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Backpack Blower

Stihl BR 550

2-Stroke

The Stihl BR 550 is a 2-stroke professional backpack blower near the top of Stihl's commercial BR range, designed for maximum-duty landscaping operations and high-volume debris clearing. It runs a Zama carburetor. An Easy2Start variant is available. Under daily commercial use, monthly fuel system inspection, air filter service, and harness integrity checks are routine. The BR 550 is a preferred choice on large-crew landscaping operations where operators run the blower for multiple hours per shift. Stihl's anti-vibration system reduces long-shift fatigue relative to older professional backpack designs.

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 BR 550 quick specs

Equipment
Backpack Blower · 2-Stroke
Covered Parts
Spark Plug, Air Filter, Fuel Filter, Carburetor, Recoil Starter, Ignition Coil, Primer Bulb, Fuel Line Kit
OEM References
0000 400 7011, 4282 141 0300, 4282 007 3600, 4282 120 0606, 4282 080 3401, 4282 400 1300, 1130 350 6200, 4282 007 1014
Model Family
BR 500, BR 550, BR 600
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, fuel line kit.

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 BR 550, 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.
  • Assuming all fuel line kits use the same diameter and routing.
  • 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 7011, 4282 141 0300, 4282 007 3600, 4282 120 0606 and match the removed part before choosing a listing.

Named part options

Cross-check named parts such as NGK CMR6H (spark plug), Stens 605-599 (air filter), Zama C1Q-S233 (carburetor) against the OEM number, identity label, and dimensions.

Best for annual tune-up

Bundle spark plug, air filter, fuel filter when servicing the Stihl BR 550 at the start of the season.

Best if replacing fuel system

Compare the fuel filter, carburetor, primer bulb, fuel line kit 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 BR 550? 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 BR 550? 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 7011
Dimensions
0.7mm gap

Air Filter

OEM4282 141 0300
Variant notes
Also fits BR 500, BR 600

Fuel Filter

OEM4282 007 3600
Variant notes
Dual-port pickup body assembly
  • 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

OEM4282 120 0606
Variant notes
Zama C1Q-S233; also fits BR 500

Recoil Starter

OEM4282 080 3401
Variant notes
Fits BR 500, BR 550, BR 600

Ignition Coil

OEM4282 400 1300
Variant notes
Fits BR 500, BR 550, BR 600
  • No named part listing is published for this part yet. Use the OEM reference and verify with a dealer or service manual before ordering.

Primer Bulb

OEM1130 350 6200
Variant notes
Fits BR 500, BR 550, BR 600

Fuel Line Kit

OEM4282 007 1014
Variant notes
Includes fuel pickup line and return line; fits BR 500, BR 550, BR 600