Shurflo Positive Displacement 3 Chamber Diaphragm Pump- 12 Volt 45 Psi - 2088-424-544

Shurflo 2088-424-544 Positive Displacement 3 Chamber Diaphragm Pump- 12 Volt 45 PSI New Number Now 2088-403-144 [2088-403-144]

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Your Price: $130.86
Part Number: 2088-403-144
Quantity:
Estimated shipping cost: $ 21.00

Shurflo 2088-403-144 / 2088-424-544 12 Volt Diaphragm Pump, 45 PSI, 2.8 GPM

The Shurflo 2088-403-144, formerly sold as 2088-424-544, is a 12 VDC positive displacement 3-chamber diaphragm pump designed for general industrial, sprayer, transfer, and equipment replacement applications. This pump is factory set for 45 PSI shut-off and provides approximately 2.8 GPM open flow.

Common search and crossover numbers include: 2088-403-144, 2088-424-544, 2088-422-444, MPU 12V 45 SW PES 3.5R 2.8G 1SZW A.

Key Features

12 Volt DC permanent magnet motor
45 PSI factory shut-off, adjustable 30–50 PSI
2.8 GPM open flow rating
Self-priming up to 7 ft. vertical lift
Built-in check valve helps prevent reverse flow
Thermally protected motor
Pump head can be rotated in 120-degree increments for easier hose routing
Intermittent duty cycle

Specifications

Current Part Number	2088-403-144
Former / Alternate Part Number	2088-424-544
Pump Type	Positive displacement 3-chamber diaphragm pump
Voltage	12 VDC nominal
Flow Rate	2.8 GPM open flow
Pressure Switch	Adjustable 30–50 PSI, factory set at 45 PSI shut-off
Turn-On Pressure	25 PSI ± 5 PSI
Ports	1/2" - 14 male parallel thread
Maximum Liquid Temperature	130°F / 54°C
Maximum Inlet Pressure	30 PSI / 2.1 bar
Housing Material	Polypropylene
Valve Material	EPDM
Diaphragm Material	Santoprene
Fasteners	Zinc-plated steel
Net Weight	3.7 lbs.

Applications

Carpet cleaning and extractor equipment replacement pump
12 volt sprayer systems
General fluid transfer
Industrial water delivery applications
Mobile equipment and battery-powered systems

Important Fitment Notes

Always verify your existing pump label, voltage, pressure rating, port style, and flow direction before ordering. Many Shurflo 2088 pumps look similar but may have different pressure switches, flow ratings, valve materials, or port configurations. Product photos are for reference; orders are fulfilled by the part number purchased.

FAQ

Is 2088-403-144 the same as 2088-424-544?
This listing is for the current replacement number 2088-403-144, also associated with the prior number 2088-424-544.

Does this pump run on 120 volts?
No. This pump is rated for 12 VDC. Do not connect directly to 120 volt AC power.

Is this a continuous-duty pump?
No. This model is listed as intermittent duty. For extended run times, consider adding the Shurflo heat sink cover / cool clip when appropriate.

Can the pump head be rotated?
Yes. The pump head can be removed and rotated in 120-degree increments to help match the desired water-flow direction.

What fittings does it use?
This pump uses 1/2" - 14 male parallel thread ports. Confirm your current hose and fitting style before ordering.

Suggested Meta Title

Shurflo 2088-403-144 12V Diaphragm Pump 45 PSI 2.8 GPM | Replaces 2088-424-544

Suggested Meta Description

Buy Shurflo 2088-403-144 12 volt positive displacement 3-chamber diaphragm pump, 45 PSI, 2.8 GPM. Also sold as 2088-424-544. Industrial and equipment replacement pump.

ShurFlo 2088-424-544 Positive Displacement 3 Chamber Diaphragm Pump

Positive Displacement 3 Chamber Diaphragm Pump (Shipping after June 23, 2026)

MODEL NUMBER: 2088-424-544 (Also sold as 2088-403-144)
PUMP DESIGN: Positive Displacement 3 Chamber Diaphragm Pump
CHECK VALVE: (1-Way Operation) Prevents Reverse Flow
CAM: 3.5 Degree
MOTOR: Permanent Magnet, P/N 11-148-04, Thermally Protected
VOLTAGE: 12 VDC Nominal
PRESSURE SWITCH: Adjustable from 30-50 PSI. Factory Set @ 45 PSI Shut-Off,
Turn On 25 5 PSI
LIQUID TEMPERATURE: 130 Degrees Fahrenheit (54 Degrees Centigrade) Max.
PRIME: Self-Priming Up To 7.0 Ft. Vertical,
Max. Inlet Pressure 30 PSI (2.1 Bar)
PORTS: 1/2" - 14 Male Parallel Thread
MATERIAL OF CONSTRUCTION:
PLASTICS- Polypropylene
VALVES- EPDM
DIAPHRAGM- Santoprene
FASTENERS- Zinc Plated Steel
NET WEIGHT: 3.7 Lbs (1.68 Kg)
DUTY CYCLE: Intermittent (See Temp. Rise Chart)
TYPICAL APPLICATIONS: Industrial, General Purpose
2.8 GPM

Compare to current or past OEM associations:
2088-422-444
2088-403-144
2088-424-544

MPU 12V 45 SW PES 3.5R 2.8G 1SZW A

752524032594

752324006823
9.102-167.0
91021670

Pump heads can be removed and rotated in 120 degree increments to change the orientation of the water flow.

Steambrite processes shipments daily by Fedex, UPS, and USPS (for small packages), as well as a using a variety of freight carriers for oversized/palletized shipments. While the Steambrite website DOES reflect what is available for purchase, it does NOT reflect available inventory at our local warehouse (San Antonio, TX). Special order, or custom build items may take up to 30 days to arrive, but orders shipped from within Steambrite's warehouse inventory are generally processed and shipped in 2-5 business days. Equipment small enough to be sent by ground should typically arrive within 3-5 business days after shipment. Oversized shipments could take in excess of 6-8 working days to arrive after shipment, and ground shipping times are not guaranteed.
Shurflo 2088-424-544 Positive Displacement 3 Chamber Diaphragm Pump- 12 Volt 45 PSI New Number Now 2088-403-144 [2088-403-144]

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This product was added to our store on Saturday 07 April, 2012.