• Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)
  • Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)

Optional Extras

  • Twin Pack of Equipguard® 10W-40 Engine Oil For Petrol and Diesel Pressure Washers (1L)

    Twin Pack of Equipguard® 10W-40 Engine Oil For Petrol and Diesel Pressure Washers (1L)

    £24.99 Inc VAT

    [£20.83 Ex VAT]

  • Turbo Nozzle / Spinning Jet 4000 PSI / 280 bar for Pressure washer

    Turbo Nozzle / Spinning Jet 4000 PSI / 280 bar for Pressure washer

    £39.50 Inc VAT

    [£32.92 Ex VAT]

    Add

  • Kiam High Pressure Hose 10m Extension (220 Bar)

    Kiam High Pressure Hose 10m Extension (220 Bar)

    Was £66.95

    £56.99 Inc VAT

    [£47.49 Ex VAT]

  • Hypo Jet® 2.0 Chemical Injector Softwash Applicator

    Hypo Jet® 2.0 Chemical Injector Softwash Applicator

    £189.95 Inc VAT

    [£158.29 Ex VAT]

    Add

  • Twin Turbo Nozzle Attachment

    Twin Turbo Nozzle Attachment

    £99.95 Inc VAT

    [£83.29 Ex VAT]

    Add

  • Hypo SuperFoam+ (Patio Cleaner) Softwash Solution

    Hypo SuperFoam+ (Patio Cleaner) Softwash Solution

    £39.99 Inc VAT

    [£33.33 Ex VAT]

    Add

  • Kiam SurfacePro 18 Rotary Floor Cleaning Tool Steel Flat Surface Cleaner 18"

    Kiam SurfacePro 18 Rotary Floor Cleaning Tool Steel Flat Surface Cleaner 18"

    Was £599.00

    £399.00 Inc VAT

    [£332.50 Ex VAT]

  • Kiam SurfacePro 21 Rotary Floor Cleaning Tool Steel Flat Surface Cleaner 21"

    Kiam SurfacePro 21 Rotary Floor Cleaning Tool Steel Flat Surface Cleaner 21"

    Was £799.00

    £469.00 Inc VAT

    [£390.83 Ex VAT]

  • Kiam SurfacePro 21 Dual Trigger Steel Rotary Floor Cleaning Tool & Wash Broom 21"

    Kiam SurfacePro 21 Dual Trigger Steel Rotary Floor Cleaning Tool & Wash Broom 21"

    Was £849.00

    £675.00 Inc VAT

    [£562.50 Ex VAT]

  • AquaReach Pro 5.4m (18') LIGHTWEIGHT Telescopic Lance with FREE HARNESS

    AquaReach Pro 5.4m (18') LIGHTWEIGHT Telescopic Lance with FREE HARNESS

    £159.95 Inc VAT

    [£133.29 Ex VAT]

  • IBC Water Tank Container (1000L)

    IBC Water Tank Container (1000L)

    £155.00 Inc VAT

    [£129.17 Ex VAT]

  • Pressure Washer Lance 19.5" (500mm) M22 Screw Thread - 1/4" Quick Release

    Pressure Washer Lance 19.5" (500mm) M22 Screw Thread - 1/4" Quick Release

    £26.45 Inc VAT

    [£22.04 Ex VAT]

  • Pressure Washer Lance 36" (900mm) M22 Screw Thread - 1/4" Quick Release

    Pressure Washer Lance 36" (900mm) M22 Screw Thread - 1/4" Quick Release

    £29.95 Inc VAT

    [£24.96 Ex VAT]

  • Pressure Washer Lance 60" 1500mm M22 Screw Thread - 1/4" Quick Release

    Pressure Washer Lance 60" 1500mm M22 Screw Thread - 1/4" Quick Release

    £42.95 Inc VAT

    [£35.79 Ex VAT]

  • Pressure Washer Lance 80" 2000mm M22 Screw Thread - 1/4" Quick Release

    Pressure Washer Lance 80" 2000mm M22 Screw Thread - 1/4" Quick Release

    £47.99 Inc VAT

    [£39.99 Ex VAT]

  • High Pressure Hose Reel (100ft / 30m) - Fixed base

    High Pressure Hose Reel (100ft / 30m) - Fixed base

    Was £139.99

    £129.95 Inc VAT

    [£108.29 Ex VAT]

  • High Pressure Hose Reel (200ft / 60m) - Fixed base

    High Pressure Hose Reel (200ft / 60m) - Fixed base

    Was £194.99

    £159.95 Inc VAT

    [£133.29 Ex VAT]

RATED EXCELLENT ON TRUSTPILOT

EXPRESS DELIVERY AVAILABLE

Kiam KM3700PR Petrol High Pressure Washer Jet Cleaner - Gearbox Version (14HP)

Was £1,950.00

£1,075.00 Inc VAT

[£895.83 Ex VAT]

Quantity

IN STOCK

KEY FEATURES

Key Features

  • 3700 PSI Max Pressure: Exceptional cleaning power for tough tasks.
  • 3400 PSI Operating Pressure: Ensures smooth and reliable performance.
  • 15 Litres Per Minute Flow Rate: Provides powerful and efficient cleaning.
  • 14HP 4-Stroke Petrol Engine: High-performance LONCIN engine for robust power.
  • Gearbox-Driven Brass Pump: Equipped with German Parker seals for durability and reduced wear.
  • Thermal Relief Valve (TRV): Prevents overheating and ensures safe operation.
  • 5 Quick-Release Nozzles: Includes 0, 15, 25, 45, and 80-degree nozzles for versatile cleaning.
  • Variable Pressure Control Valve: Allows precise pressure adjustments.
  • Variable Throttle Control: Provides easy engine speed adjustments.
  • Low Oil Shut Down Protection: Safeguards the engine from low oil levels.
  • Heavy Duty Steel Chassis: Powder coated for durability with rubber anti-vibration shock absorbers.
  • Low Pressure Detergent Application: Features a detergent pipe filter for easy application.
  • 10M High Pressure Hose: Industrial quality hose for extended reach.
  • Professional Grade Trigger Gun: High pressure gun with a stainless steel lance.
  • Recoil Starter: Robust and reliable starting mechanism.
  • Pneumatic Tyres: For easy maneuverability on various terrains.
  • 12 Months Return to Base Warranty: Ensures peace of mind with your purchase.

FULL DESCRIPTION

KIAM® Logo
🔧 GEARBOX BRASS PUMP • 🌊 TANK-FEED READY

KM3700PR — 15 LPM Petrol Pressure Washer

14 HP Loncin 4-stroke with gearbox-driven brass pump, German Parker seals & TRV — built for daily pro use.

MAX PRESSURE
3700 PSI (255 bar)
FLOW RATE
15 LPM
ENGINE POWER
14 HP Loncin

🛢️ Tank-Feed Ready

Draw from tanks/butts/mains with suction hose & filter.

🛡️ Built to Last

Gearbox-driven brass pump + Parker seals + TRV.

⚡ Quick-Swap Control

5 quick-release nozzles for instant mode changes.

💪 Why Professionals Choose the KM3700PR

  • Gearbox drive reduces pump RPM for cooler, longer life.
  • German Parker seals for superior sealing & durability.
  • Thermal Relief Valve protects pump against heat build-up.
  • Low-pressure detergent mode for chemical application.

Working pressure appears in the technical specs for consistency.

Feeding from a tank? Our guide: Tank/Butt Feeding

🎯 Use-Case Intensity


Light washDomestic patiosDrivewaysHeavy rinse

🏗️ Trade & Site Work

Durable setup for daily jobs.

🚚 Fleets & Plant

Cut downtime with fast rinsing.

🧼 Chem Rinse

Perfect after downstreaming.

💡 Key Features

  • Gearbox-driven brass pump for longevity & smoother operation.
  • Low-oil shutdown protects the engine automatically.
  • Includes 10 m HP hose, pro trigger gun & steel lance.
  • 5 quick-release nozzles: 0°, 15°, 25°, 40°, soap.
  • Detergent pickup via low-pressure nozzle.
  • Tank-feed ready: suction hose + inline filter included.

📦 In the Box

  • KM3700PR petrol pressure washer unit
  • 10 m high-pressure hose & detergent pipe
  • Professional trigger gun & steel lance
  • 5 × quick-release steel spray nozzles
  • Water suction hose with inline filtration
  • Tool kit & user manual

📊 Technical Specifications

Feature Details
Model KIAM KM3700PR
Max Pressure 3700 PSI / 255 bar
Working Pressure 3400 PSI / 234 bar
Rated Flow 15 L/min
Pump Gearbox-driven brass pump with TRV & German Parker seals
Engine 14 HP Loncin OHV 4-stroke (air-cooled)
Engine Speed 3400 rpm
Fuel Type ⛽ Unleaded petrol
Displacement 420 cc
Max Torque 26.5 N·m
Dimensions (L×W×H) 79 × 50 × 60 cm
Weight 68 kg

📘 More info & manuals: Instruction Manuals

🧰 Start a Driveway Business

Read the guide

📚 Cleaning Tutorials

Explore articles

🎓 Petrol vs Diesel

Compare options

🚀 Pro-grade pressure with gearbox longevity — Choose the KM3700PR for your next serious clean.

CUSTOMER REVIEWS

WHATS IN THE BOX?

Included in the Box

  • 1x KM3700PR Petrol Pressure Washer Unit
  • 1x 10m High Pressure Hose
  • 1x Detergent Pipe & Filter
  • 1x High Pressure Trigger Gun
  • 1x Steel Lance with Nozzle Connector
  • 5x Steel Quick Release Spray Nozzles
  • 1x 3m Water Suction Hose with Water Filter
  • 1x Tool Kit
  • 1x User Manual

PRODUCT VIDEOS

Optional Extras

  • Twin Pack of Equipguard® 10W-40 Engine Oil For Petrol and Diesel Pressure Washers (1L)

    Twin Pack of Equipguard® 10W-40 Engine Oil For Petrol and Diesel Pressure Washers (1L)

    £24.99 Inc VAT

    [£20.83 Ex VAT]

  • Turbo Nozzle / Spinning Jet 4000 PSI / 280 bar for Pressure washer

    Turbo Nozzle / Spinning Jet 4000 PSI / 280 bar for Pressure washer

    £39.50 Inc VAT

    [£32.92 Ex VAT]

    Add

  • Kiam High Pressure Hose 10m Extension (220 Bar)

    Kiam High Pressure Hose 10m Extension (220 Bar)

    Was £66.95

    £56.99 Inc VAT

    [£47.49 Ex VAT]

  • Hypo Jet® 2.0 Chemical Injector Softwash Applicator

    Hypo Jet® 2.0 Chemical Injector Softwash Applicator

    £189.95 Inc VAT

    [£158.29 Ex VAT]

    Add

  • Twin Turbo Nozzle Attachment

    Twin Turbo Nozzle Attachment

    £99.95 Inc VAT

    [£83.29 Ex VAT]

    Add

  • Hypo SuperFoam+ (Patio Cleaner) Softwash Solution

    Hypo SuperFoam+ (Patio Cleaner) Softwash Solution

    £39.99 Inc VAT

    [£33.33 Ex VAT]

    Add

  • Kiam SurfacePro 18 Rotary Floor Cleaning Tool Steel Flat Surface Cleaner 18"

    Kiam SurfacePro 18 Rotary Floor Cleaning Tool Steel Flat Surface Cleaner 18"

    Was £599.00

    £399.00 Inc VAT

    [£332.50 Ex VAT]

  • Kiam SurfacePro 21 Rotary Floor Cleaning Tool Steel Flat Surface Cleaner 21"

    Kiam SurfacePro 21 Rotary Floor Cleaning Tool Steel Flat Surface Cleaner 21"

    Was £799.00

    £469.00 Inc VAT

    [£390.83 Ex VAT]

  • Kiam SurfacePro 21 Dual Trigger Steel Rotary Floor Cleaning Tool & Wash Broom 21"

    Kiam SurfacePro 21 Dual Trigger Steel Rotary Floor Cleaning Tool & Wash Broom 21"

    Was £849.00

    £675.00 Inc VAT

    [£562.50 Ex VAT]

  • AquaReach Pro 5.4m (18') LIGHTWEIGHT Telescopic Lance with FREE HARNESS

    AquaReach Pro 5.4m (18') LIGHTWEIGHT Telescopic Lance with FREE HARNESS

    £159.95 Inc VAT

    [£133.29 Ex VAT]

  • IBC Water Tank Container (1000L)

    IBC Water Tank Container (1000L)

    £155.00 Inc VAT

    [£129.17 Ex VAT]

  • Pressure Washer Lance 19.5" (500mm) M22 Screw Thread - 1/4" Quick Release

    Pressure Washer Lance 19.5" (500mm) M22 Screw Thread - 1/4" Quick Release

    £26.45 Inc VAT

    [£22.04 Ex VAT]

  • Pressure Washer Lance 36" (900mm) M22 Screw Thread - 1/4" Quick Release

    Pressure Washer Lance 36" (900mm) M22 Screw Thread - 1/4" Quick Release

    £29.95 Inc VAT

    [£24.96 Ex VAT]

  • Pressure Washer Lance 60" 1500mm M22 Screw Thread - 1/4" Quick Release

    Pressure Washer Lance 60" 1500mm M22 Screw Thread - 1/4" Quick Release

    £42.95 Inc VAT

    [£35.79 Ex VAT]

  • Pressure Washer Lance 80" 2000mm M22 Screw Thread - 1/4" Quick Release

    Pressure Washer Lance 80" 2000mm M22 Screw Thread - 1/4" Quick Release

    £47.99 Inc VAT

    [£39.99 Ex VAT]

  • High Pressure Hose Reel (100ft / 30m) - Fixed base

    High Pressure Hose Reel (100ft / 30m) - Fixed base

    Was £139.99

    £129.95 Inc VAT

    [£108.29 Ex VAT]

  • High Pressure Hose Reel (200ft / 60m) - Fixed base

    High Pressure Hose Reel (200ft / 60m) - Fixed base

    Was £194.99

    £159.95 Inc VAT

    [£133.29 Ex VAT]