Chainsaw

Husqvarna 576 XP

2-Stroke

The Husqvarna 576 XP is a 73.5cc 2-stroke professional chainsaw built for high-production logging, large-tree felling, and demanding timber operations, accepting 24" to 36" guide bars. It runs a Walbro carburetor and features Husqvarna's LowVib anti-vibration system for extended professional shifts. Fuel system service (filter, lines, primer bulb) every 50 hours and annual carburetor inspection are standard on production saws. Bar groove and drive sprocket wear are the primary mechanical concerns at this displacement.

See a wrong fitment? Report a correction.

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

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, 537207501, 591375401, 580735801, 537202401, 537162204, 503936601, 581798001
Model Family: 575 XP, 576 XP
Last Reviewed: Not yet independently reviewed
Data Confidence: Not yet independently reviewed
Sources Consulted: Evidence source not recorded

Quick Fitment

Part Type	OEM / Spec	Common Option	Confidence
Spark Plug	503235111	NGK BPM7A	Confidence not assigned · Not yet independently reviewed
Air Filter	537207501	OEM 537207501	Confidence not assigned · Not yet independently reviewed
Fuel Filter	591375401	Stens 610-035	Confidence not assigned · Not yet independently reviewed
Carburetor	580735801	OEM 580735801	Confidence not assigned · Not yet independently reviewed
Primer Bulb	503936601	Zama BG-00-4	Confidence not assigned · Not yet independently reviewed
Recoil Starter	537202401	OEM 537202401	Confidence not assigned · Not yet independently reviewed
Ignition Coil	537162204	OEM 537162204	Confidence not assigned · Not yet independently reviewed
Fuel Line Kit	581798001	OEM 581798001	Confidence not assigned · Not yet independently reviewed

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 576 XP, 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, 537207501, 591375401, 580735801 and match the removed part before choosing a listing.

Common aftermarket option

Cross-check aftermarket listings such as NGK BPM7A (spark plug), Stens 610-035 (fuel filter), Zama BG-00-4 (primer bulb) against the OEM number and dimensions.

Best for annual tune-up

Bundle spark plug, air filter, fuel filter when servicing the Husqvarna 576 XP 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 576 XP? 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 576 XP? 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.

Spark Plug

OEM503235111Confidence: Confidence not assigned · Source: Evidence source not recorded

Reviewed: Not yet independently reviewed
Dimensions: 0.5mm gap
Variant notes: NGK BPM7A equivalent; also fits 570, 575 XP

Brand	Part #
NGK	BPM7A	Search AmazonAmazonAffiliate link Some links may be affiliate links. Match the OEM number, dimensions, and model variant before buying.
Champion	RCJ6Y	Search AmazonAmazonAffiliate link Some links may be affiliate links. Match the OEM number, dimensions, and model variant before buying.

Air Filter

OEM537207501Confidence: Confidence not assigned · Source: Evidence source not recorded

Reviewed: Not yet independently reviewed
Variant notes: Fits 570, 575, 576 XP and XPG variants

Brand	Part #
No aftermarket listing is published for this part yet. Use the OEM reference and verify with a dealer or service manual before ordering.

Fuel Filter

OEM591375401Confidence: Confidence not assigned · Source: Evidence source not recorded

Reviewed: Not yet independently reviewed
Variant notes: In-tank pickup filter; also fits 555, 562 XP, 576 XP

Brand	Part #
Stens	610-035	Search AmazonAmazonAffiliate link Some links may be affiliate links. Match the OEM number, dimensions, and model variant before buying.

Carburetor

OEM580735801Confidence: Confidence not assigned · Source: Evidence source not recorded

Reviewed: Not yet independently reviewed
Variant notes: Genuine Husqvarna carburetor; replaces 577370302, 544199801

Brand	Part #
No aftermarket listing is published for this part yet. Use the OEM reference and verify with a dealer or service manual before ordering.

Recoil Starter

OEM537202401Confidence: Confidence not assigned · Source: Evidence source not recorded

Reviewed: Not yet independently reviewed
Variant notes: Starter housing and cover assembly; also fits 575 XP

Brand	Part #
No aftermarket listing is published for this part yet. Use the OEM reference and verify with a dealer or service manual before ordering.

Ignition Coil

OEM537162204Confidence: Confidence not assigned · Source: Evidence source not recorded

Reviewed: Not yet independently reviewed
Variant notes: Fits 576 XP and EPA variants; replaces 544047101

Brand	Part #
No aftermarket listing is published for this part yet. Use the OEM reference and verify with a dealer or service manual before ordering.

Primer Bulb

OEM503936601Confidence: Confidence not assigned · Source: Evidence source not recorded

Reviewed: Not yet independently reviewed

Brand	Part #
Zama	BG-00-4	Search AmazonAmazonAffiliate link Some links may be affiliate links. Match the OEM number, dimensions, and model variant before buying.

Fuel Line Kit

OEM581798001Confidence: Confidence not assigned · Source: Evidence source not recorded

Reviewed: Not yet independently reviewed
Variant notes: Includes fuel pickup line and return line

Brand	Part #
No aftermarket listing is published for this part yet. Use the OEM reference and verify with a dealer or service manual before ordering.

Chain

OEMSpec-based fitmentConfidence: Confidence not assigned · Source: Evidence source not recorded

Reviewed: Not yet independently reviewed
Dimensions: 20", 3/8" pitch, .050" gauge, 72 drive links
Variant notes: Stock bar length; verify drive link count matches your bar

Brand	Part #
Oregon	73EXL072E	Search AmazonAmazonAffiliate link Some links may be affiliate links. Match the OEM number, dimensions, and model variant before buying.

Guide Bar