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Chainsaw

Husqvarna 135

2-Stroke

The Husqvarna 135 is a 40.9cc 2-stroke chainsaw designed for regular homeowner use — firewood cutting, light felling, and property maintenance with 14" to 16" guide bars. The X-Torq engine platform improves fuel efficiency over the previous generation. The 135 runs a Zama carburetor and accepts NGK BPMR7A or Champion RCJ6Y spark plugs. The air inertia chain brake, combined choke/stop control, and adjustable oil pump are standard features. Routine maintenance items are the spark plug, air filter, primer bulb, and fuel system components.

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

Husqvarna 135 quick specs

Equipment
Chainsaw · 2-Stroke
Covered Parts
Spark Plug, Air Filter, Fuel Filter, Carburetor, Recoil Starter, Ignition Coil, Primer Bulb, Fuel Line Kit, Chain, Guide Bar
OEM References
503235111, 588229301, 591375401, 506450501, 591466702, 591466501, 503936601, 592854401, 596009756
Model Family
120, 130, 135
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 Husqvarna 135, 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.
  • Matching bar length but missing pitch, gauge, or drive-link count.

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

Cuts slowly

Chain pitch/gauge, bar wear, drive links

Replacement Options

Best OEM equivalent

Start with OEM references 503235111, 588229301, 591375401, 506450501 and match the removed part before choosing a listing.

Named part options

Cross-check named parts such as NGK BPMR7A (spark plug), Stens 605-580 (air filter), Stens 610-034 (fuel filter) against the OEM number, identity label, and dimensions.

Best for annual tune-up

Bundle spark plug, air filter, fuel filter when servicing the Husqvarna 135 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 chain/bar combo

Match chain specs together, especially pitch, gauge, drive links, and bar mount details.

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 Husqvarna 135? 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 135? 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.

What chain details matter besides bar length? Match pitch, gauge, and drive-link count against the bar stamp, old chain, and drive sprocket. Bar length alone is not enough.

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

Spark Plug

OEM503235111
Dimensions
0.5mm gap
Variant notes
NGK BPMR7A; also fits 123, 130, 145, 240, 435, 440

Air Filter

OEM588229301
Variant notes
Mesh air filter; 588229302 is non-woven alternative; also fits 130, 135 Mark II

Fuel Filter

OEM591375401
Variant notes
In-tank pickup filter

Carburetor

OEM506450501
Variant notes
Zama C1T-EL41; also fits 135E, 140, 140E, 435, 440, 435E, 440E

Recoil Starter

OEM591466702
Variant notes
Service kit starter housing for 135 Mark II
  • No named part listing is published for this part yet. Use the OEM reference and verify with a dealer or service manual before ordering.

Ignition Coil

OEM591466501
Variant notes
Ignition module service kit; also fits 130, 135 Mark II
  • 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

OEM503936601
Variant notes
Air purge bubble; also fits 130, 135, 140, 235, 236, 240
  • 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 Line Kit

OEM592854401
Variant notes
Service kit fuel hose assembly; also fits 130

Chain

OEMSpec-based fitment
Dimensions
16", 3/8" LP pitch, .050" gauge, 56 drive links
Variant notes
135 Mark II ships with 16" bar; verify drive link count matches your bar

Guide Bar

OEM596009756
Dimensions
16", 3/8" LP pitch, .050" gauge, 56 drive links
Variant notes
OEM Husqvarna HL-280-56 bar; superseded from 501959256