Pinion Shaft
Pinion Shaft
- Catalogue reference number
- Not recorded
- Catalogue brand
- Not recorded
Catalogue fields identify reference material. They do not confirm stock, OEM authorization or interchange. Verify the nameplate, original number and edition.

Original designation: 小齿轮轴12000040378
Catalogue description records
This Pinion Shaft is a replacement power-end pinion shaft for mud pumps, identified by part number 12000040378. The pinion shaft carries the input pinion that drives the bull gear in the power end. It is supplied as an aftermarket replacement part; the part number identifies the item only and does not assert original-equipment manufacture.
The pinion shaft carries the input pinion that drives the bull gear in the power end.
Catalogue question records
Original catalogue questions are retained. Fitment and availability need technical review.
- What does the pinion shaft do?
- It carries the input pinion that drives the bull gear in the power end of the pump.
- What part number is this pinion shaft?
- It is identified by part number 12000040378, used for identification only.
Check the original reference
Search original filenames and model text here. Check part numbers inside the PDF. No associated model is selected or shortened automatically.
Prepare a review checklist
Entries on this page are not sent or saved automatically. Copy and save them before leaving.
Starts blank. Catalogue or manual quantities are not copied into your request.
Nothing has been sent.
Technical review & contact
Include the nameplate, original part number, manual page and the quantity you need. Check the original request before sending.