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Blower

Stihl BG 55

2-Stroke

The Stihl BG 55 is a 27.2cc 2-stroke handheld blower designed for residential leaf and debris clearing. It is the entry point to Stihl's BG handheld blower range, suited for driveways, patios, and residential lots. The BG 55 runs a Zama carburetor and shares engine architecture with the FS 38/40/45 trimmer family. Common failure modes are fuel line cracking from ethanol exposure and primer bulb deterioration — detectable by fuel leaks or failure to prime. The air filter should be cleaned each season and replaced annually under regular use.

Verify before ordering: Fitment can vary by serial number, production date, region, and sub-model. Match the OEM number and physical dimensions before ordering.

Stihl BG 55 quick specs

Equipment
Blower · 2-Stroke
Covered Parts
Spark Plug, Air Filter, Fuel Filter, Carburetor, Primer Bulb, Fuel Line
OEM References
0000 400 7000, 4229 120 1800, 0000 350 3502, 4229 120 0606, 1130 350 6200, 4229 358 7702
Model Family
BG 55, BG 56 C-E
Data Confidence
Not yet independently reviewed

Quick Fitment

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Tune-Up Kit

Common service bundle: spark plug, air filter, fuel filter, carburetor, primer bulb.

Maintenance Interval

Inspect filters and fuel lines each season, replace spark plugs during annual service, and service carb/fuel-system parts when starting or idle symptoms appear.

Before You Buy

  • Confirm the full model is Stihl BG 55, not just the family name.
  • Check serial number, production date, and regional variant before ordering.
  • Match the old OEM number stamped on the removed part when available.
  • Compare dimensions, plug gap, thread, fuel line diameter, or chain pitch/gauge where applicable.

Common Mistakes

  • Ordering from a family listing without checking the exact sub-model.
  • Buying a kit that includes the headline part but wrong gaskets, lines, or bulb size.
  • Choosing the wrong carburetor revision when multiple versions were used.
  • Installing the correct plug number with the wrong gap.

Symptoms Map

Won't start

Spark plug, fuel filter, primer bulb, carburetor

Starts then dies

Fuel filter, fuel line kit, carburetor

Bogs under throttle

Air filter, carburetor, spark plug gap

Primer will not fill

Primer bulb, fuel line routing, in-tank filter

Replacement Options

Best OEM equivalent

Start with OEM references 0000 400 7000, 4229 120 1800, 0000 350 3502, 4229 120 0606 and match the removed part before choosing a listing.

Named part options

Cross-check named parts such as NGK BPMR7A (spark plug), Zama C1Q-S68G (carburetor), Zama 0057003 (primer bulb) against the OEM number, identity label, and dimensions.

Best for annual tune-up

Bundle spark plug, air filter, fuel filter when servicing the Stihl BG 55 at the start of the season.

Best if replacing fuel system

Compare the fuel filter, carburetor, primer bulb together so line routing, bulb size, filter style, and carburetor connections match.

Best budget kit

Use kit listings only when every included part matches this model page; cheap kits often mix correct headline parts with wrong bulbs, lines, or gaskets.

FAQ

Should I buy OEM or aftermarket parts for the Stihl BG 55? Use OEM when the part controls fuel metering, ignition, or safety. Aftermarket kits can be useful for routine filters, bulbs, plugs, and tune-up bundles when the OEM number and dimensions match.

How do I avoid ordering the wrong carburetor for the BG 55? Match the carburetor number stamped on the removed unit, then compare linkage, choke setup, primer routing, gasket stack, and fuel-inlet direction.

What should I check before replacing fuel-system parts? Photograph the old fuel-line routing, match line diameter and filter style, and compare primer bulb size before buying a kit.

As an Amazon Associate, WhichPartFits earns from qualifying purchases. Match the OEM number, dimensions, and model variant before buying.

Spark Plug

OEM0000 400 7000
Dimensions
BPMR7A; 0.5mm gap

Air Filter

OEM4229 120 1800
Variant notes
Also fits BG 45, BG 46, BG 65, BG 85, SH 55, SH 85
  • No named part listing is published for this part yet. Use the OEM reference and verify with a dealer or service manual before ordering.

Fuel Filter

OEM0000 350 3502
Variant notes
In-tank pickup fuel filter; fits many Stihl 2-stroke models
  • No named part listing is published for this part yet. Use the OEM reference and verify with a dealer or service manual before ordering.

Carburetor

OEM4229 120 0606
Variant notes
Zama C1Q-S68G; also fits BG 45, BG 46, BG 65, BG 85, SH 55, SH 85

Primer Bulb

OEM1130 350 6200
Variant notes
Fits BG 45, BG 46, BG 55, BG 65, BG 85 and other Stihl 2-stroke equipment

Fuel Line

OEM4229 358 7702
Variant notes
Fuel pickup line; also fits BG 45, BG 46, BG 65, BG 85, SH 85
  • No named part listing is published for this part yet. Use the OEM reference and verify with a dealer or service manual before ordering.