W-01-00007 JHP1045 Changlin Transmission Gear Pump

W-01-00007 JHP1045 Changlin Transmission Gear Pump

Olive Branch Hydraulics is a hydraulic component manufacturer in Hebei, China. Our catalog identifies this aftermarket single hydraulic gear pump as W-01-00007 / JHP1045, internal SKU OBH-LD-063. The part number appears in Changlin ZL50H torque-converter and transmission-system parts references. Match the old pump and machine serial number before selecting the replacement.

The displayed image is our own catalog image assigned to W-01-00007. It shows a cylindrical drive shaft, a two-hole mounting flange and the pump body with a port mounting face. It does not establish shaft diameter, key dimensions or port measurements. Confirm those details from the offered-unit drawing and the original installation.

Model Names Buyers May Encounter

Our catalog uses JHP1045. Public parts suppliers also associate W-01-00007 with CBG1045A, CBGJ1045, CBGJ1A045, CBG1A045 and CBGJ1A045A. These names are included as cross-search references so buyers can identify an enquiry from an old label or parts list. They are not evidence that every pump carrying one of these names is physically interchangeable.

Changlin ZL50H is the primary application reference. Changlin 956, ZLM50E-5 and ZL30-5 also appear in supplier enquiries for this number; review each machine separately. Preserve every suffix and compare shaft, flange, ports and rotation before approving a configuration.

Transmission Application and Rotation

W-01-00007 is listed as a pump in the ZL50H torque-converter system. A published ZL50H parts-catalog reference identifies a left-rotation pump under this number. Rotation is therefore recorded as an application reference, not as a confirmed marking on the pump in our image. Confirm the viewing convention, old-pump marking and the quoted replacement, normally checking rotation from the drive-shaft end.

Do not confuse W-01-00007 with W-01-00141 simply because both appear in Changlin listings. The numbers and visible configurations must be reviewed separately. Likewise, a four-hole splined-shaft pump is not established as a match for the two-hole cylindrical-shaft configuration shown on this page.

Technical Information Required Before Ordering

Exact displacement, rated pressure, maximum pressure and speed limits are not established for this catalog entry. Do not infer 45 cm³/rev solely from the model suffix or borrow ratings from a different JHP or CBGJ pump. Request the technical data applicable to the actual offered configuration.

1. Provide the machine model, serial number and OEM parts-list entry showing W-01-00007.
2. Send readable old-pump nameplate photographs, including suffixes and rotation markings.
3. Show the shaft from several sides and measure its diameter, extension, keyway width and depth where applicable.
4. Measure mounting pilot diameter and depth, flange thickness, mounting-hole diameter and center distance.
5. Photograph the inlet and outlet faces; confirm opening size, bolt pattern, orientation and sealing arrangement.
6. Identify the transmission circuit requirements and compare the replacement drawing before installation.

Follow the machine service manual for hydraulic-fluid selection, cleanliness, priming and start-up. Inspect the coupling and transmission hydraulic circuit to identify the original fault before fitting a replacement pump.

Frequently Asked Questions

Who manufactures this aftermarket W-01-00007 pump?

Olive Branch Hydraulics is the hydraulic component manufacturer offering this pump. Changlin identifies the equipment application; it does not imply OEM affiliation or an original Changlin branded part.

Is JHP1045 the only name for this part?

JHP1045 is the model in our catalog. Other public designations are cross-search references. Exact interchange still requires a physical and technical comparison.

Can I order by ZL50H alone?

Send the complete pump part number and machine serial number as well. Machine variants and replacement histories can change the installed configuration.

Is left rotation guaranteed from the image?

No. The left-rotation reference comes from a ZL50H parts catalog. Confirm the old pump and quoted unit with an agreed viewing convention.

What do I need for a quotation?

Send W-01-00007 / JHP1045 / OBH-LD-063, quantity, machine details, old-pump photos and measurements. Availability, lead time, packaging and unit-specific specifications should be confirmed in the quotation.

Request a Matched Transmission Pump

Use the enquiry form on this page to contact Olive Branch Hydraulics. Complete identification and installation details help review the correct pump configuration for your Changlin transmission system.