Description
Overview:
This Air Filter Housing/Back Box is a Genuine Stihl part designed to restore proper air intake sealing and filtration on selected Stihl handheld machines. Moulded from durable black plastic, it forms the rear housing for the air filter element and interfaces cleanly with the carburettor intake to help keep dust and debris out of the engine. It is suitable for a wide range of brushcutters, Kombi engines, hedge trimmers and related tools, including the KM85 and HL75. Replacing a cracked or warped housing helps maintain reliable starting, stable idle and consistent power output. OEM reference: 4137 140 2802. Built to Stihl's specification for fit and durability, it is a practical service replacement to keep professional and domestic machines working efficiently.
Key Features:
- Genuine Stihl part for assured compatibility and fit
- OEM number 4137 140 2802 for easy identification
- Robust moulded plastic resists knocks, vibration, fuel mist and heat
- Restores a proper seal around the air filter to reduce dust ingress
- Helps maintain airflow, engine performance and service life
- Precise seating for the filter element to prevent bypass leaks
- Straightforward swap using existing fixings and common hand tools
- Suitable for demanding use in landscaping, arborist and grounds care work
Typical Applications:
Replacement of damaged or worn air filter back boxes during routine servicing, after impact damage, or where dust has compromised sealing. Helps protect engines used for trimming, brush cutting, hedge cutting and pole pruning in gardens, estates, commercial grounds, and site maintenance.
Also known as:
Air box, air cleaner housing, filter back cover, filter case, rear filter housing, air intake box, air filter back plate.
Fits Models:
FC 73, FC 75, FC 85, FC73, FC75, FC85, FH75, FR85, FR85T, FS75, FS80, FS80R, FS85, FS85R, FS85RX, FS85T, HL75, HL75K, HT70, HT70K, HT75, KA85R, KA85R Attachment, KM85, KM85R, KR85, KR85 Attachment, KW 85, KW85, PC70, PC75, SP80, SP80K, SP81, SP85, SP85K
Product Specifications
| L&S Part No. | 4137 140 2802 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41371402802 |
| Unit of Sale | 1 |
| Applications | FC 73, FC 75, FC 85, FC73, FC75, FC85, FH75, FR85, FR85T, FS75, FS80, FS80R, FS85, FS85R, FS85RX, FS85T, HL75, HL75K, HT70, HT70K, HT75, KA85R, KA85R Attachment, KM85, KM85R, KR85, KR85 Attachment, KW 85, KW85, PC70, PC75, SP80, SP80K, SP81, SP85, SP85K |
| Machine Type | Kombi Engines, Kombi Tools, Pole Pruners, Brushcutters, Edging Trowel, Hedgetrimmers, Power Tool Attachments |
| Fits Models | FS75, FS80, FS85 | FR85T, FR85 | HT70, HT70K, HT75 | KM85, KM85R | KA85R Attachment | KR85 Attachment | KW 85 | FC 73 | FC 75 | FC 85 | HL75, HL75K | SP 85 |


