How do I confirm pilotpart451923-9379585491192 fits my machine?

Compare the OEM or reference part number, machine model, engine model, and serial number. You can also submit a fitment inquiry before ordering.

In Stock

Gear Head 4128-640-0101 for Stihl Trimmer FS160 FS180 FS220 FS280 FS290 FS300 FS310 FS350 FS400 FS450 FS480

For Stihl Bearing, Gear & Shaft

Bearing, Gear & Shaft 4128-640-0101 for Stihl

Q: What part numbers are associated with this Bearing, Gear & Shaft?

4128-640-0101, FS180, FS220, FS280, FS290, FS300, FS310, FS350, FS400, FS450, FS480

OEM / REF: 4128-640-0101SKU: pilotpart451923-9379585491192

Gear Head 4128-640-0101 for Stihl Trimmer FS160 FS180 FS220 FS280 FS290 FS300 FS310 FS350 FS400 FS450 FS480 is a Bearing, Gear & Shaft replacement part for Stihl Transmission & Undercarriage Parts, categorized under Transmission & Undercarriage Parts > Bearing, Gear & Shaft. Use OEM part number 4128-640-0101 and con...

Stock: In stock
Condition: New
Fitment: Stihl Transmission & Undercarriage Parts
Category: Bearing, Gear & Shaft

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$33.00USD/EA

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Oct 22 – Oct 29
10	Oct 20 – Oct 27
50	Oct 18 – Oct 25

Estimates from today; confirm exact lead time before payment.

Quantity

Confirm fitment before ordering →

Lead times can vary by freight route and customs. Contact support for expedited shipping.

Bearing, Gear & Shaft Description

This Bearing, Gear & Shaft is indexed for Stihl s: Fit For Stihl Trimmer: FS160, FS180, FS220, FS280, FS290, FS300, FS310, FS350, FS400, FS450, FS480, FS 400-K, FS 400-L, FS 310-Z, FS 380, FS 450-K, FS 450-KZ, FS 450-Z, FS 450-L, FS 480-K, FS 480-KZ, FS 480-KWZ, FS 480-KW, FS 480-W, FS 480-Z, FS 480-L. Compare reference number 4128-640-0101 against the label on your existing Stihl component before ordering.

Additional cross references on file: FS180, FS220, FS280. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

4128-640-0101 FS180 FS220 FS280 FS290 FS300 FS310 FS350 FS400 FS450 FS480

Applications

Stihl s: Fit For Stihl Trimmer: FS160, FS180, FS220, FS280, FS290, FS300, FS310, FS350, FS400, FS450, FS480, FS 400-K, FS 400-L, FS 310-Z, FS 380, FS 450-K, FS 450-KZ, FS 450-Z, FS 450-L, FS 480-K, FS 480-KZ, FS 480-KWZ, FS 480-KW, FS 480-W, FS 480-Z, FS 480-L

Fitment Notes

Brand or application signal: Stihl Transmission & Undercarriage Parts
Product family: Bearing, Gear & Shaft
System category: Transmission & Undercarriage Parts > Transmission Parts > Bearing, Gear & Shaft
Recommended verification: OEM number, engine model, serial number, old part photos, and dimensions.

Shipping & Returns

Availability: InStock
Shipping: Shipping quotes can be confirmed before payment for heavy or urgent orders.
Returns: Returns are easier when fitment is confirmed before ordering.
B2B support: Bulk, fleet, and repair-shop requests can be handled through the inquiry form.

Frequently Asked Questions

How do I confirm this part fits my machine?

Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.

Can I order if my part number is not listed?

Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.

Is this an OEM part?

Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.