DELIVERY UPDATE:All orders will be dispatched on a 1 to 5 working day delivery service

Commercial Grade General Interpump EP1313G8 1" Shaft Triplex Replacement Pressure Washer Pump (4000 PSI) with Block Mounted Unloader

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  • General Pump, Model 85.139.054B
  • 1" shaft, running at 3400rpm
  • Maximum pressure of 4000 PSI
  • Up to 15.1L/min of water flow
  • Designed to be used with 10hp engines
  • Block mount unloader
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Delivery update: All orders will be dispatched on a 1 - 5 working days delivery service.There may be a slight delay in courier tracking becoming available.

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£320.00 exc. VAT £384.00 inc. VAT


General Pump EP1313G8

Part of General Pump's EP Series, the EP1313G8 is a direct drive triplex pressure washer pump, available as a full part for fitted pump replacement. Rated up to a high output of 4000PSI, it is an ideal replacement for most high-powered pressure washers with worn out pumps or those in need of changing or upgrading. Capable of a maximum flow rate of 15.1L/min, it is a lightweight but effective pump, weighing in at only 7kg. A brass head pump, it comes with an external adjustor valve and fits a 1" shaft.

Generally suited to replace pumps on pressure washers with high engine outputs, the EP1313G8 is recommended to be coupled to an engine with a 10.7hp motor to allow the maximum potential of the 4000PSI to be effected. It has a rated water flow rate of up to 10.9L per minute, if coupled to the correct engine size.

Pump part no: 85.139.054B. For more detailed specification, please see below. 

Dimensions (in mm)
Dimensions for the General Pump EP1313G8

*It is recommended that you accurately assess your requirements before trying to fit this pump.

Photos of this product are for illustration purposes. Wherever possible the correct product has been depicted, and images and information are sourced directly from the manufacturer. The manfacturer reserves the rights to change and amend products without warning or consultation. We aim to make sure the information we display is kept up to date, however caution is advised.



Warranty 90-day RTB
Manufacturer General Pump
Part No 85.139.054B
Application Standard
Pump Drive Direct Drive
Max. Flow Rate (L/min) 15.10
Head Brass
Max. Engine HP 10.00
Model No. EP1313G8, EP Series
Motor Type Petrol/Gasoline
RPM 3450.00
Shaft Diameter 1"
Pump Type Triplex
Max Pressure (Bar) 275.00
Max Pressure (PSI) 4000.00

We're working hard to ensure that all orders are unaffected by recent events whilst keeping our team as safe and well as possible. We urge our customers to follow the latest advice and to stay alert and to stay at home as much as much as possible. We are working closely with our couriers to ensure there is little to no delay in deliveries. Our current courier performance is 3 - 10 days, please be aware that when we despatch goods into the TNT network, we provide you with a tracking number. This tracking number only becomes active on the TNT portal when the goods are scanned into the Central Distribution hub in the Midlands. As of 27.05.2020 there is a 2-5 day delay getting goods into the hub. 

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