18" Bar & Chain for Stihl MS291 MS310 MS361 MS440 3/8 .050 66DL

Replace your worn chainsaw guide bar and chain together with this 18-inch aftermarket bar and chain combo for select Stihl chainsaws. Designed for compatible Stihl MS291, MS310, MS311, MS360, MS361, MS362, MS390, MS440 and other chainsaws using a D025 large-mount guide bar and a 3/8" standard-pitch drive system.

This complete replacement combo includes one 18" sprocket-nose guide bar and one matching chisel saw chain with 3/8" pitch, .050" gauge and 66 drive links.

Key Features

• Complete Bar and Chain Combo: Includes one 18" guide bar and one matching saw chain.
• 18-Inch Guide Bar: Sprocket-nose design for compatible Stihl chainsaws.
• Chisel Saw Chain: Replacement cutting chain for compatible woodcutting applications.
• 3/8" Standard Pitch: Requires a matching 3/8" drive sprocket.
• .050" Gauge: Matching guide bar groove and chain drive-link thickness.
• 66 Drive Links: Chain matched to the included guide bar.
• D025 Bar Mount: Stihl large-mount configuration.
• Aftermarket Replacement: Convenient option for replacing the guide bar and chain together.

Compatible Stihl Chainsaw Models

Stihl MS Series:

• MS 291
• MS 310
• MS 311
• MS 360
• MS 361
• MS 362
• MS 390
• MS 391
• MS 440, MS 440 Magnum
• MS 441
• MS 460
• MS 650
• MS 660, MS 660 Magnum

Classic Stihl Chainsaw Models:

• 029
• 030, 031, 032
• 034
• 036, 036 Pro
• 038, 038 Pro, 038 Super
• 039
• 040, 041, 042
• 044, 044 Magnum
• 045
• 046, 046 Magnum
• 048
• 056, 056 Super
• 064
• 066, 066 Magnum

Additional Stihl Models Using Comparable D025 Bar-Mount Configurations:

• 024, 026, 028
• MS 260, MS 261
• MS 270, MS 271, MS 280
• MS 380
• MS 400
• MS 461, MS 462
• MS 500i
• MS 661

Important: Additional models are cross-reference applications for comparable D025-mount bar and chain combinations. Some chainsaws use different chain pitches, gauges or drive sprockets. Confirm the original cutting attachment configuration before ordering.

Guide Bar and Chain Specifications

• Product Type: Chainsaw Guide Bar and Chain Combo
• Guide Bar Length: 18" (45 cm nominal)
• Guide Bar Type: Sprocket Nose
• Bar Mount: D025 / Stihl Large Mount
• Chain Type: Chisel
• Chain Pitch: 3/8" Standard
• Chain Gauge: .050" (1.3 mm)
• Drive Links: 66
• Package Quantity: 1 Guide Bar + 1 Saw Chain

Package Includes

• 1 Replacement 18" Chainsaw Guide Bar
• 1 Matching 18" Chisel Saw Chain, 3/8" Pitch, .050" Gauge, 66 Drive Links

Important Fitment Information

Before ordering, verify your chainsaw's bar mount, chain pitch, gauge and drive sprocket.

This combo uses a D025 Stihl large-mount guide bar and a 3/8" standard-pitch chain. It requires a compatible 3/8" drive sprocket and is not a direct replacement for a chainsaw configured with .325" pitch.

The included chain has .050" gauge and 66 drive links. It is matched to the included guide bar but may not fit another 18" guide bar requiring a different drive-link count or gauge.

Do not select a replacement solely by chainsaw model name or nominal bar length. Compare the original guide bar specifications, mounting arrangement and drive sprocket before ordering.

Follow the chainsaw manufacturer's instructions for installation, chain tension, lubrication and safe operation.