Skip to product information
1 of 11

Kiam Products 21LPM Petrol Pressure Washer – Kiam KM3700PHI HIFLOW | 14HP Jet Cleaner

  • 3000 PSI / 200 bar
Regular price £1,079.17 GBP £1,295.00 GBP ex VAT inc VAT
Sale price £1,079.17 GBP £1,295.00 GBP Regular price £0.00 GBP £0.00 GBP ex VAT inc VAT

Delivery

Estimated delivery: 1–2 days

In stock and available for delivery. Delivery options and charges are shown at checkout.

Collect in store

Within 1 hour

During opening hours, for quantities held in store. Wait for your ready-to-collect confirmation.

Free collection · Dronfield
Need a hand choosing?

CCM CUSTOMER SUPPORT

Ask our team

Kiam Products 21LPM Petrol Pressure Washer – Kiam KM3700PHI HIFLOW | 14HP Jet Cleaner

Tell us what you need help with. We’ll include this product with your enquiry.

We’ll use these details to respond to your enquiry.

About this product

HIGH-FLOW ELITE • TANK-FEED READY

KM3700PHI — 21 LPM / 3000–3700 PSI Petrol Pressure Washer

14 HP 4-stroke + HI-FLOW pump for rapid rinsing, deep cleaning and reliable tank/butt feed.

MAX PRESSURE 3700 PSI / 255 bar FLOW RATE 21 LPM (HI-FLOW) ENGINE POWER 14 HP 4-Stroke

Static Source Ready

Draw from tanks/butts/mains with 3 m suction hose & inline filter.

Engine Protection

Low-oil shutdown safeguards for long-term reliability.

Quick-Swap Control

5 quick-release nozzles for instant mode changes.

Why 21 LPM Changes Everything

  • Faster rinse-off — flush mud, moss & slurry faster than standard flows.
  • Wider coverage — chew through large patios, driveways & yards.
  • Better chem draw with downstream injection setups.
  • Tough steel chassis with anti-vibration mounts.

Working pressure: 3000 PSI / 200 bar (Max 3700 PSI / 255 bar ).

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

Best-Fit Usage


Light wash Domestic patios Driveways Heavy rinse

Driveways & Yards

Cut project times with high-volume rinsing.

Plant & Machinery

Shift baked-on debris fast after a chem dwell.

Pre-Rinse Pro

Perfect pre-rinse for rotary surface cleaners.

Key Features

  • HI-FLOW pump tuned for volume & longevity.
  • Anti-vibration shock absorbers on heavy steel frame.
  • Includes 10 m HP hose, pro trigger gun & steel lance.
  • 5 quick-release nozzles: 0°, 15°, 25°, 40°, soap.
  • Low-oil shutdown protects your engine automatically.
  • Tank-feed ready: 3 m suction hose + inline filter included.

In the Box

  • KM3700PHI petrol pressure washer unit
  • 10 m high-pressure hose
  • Professional trigger gun & steel lance
  • 5 × steel quick-release spray nozzles
  • 3 m water suction hose with inline filter
  • Tool kit & user manual

Pressure gauge sold separately.

More info & manuals: Instruction Manuals

Start a Driveway Business

Read the guide

Cleaning Tutorials

Explore articles

Petrol vs Diesel

Compare options

High-flow. High-pressure. High-productivity. — Upgrade to the KM3700PHI today.

Specifications

Model KIAM KM3700PHI
Max Pressure 3700 PSI / 255 bar
Working Pressure 3000 PSI / 200 bar
Rated Flow 21 L/min
Engine 14 HP KIAM 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 70 kg

Specifications

Engine
14 HP KIAM OHV 4-stroke (air-cooled)
Weight
70 kg
Fuel Type
Unleaded petrol
Max Torque
26.5 N·m
Rated Flow
21 L/min
Displacement
420 cc
Engine Speed
3400 rpm
Max Pressure
3700 PSI / 255 bar
Dimensions (L×W×H)
79 × 50 × 60 cm
Pressure
3000 PSI / 200 bar
Model
KIAM KM3700PHI

Downloads

Finance available — from £-- + VAT/week.