McCulloch MC3516 chainsaw Parts

For the Mcculloch MC3516 gas chainsaw, the chain size is typically matched to a 16-inch guide bar. Most MC3516 setups use a low-profile 3/8-inch pitch chain; the exact gauge and drive link count must match the bar and sprocket you have installed.

How to confirm the exact chain you need

We recommend verifying three specs on your current chain or bar before ordering:

• Pitch: commonly 3/8-inch low profile (3/8 LP)
• Gauge: commonly .050 inch (but confirm on your bar stamp)
• Drive links (DL): must match your bar length and mount pattern
• Bar length: commonly 16 inches on MC3516
• Sprocket type/condition: worn sprockets can cause poor fit and fast chain wear

Quick spec checklist (what to look for)

Use this as a quick reference while you inspect the saw:

Spec to match	Where to find it	Why it matters
Pitch	Bar stamp or chain package	Must match the drive sprocket
Gauge	Bar stamp	Must match the bar groove width
Drive links	Chain package or count links	Determines chain length

Related parts that affect chain fit and performance

If the chain keeps loosening, binds, or will not tension correctly, these parts often play a role:

• Bar mounting hardware and adjuster components (for example, a worn chainsaw bar adjuster screw 530069611)
• Clutch and drum wear (inspect the chainsaw clutch 530057907 if the chain slips or chatters)
• Chain brake drag or damage (a sticking brake can mimic a wrong-size chain)

Why it matters

A chain with the wrong pitch, gauge, or drive link count can derail, cut poorly, and accelerate wear on the bar, sprocket, and clutch. Matching the chain to your exact bar markings keeps the MC3516 cutting safely and efficiently.

Last updated: February 2026

Yes. Mcculloch is a brand owned by the Husqvarna Group, so Mcculloch chainsaws (including the MC3516) are produced under that corporate umbrella. For repairs, what matters most is matching parts to your exact model number and part ID.

What this means for parts and repairs

Even though Husqvarna and Mcculloch are related, parts are not automatically interchangeable across brands or models. For the Mcculloch MC3516 gas chainsaw, use the model-specific parts list to avoid fit and fuel-system issues.

Common MC3516 service parts on this page include:

• Poulan lawn & garden equipment fuel line, small 530069247 for cracked or leaking small fuel line
• Ayp lawn & garden equipment fuel line, large 530069216 for hardened or split main fuel line
• Ayp lawn & garden equipment engine carburetor primer bulb 530047721 if the primer won’t fill or is torn
• Mcculloch lawn & garden equipment engine air filter 530057925 to correct rich running and poor acceleration
• Ayp chainsaw spark arrestor 545006056 if the saw bogs down from a plugged screen

Quick checks before you buy parts

These steps help confirm whether you need a fuel, ignition, or air/exhaust part.

• Verify the model tag reads MC3516 (not a close variant)
• If it leaks fuel, inspect both fuel lines and the tank grommet area
• If it won’t start, check for fresh fuel mix, a wet plug (flooding), and a working primer bulb
• If it starts then dies, suspect restricted fuel flow (lines) or a dirty air filter
• If it runs but lacks power, check the spark arrestor screen for carbon buildup

Symptom-to-part guide

Symptom	Most likely area	Part examples on this page
Fuel smell or wet saw body	Fuel delivery	Fuel lines (530069247, 530069216)
Primer won’t pull fuel	Primer/fuel circuit	Primer bulb 530047721
Runs rough or stalls	Air/fuel balance	Air filter 530057925, fuel lines
Bogs at full throttle	Exhaust restriction	Spark arrestor 545006056

Why it matters

Knowing Mcculloch is under Husqvarna Group helps explain why you may see Husqvarna-branded components, but correct fit still depends on the MC3516 parts breakdown and the exact part ID.

Last updated: February 2026

To identify your Mcculloch chainsaw model, we look for the model number on the saw itself, usually on a label, tag, or a stamped marking on the housing or crankcase. Once you find it (for example, MC3516), you can match parts and diagrams accurately.

Where to look on the saw

Check these common spots first (clean off oil and sawdust so the numbers are readable):

• On the starter housing (recoil cover) near the pull cord
• On the rear handle area near the throttle trigger
• On the underside of the saw body (bottom of the crankcase)
• Near the bar mount area, behind the clutch cover
• On a metal or foil ID tag, sometimes held by a screw or rivet

If you only find stamped numbers

Some Mcculloch saws have numbers stamped into the crankcase or molded into the plastic. Use the most complete ID you can find:

• Model number (best match for parts)
• Type number or product number (common on outdoor power equipment)
• Serial number (helps narrow production runs)

Quick ID checklist

What you find	What it’s used for	Best for ordering parts?
Model number (example: MC3516)	Identifies the exact saw family	Yes
Product/type number	Identifies a specific configuration	Often
Serial number	Identifies production run	Sometimes

Why it matters

Chainsaw parts like fuel lines, carburetors, and ignition components vary by model and even by production run. Using the correct model number helps us match the right items the first time, such as the ayp chainsaw carburetor 545070601 or the Mcculloch lawn & garden equipment engine air filter 530057925.

Helpful next step for common symptoms

If you are identifying the model because the saw is hard to start, we use a simple fuel and ignition checklist first (fresh fuel mix, clean air filter, good spark, and a priming system that holds fuel). Our tips for a hard to start chainsaw guide walks through the fastest checks.

Last updated: February 2026

Mcculloch chainsaws did not disappear; the Mcculloch name continued under new ownership over time and is now used for consumer-focused outdoor power equipment rather than the original, standalone manufacturer. For your Mcculloch MC3516 chainsaw, parts support continues through common service items and assemblies.

What changed (and what did not)

• The Mcculloch brand name continued, even as ownership and manufacturing shifted over the years.
• The product focus moved toward homeowner and light-duty consumer equipment.
• Many replacement parts are shared across related platforms (fuel system, starter, ignition, bar and chain components).
• Your model MC3516 is still serviceable with available replacement parts.

What to do if you are repairing an MC3516 today

Start by matching the symptom to the system that commonly causes it:

Symptom	Most likely system	Common parts to check
Won’t start or hard to start	Fuel/air/ignition	Fuel lines, primer bulb, air filter, spark plug
Starts then dies or runs rough	Carburetion/fuel delivery	Carburetor, fuel line fitting, air filter
Pull cord won’t retract	Recoil starter	Starter repair kit, starter spring
Chain won’t oil	Oiling system	Oil pump kit or oil pump assembly

Parts that commonly keep an older chainsaw running

These are frequent wear items we see replaced on gas chainsaws like the MC3516:

• Poulan lawn & garden equipment fuel line, small 530069247 (cracked or leaking fuel line)
• Ayp lawn & garden equipment engine carburetor primer bulb 530047721 (won’t prime, cracked bulb)
• Mcculloch lawn & garden equipment engine air filter 530057925 (restricted airflow, rich running)
• Ayp chainsaw carburetor 545070601 (surging, won’t idle, fuel metering issues)
• Chainsaw oil pump kit 530071891 (dry bar and chain, poor lubrication)

Why it matters

Knowing the brand history helps set expectations: you may see parts labeled AYP, Poulan, Husqvarna, or Mcculloch, but what matters is matching the correct part ID for the MC3516 so the fuel system, ignition, and lubrication systems work safely and reliably.

For troubleshooting steps that match common MC3516 symptoms, use our DIY guide: chainsaw care and troubleshooting tips.

Last updated: February 2026