The Genuine STIHL 1144 350 0801 Tank Housing is the complete rear chassis assembly for selected STIHL MS 661 professional chainsaws. This heavy-duty OEM component forms the main structural body of the saw, incorporating the fuel and chain oil tanks while providing mounting points for the rear handle, anti-vibration system, throttle controls and engine assembly.
Manufactured from impact-resistant, fuel-resistant polymer, this genuine STIHL tank housing restores the structural integrity and safe operation of your chainsaw following crash damage, excessive wear or cracking. It is an exact factory replacement, ensuring perfect alignment and long-lasting durability in demanding forestry and arborist applications.
Exact Model Fitment
Fits the following STIHL models:
- STIHL MS 661
- STIHL MS 661 Magnum
- STIHL MS 661 C-M
- STIHL MS 661 C-M RZ Magnum
- STIHL MS 661 C-M Z Magnum
Note: STIHL produced several versions of the MS 661, and different tank housings are used depending on the model variant. Always confirm your machine's serial number or compare the original part number before ordering, as variants such as 1144 350 0824 and 1144 350 0825 are fitted to other MS 661 configurations - contact us if you are unsure