3-pack 20-inch Chainsaw Chain 3/8" LP Pitch, 0.050" Gauge, 72 Drive Links

3-pack 20-inch Chainsaw Chain 3/8" LP Pitch, 0.050" Gauge, 72 Drive Links

Key Features

• Package Quantity: 3 chains
• Guide Bar Length: 20 inches
• Chain Pitch: 3/8" Low Profile (LP)
• Chain Gauge: 0.050 inches (1.3mm)
• Drive Link Count: 72
• Cutter Type: Semi-chisel
• Design features low-kickback characteristics for safety
• Constructed from heat-treated, hard-chrome steel for durability

Replaces / Cross-Reference Part Numbers

• Oregon: 91PX072G, 91VXL072G, S72
• Husqvarna: H37-72, 581643672
• Stihl: 63PM3 72, 3636 005 0072
• Carlton: N1C-BL-72E

Compatibility & Fitment

• Fits select chainsaw models from brands including Echo, Husqvarna, Poulan, Stihl, and others that require a 20-inch bar.
• Ensure your chainsaw is specified to use a chain with 3/8" LP pitch, 0.050" gauge, and 72 drive links.
• Verification: Match the specifications stamped on your guide bar or printed on your old chain to confirm compatibility.

When to Replace

• Cutters are worn down to the end-of-life indicator line.
• Chain produces fine sawdust instead of coarse wood chips after sharpening.
• Visible damage such as broken cutters, cracked tie-straps, or bent drive links.
• Chain can no longer be correctly tensioned on the guide bar.
• Saw begins to cut crooked or bind, indicating uneven cutter wear or damage.

Installation Tips

• Disconnect the spark plug wire before performing any maintenance.
• Install the chain with cutters on the top of the bar facing forward, toward the bar tip.
• Tension the chain according to your saw's user manual. A correctly tensioned chain should pull away from the bar slightly and snap back into place.
• Lubricate the new chain and guide bar thoroughly before first use.
• Re-check and adjust chain tension after the first few minutes of operation as new chains will stretch.