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420 Mobile Piston Pump, 2.50 cu in/rev, 2-Bolt SAE B Mounting Flange, 13T SAE B Splined Shaft, Pressure Compensated Load Sense

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Description & Features

This Eaton Vickers 420 Series open circuit piston pump is designed for mobile applications, including loader backhoes, mining machinery, and agricultural tractors. The pump features pressure-compensated load sense control for increased efficiency. Its robust design incorporates a saddle-type swashplate with steel-backed polymer bearings.

The 420 Mobile Piston Pump has a 2.50 cu in/rev displacement and a 2-Bolt SAE B mounting flange with a 13T SAE B splined shaft. It is finished with a blue primer per Spec 209-13Cd and has a maximum operating pressure of 4060 psi.

SKU: 421AK00694B

Supplier Part Number (MPN): 421AK00694B

Alternate Part Numbers: C1KG78

Specifications

Application
Loader backhoes, Vibratory cable plows, Mining machinery, Dump truck lifts, Agriculture tractors, Chemical applicator trucks, Railroad equipment, Container handling, all terrain and truck cranes, Vibratory cable plows, Mining machinery and tunnel boring equipment, Utility boom, off road dump and refuse trucks, Material handling trucks and rough terrain fork lifts, Concrete and asphalt pavers, Feller/bunchers, forwarders and log loaders, Crawler dozers, Articulate haulers, Mini excavators
Color
Blue Primer Per Spec 209-13Cd
Control
Pressure Compensated Load Sense
Design Code
Second
Displacement
2.50
Displacement
2.5
Brand
Danfoss Power Solutions II (Char-Lynn)
Brand
Char-Lynn
Pack Size
1.00
UOM
EA
Features
Fastest response and recovery times in the market|Increase efficiency with advanced control options|High pressure and flow capacity
Identification
Mark Eaton Product Number and Full Model Code On Label
Maximum Operating Pressure
4060
Mount
2-Bolt SAE B
Mount
2-Bolt SAE B
Pressure Rating
4060
Rated Flow
19.50
Rated Flow
19.5
Series
420 Series Open Circuit Piston Pump
Shaft
13T SAE B Splined
Shaft
13T SAE B Splined
Supplier Part Number
421AK00694B
Alternate Part Numbers
Alternate Part Number C1KG78, Alternate Part Number MINO-00569X96006
Product Weight
53.10 lbs

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Product Questions & Answers (2)

Question by: Dwight M on Jan 30, 2026, 6:22 AM
What kind of machines would this pump be good for? Seems like I saw something about loaders...
Answer by: Customer Support on Feb 1, 2026, 8:57 AM
It's a solid choice for loader backhoes, agriculture tractors, and material handling trucks. You'll also find it in mining machinery and even some railroad equipment.
Question by: Bonnie B on Jan 15, 2026, 6:30 PM
running this on a loader backhoe, want to make sure the shaft and mount are gonna line up right before i order -- 2-bolt SAE B flange with a 13-tooth splined shaft, that correct?
Answer by: Customer Support on Jan 17, 2026, 5:13 PM
those specs are right. The 2-bolt SAE B mounting flange pairs with a 13T SAE B splined shaft on this unit. If your backhoe was built around that SAE B footprint, you're looking at a direct fit on both the mount and the shaft interface.