler or a thread gauge reading.
Let the quotation identify any uncertainties in compatibility before manufacturing begins.
No. Confirm the exact pump removed from the tractor, its drive-side rotation and its connection geometry.
The listed supply/discharge values (M18×1.5 and M16×1.5) do not describe the full gasket, thread seat or bolt pattern.
Order quantities are set according to pump type and total order value. A small order of 1–2 pieces can be considered at a higher unit price; new customers may request 1–5 samples when the item is suitable. Mixed-model orders are available, normally with a combined order value of approximately USD 1,500.
Typical production schedules are 10–25 working days for standard items, 20–45 working days for customized components, and 45–120 working days for project equipment. Usual delivery terms are EXW, FOB, CIF and DAP. FCA, CFR, CPT, CIP and DDP can be discussed for specific shipments. Confirm the final schedule and terms with the quotation.
Third-party brand names and trademarks are used only for product identification and cross-reference. They remain the property of their respective owners; such references do not imply affiliation, sponsorship, authorization or endorsement.
Send the old pump reference, quantity, photos and interface measurements to our sales team.
sales@netherlandsdrive.com
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