STIHL genuine air filter for HS81, HS86 hedgetrimmers, maintaining peak engine performance.
    STIHL genuine air filter for HS81, HS86 hedgetrimmers, maintaining peak engine performance.
STIHL genuine air filter for HS81, HS86 hedgetrimmers, maintaining peak engine performance.

Air Filter for Stihl HS81, HS86 Hedgetrimmer

SKU: Stihl | ST-4237 120 1800

Regular price
£2.30 Ex VAT
£2.03 £2.30 Ex VAT
Shipping calculated at checkout.
Regular price
£2.30 Ex VAT
£2.76 Inc VAT
RRP: £2.03 Ex VAT
Sale price
£2.03 £2.30 Ex VAT
Regular price
£2.44 £2.76 Inc VAT
Was £2.03 Ex VAT

In Stock

or 4 interest-free
payments of £0.69 with

Free Standard UK Delivery Over £75 +VAT

Easy Returns

Product information & specifications

Is your Stihl HS81 or HS86 hedgetrimmer not performing at its peak? A clogged air filter could be the culprit.  A fresh air filter is essential for maintaining optimal engine performance, reducing emissions, and extending the life of your Stihl trimmer.

This high-quality air filter is specifically designed for the Stihl HS81 and HS86 hedgetrimmers.  It features a precisely engineered paper element that effectively traps dust, dirt, and debris before they can enter the engine. This protects internal components from wear and tear, ensuring smooth operation and consistent power.


Genuine Stihl Part.
OEM No. 4237 120 1800.

Suitable for the Following Applications:
HS81R, HS81RC, HS81T, HS81TC, HS86R, HS86T

Is your Stihl HS81 or HS86 hedgetrimmer not performing at its peak? A clogged air filter could be the culprit.  A fresh air filter is essential for maintaining optimal engine performance, reducing emissions, and extending the life of your Stihl trimmer.

This high-quality air filter is specifically designed for the Stihl HS81 and HS86 hedgetrimmers.  It features a precisely engineered paper element that effectively traps dust, dirt, and debris before they can enter the engine. This protects internal components from wear and tear, ensuring smooth operation and consistent power.


Genuine Stihl Part.
OEM No. 4237 120 1800.

Suitable for the Following Applications:
HS81R, HS81RC, HS81T, HS81TC, HS86R, HS86T

Delivery & Returns

Christmas Returns (Extended)

To give you extra peace of mind over Christmas:

  • Orders placed between 10 October and 24 December 2025 can be returned up to 26 January 2026 (excluding Sale items)

  • Orders placed from 25 December 2025 onwards are covered by our standard 30-day return policy

UK Delivery

Fast, reliable delivery from our UK warehouse.

  • FREE UK Delivery on orders over £50 + VAT
    Estimated delivery: 2–4 working days

  • UK Standard Delivery from £3.60 + VAT
    Estimated delivery: 2–4 working days


  • Next Working Day Delivery£5.00 + 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.

Christmas Returns (Extended)

To give you extra peace of mind over Christmas:

  • Orders placed between 10 October and 24 December 2025 can be returned up to 26 January 2026 (excluding Sale items)

  • Orders placed from 25 December 2025 onwards are covered by our standard 30-day return policy

UK Delivery

Fast, reliable delivery from our UK warehouse.

  • FREE UK Delivery on orders over £50 + VAT
    Estimated delivery: 2–4 working days

  • UK Standard Delivery from £3.60 + VAT
    Estimated delivery: 2–4 working days


  • Next Working Day Delivery£5.00 + 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.

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