STIHL 0000 350 6201 Fuel Pump Primer Bulb | OEM

Product Number: 0000 350 6201

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Product Brand: Stihl
Product Type: Parts

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STIHL 0000 350 6201 OEM Fuel Pump / Primer Bulb

The STIHL 0000 350 6201 Fuel Pump, commonly called a primer bulb, is a genuine OEM STIHL replacement part used on select STIHL chainsaws, trimmers, hedge trimmers, pole pruners, Kombi engines, augers, and specialty equipment. This part helps prime the fuel system for easier starting and proper fuel delivery.

STIHL 0000 350 6201 is listed across many STIHL model families, including select MS, FS, HS, HL, HT, KM, BT, and SP series applications where STIHL specifies this part number.

Always verify your complete STIHL model number, serial number, original primer bulb part number, and parts diagram before ordering. Fuel system parts can vary by equipment version, serial-number range, and production date.


Product Details

Brand STIHL
Part Number 0000 350 6201
Product Type Fuel Pump / Primer Bulb
Common System Fuel system / carburetor priming system
Compatible Equipment Type Select STIHL chainsaws, trimmers, hedge trimmers, pole pruners, Kombi engines, augers, and specialty equipment
Common Model Families MS, FS, HS, HL, HT, KM, BT, and SP series models where specified
OEM / Aftermarket Genuine OEM STIHL replacement part

Compatible STIHL Model References

STIHL 0000 350 6201 is listed for the following model references. Use this list as a guide only and confirm fitment with your exact STIHL parts diagram before ordering.

  • STIHL MS 291 C-BEQ - Air baffle, carburetor bracket, shroud
  • STIHL MS 172 C-E - Engine housing, air filter, AV system, handlebar
  • STIHL MS 182 C-BE - Engine housing, air filter, AV system, handlebar
  • STIHL MS 212 C-BE - Engine housing, air filter, AV system, handlebar
  • STIHL MS 201 C-EM - Tank housing
  • STIHL MS 201 C-E - Tank housing
  • STIHL FS 120 - Carburetor housing, air filter up to serial number 809 249 646 / 10.2016
  • STIHL FS 120 R - Carburetor housing, air filter up to serial number 809 249 646 / 10.2016
  • STIHL FS 250 - Carburetor housing, air filter up to serial number 809 249 646 / 10.2016
  • STIHL FS 250 R - Carburetor housing, air filter up to serial number 809 249 646 / 10.2016
  • STIHL FS 350 - Carburetor housing, air filter
  • STIHL FS 450-K - Carburetor housing, air filter
  • STIHL FS 94 R - Engine up to serial number 514309587
  • STIHL HS 56 - Handle housing, fuel tank
  • STIHL HS 56 C-E - Handle housing, fuel tank
  • STIHL HS 46 C-E - Handle housing, fuel tank
  • STIHL HL 94 K - Engine up to serial number 514368761
  • STIHL HL 94 - Engine up to serial number 514368761
  • STIHL HL 91 K - Engine up to serial number 514399784
  • STIHL HT 250 - Carburetor housing, air filter, 16.2017
  • STIHL KM 94 R - Engine up to serial number 514291126
  • STIHL BT 121 - Carburetor housing, air filter
  • STIHL BT 120 C - Carburetor housing, air filter
  • STIHL SP 200 - Carburetor housing, air filter

Important: Several of these STIHL applications have serial-number breaks. Confirm that your parts diagram lists 0000 350 6201 before ordering.


Key Features

  • Genuine OEM STIHL fuel pump / primer bulb
  • Part number 0000 350 6201
  • Used on select STIHL MS, FS, HS, HL, HT, KM, BT, and SP series equipment
  • Helps prime the fuel system for easier starting
  • Common replacement for cracked, leaking, stiff, or worn primer bulbs
  • Factory-correct replacement when listed in your STIHL parts diagram

Why Replace the Fuel Pump / Primer Bulb?

The fuel pump or primer bulb helps move fuel through the system before starting. Over time, primer bulbs can harden, crack, leak, or lose their ability to draw fuel. When this happens, the equipment may become hard to start or may not prime properly.

Replacing a worn primer bulb with the correct OEM STIHL part helps restore proper priming and starting performance.

  • Helps restore proper fuel priming
  • Can improve starting when the old bulb is cracked or leaking
  • Helps prevent air leaks in the fuel system
  • Maintains OEM fit and function

When to Replace This Part

  • Primer bulb is cracked, cloudy, stiff, or damaged
  • Primer bulb does not fill with fuel
  • Fuel leaks around the primer bulb
  • Machine is difficult to start
  • Fuel lines or carburetor service is being performed
  • Parts diagram lists STIHL 0000 350 6201 for your machine

Important Fitment Notes

  • Verify fitment by exact STIHL model and parts diagram
  • Do not order by model family alone
  • Some models have serial-number breaks or production-date changes
  • Inspect fuel lines, grommets, carburetor components, and tank fittings when replacing fuel system parts
  • If the primer bulb will not fill, check for cracked fuel lines or air leaks

Pre-Purchase Checklist

Before ordering STIHL 0000 350 6201, confirm:

  • Your complete STIHL model number
  • Your machine version or serial number if applicable
  • Your original fuel pump / primer bulb part number
  • Your parts diagram lists 0000 350 6201
  • Your fuel lines and related components are in serviceable condition

Installation and Service Notes

Fuel system service should be completed with the equipment turned off and cooled down. Keep dirt and debris out of the fuel system during installation.

  • Drain or control fuel before service if needed
  • Inspect fuel lines for cracks, stiffness, or leaks
  • Replace brittle or damaged fuel lines during service
  • Confirm the primer bulb is seated correctly after installation
  • Prime and test the machine for leaks before returning it to use

Part Number / Search Terms

STIHL 0000 350 6201 may also be searched as:

  • STIHL 0000 350 6201
  • 0000 350 6201 fuel pump
  • 0000 350 6201 primer bulb
  • STIHL fuel pump primer bulb
  • STIHL primer bulb
  • STIHL fuel pump
  • STIHL MS 291 primer bulb
  • STIHL MS 172 primer bulb
  • STIHL MS 182 primer bulb
  • STIHL MS 212 primer bulb
  • STIHL MS 201 primer bulb
  • STIHL FS 120 primer bulb
  • STIHL FS 250 primer bulb
  • STIHL FS 350 primer bulb
  • STIHL FS 94 R primer bulb
  • STIHL HS 56 primer bulb
  • STIHL HS 46 primer bulb
  • STIHL HL 94 primer bulb
  • STIHL KM 94 R primer bulb
  • STIHL BT 121 primer bulb
  • STIHL OEM primer bulb

Frequently Asked Questions

What is STIHL 0000 350 6201?

STIHL 0000 350 6201 is a genuine OEM fuel pump / primer bulb used on select STIHL handheld equipment and chainsaw applications.

Is this the same as a primer bulb?

Yes. This part is commonly referred to as a fuel pump or primer bulb depending on the parts diagram and equipment application.

Does this fit STIHL MS 291 C-BEQ?

Yes, STIHL 0000 350 6201 is listed for the MS 291 C-BEQ in the air baffle, carburetor bracket, and shroud section. Always confirm your parts diagram before ordering.

Does this fit STIHL FS 120 and FS 250 trimmers?

This part is listed for select FS 120, FS 120 R, FS 250, and FS 250 R applications up to serial number 809 249 646 / 10.2016. Verify your exact serial number before ordering.

How do I know if my primer bulb is bad?

Common signs include cracking, leaking, stiffness, failure to fill with fuel, or hard starting. Also inspect fuel lines and related fuel system parts.

Is this an OEM STIHL part?

Yes. This listing is for a genuine OEM STIHL replacement fuel pump / primer bulb.


P&P Small Engines stocks genuine STIHL parts, fuel system parts, primer bulbs, filters, lines, chains, bars, oils, accessories, and maintenance parts for homeowners and professionals.