Chief 256502 — Hydraulic Pumps & Power Units
KKM Solutions is an independent parts distributor, not an authorized Chief dealer — how we source.
Chief Group 3 Hydraulic Gear Pump: 1.57 CID (26cc), 7/8" Key Shaft, SAE B 2-Bolt Mount, SAE 16/12 Ports, CW Rotation
Overview
Part number 256502 from Chief, listed in Hydraulic Pumps & Power Units. Specifications on file: Cubic Inch Displ. (CID) 1.59; GPM 11.4 (@1800 RPM); Inlet Port SAE-16; MPN 256502. KKM Solutions quotes this part with pricing and availability confirmed per order.
Constructed of an aluminum center housing and cast-iron end plates, the Chief 3PG series is a high-pressure hydraulic gear pump with seven displacement sizes from 1.34 to 3.66 in3/rev (22-60cm3/rev). The standard mounting flange is SAE B—2 bolt, and the standard shaft is a 7/8" diameter straight with a 1/4" key. Additional shaft options are available.The recommended working conditions are as follows:Filtration: 25 microns or betterOil Viscosity: 6 to 200 cStAmbient Temperature: -8 to 130° F (-22 to 55° C)Oil Temperature: -12 to 175° F (-25 to 80° C)Inlet pressure 12 to 32 PSI absoluteSpecific model features:Model code: GP30-26D-78KB2CID: 1.57 (26 CC)GPM: 11.4 @ 1800 RPMRPM: 2000 (rated), 3500 (max)PSI: 3625 (rated), 4060 (max)Shaft: 7/8” Straight, 1/4” KeyMounting flange: SAE B—2 boltPorts: SAE 16 /12Rotation: Clockwise
Specifications
| Cubic Inch Displ. (CID) | 1.59 |
|---|---|
| GPM | 11.4 (@1800 RPM) |
| Inlet Port | SAE-16 |
| MPN | 256502 |
| Outlet Port | SAE-12 |
| Product Line | Chief |
| PSI | 3625 (rated), 4060 (peak) |
| Rotation | Clockwise |
| Shaft | 7/8" Straight Key |
| Speed | 2000 (rated), 3000 (max) RPM |
| Weight | 11.70 LBS |
Product details
| Manufacturer | Chief |
|---|---|
| Manufacturer part number | 256502 |
| Product category | Hydraulic Pumps & Power Units |
| Published specifications | 11 attributes listed |
| Related part numbers | 2 other part numbers in this family |
Request a quote for this part
Email orderdesk@kkmsolutions.com or call (825) 454-5367 for pricing and availability.
Frequently Asked Questions
How do I get pricing for 256502?
This part is quoted on request, so no price is listed for it here. Send the quote form on this page with your quantity, or email orderdesk@kkmsolutions.com, and our order desk will reply with pricing and availability within 1 business day.
Who manufactures the 256502?
256502 is made by Chief and is listed in our Hydraulic Pumps & Power Units category. KKM Solutions is an independent distributor, not an authorized Chief dealer: we source the exact Chief part number 256502, and the quote confirms condition and lead time before you order.
Is the 256502 new and genuine?
Parts we supply are new and genuine unless the quote expressly states otherwise. Where a part is new-old-stock, from excess inventory, refurbished or open-box, the quote says so before you approve it.
What warranty comes with the 256502, and can I return it?
Parts we supply are warranted against manufacturing defects for 1 year from the date of delivery; where the manufacturer's own warranty is longer, the manufacturer's warranty applies. The warranty covers repair, replacement, or credit of the defective part and does not cover normal wear items, misapplication, improper installation, or consequential damages. Contact us within 30 days of delivery before returning anything — all returns need a return authorization from the order desk.
What is the lifecycle status of 256502?
No published lifecycle status is on file for 256502. Chief lists whether a catalog number is current, superseded or end-of-life on its own product page, and our order desk confirms the status with the manufacturer at quote time, before you commit. Send the part number through the quote form on this page.
What are the key specifications of 256502?
Key specifications include Cubic Inch Displ. (CID): 1.59; GPM: 11.4 (@1800 RPM); Inlet Port: SAE-16; MPN: 256502. The full specification table on this page lists every published attribute for this part.
How much does 256502 weigh?
Per the published specification for 256502: Weight: 11.70 LBS. Confirm against the full specification table on this page, or ask our order desk to verify it with the manufacturer at quote time.
How quickly can 256502 ship?
Lead time for 256502 is quoted per order and confirmed on your quote, which our order desk sends within 1 business day. For a line-down emergency, call the 24/7 order desk at (825) 454-5367.
Variants & Related Part Numbers
Other Chief part numbers in this family:
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