Trimmer
Stihl FS 38
2-Stroke
The Stihl FS 38 is a 27.2cc <!-- verify: stihlusa.com --> 2-stroke curved-shaft grass trimmer and the entry point to Stihl's FS consumer trimmer range. Designed for residential lawn edging and light grass trimming, it is not suited for heavy brush or commercial use. The FS 38 uses a bump-feed head accepting .080" round line and runs a Zama carburetor. Common failure modes are primer bulb cracking and fuel line deterioration from ethanol exposure. The FS 38 shares its engine architecture and air filter design with the FS 40 and FS 45, giving it good parts availability.
Stihl FS 38 quick specs
- Equipment
- Trimmer · 2-Stroke
- Covered Parts
- Spark Plug, Air Filter, Fuel Filter, Carburetor, Primer Bulb, Fuel Line Kit, Trimmer Head, Trimmer Line
- OEM References
- 7
- Model Family
- FS 38, FS 40, FS 45, FS 55
Spark Plug
OEM0000 400 7000(0.7mm gap)
| Brand | Part # | |
|---|---|---|
| NGK | BPMR7A | Buy on Amazon → |
| Champion | RCJ6Y | Buy on Amazon → |
Air Filter
OEM4140 124 2800Also fits FS 45, FS 46, FS 55, HS 45, KM 55
| Brand | Part # |
|---|
Fuel Filter
OEM0000 350 35023/16" ID in-tank filter; also fits FS 45, FS 46, FS 55
| Brand | Part # |
|---|
Carburetor
OEM4140 120 0610Zama C1Q-S58B; also fits FS 45, FS 46
| Brand | Part # | |
|---|---|---|
| Zama | C1Q-S58B | Buy on Amazon → |
Primer Bulb
OEM4226 121 2700
| Brand | Part # | |
|---|---|---|
| Zama | 0057004 | Buy on Amazon → |
| Hipa | G002-H | Buy on Amazon → |
Fuel Line Kit
OEM4140 358 7702Includes fuel pickup line and return line; also fits FS 45, FS 55
| Brand | Part # | |
|---|---|---|
| Hipa | 4140 358 7702 | Buy on Amazon → |
Trimmer Head
OEM4006 710 2126AutoCut C 6-2; bump-feed; .080" line
| Brand | Part # | |
|---|---|---|
| Oregon | 55-265 | Buy on Amazon → |
Trimmer Line
OEM(.080" diameter, round)
| Brand | Part # | |
|---|---|---|
| Oregon | 22-895 | Buy on Amazon → |
| Arnold | 490-080-0100 | Buy on Amazon → |