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Husqvarna 450 Rancher chain size

50.2 cc ranch saw. Stock 18″ setup: .325″ pitch, .050″ gauge, 72 drive links — Husqvarna H30 / X-CUT SP33G.

LAST VERIFIED 2026-10-23 · 2 BAR SETUPS · 2 VERIFIED

The 450 Rancher is a 50.2 cc X-Torq ranch saw, most commonly sold in North America with an 18″ narrow-kerf bar. Its factory chain — Husqvarna H30, now also sold as X-CUT SP33G — is a .325″ pitch, .050″ gauge loop with 72 drive links at 18″, sharpened with a 3/16″ file. An owner's actual bar for this saw, stamped “18″ · .325 · 050 · 72”, is the worked example in our verification guide.

Chain specifications by fitted bar

Chain specifications for the Husqvarna 450 Rancher by fitted bar
BarPitchGaugeDrive linksFileOEM chainEquivalent chains
18″
VERIFIED
.325″ .050″ (1.3 mm) 72 3/16″ (4.8 mm) Husqvarna H30-72
Husqvarna X-CUT SP33G (581643672)
Oregon 95TXL072 (SpeedCut)
Oregon M72
Confirmed by Husqvarna's H30 chain data (18″, .325″, .050″, 72 DL) and Husqvarna bar listings for this model. Narrow-kerf chain: pair it with a narrow-kerf (.050″) bar.
16″
VERIFIED
.325″ .050″ (1.3 mm) 66 3/16″ (4.8 mm) Husqvarna H30-66 Oregon 95TXL066
Listed for the 435/440/445/450 family in Husqvarna chain fitment listings. If your 450 wears a 16″ bar, expect 66 — then confirm on the stamp.

Sources: Husqvarna H-30 chain specifications (18″, .050″ gauge, .325″ pitch, 72 drive links, 3/16″ file) from the chain's manual record; Husqvarna X-Force bar listing for the 450 Rancher (18″, .325″, .050″, 72 DL, 3/16″ file); owner bar-stamp report — checked Oct 2026.

Source list (4)
  • Husqvarna — H30 chain specifications (18″, .050″ gauge, .325″ pitch, 72 drive links, 3/16″ file) from the chain manual record [manufacturer manual · retrieved 2026-10-23]
  • Husqvarna bar listing — X-Force bar listing for the 450 Rancher (18″, .325″, .050″, 72 DL, 3/16″ file) [dealer listing · retrieved 2026-10-23]
  • Husqvarna chain fitment listings — Fitment listings for the 435/440/445/450 family (H30-66) [dealer listing · retrieved 2026-10-23]
  • Owner bar-stamp report — Owner report of an 18″ bar stamped “18″ · .325 · 050 · 72” (illustrative only) [owner report · 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:

  • 18″ bar: .325″, .050″ (1.3 mm), 72 drive links — look for Oregon 95TXL072 (SpeedCut) / Oregon M72 or OEM Husqvarna H30-72 / Husqvarna X-CUT SP33G (581643672).
  • 16″ bar: .325″, .050″ (1.3 mm), 66 drive links — look for Oregon 95TXL066 or OEM Husqvarna H30-66.
  • 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 Husqvarna 450 Rancher chain

What size chain does a Husqvarna 450 Rancher take?

18″ bar: .325″ pitch, .050″ (1.3 mm) gauge, 72 drive links (Husqvarna H30-72); 16″ bar: .325″ pitch, .050″ (1.3 mm) gauge, 66 drive links (Husqvarna H30-66). 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 Husqvarna 450 Rancher?

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 Husqvarna 450 Rancher chain?

3/16″ (4.8 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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