STIHL 017 018 021 023 025 MS170 MS180 MS210 MS230 MS250 Oil Drive Pump

Oil drive pump fits Stihl 017, 018, 021, 023, 025, MS170, MS180, MS210, MS230 and MS250 chainsaws. The oil pump is driven off the crankshaft and delivers a continuous supply of bar and chain oil to the guide bar groove during cutting. This single pump body covers a wide range of Stihl consumer and semi-professional models, from the compact MS170/MS180 through to the MS210/MS230/MS250 series. A dry guide bar, visible oil starvation on the cutting chain, or oil pooling beneath the saw from a cracked pump body all point to a failed pump. Left unaddressed, oil starvation accelerates wear on the bar rails, drive links and sprocket nose. Fitting a replacement restores full chain lubrication and protects the bar and chain from heat damage.

Fits the following Stihl models:

• Stihl 017
• Stihl 018
• Stihl 021
• Stihl 023
• Stihl 025
• Stihl MS170
• Stihl MS180
• Stihl MS210
• Stihl MS230
• Stihl MS250