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Poulan 2150 / 3816 chain size

Common big-box homeowner saws. Oregon lists both for its 91-series chain: 16″ bar, 3/8″ low profile, .050″ gauge, 56 drive links.

LAST VERIFIED 2026-10-23 · 1 BAR SETUP · 1 VERIFIED

The Poulan 2150 and 3816 are among the most common budget homeowner saws in US garages, and they appear by name in Oregon's fitment data for its 91-series low-profile chain. McCulloch saws of the same era were built on related platforms, but because we have not traced per-model McCulloch fitments to a citable source, this page covers the Poulan models Oregon names — and points McCulloch owners at the bar stamp, which settles any of these saws in a minute.

Chain specifications by fitted bar

Chain specifications for the Poulan 2150 / 3816 by fitted bar
BarPitchGaugeDrive linksFileOEM chainEquivalent chains
16″
VERIFIED
3/8″ Low Profile .050″ (1.3 mm) 56 5/32″ (4.0 mm) — Oregon 91PX056 (S56)
Oregon 91VXL056
Oregon lists the Poulan 2150 and 3816 among the fitments for this exact chain. Many of these saws have had bars swapped over the years — the stamp check is not optional on a 15-year-old saw.

Sources: Oregon product data for 91VXL056G / S56 (3/8″ Low Profile, .050″ gauge, 56 drive links; fitments include Poulan 2150 and 3816) — checked Oct 2026.

Source list (1)
  • Oregon — Product data for 91VXL056G / S56 (3/8″ Low Profile, .050″ gauge, 56 drive links; fitments include Poulan 2150 and 3816) [chain-maker data · retrieved 2026-10-23]

The 60-second check for this saw

  1. Take the clutch cover off (two nuts) and lift the bar out.
  2. Read the stamp on the bar tail: length, pitch, gauge, and the drive-link count on most bars.
  3. Match all three numbers to the table above. If your stamp disagrees with the table, your saw is wearing a non-standard bar — order to the stamp, and tell us via the contact page so we can note the variant.

Full method, with diagrams: How to verify your chain size · Chain identification chart

Where to buy the right loop

Match these three numbers at any of the retailers below — the brand on the box matters less than the numbers on it:

  • 16″ bar: 3/8″ Low Profile, .050″ (1.3 mm), 56 drive links — look for Oregon 91PX056 (S56) / Oregon 91VXL056.
  • Oregon Products — the chain maker's own site: full spec data for every Oregon loop, sold through its dealers.
  • Acme Tools — US outdoor-power retailer carrying Oregon chain.
  • Amazon — widest selection of Oregon and OEM loops in the US and Canada; check the seller's stated pitch/gauge/drive links against the table above.
  • Your local saw dealer — the right call for genuine Stihl chain, which Stihl sells through dealers rather than online.

Price guide from listings checked 23 Oct 2026: a single Oregon loop was listed at about $21.43 and 3-packs at about $47.94–$67.99. These are dated examples, not live prices — the checkout price is the real one. The links above are plain retailer links with no affiliate tags and earn no commission: our disclosure.

Questions about the Poulan 2150 / 3816 chain

What size chain does a Poulan 2150 / 3816 take?

16″ bar: 3/8″ Low Profile pitch, .050″ (1.3 mm) gauge, 56 drive links. Other bar lengths are listed as "verify on your bar stamp" because we only print drive-link counts we can trace to a citable source. Always confirm pitch, gauge and drive links on your own bar stamp.

How do I check the chain size on my Poulan 2150 / 3816?

Take the clutch cover off, lift the bar out and read the stamp on the bar tail: it shows bar length, pitch, gauge and usually the drive-link count. Match all three numbers; if your stamp disagrees with a chart, order to the stamp.

What file size sharpens the Poulan 2150 / 3816 chain?

5/32″ (4.0 mm) round file, depending on the pitch of the chain fitted. File size follows pitch: 3/8 inch low-profile takes 5/32 inch, .325 inch takes 3/16 inch, and standard 3/8 inch takes 7/32 inch.

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