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- 1141 140 4400 – STIHL HD2 Air Filter (Genuine OEM Part)
Description
1141 140 4400 – STIHL HD2 Air Filter (Genuine OEM Part)
The STIHL 1141 140 4400 is a genuine OEM HD2 air filter designed to provide superior engine protection by capturing fine dust and debris while maintaining optimal airflow on compatible STIHL chainsaws. The HD2 (Heavy Duty 2) filter technology offers improved filtration efficiency and extended service intervals compared to standard fleece filters, making it ideal for demanding cutting environments.
Manufactured to STIHL’s original equipment specifications, this HD2 air filter is constructed from durable, oil- and water-resistant material that can be cleaned and reused. Using a genuine STIHL HD2 air filter helps preserve engine performance, fuel efficiency, and long-term reliability.
Product Details
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Manufacturer Part Number: 1141 140 4400
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Brand: STIHL
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Part Type: Air Filter
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Filter Type: HD2 (Heavy Duty)
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System: Air intake system
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Function: Filters intake air and protects the engine
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Material: High-performance HD2 synthetic filter material
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OEM Status: Genuine STIHL OEM replacement
Function
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Traps fine dust, dirt, and debris before air enters the engine
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Maintains high airflow for efficient combustion
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Extends engine life by reducing internal wear
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Supports longer service intervals compared to standard filters
Compatible With STIHL Chainsaws
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MS 271 FarmBoss (Air baffle, Carburetor bracket, Shroud)
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MS 291 C-BEQ (Air baffle, Carburetor bracket, Shroud)
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MS 261 C-MQ (Tank housing)
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MS 261 C-M (Tank housing)
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MS 261 C-Q (Tank housing)
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MS 261 (Tank housing)
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MS 271 (Tank housing)
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MS 291 (Tank housing)
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MS 241 C-M (Carburetor bracket, Air filter)
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MS 311 (Tank housing, Throttle control)
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MS 362 / MS 362-R / MS 362-VW / MS 362 C-M / MS 362 C-MQ / MS 362 C-M R / MS 362 C-Q
(Ignition system – production from 14.2017) -
MS 391 (Ignition system, Wiring harness)
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MS 400 C-M (Crankcase, Cylinder, Muffler)
How It’s Used
This HD2 air filter installs in the air filter housing ahead of the carburetor. It cleans incoming air before it enters the engine, ensuring efficient combustion and protecting internal components from contamination.
The HD2 filter can be cleaned with warm soapy water or STIHL-approved cleaner and reused, extending service life.
Suggested Maintenance
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Inspect the filter regularly, especially in dusty conditions
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Clean the HD2 filter as recommended by STIHL
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Allow the filter to dry completely before reinstalling
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Replace the filter if damaged or excessively worn
The STIHL 1141 140 4400 HD2 Air Filter is used in OEM-specified air intake system applications where high filtration efficiency, durability, and reliable engine protection are essential.
Additional Information
Shipping & Return
Reviews
R
Russell Feagley Very good quality filter. Service was spit on. Delivery on time. Packaging was superior.
R
Russell Feagley Very good quality filter. Service was spit on. Delivery on time. Packaging was superior.
