33RM 84E C Saw Chain — Part No. 3650-005-0084
STIHL 3650-005-0084 — 33RM 84E C Saw Chain
Also known as: STIHL Rapid Micro 3 Chain, RM3 84-Drive Link Chain, 3/8" pitch saw chain
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Specifications
| Specification |
Detail |
| Part Number |
3650-005-0084 |
| Brand |
STIHL |
| Chain Model |
33RM 84E C (Rapid Micro 3) |
| Pitch |
3/8" |
| Drive Links |
84 |
| Gauge |
0.050" (1.3mm) |
| Chain Type |
Full-chisel, semi-skip |
| OEM / Aftermarket |
Genuine OEM |
The STIHL 33RM 84E C is a genuine OEM replacement saw chain carrying part number 3650-005-0084, designed for use on STIHL gas-powered chainsaws requiring a 3/8" pitch, 84 drive-link chain with a 0.050" gauge. Commonly referred to as the Rapid Micro 3 chain or RM3 chain, this model features semi-skip cutter sequencing suited to both cross-cutting and general-purpose felling tasks. It fits a range of mid-bar-length STIHL chainsaw models and is the factory-specified chain for those applications, ensuring correct tension, fit, and cutting geometry right out of the packaging.
Key Features▼
3/8" Pitch 0.050" Gauge Chainsaw Chain
Part 3650-005-0084 runs a standard 3/8" pitch with a 0.050" (1.3mm) gauge, matching the factory-specified dimensions for compatible STIHL bars. This ensures proper drive-link engagement and reduces wear on the bar rails over time.
General-Purpose Felling and Cross-Cut Performance
The STIHL 33RM 84E C Rapid Micro 3 chain is engineered for clean, efficient cutting in hardwood and softwood. Its semi-skip cutter layout reduces vibration and kickback tendency compared to full-skip configurations, making it well-suited to both professional logging tasks and homeowner firewood cutting.
Genuine STIHL OEM Part — Not Aftermarket
This chain is a direct factory replacement sourced from STIHL, not a third-party copy. Genuine OEM part 3650-005-0084 meets STIHL's original manufacturing tolerances for cutter geometry, hardness, and rivet tensile strength, preserving the warranty on your saw and delivering predictable sharpening behavior.
84 Drive-Link Count for Mid-Length STIHL Bars
With 84 drive links, the STIHL 3650-005-0084 is sized for mid-length guide bars typically in the 18"–20" range on qualifying STIHL chainsaw models. Always verify your bar's drive-link count before ordering to confirm correct fitment.
Compatible Equipment▼
STIHL saw chain part 3650-005-0084 (33RM 84E C) is compatible with a range of STIHL chainsaw models that accept a 3/8" pitch, 0.050" gauge, 84 drive-link chain. Compatible models using part number 3650-005-0084 include the STIHL MS 271, MS 291, MS 311, MS 362, and MS 391, among others equipped with the matching bar specification. Always confirm your guide bar's drive-link slot count and gauge marking before installation.
- STIHL MS 271
- STIHL MS 291
- STIHL MS 311
- STIHL MS 362
- STIHL MS 391
- Any STIHL chainsaw using a 3/8" pitch, 0.050" gauge, 84 drive-link guide bar
Common Questions▼
Q: What bar length does STIHL 3650-005-0084 fit?
A: The STIHL 33RM 84E C chain (part 3650-005-0084) with 84 drive links is typically matched to 18" to 20" guide bars on compatible STIHL saws. The exact bar length also depends on the nose sprocket style, so confirm the drive-link count stamped on your bar before purchasing.
Q: What is the difference between the STIHL Rapid Micro 3 and Rapid Micro chain types?
A: The Rapid Micro 3 (RM3), which includes the 33RM chain series, uses a semi-skip cutter arrangement rather than full-skip. This means every third link has a cutter rather than every other, resulting in lower vibration and smoother cutting in medium-diameter timber compared to full-skip designs used in very large-diameter wood.
Q: Is part number 3650-005-0084 a genuine STIHL OEM chain?
A: Yes. STIHL part 3650-005-0084 is a genuine factory OEM saw chain produced to STIHL's original specifications. It is not a compatible aftermarket replacement. Using genuine OEM parts preserves your equipment warranty and ensures consistent sharpening and cutting performance.
Q: What file size do I use to sharpen the STIHL 33RM 84E C chain?
A: The STIHL 33RM 84E C (3650-005-0084) uses a 3/16" (4.8mm) round file for hand sharpening. STIHL recommends maintaining a 30-degree filing angle and a 10-degree top-plate angle. Consistent sharpening depth and angle across all cutters will keep this chain cutting at peak efficiency.
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