STIHL 3689 005 0074 OEM Chainsaw Chain | 26RM3 18" .325 .063 74DL

STIHL 3689-005-0074 OEM Chainsaw Chain - 26RM3 Rapid Micro 18 Inch

The STIHL 3689-005-0074 Chainsaw Chain is a genuine OEM STIHL 26RM3 Rapid Micro chain loop for saws running an 18 inch bar, .325 inch pitch, .063 inch gauge, and 74 drive links. This is a factory-correct STIHL chain, not an aftermarket replacement.

STIHL Rapid Micro chain uses a semi-chisel cutter design that delivers dependable cutting performance, good durability, and easier sharpening compared to more aggressive full-chisel chain. It is a strong choice for firewood cutting, property maintenance, farm use, and professional cutting applications where smooth performance and long service life matter.

Model fitment alone does not guarantee the correct chain. Always verify your guide bar markings or current chain specifications before ordering.

Product Details

Key Features

• Genuine OEM STIHL chainsaw chain
• Part number 3689 005 0074
• STIHL 26RM3 Rapid Micro chain loop
• Fits 18 inch bars using .325 pitch and .063 gauge chain
• 74 drive links
• Semi-chisel cutter design for durability and easy maintenance
• Smooth cutting performance for firewood, landowner, farm, and professional use
• Factory-correct chain for compatible STIHL guide bar setups

Verify Chain Fitment Before Ordering

Before ordering STIHL 3689-005-0074, confirm the following chain specifications on your guide bar or current chain:

• Bar Length: 18 inch
• Pitch: .325 inch
• Gauge: .063 inch / 1.6 mm
• Drive Links: 74
• Chain Model: 26RM3 Rapid Micro

Important: A .063 gauge chain will not fit a .050 or .058 gauge bar. Always match bar length, pitch, gauge, and drive link count before ordering.

Compatible STIHL Chainsaw Models

This OEM STIHL chain fits select STIHL chainsaws when equipped with an 18 inch .325 pitch .063 gauge guide bar requiring 74 drive links.

Fitment note: Chainsaw model alone does not guarantee fitment. Your guide bar specifications must match 18 inch bar length, .325 inch pitch, .063 inch gauge, and 74 drive links. A .063 gauge chain will not fit .050 or .058 gauge bars.

Why Choose OEM STIHL Rapid Micro Chain?

Genuine STIHL chains are built to factory specifications for proper fit, cutting performance, and durability. Rapid Micro semi-chisel cutters are designed for smooth cutting, good edge durability, and easier sharpening, making this chain a reliable choice for a wide range of cutting conditions.

• Exact OEM STIHL specifications
• Proper fit on compatible STIHL guide bars
• Durable semi-chisel cutter design
• Good cutting performance in real-world wood conditions
• Helps avoid fitment issues common with incorrect aftermarket chains

Important Fitment Note

STIHL 3689-005-0074 fits only saw and bar combinations that require an 18 inch, .325 pitch, .063 gauge, 74 drive link chain. Always verify the numbers stamped on your guide bar or count the drive links on your current chain before ordering.

Before ordering, confirm:

• Your chainsaw model
• Your guide bar length
• Your chain pitch
• Your chain gauge
• Your drive link count
• Your original STIHL chain part number, if available

If you are unsure, contact P&P Small Engines with your saw model and guide bar markings before ordering.

Part Number / Search Terms

STIHL 3689-005-0074 may also be searched as:

• 3689 005 0074
• 36890050074
• STIHL 3689-005-0074
• STIHL 26RM3 chain
• STIHL 26RM3 74DL
• STIHL 18 inch chainsaw chain
• STIHL .325 .063 74DL chain
• STIHL Rapid Micro chain
• STIHL MS 261 18 inch chain
• STIHL MS 271 Farm Boss chain
• STIHL MS 290 Farm Boss chain
• STIHL Farm Boss 18 inch chain
• STIHL Wood Boss chain

Frequently Asked Questions

Is STIHL 3689-005-0074 an OEM chain?

Yes. STIHL 3689-005-0074 is a genuine OEM STIHL 26RM3 Rapid Micro chainsaw chain.

What size chain is STIHL 3689-005-0074?

This chain is for an 18 inch bar with .325 inch pitch, .063 inch gauge, and 74 drive links.

Will this chain fit my STIHL MS 261 C-M?

Yes, if your MS 261 C-M is equipped with an 18 inch guide bar that uses .325 pitch, .063 gauge, and 74 drive links.

Will this fit a .050 or .058 gauge bar?

No. This is a .063 gauge chain and will not fit .050 or .058 gauge guide bars.

What does Rapid Micro mean?

Rapid Micro is STIHL’s semi-chisel cutter style, designed for dependable cutting performance, durability, and easier sharpening.

P&P Small Engines stocks genuine STIHL chains, guide bars, sprockets, bar oil, files, sharpening tools, and replacement parts to help keep your saw ready to cut.