Shijiazhuang Dongli Petroleum Machinery (DLSY) stocks the Oteco piston assembly, 5-3/4 in with 1-1/2 to 1-5/8 in bore size, reference I-56-B14/15. We manufacture pump fluid-end wear parts and export them to Canada, the United States and other international oil & gas markets. Send your part reference or a used sample and we will confirm dimensions before production.
FAQ
Do you stock piston assemblies for Oteco pump equipment?
Yes. We hold the 5-3/4 in piston assembly with 1-1/2 to 1-5/8 in bore size, reference I-56-B14/15. Other bore sizes can be quoted on request.
How do I pick the right bore size for the piston assembly?
Match the bore to the piston rod or pony rod diameter on your fluid end. If you are unsure, send us the old piston or its reference number and we will confirm the correct build.
Will this piston assembly fit my Oteco fluid end?
The assembly is built to Oteco equipment dimensions. Confirm the reference I-56-B14/15 against your parts list, or send photos and measurements for us to cross-check.
How long does a piston assembly last in service?
Piston life depends on mud abrasiveness, duty cycle and liner condition. Inspect the piston at each liner change and replace it when the sealing lip or hub shows wear.
Do you ship Oteco parts to Canada and the United States?
Yes. North America is a core market, and we export pump spares to Canada, the United States and other international oil & gas regions under HS code 84139100.