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Series 26 Gear Pump, 0.66 cu in/rev, 2-Bolt SAE A Mounting Flange, 3/4 St.Keyed x 1-1/4 long Shaft, SAE-16 Side Inlet, SAE-10 Side Outlet Ports, CW Rotation.

Description & Features

The Danfoss Power Solutions II LLC (Char-Lynn) Series 26 Gear Pump is a key component for demanding industrial applications like tractors, machine tools, and sweepers. Engineered with 13-tooth gears, this pump ensures minimized flow ripple, resulting in reduced noise and vibration during operation.

This 0.66 cubic inch per revolution pump features a 2-Bolt SAE A mounting flange and a 3/4 St. keyed shaft that is 1-1/4 inches long. It includes a SAE-16 side inlet and a SAE-10 side outlet port, supporting a clockwise rotation. Designed for efficiency, it uses inlet oil for bearing lubrication, improving mechanical and volumetric performance.

With an ability to handle pressures up to 3000 PSI and a speed rating of 3600 RPM, this gear pump offers reliable performance. The innovative wear plate allows for easy rotation changes by switching the drive and idler gears. The robust temperature range of -20deg;F to 220deg;F ensures adaptability in diverse environments.

Supplier Part Number: 26004-RZC

Catalog Number: C1FD31

Specifications

Application Tractors & harvesters, Machine tools, Steering circuits, Compactors, Sweepers, Rotary & reel mowers, Lift trucks, Fan drive systems, Auxiliary work circuits	Configuration 32	Design Code A	Displacement 0.66	Displacement 0.66	Brand Danfoss – Hydraulics	Brand Danfoss Power Solutions	Pack Size 1.00	UOM EA	Features Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	Identification Standard	Minimum Working Temperature -20	Mount 2-Bolt SAE A	Mount 2-Bolt SAE A	Ports SAE-16 Side Inlet, SAE-10 Side Outlet	Ports SAE-16 Side Inlet, SAE-10 Side Outlet	Pressure Rating 3000	Rated Flow 5.10	Rated Flow 5.1	Rotation CW	Shaft 3/4 St.Keyed x 1-1/4 long	Shaft 3/4 St.Keyed x 1-1/4 long	Special Features None	Speed Rating 3600 RPM	Speed Rating 3600 RPM	Supplier Part Number 26004-RZC	Alternate Part Numbers Alternate Part Number C1FD31, Alternate Part Number MINO-00287X70048	Product Weight 6.00 lbs

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Model Number	Displacement	Rated Flow	Mount	Shaft	Ports	Rotation	Features	Speed Rating	Pressure Rating
26002-RZC Series 26 Gear Pump	0.5	3.9	2-Bolt SAE A	3/4 St.Keyed x 1-1/4 long	SAE-16 Side Inlet, SAE-10 Side Outlet	CW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3600 RPM	3000
26004-RZC Series 26 Gear Pump	0.66	5.1	2-Bolt SAE A	3/4 St.Keyed x 1-1/4 long	SAE-16 Side Inlet, SAE-10 Side Outlet	CW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3600 RPM	3000
26006-RZC Series 26 Gear Pump	1.02	7.9	2-Bolt SAE A	3/4 St.Keyed x 1-1/4 long	SAE-16 Side Inlet, SAE-10 Side Outlet	CW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3200 RPM	3000
26007-RZC Series 26 Gear Pump	1.2	9.3	2-Bolt SAE A	3/4 St.Keyed x 1-1/4 long	SAE-16 Side Inlet, SAE-10 Side Outlet	CW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3200 RPM	3000
26003-RZG Series 26 Gear Pump	0.58	4.5	2-Bolt SAE A	5/8 St. Keyed	SAE-12 Side Inlet, SAE-10 Side Outlet	CW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3600 RPM	3000
26003-RZJ Series 26 Gear Pump	0.58	4.5	2-Bolt SAE A	9 Tooth SAE A Splined	SAE-12 Side Inlet, SAE-10 Side Outlet	CW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3600 RPM	3000
26004-RAF Series 26 Gear Pump	0.66	5.1	2-Bolt SAE A	3/4 St.Keyed x 2 inches long	SAE-16 Side Inlet, SAE-10 Side Outlet	CW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3600 RPM	3000
26004-RZE Series 26 Gear Pump	0.66	5.1	2-Bolt SAE A	9 Tooth SAE A Splined	SAE-16 Side Inlet, SAE-10 Side Outlet	CW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3600 RPM	3000
26005-RZC Series 26 Gear Pump	0.84	6.5	2-Bolt SAE A	3/4 St.Keyed x 1-1/4 long	SAE-16 Side Inlet, SAE-10 Side Outlet	CW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3600 RPM	3000
26005-RZE Series 26 Gear Pump	0.84	6.5	2-Bolt SAE A	9 Tooth SAE A Splined	SAE-16 Side Inlet, SAE-10 Side Outlet	CW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3600 RPM	3000
26007-LZC Series 26 Gear Pump	1.2	9.3	2-Bolt SAE A	3/4 St.Keyed x 1-1/4 long	SAE-16 Side Inlet, SAE-10 Side Outlet	CCW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3200 RPM	3000
26007-RZE Series 26 Gear Pump	1.2	9.3	2-Bolt SAE A	9 Tooth SAE A Splined	SAE-16 Side Inlet, SAE-10 Side Outlet	CW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3200 RPM	2850
26011-RZC Series 26 Gear Pump	1.69	13.1	2-Bolt SAE A	3/4 St.Keyed x 1-1/4 long	SAE-16 Side Inlet, SAE-10 Side Outlet	CW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3000 RPM	3000
26012-RZJ Series 26 Gear Pump	1.77	13.7	2-Bolt SAE A	9 Tooth SAE A Splined	SAE-12 Side Inlet, SAE-10 Side Outlet	CW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3000 RPM	1950
26013-LZC Series 26 Gear Pump	1.87	14.5	2-Bolt SAE A	3/4 St.Keyed x 1-1/4 long	SAE-16 Side Inlet, SAE-10 Side Outlet	CCW	Reduced noise and vibration\|Improved volumetric and mechanical efficiency\|Field reversible pump direction	3000 RPM	3000

Product Questions & Answers (3)

Question by: Wade M on May 23, 2025, 1:53 PM

trying to match up ports on my setup. what size are the inlet and outlet on this pump?

Answer by: Customer Support on May 24, 2025, 2:09 PM

Porting on this one is set up with an SAE-16 side inlet and an SAE-10 side outlet, both on the side of the housing.

Question by: Hank P on Sep 8, 2025, 4:50 PM

Hey, I'm trying to figure out if this pump can handle the kind of heat my tractor throws off during the summer. What's the highest temp it can take?

Answer by: Customer Support on Sep 10, 2025, 4:26 PM

This gear pump is rated to handle continuous oil temperatures up to 220°F, so it should hold up even on hot days. Just make sure your system's overall cooling is in good shape.

Question by: Dwayne E on Dec 31, 2025, 5:33 PM

got a little tractor project going. what’s the mounting and shaft size on this pump?

Answer by: Customer Support on Jan 2, 2026, 12:44 PM

For fit-up, it uses a 2-bolt SAE A mounting flange and a 3/4 straight keyed shaft that’s 1-1/4 inches long.

Series 26 Gear Pump, 0.66 cu in/rev, 2-Bolt SAE A Mounting Flange, 3/4 St.Keyed x 1-1/4 long Shaft, SAE-16 Side Inlet, SAE-10 Side Outlet Ports, CW Rotation.

Description & Features

Specifications

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Product Questions & Answers (3)