Description
Overview:
The Impulse Hose Assembly for Stihl TS400 is a genuine Stihl part designed to carry crankcase pressure pulses to the carburettor's fuel pump circuit, keeping your saw running smoothly under load. Made from durable, fuel- and oil-resistant elastomer, it provides a secure, airtight connection between engine components and resists cracking from heat and vibration. As an OEM replacement for Part No. 4223 141 8600, it offers the correct moulded shape and length for a precise fit on Stihl cut-off saws. It is ideal for routine maintenance or repair where the original hose has hardened, split, or lost flexibility. Suitable for popular models such as the TS400 and TS700, it helps restore reliable starting, stable idle, and consistent throttle response.
Key Features:
- Genuine Stihl part for correct fit and performance (OEM 4223 141 8600)
- Robust, fuel- and oil-resistant construction for long service life
- Moulded to the right shape and length for proper routing and sealing
- Helps restore carburettor pulse operation for smoother idle and acceleration
- Direct replacement with no modifications needed
- Designed to withstand heat, vibration, and exposure to petrol mix
- Supports consistent performance in demanding cutting conditions
- Suitable for scheduled maintenance or fault rectification
- Compatible with TS400, TS700, and TS800 cut-off saws
- Precision engineered to Stihl specifications for reliable results
Typical Applications:
Used during servicing or repairs of Stihl cut-off saws to replace aged or damaged impulse hoses that cause hard starting, erratic idle, bogging, or poor throttle pickup. Commonly fitted when overhauling the fuel system, rebuilding the carburettor, or chasing vacuum leaks to restore dependable performance on site or in the workshop.
Also known as:
Impulse line, vacuum line, carburettor pulse hose, crankcase impulse tube, pulse line, engine vacuum tube, carb pulse hose. These terms describe the same function: carrying pressure pulses from the crankcase to operate the carburettor's fuel pump.
Fits Models:
TS400, TS700, TS800
Alternate Part Numbers:
4223-141-8600, 42231418600
