Alpine Chain Co. PF58-S chainsaw chain.

Equivalent chain size

3/8" PITCH | 0.058" GAUGE

• Echo 73EXL chain type (X266-000090 on the 20" bar)

Exact Fitment Specifications

To ensure compatibility with your Echo CS-7310SX, verify your current guide bar matches these exact metrics:

CHECK YOUR BAR STAMPS, and send us a photo of your bar stamp in the chat bubble for a Guaranteed Fit!

Fits Saw Model: Echo | CS-7310SX

Bar Length: 20" (72DL, standard), 24" (84DL) and 28" (92DL) options

Chain Pitch: 3/8"

Chain Gauge: 0.058" (1.5mm)

Cutter Profile: Semi-chisel

Sharpening File Size: 5.2mm round

Performance

• Durability: The semi-chisel tooth geometry is designed to withstand dry and dirty Australian hardwoods for sustained cutting.

• Specific use: For cutting dry firewood, Australian native hardwood timbers, soft timbers.

• Industrial Hardened Steel: Manufactured for high-torque professional saws, resisting thermal wear and chain stretch during heavy, sustained load.
  
  

  Need It Fast?

  Orders over $100 ship free by express; over $50 free standard. Orders are dispatched within 24 hours of processing.

  Echo CS-7310SX Chain Questions

  What size chain does an Echo CS-7310SX take?

  3/8" pitch, .058" (1.5mm) gauge, on every CS-7310SX. Drive link count depends on your bar: 72 DL for the 20" bar (standard), 84 DL for the 24" bar, 92 DL for the 28" bar.

  How many drive links is a CS-7310SX chain?

  Count depends on bar length — see the list above. If you're unsure which bar you have, the DL count is usually stamped on the bar itself, or count the drive links on your old chain.

  What file do I use on a CS-7310SX chain?

  A 5.2mm round file suits this 3/8" chain.

  Will this chain fit other Echo saws?

  Possibly, but please use our Search by Chainsaw tool to find your specific saw chain with no doubt.

  Is this a genuine Echo chain?

  No — it's an Alpine Chain Co. chain manufactured to fit the CS-7310SX, replacing the Echo 73EXL chain type (X266-000090 on the 20" bar). Same pitch, gauge and drive link options, with a semi-chisel profile chosen for Australian hardwood. Every fit is backed by our Guaranteed Fit system.

How to Verify Your Chain Size

If you are unsure if this is the correct chain for your Echo CS-7310SX, check the side of your current guide bar. The Pitch, Gauge, and Drive Link (DL) count are typically stamped directly into the bar near the mounting bolts.

Require technical verification? Chat with our specialist team using the chat bubble on screen, or ask our community on the Alpine Chain Co. Forum.