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MS 500i Petrol Chainsaw
SKU: Stihl | MS-1147 200 0000
Key Features
- World's first chainsaw with electronically controlled fuel injection
- 79.2cc engine, 5.0kW (6.8hp) at 6.3kg powerhead weight
- Power-to-weight ratio of 1.24 kg/kW
- Free matching spare chain included with this chainsaw
STIHL Approved Dealer
As a STIHL Approved Dealer, we supply genuine UK-spec machines with full manufacturer warranty, professional preparation, and expert aftersales support.
A free spare chain with this machine
Worth £20-£40 depending on model. Your matching chain is added to your basket automatically.
£75 cashback from STIHL
Buy between 1 September and 18 December 2026, then claim from STIHL within 30 days. How to claim
- Regular price
- €1.551,95
- Sale price
- €1.551,95 Ex VAT
- Regular price
-
Seaton Burn, Newcastle upon Tyne,
Tyne and Wear, NE13 6DA
Worldwide Shipping from the UK
Trusted UK Arborist Retailer
30-Day Easy Returns
Discount codes can't be applied to STIHL machines and batteries.
Product information & specifications
STIHL MS 500i Petrol Chainsaw - The World's First Fuel-Injected Professional Chainsaw
The STIHL MS 500i is the world's first production chainsaw with electronically controlled fuel injection (STIHL Injection), delivering a 79.2cc engine producing 5.0kW (6.8hp) at just 6.3kg powerhead weight — a power-to-weight ratio of 1.24 kg/kW. Designed for professional forestry contractors and tree surgeons tackling felling, bucking and delimbing, it adapts fuel delivery and ignition timing automatically to environmental conditions for consistent performance at any altitude or temperature.
Key Features & Benefits
- STIHL Injection (i) — electronically controlled fuel metering, the first in any production chainsaw, for instant throttle response and consistent power regardless of temperature, altitude or fuel variance
- 5.0kW / 6.8hp engine — 79.2cc displacement delivering an outstanding 1.24 kg/kW power-to-weight ratio
- 6.3kg powerhead weight — lightweight for its class, reducing fatigue during extended felling and bucking operations
- Bar compatibility 40-90cm (16-36") — suited to a wide range of timber diameters from processing to large-scale felling
- HD2 air filter — pre-separation and oil/water-repellent material for extended engine protection in dusty forestry environments
- Ematic lubrication system — precise oil delivery reduces bar oil consumption by up to 50%
- ElastoStart and anti-vibration system — reduced pull resistance on start, advanced vibration dampening for all-day comfort
- Tool-free fuel and oil caps for fast refuelling in the field
- Side-mounted chain tensioning for quick adjustments on site
Why Choose the STIHL MS 500i?
The MS 500i sits in the upper tier of the STIHL professional forestry range — above the MS 462 C-M and MS 261 C-M in both displacement and output. Its fuel injection system is what sets it apart from every other production chainsaw: instant throttle response with no flat spots, reliable cold-weather starting, and consistent power at altitude. For forestry contractors working long shifts across varied timber and terrain, the combination of 5.0kW output at 6.3kg powerhead weight and the 40-90cm bar range makes it exceptionally versatile. The MS 500i W variant adds heated handles for cold-climate operations.
Pairs Well With
- Replacement Chainsaw Chains — ⅜" RS3 chains compatible with the MS 500i
- Chainsaw Guide Bars — 40-90cm Rollomatic and Duromatic options for this model
- 2-Stroke Oil and Fuel — STIHL HP Ultra and MotoMix for fuel-injected engines
- Chain Sharpening Tools — filing kits and bench sharpeners for ⅜" RS chain
- Forestry PPE — chainsaw trousers, helmets, gloves and boots for compliant felling work
Also Known As
Also searched for as: STIHL MS500i, fuel-injected STIHL chainsaw, STIHL Injection chainsaw, MS 500i forestry saw.
FAQs
What makes the MS 500i different from a standard carburettor chainsaw?
It uses electronically controlled fuel injection rather than a carburettor, delivering instant throttle response, consistent power across all temperatures and altitudes, and removing the need for carburettor adjustment in the field.
What is the difference between the MS 500i and the MS 500i W?
The MS 500i W is identical in engine specification but adds electrically heated handles for cold-weather operation. Both share the same 79.2cc fuel-injected engine and 5.0kW output.
What bar lengths are compatible with the MS 500i?
STIHL recommend 40-90cm (16-36") guide bars, using ⅜" RS3 chain. Gustharts stocks compatible bars and chains.
How does the MS 500i compare to the MS 462 C-M?
The MS 500i is larger at 79.2cc vs 72.2cc, produces more power (5.0kW vs 4.4kW), and adds fuel injection for instant response. The MS 462 C-M is lighter at 6kg vs 6.3kg and better suited where weight is the primary concern.
Is the MS 500i suitable for chainsaw milling?
Yes — its wide bar compatibility (up to 90cm) and high torque output make it well suited to Alaskan mill setups for processing large-diameter logs.
| Displacement | 79.2cc |
|---|---|
| Power Output | 5.0 kW (6.8 hp) |
| Power-to-weight ratio | 1.24 kg/kW |
| Powerhead Weight | 6.3 kg |
| Bar Length | 50 cm (20") | 63 cm (25") |
| Saw chain pitch | 3/8" |
| Fuel Tank Capacity | 785 ml |
| Oil Tank Capacity | 325 ml |
| Length with bumper strike | 468 mm |
| Sound pressure level | 106 dB(A) |
| Sound power level | 117 dB(A) |
| Vibration values left/right | 4.2/4 m/s² |
| CO2 | 706 g/kWh |
Downloads
MS 500i ManualSTIHL MS 500i Petrol Chainsaw - The World's First Fuel-Injected Professional Chainsaw
The STIHL MS 500i is the world's first production chainsaw with electronically controlled fuel injection (STIHL Injection), delivering a 79.2cc engine producing 5.0kW (6.8hp) at just 6.3kg powerhead weight — a power-to-weight ratio of 1.24 kg/kW. Designed for professional forestry contractors and tree surgeons tackling felling, bucking and delimbing, it adapts fuel delivery and ignition timing automatically to environmental conditions for consistent performance at any altitude or temperature.
Key Features & Benefits
- STIHL Injection (i) — electronically controlled fuel metering, the first in any production chainsaw, for instant throttle response and consistent power regardless of temperature, altitude or fuel variance
- 5.0kW / 6.8hp engine — 79.2cc displacement delivering an outstanding 1.24 kg/kW power-to-weight ratio
- 6.3kg powerhead weight — lightweight for its class, reducing fatigue during extended felling and bucking operations
- Bar compatibility 40-90cm (16-36") — suited to a wide range of timber diameters from processing to large-scale felling
- HD2 air filter — pre-separation and oil/water-repellent material for extended engine protection in dusty forestry environments
- Ematic lubrication system — precise oil delivery reduces bar oil consumption by up to 50%
- ElastoStart and anti-vibration system — reduced pull resistance on start, advanced vibration dampening for all-day comfort
- Tool-free fuel and oil caps for fast refuelling in the field
- Side-mounted chain tensioning for quick adjustments on site
Why Choose the STIHL MS 500i?
The MS 500i sits in the upper tier of the STIHL professional forestry range — above the MS 462 C-M and MS 261 C-M in both displacement and output. Its fuel injection system is what sets it apart from every other production chainsaw: instant throttle response with no flat spots, reliable cold-weather starting, and consistent power at altitude. For forestry contractors working long shifts across varied timber and terrain, the combination of 5.0kW output at 6.3kg powerhead weight and the 40-90cm bar range makes it exceptionally versatile. The MS 500i W variant adds heated handles for cold-climate operations.
Pairs Well With
- Replacement Chainsaw Chains — ⅜" RS3 chains compatible with the MS 500i
- Chainsaw Guide Bars — 40-90cm Rollomatic and Duromatic options for this model
- 2-Stroke Oil and Fuel — STIHL HP Ultra and MotoMix for fuel-injected engines
- Chain Sharpening Tools — filing kits and bench sharpeners for ⅜" RS chain
- Forestry PPE — chainsaw trousers, helmets, gloves and boots for compliant felling work
Also Known As
Also searched for as: STIHL MS500i, fuel-injected STIHL chainsaw, STIHL Injection chainsaw, MS 500i forestry saw.
FAQs
What makes the MS 500i different from a standard carburettor chainsaw?
It uses electronically controlled fuel injection rather than a carburettor, delivering instant throttle response, consistent power across all temperatures and altitudes, and removing the need for carburettor adjustment in the field.
What is the difference between the MS 500i and the MS 500i W?
The MS 500i W is identical in engine specification but adds electrically heated handles for cold-weather operation. Both share the same 79.2cc fuel-injected engine and 5.0kW output.
What bar lengths are compatible with the MS 500i?
STIHL recommend 40-90cm (16-36") guide bars, using ⅜" RS3 chain. Gustharts stocks compatible bars and chains.
How does the MS 500i compare to the MS 462 C-M?
The MS 500i is larger at 79.2cc vs 72.2cc, produces more power (5.0kW vs 4.4kW), and adds fuel injection for instant response. The MS 462 C-M is lighter at 6kg vs 6.3kg and better suited where weight is the primary concern.
Is the MS 500i suitable for chainsaw milling?
Yes — its wide bar compatibility (up to 90cm) and high torque output make it well suited to Alaskan mill setups for processing large-diameter logs.
| Displacement | 79.2cc |
|---|---|
| Power Output | 5.0 kW (6.8 hp) |
| Power-to-weight ratio | 1.24 kg/kW |
| Powerhead Weight | 6.3 kg |
| Bar Length | 50 cm (20") | 63 cm (25") |
| Saw chain pitch | 3/8" |
| Fuel Tank Capacity | 785 ml |
| Oil Tank Capacity | 325 ml |
| Length with bumper strike | 468 mm |
| Sound pressure level | 106 dB(A) |
| Sound power level | 117 dB(A) |
| Vibration values left/right | 4.2/4 m/s² |
| CO2 | 706 g/kWh |
Downloads
MS 500i ManualSTIHL Warranty
STIHL offer a 1 year professional warranty or 2 year domestic warranty with all of their machines.
The following exceptions apply:
- AK System, AS System and AI Line cordless products aren't covered under warranty when used by professionals
- AP System machines, batteries and chargers - 2 year professional warranty
- Pressure washers - 2 year professional warranty or 3 year domestic warranty
- Mowers, tillers, shredders, scarifiers & iMOW machines - See STIHL's website here
Extend your Stihl warranty by an additional year when purchasing a STIHL Smart Connector with selected machinery from the petrol and cordless range. Extends your petrol warranty from 1 to 2 years AND 2 to 3 years on select cordless tools.
Extend your warranty with MotoMix. Domestic customers can extend the warranty on selected machines from 2 to 3 years when buying 5 litres of STIHL MotoMix Fuel with the machine. STIHL requires the extension to be registered at the point of sale by the STIHL Approved Dealer.
STIHL offer a 1 year professional warranty or 2 year domestic warranty with all of their machines.
The following exceptions apply:
- AK System, AS System and AI Line cordless products aren't covered under warranty when used by professionals
- AP System machines, batteries and chargers - 2 year professional warranty
- Pressure washers - 2 year professional warranty or 3 year domestic warranty
- Mowers, tillers, shredders, scarifiers & iMOW machines - See STIHL's website here
Extend your Stihl warranty by an additional year when purchasing a STIHL Smart Connector with selected machinery from the petrol and cordless range. Extends your petrol warranty from 1 to 2 years AND 2 to 3 years on select cordless tools.
Extend your warranty with MotoMix. Domestic customers can extend the warranty on selected machines from 2 to 3 years when buying 5 litres of STIHL MotoMix Fuel with the machine. STIHL requires the extension to be registered at the point of sale by the STIHL Approved Dealer.
Delivery Information
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Standard Delivery
applies to eligible UK orders over £75 ex VAT.
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00 - Estimated delivery: 2–7 working days
- Rest of the World from £12.00 - Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Standard Delivery
applies to eligible UK orders over £75 ex VAT.
Estimated delivery: 2–4 working days
- UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £6.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00 - Estimated delivery: 2–7 working days
- Rest of the World from £12.00 - Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.
