Description
STIHL OEM 3623 005 0066 33 RS RAPID™ Super Chainsaw Chain – 18", 3/8" Pitch, .050" Gauge, 66 Drive Links – Full-Chisel
Experience aggressive, professional-grade cutting performance with the STIHL 33 RS RAPID™ Super Chainsaw Chain. Genuine STIHL OEM part number 3623 005 0066 is an 18" full-chisel saw chain featuring 3/8" (.375") pitch, .050" (1.3 mm) gauge, and 66 drive links. Designed for higher-powered chainsaws, RAPID Super delivers exceptionally fast cutting performance for professional forestry, logging, and demanding woodcutting applications.
The razor-edged, square-cornered full-chisel cutters provide aggressive cutting performance with excellent efficiency in clean wood. STIHL's specially engineered cutter and tie strap design helps reduce vibration while maintaining the fast-cutting characteristics professional operators expect from the RAPID Super series.
Manufactured in Switzerland, this genuine STIHL OEM chain also incorporates STIHL's patented OILOMATIC® lubrication system and factory pre-stretched construction to help reduce chain wear and minimize excessive tension adjustments during break-in.
Chain fitment depends on the specifications of your guide bar and cutting system—not just the chainsaw model or bar length.
Always verify your current chain specifications:
- 18" (45 cm) Bar Length
- 3/8" (.375") Pitch
- .050" (1.3 mm) Gauge
- 66 Drive Links
- STIHL 33 RS / RAPID Super
- Full-Chisel Cutter
- Standard Cutter Sequence
Bar length alone does not guarantee compatibility. STIHL chainsaws may be equipped with different guide bars and cutting systems. Always verify the pitch, gauge, drive-link count, and guide bar specifications before ordering.
Important – Professional Chain: STIHL 33 RS is an aggressive full-chisel chain with reduced-vibration features but no significant kickback-reduction features. It is intended for trained, experienced professional chainsaw operators.
Kickback Safety: STIHL recommends using low-kickback, green-labeled saw chain with green-labeled reduced-kickback guide bars where appropriate for the powerhead and application. Improper use of aggressive cutting chain can increase the risk of serious injury from kickback.
Important: This is a standard 3/8" pitch chain. Do not substitute 3/8" Low Profile (Picco), .325", or other pitch chains. The chain pitch must match the guide bar nose and drive sprocket, and the .050" gauge must match the guide bar groove.
If you're unsure, contact us with your STIHL model number, serial number, guide bar information, and current chain number, and we'll help verify the correct replacement before you order.
Product Features
- Genuine STIHL OEM replacement saw chain
- STIHL Part Number: 3623 005 0066
- STIHL 33 RS – RAPID™ Super chain
- 18" chain with 66 drive links
- 3/8" (.375") pitch
- .050" (1.3 mm) gauge
- Aggressive full-chisel cutter design
- Square-cornered cutters provide extremely fast cutting performance
- Excellent cutting efficiency in clean wood
- Designed for professional forestry and logging applications
- Reduced-vibration cutter and tie strap design
- Excellent bucking, felling, and limbing performance
- Suitable for professional plunge-cutting applications
- Performs well in clean hardwood and frozen wood
- Typically cuts faster than comparable STIHL RAPID Micro semi-chisel chain under suitable conditions
- Best performance in clean cutting conditions with limited dirt and abrasive material
- STIHL OILOMATIC® drive-link lubrication system
- Lubrication slots help direct oil toward the rivets and critical wear areas
- Factory pre-stretched to reduce excessive adjustment during break-in
- Professional-quality STIHL construction
- Swiss-made OEM STIHL saw chain
- Recommended sharpening file: 5.2 mm (13/64")
- Standard cutter sequence
- Sold as one complete chain loop
Specifications
- Brand: STIHL
- OEM Part Number: 3623 005 0066
- Chain Type: 33 RS
- Chain Family: RAPID™ Super
- Product Type: Professional Chainsaw Chain
- Package Quantity: 1 Chain
- Bar Length: 18" (45 cm)
- Pitch: 3/8" (.375")
- Gauge: .050" (1.3 mm)
- Drive Links: 66
- Cutter Type: Full-Chisel
- Cutter Sequence: Standard
- Profile: Standard Professional Chain
- Vibration Design: Reduced Vibration
- Kickback Classification: No Significant Kickback-Reduction Features
- Recommended File Size: 5.2 mm (13/64")
- Recommended Saw Displacement: 3.0–6.0 cu. in. (50–100 cc)
- Lubrication System: STIHL OILOMATIC®
- Construction: Factory Pre-Stretched
- Country of Manufacture: Switzerland
- Recommended Applications: Professional Forestry, Logging, Felling, Bucking, Limbing & Clean Woodcutting
What Makes STIHL RAPID Super Different?
The STIHL RAPID Super chain is designed for professional operators who demand maximum cutting speed and efficiency. Its full-chisel cutter design features sharp, square-cornered cutting edges that aggressively remove wood fibers, allowing the chain to cut rapidly through clean wood.
Compared with STIHL RAPID Micro semi-chisel chain, RAPID Super generally provides faster cutting performance under favorable conditions. However, the sharp cutter corners are more sensitive to dirt, sand, and other abrasive materials, making proper maintenance and sharpening especially important.
STIHL's specially engineered cutter and tie strap design helps reduce vibration while preserving the aggressive cutting performance of the full-chisel cutters. This combination makes RAPID Super an excellent choice for professional forestry, logging, and high-production cutting applications.
For best performance, RAPID Super should be used primarily in clean woodcutting conditions. Operators regularly cutting dirty wood, roots, or abrasive materials may benefit from a semi-chisel or carbide chain instead.
STIHL OILOMATIC® Lubrication System
STIHL RAPID Super saw chain incorporates the OILOMATIC® lubricating system. Specially engineered lubrication slots in the drive links help channel bar oil toward the rivets and other critical wear areas while the chain is operating.
Directing lubrication to these high-wear areas helps reduce friction and wear, maximizes the effectiveness of the bar and chain oil, and contributes to longer service life.
The chain is also factory pre-stretched to help reduce excessive chain tension adjustments during the initial break-in period.
Fits Saw Systems Using These Chain Specifications
Required Chain Specifications: 18" Bar, 3/8" Pitch, .050" Gauge, 66 Drive Links
This chain is designed for compatible professional chainsaws equipped with a guide bar and drive sprocket system requiring 3/8" pitch, .050" (1.3 mm) gauge, and exactly 66 drive links.
Recommended Saw: 036, 039, 044, 046, 066, MS310, MS311, MS360, MS361, MS362, MS390, MS391, MS400,
Important: Chainsaws may use different bar lengths, gauges, and drive-link counts depending on their configuration. Always verify the specifications stamped on your guide bar or compare them with your existing chain before ordering.
Common Applications
- Professional forestry operations
- Commercial logging
- Tree felling
- Log bucking
- Tree limbing
- Professional tree removal
- Firewood production
- Hardwood cutting
- Frozen wood cutting
- Storm-damaged tree removal
- Land clearing
- Farm and acreage maintenance
- Professional plunge-cutting applications
- High-production woodcutting
- Clean cutting conditions where maximum cutting speed is desired
Frequently Purchased Together
- STIHL 18" guide bar for 3/8" pitch, .050" gauge chain – verify 66-drive-link requirement
- STIHL 5.2 mm (13/64") round sharpening file
- STIHL sharpening file holder
- STIHL depth gauge tool
- STIHL bar and chain oil
- Replacement 3/8" drive sprocket
- Replacement 18" guide bar
- Guide bar groove cleaner
- STIHL chain sharpening kit
- Replacement air filter
- Replacement spark plug
Installation & Sharpening Tips
- Shut off the chainsaw and disconnect the spark plug or remove the battery before servicing the cutting attachment.
- Verify that your guide bar requires an 18" chain with 3/8" pitch, .050" gauge, and exactly 66 drive links.
- Do not select this chain based on 18" bar length alone. Pitch, gauge, and drive-link count must all match.
- Confirm that the guide bar groove is designed for .050" (1.3 mm) gauge drive links.
- Make sure the guide bar nose and drive sprocket are compatible with standard 3/8" pitch chain.
- Clean the guide bar groove and oil passages before installing the new chain.
- Inspect the guide bar and drive sprocket for excessive or uneven wear before installing a new chain.
- Install the chain with the cutting edges facing forward across the top of the guide bar.
- Make sure all 66 drive links are properly seated in the guide bar groove and sprocket.
- Adjust chain tension according to the STIHL operator's manual.
- Although the chain is factory pre-stretched, recheck chain tension after initial operation and periodically during use.
- Confirm that the OILOMATIC® lubrication system is receiving an adequate supply of clean bar and chain oil.
- Use a 5.2 mm (13/64") round file when hand-sharpening this chain.
- Maintain the proper sharpening angle, file position, and depth gauge settings according to STIHL's sharpening instructions.
- Keep cutter lengths consistent on both sides of the chain to maintain straight, smooth cutting.
- Full-chisel cutters are sensitive to dirt, sand, and abrasive materials. Avoid ground contact and clean contaminated wood whenever possible.
- Inspect cutters regularly for dullness, damage, or chipped cutting corners.
- Sharpen the chain promptly when cutting performance decreases or the saw begins producing fine sawdust instead of normal wood chips.
- Professional Safety: This chain does not incorporate significant kickback-reduction features and should be used only by trained, experienced operators following the chainsaw manufacturer's safety instructions.
Why Choose STIHL RAPID Super Chains?
STIHL RAPID™ Super chains are engineered for professional operators who demand aggressive cutting performance, fast production, and dependable durability. The full-chisel cutter design delivers exceptional cutting speed in clean wood, while STIHL's reduced-vibration construction, OILOMATIC® lubrication system, and factory pre-stretching help provide smoother operation and extended chain life.
Designed for demanding forestry, logging, felling, bucking, and limbing applications, RAPID Super is an excellent choice for experienced operators using higher-powered chainsaws. STIHL OEM 3623 005 0066 is the 33 RS configuration for cutting systems requiring an 18" bar, 3/8" pitch, .050" gauge, and 66 drive links.