Description
Overview:
This is a genuine Stihl RS (Rapid Super) 18 inch (45 cm) chain loop with 66 drive links for high-performance wood cutting. Built from durable steel for long service life, it is designed to deliver fast, smooth cuts with controlled vibration. The chain suits professional and demanding domestic users alike and is suitable for many Stihl petrol and electric chainsaws, including MS 260 and MS 261. Key specifications: 3/8 inch pitch (9.53 mm) and 0.063 inch (1.6 mm) gauge. Manufacturer part number: 3621 003 0066. Use this chain with a compatible 18 inch (45 cm) guide bar that matches the same pitch, gauge and drive link count.
Key Features:
- Genuine Stihl part for assured fit and performance
- RS (Rapid Super) chain type for fast, smooth cutting with minimal chatter
- 18 inch (45 cm) length with 66 drive links for the correct bar set-up
- 3/8 inch (9.53 mm) pitch and 0.063 inch (1.6 mm) gauge to match common Stihl bars
- Low-vibration design helps reduce operator fatigue and improves control
- Durable steel construction for long-lasting sharpness and reliability
- Easy to fit when bar specifications match (pitch/gauge/drive links)
- Suitable for professional forestry, arborist and heavy-duty site work
- Compatible with a wide range of Stihl models (see list below)
Typical Applications:
Ideal for felling, snedding/limbing, bucking firewood, and processing construction timber. Well-suited to forestry, arboriculture, landscaping, and grounds maintenance where fast, accurate cutting and consistent feed are required on 18 inch (45 cm) setups.
Also known as:
Chainsaw chain, cutter chain, 66 DL chain loop, bar chain, 3/8 x 0.063 chain, woodcutting chain, RS loop, drive link chain for 18 inch (45 cm) bars.
Fits Models:
024, 026, 028, 028 AV, 029, 030, 031, 032, 034, 036, 036 QS, 038, 039, 041, 041 AV, 041 FB, 041 G, 042 AV, 044, 045, 046, 048, 050, 051, 056, 064, 066, 075, 076, 08 S, 084, 088, E 20, E 220, MS 260, MS 260 C, MS 261, MS 261 C, MS 270, MS 270 C, MS 271, MS 271 C, MS 280, MS 280 C, MS 290, MS 291, MS 291 C, MS 310, MS 311, MS 340, MS 360, MS 360 C, MS 361, MS 361 C, MS 362, MS 362 C, MS 390, MS 391, MS 440, MS 441, MS 441 C, MS 460, MS 461, MS 462, MS 462 C-M, MS 500i, MS 651, MS 660, MS 661, MS 661 C, MS 880, MS260, MS260C, MS261, MS261C, MS270, MS270C, MS271, MS271C, MS280, MS280C, MS290, MS291, MS291C, MS310, MS311, MS360, MS360C, MS361, MS361C, MS362, MS362C, MS390, MS391, MS440, MS441, MS441C, MS460, MS461, MS462, MS462C, MS462C-M, MS462CM, MS500i, MS651, MS660, MS661, MS661C, MS880, MSE 220, MSE 220 C, MSE 250 C, MSE220, MSE220C, MSE250 C, MSE250C
Alternate Part Numbers:
3621 000 0066, 3621-003-0066, 36210030066, 36210000066
Product Specifications
| L&S Part No. | 3621 003 0066 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| Unit of Sale | 1 |
| Applications | 024, 026, 028, 028 AV, 028AV, 029, 030, 031, 032, 034, 036, 036 QS, 036QS, 038, 039, 041, 041 AV, 041 FB, 041 G, 041AV, 041FB, 041G, 042 AV, 042AV, 044, 045, 046, 048, 050, 051, 056, 064, 066, 075, 076, 08 S, 084, 088, 08S, E 20, E 220, E20, E220, MS 260, MS 260 C, MS 261, MS 261 C, MS 270, MS 270 C, MS 271, MS 271 C, MS 280, MS 280 C, MS 290, MS 291, MS 291 C, MS 310, MS 311, MS 360, MS 360 C, MS 361, MS 361 C, MS 362, MS 362 C, MS 390, MS 391, MS 440, MS 441, MS 441 C, MS 460, MS 461, MS 462 C-M, MS 500i, MS 651, MS 660, MS 661, MS 661 C, MS 880, MS260, MS260C, MS261, MS261C, MS270, MS270C, MS271, MS271C, MS280, MS280C, MS290, MS291, MS291C, MS310, MS311, MS340, MS360, MS360C, MS361, MS361C, MS362, MS362C, MS390, MS391, MS440, MS441, MS441C, MS460, MS461, MS462, MS462C, MS462C-M, MS462CM, MS500i, MS651, MS660, MS661, MS661C, MS880, MSE 220, MSE 220 C, MSE 250 C, MSE220, MSE220C, MSE250 C, MSE250C |
| Machine Type | Chainsaws |
| Fits Brands | Stihl |
| Fits Models | 030, 031 | 029, 039 | MS340 | MS360, MS360C | MS260, MS260C | MS290, MS310, MS390 | MS270, MS270C, MS280, MS280C | 028, 028AV | MS361, MS361C | MS440 | MS460 | 08S | MS362, MS362C | MS261, MS261C | MS441, MS441C | 024 | 026 | 032 | 034 | MS271, MS271C, MS291, MS291C | MS311 | MS391 | MS461 | MS462, MS462C | MS651 | MS660 | MS661, MS661C | MS880 | 036 | 036QS | 038 | 041 | 042 AV | 044 | 046 | 048 | 050, 051 | 056 | 064 | 076 | 075 | 084 | 088 | E20, E220 | MSE220, MSE220C | MSE250 C | 045 | 066 | MS500i |
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