Menu
Skip to main content
phone.svg 015395 66193email.svg sales@flowjet.co.uk
FacebookTwitterBlogYoutube
All Products
Brands
Machine Repair
Size Charts
Offers
Contact Us
Type to search
Type to search

Shop popular:

NEW Nilfisk Hot Pressure WashersPressure WashersMachine Parts by BrandPumps & SparesPopular High Pressure HosesHose ReelsNozzlesPressure Washer TriggersUnloader ValvesInterpump Service Kits

Free UK mainland delivery on orders over £200 excluding VAT

Speak to an Expert: 015395 66193

Finance Available

Rated 4.8 on Google

Interpump Hydraulic Pressure Washer PumpsInterpump Hydraulic Pressure Washer Pumps
Interpump E3B2121 Hydraulic Motor Pump Pressure Washer Unit 21/210
Interpump E3B2121 Hydraulic Motorpump Unit

Interpump E3B2121 Hydraulic Motor Pump Pressure Washer Unit 21/210

SKU: E3B2121I-HY26
Save 19%
exc. vat
inc. vat
Was
£1,077.72
£1,293.26
Now
£872.95
£1,047.54
In Stock
Order by 2 PM for next day delivery
  • Get finance on orders over £1000 Learn More
  • Free UK mainland delivery on orders over £200 excluding VAT
  • Bulk discounts available
  • Stock moves quickly. For large or urgent orders, call 015395 66193 to confirm availability.
  • Need assistance? Call 015395 66193

Overview

Interpump E3B2121 high pressure pump and 26cm³/rev hydraulic motor unit, delivering 210 bar (3000 psi) and 21 litres per minute for pressure washers driven from a hydraulic supply on tractors, vehicles and mobile cleaning systems.

At 1450 RPM it needs 42 litres per minute of hydraulic oil at 150 bar and gives 11.5hp (8.46kW). It has a 1/2" BSP female water inlet, 3/8" BSP female water outlet, 3/4" BSP female hydraulic inlet and outlet, and a 1/4" BSP female hydraulic bypass port.

Specification

Part numberE3B2121I-HY26
BrandInterpump
Pump modelE3B2121
DriveHydraulic motor, 26cm³/rev
Maximum water pressure210 bar (3000 psi)
Maximum water flow21 litres per minute
Power11.5hp (8.46kW) at 1450 RPM
Hydraulic oil requirement42 litres per minute at 150 bar (1450 RPM)
Water inlet1/2" BSP female
Water outlet3/8" BSP female
Hydraulic inlet and outlet3/4" BSP female
Hydraulic bypass port1/4" BSP female

For technical advice or help choosing a part, call 015395 66193 or email sales@flowjet.co.uk.

Service kits

Interpump kits for this pump, taken from the Interpump parts list and quick kit guide. Check the model on your pump plate before ordering.

Piston22 x 42mm
Valve kitKIT269
Oil seal kitKIT271
Water seal kit (3 pistons)KIT286
Complete seal assembly (1 piston)KIT291
Nickel plated valve capsKIT292

    Related Products

    01 — 00
    Interpump 59 Series Ceramic Piston 22x42mm

    Interpump 59 Series Ceramic Piston 22x42mm

    SKU: 59.0401.09
    In Stock
    £44.56 inc. vat£37.13 ex vat
    Interpump E3B2121I

    Interpump 59 Series Pump - 1450 Rpm

    SKU: E3B2121I
    In Stock
    Was £691.16 ex vat£671.81 inc. vat£559.84 ex vat
    Interpump 269 valves

    Interpump Valve Kit 269

    SKU: KIT269
    In Stock
    Was £52.82 ex vat£51.34 inc. vat£42.78 ex vat
    Interpump Oil Seal Kit 271

    Interpump Oil Seal Kit 271

    SKU: KIT271
    In Stock
    Was £15.13 ex vat£14.71 inc. vat£12.26 ex vat
    Interpump Seal Kit 286

    Interpump Seal Kit 286

    SKU: KIT286
    In Stock
    Was £61.96 ex vat£60.23 inc. vat£50.19 ex vat
    Interpump Complete Seal Assembly Kit 291

    Interpump Complete Seal Assembly Kit 291

    SKU: KIT291
    In Stock
    Was £50.56 ex vat£49.14 inc. vat£40.95 ex vat
    Interpump Genuine Pump Oil

    Interpump Pump Oil

    SKU: ZOIL
    In Stock
    Was £14.92 ex vat£14.51 inc. vat£12.09 ex vat
    Interpump 59 Series HYPACK Motor Pump Unit H500-1005

    Interpump 59 Series HYPACK MPU w/ Valve & Filter H500-1005

    SKU: H500-1005
    Out of Stock
    Was £1,169.14 ex vat£1,136.40 inc. vat£947.00 ex vat
    Pratissoli RPM Counter

    Pratissoli RPM Counter

    SKU: ZRPM1
    In Stock
    £225.48 inc. vat£187.90 ex vat

    Get 10% Off Your First Order

    Join our trade list for new-stock alerts, clearance deals and expert cleaning tips. View our Privacy Policy. Unsubscribe at any time.

    Flowjet Cleaning Equipment is a family-run

    business dealing in commercial and industrial

    Pressure Washers

    Customer Service
    Contact UsAbout UsOur BrochuresServicing & RepairMachine Collection & Repair ServiceFinance
    Charts and Drawings
    Pressure Washer Nozzle ChartFoam Nozzle Size ChartParts DrawingFAQsDrone Cleaning EquipmentElectric Motor Sizing Guide
    Information
    Delivery & ReturnsTerms & ConditionsPrivacy PolicyCookie Policy
    Address

    Flowjet Cleaning Equipment LTD

    Unit 4, Gatebeck Farm

    Gatebeck, Kendal

    LA8 0HW

    United Kingdom

    015395 66193sales@flowjet.co.uk
    © 2026. Flowjet Cleaning Equipment Ltd. All rights reserved. Company No. 07548943 / VAT No. 946227313Built by Vitara Commerce
    FacebookTwitterBlogYoutube

    PROMO: Get 10% OFF

    Would you like to save 10% on your order today? Enter your email address to receive a discount code!

    By signing up, you agree to receive marketing emails. View our privacy policy and terms of service for more info.