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

Honda Engines Honda Engines
Honda GX390 Petrol Engine
Honda GX390 Petrol Engine

Honda GX390 Petrol Engine

SKU: GX390K1QX
exc. vat
inc. vat
Price
£822.14
£986.57
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

Honda GX390 air cooled, 4-stroke OHV petrol engine, producing 13.0hp gross and 11.7hp net (SAE J1349), with a continuous rating of 9.4hp at 3600 RPM. It has recoil start, Oil Alert protection and a 1" parallel keyway horizontal shaft, for pressure washers, pumps, generators and other equipment.

Specification

Part numberGX390K1QX
BrandHonda
ModelGX390
Engine typeAir cooled, 4-stroke OHV petrol
Gross power13.0hp
Net power11.7hp (SAE J1349)
Continuous rated power9.4hp at 3600 RPM
StartingRecoil start
Oil AlertYes
Shaft1" parallel keyway, horizontal
Fuel tank6.1 litres
Fuel consumption3.5 litres per hour at 3600 RPM
Oil capacity1.1 litres
Dimensions406 x 460 x 448mm (L x W x H)
Weight31.7kg

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

    Related Products

    01 — 00
    Honda Air Filter GX340-390 Engines

    Honda Air Filter GX340-390 Engines

    SKU: 17210-ZE3-505
    Call for Price
    Honda Fuel Cap For GX Engines

    Honda Fuel Cap For GX Engines

    SKU: 17620-Z4H-020
    Call for Price
    Speciality Engine Oil

    Speciality Engine Oil

    SKU: 199-2002
    In Stock
    £21.53 inc. vat£17.94 ex vat
    Honda Recoil Starter Assembly

    Honda Recoil Starter Assembly

    SKU: 28400-ZE3-W01ZP
    Call for Price
    Honda Engine Service Kit

    Honda Engine Service Kit

    SKU: 699-1006
    Call for Price
    Honda-NGK Spark Plug GC135-160, GX120-160-200-240-270-340-360

    Honda-NGK Spark Plug GC135-160, GX120-160-200-240-270-340-360

    SKU: 98079-56846
    Call for Price
    1/4" Drive Key

    1/4" Drive Key

    SKU: A498108
    Call for Price
    Honda GX390 Petrol Engine - Electric Start

    Honda GX390 Petrol Engine - Electric Start

    SKU: GX390UT2-QX-E4-OH
    In Stock
    £1,543.58 inc. vat£1,286.32 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.