{"product_id":"stihl-20-inch-chainsaw-guide-bar-st-3003-008-6821","title":"STIHL 20 Inch Chainsaw Bar Guide ST OEM Replacement Part 3003-008-6821","description":"\u003cdiv style=\"font-family: Arial, sans-serif; max-width: 800px; margin: 0 auto; color: #1a2332;\"\u003e\n\n  \u003c!-- HERO BANNER --\u003e\n  \u003cdiv style=\"background: #f47216; border-radius: 8px; padding: 30px; display: flex; flex-direction: row; align-items: center; gap: 24px; margin-bottom: 16px;\"\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0245\/2416\/1070\/files\/Stihl_Logo.png?v=1777133752\" alt=\"STIHL Logo\" style=\"max-height: 80px; max-width: 200px; object-fit: contain;\"\u003e\n    \u003cdiv style=\"font-size: 24px; font-weight: 700; color: #ffffff; line-height: 1.3;\"\u003e20\" ST Guide Bar — OEM Replacement Part 3003-008-6821\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- PRODUCT HEADLINE --\u003e\n  \u003cdiv style=\"background: #ffffff; border-radius: 8px; padding: 24px; text-align: center; margin-bottom: 16px;\"\u003e\n    \u003cdiv style=\"font-size: 24px; font-weight: 700; color: #1a2332;\"\u003eSTIHL 3003-008-6821 — 20-Inch ST Chainsaw Guide Bar\u003c\/div\u003e\n    \u003cdiv style=\"font-size: 15px; color: #6b7280; margin-top: 8px;\"\u003eAlso known as: 20 inch bar, ST bar, STIHL guide bar, chainsaw sword, bar and chain guide\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SHIPPING CALLOUT --\u003e\n  \u003cdiv style=\"background: #16a34a; border-radius: 6px; padding: 14px; text-align: center; margin-bottom: 16px;\"\u003e\n    \u003cspan style=\"color: #ffffff; font-weight: 700; font-size: 14px;\"\u003e🚚 Orders Before 2PM Ship Same Day!\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- TRUST SIGNAL ROW --\u003e\n  \u003cdiv style=\"background: #f9fafb; border-radius: 6px; padding: 16px; text-align: center; margin-bottom: 16px;\"\u003e\n    \u003cspan style=\"font-weight: 700; font-size: 14px; text-transform: uppercase; color: #1a2332; letter-spacing: 1px;\"\u003eGENUINE OEM   ·   SAME-DAY SHIP   ·   EXPERT SUPPORT\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SPECIFICATIONS --\u003e\n  \u003cdiv style=\"background: #f0fdfa; border-radius: 6px; padding: 20px; margin-bottom: 16px;\"\u003e\n    \u003cdiv style=\"font-size: 18px; font-weight: 700; color: #1a2332; border-bottom: 3px solid #f47216; padding-bottom: 8px; margin-bottom: 16px;\"\u003eSpecifications\u003c\/div\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; background: #ffffff; border-radius: 6px; overflow: hidden;\"\u003e\n      \u003cthead\u003e\n        \u003ctr style=\"background: #1a2332;\"\u003e\n          \u003cth style=\"padding: 12px 16px; color: #ffffff; font-weight: 700; text-align: left; border: 1px solid #e5e7eb;\"\u003eSpecification\u003c\/th\u003e\n          \u003cth style=\"padding: 12px 16px; color: #ffffff; font-weight: 700; text-align: left; border: 1px solid #e5e7eb;\"\u003eDetail\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr style=\"background: #ffffff;\"\u003e\n          \u003ctd style=\"padding: 12px 16px; border: 1px solid #e5e7eb; font-weight: 600;\"\u003ePart Number\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 16px; border: 1px solid #e5e7eb;\"\u003e3003-008-6821\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f9fafb;\"\u003e\n          \u003ctd style=\"padding: 12px 16px; border: 1px solid #e5e7eb; font-weight: 600;\"\u003eBrand\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 16px; border: 1px solid #e5e7eb;\"\u003eSTIHL\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #ffffff;\"\u003e\n          \u003ctd style=\"padding: 12px 16px; border: 1px solid #e5e7eb; font-weight: 600;\"\u003eBar Length\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 16px; border: 1px solid #e5e7eb;\"\u003e20 Inches (50 cm)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f9fafb;\"\u003e\n          \u003ctd style=\"padding: 12px 16px; border: 1px solid #e5e7eb; font-weight: 600;\"\u003eBar Type\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 16px; border: 1px solid #e5e7eb;\"\u003eST (Standard)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #ffffff;\"\u003e\n          \u003ctd style=\"padding: 12px 16px; border: 1px solid #e5e7eb; font-weight: 600;\"\u003ePart Type\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 16px; border: 1px solid #e5e7eb;\"\u003eGuide Bar \/ Chainsaw Bar\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f9fafb;\"\u003e\n          \u003ctd style=\"padding: 12px 16px; border: 1px solid #e5e7eb; font-weight: 600;\"\u003eOEM \/ Aftermarket\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 16px; border: 1px solid #e5e7eb;\"\u003eGenuine OEM\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- INTRO PARAGRAPH --\u003e\n  \u003cdiv style=\"background: #fffbeb; border-radius: 6px; padding: 20px; margin-bottom: 16px;\"\u003e\n    \u003cp style=\"font-size: 15px; line-height: 1.7; margin: 0;\"\u003eThe \u003cstrong style=\"color: #f47216;\"\u003eSTIHL 3003-008-6821\u003c\/strong\u003e is a genuine OEM 20-inch ST guide bar, also commonly referred to as a chainsaw bar, guide sword, or cutting bar, designed as a direct replacement for select \u003cstrong style=\"color: #f47216;\"\u003eSTIHL\u003c\/strong\u003e chainsaw models. This bar provides the rigid, precision-milled guide track that keeps the saw chain in proper alignment throughout the cutting stroke, making it essential for safe and efficient timber felling, limbing, and bucking operations. As a factory-original component, it meets the exact tolerances and material specifications set by STIHL, ensuring reliable performance and proper chain fit without modification.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ACCORDION 1: KEY FEATURES --\u003e\n  \u003cdetails style=\"background: white; border: 1px solid #e5e7eb; border-radius: 8px; margin-bottom: 12px; overflow: hidden;\"\u003e\n    \u003csummary style=\"cursor: pointer; padding: 16px 20px; background: #f9fafb; font-weight: 700; font-size: 16px; color: #1a2332; list-style: none; display: flex; justify-content: space-between; align-items: center; border-left: 4px solid #f47216;\"\u003eKey Features\u003cspan style=\"font-size: 14px; color: #6b7280;\"\u003e▼\u003c\/span\u003e\u003c\/summary\u003e\n    \u003cdiv style=\"padding: 20px; background: #f1f5f9;\"\u003e\n      \u003cdiv style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 16px;\"\u003e\n\n        \u003cdiv style=\"background: #ffffff; border: 1px solid #e5e7eb; border-radius: 8px; padding: 20px; border-top: 4px solid #f47216;\"\u003e\n          \u003cdiv style=\"font-weight: 700; font-size: 15px; color: #1a2332; margin-bottom: 8px;\"\u003eSTIHL OEM 20-Inch ST Guide Bar Specs\u003c\/div\u003e\n          \u003cp style=\"font-size: 14px; color: #4b5563; line-height: 1.6; margin: 0;\"\u003eThe STIHL 3003-008-6821 is a 20-inch ST-type guide bar manufactured to OEM specifications. The ST designation indicates a standard-profile bar engineered for the power output range of mid-class and professional STIHL chainsaw models, offering the correct pitch, gauge, and drive link slot alignment for factory-approved chain fitment.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv style=\"background: #ffffff; border: 1px solid #e5e7eb; border-radius: 8px; padding: 20px; border-top: 4px solid #f47216;\"\u003e\n          \u003cdiv style=\"font-weight: 700; font-size: 15px; color: #1a2332; margin-bottom: 8px;\"\u003eBest Uses for a 20-Inch STIHL Chainsaw Bar\u003c\/div\u003e\n          \u003cp style=\"font-size: 14px; color: #4b5563; line-height: 1.6; margin: 0;\"\u003eA 20-inch chainsaw guide bar is well suited for felling medium to large-diameter trees, bucking logs, and heavy limbing tasks. Part 3003-008-6821 provides the reach needed for productive cutting on hardwoods and softwoods alike, making it a practical choice for both landowners and professional arborists using compatible STIHL saws.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv style=\"background: #ffffff; border: 1px solid #e5e7eb; border-radius: 8px; padding: 20px; border-top: 4px solid #f47216;\"\u003e\n          \u003cdiv style=\"font-weight: 700; font-size: 15px; color: #1a2332; margin-bottom: 8px;\"\u003eGenuine STIHL OEM Part vs Aftermarket Bar\u003c\/div\u003e\n          \u003cp style=\"font-size: 14px; color: #4b5563; line-height: 1.6; margin: 0;\"\u003eUnlike third-party bars, the STIHL 3003-008-6821 is a factory-original replacement part produced to the same standards as the bar that shipped with your saw. Using a genuine OEM bar ensures correct chain tension behavior, proper oiler port alignment, and consistent sprocket nose engagement — reducing wear on both the bar and chain.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv style=\"background: #ffffff; border: 1px solid #e5e7eb; border-radius: 8px; padding: 20px; border-top: 4px solid #f47216;\"\u003e\n          \u003cdiv style=\"font-weight: 700; font-size: 15px; color: #1a2332; margin-bottom: 8px;\"\u003eCompatible STIHL Chainsaw Models for Part 3003-008-6821\u003c\/div\u003e\n          \u003cp style=\"font-size: 14px; color: #4b5563; line-height: 1.6; margin: 0;\"\u003ePart number 3003-008-6821 is designed to fit specific STIHL chainsaw models that accept a 20-inch ST guide bar. Always verify your saw's bar mount, sprocket pitch, and gauge requirements against the bar specifications before installation to ensure full compatibility and safe operation.\u003c\/p\u003e\n        \u003c\/div\u003e\n\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- ACCORDION 2: COMPATIBLE EQUIPMENT --\u003e\n  \u003cdetails style=\"background: white; border: 1px solid #e5e7eb; border-radius: 8px; margin-bottom: 12px; overflow: hidden;\"\u003e\n    \u003csummary style=\"cursor: pointer; padding: 16px 20px; background: #f9fafb; font-weight: 700; font-size: 16px; color: #1a2332; list-style: none; display: flex; justify-content: space-between; align-items: center; border-left: 4px solid #f47216;\"\u003eCompatible Equipment\u003cspan style=\"font-size: 14px; color: #6b7280;\"\u003e▼\u003c\/span\u003e\u003c\/summary\u003e\n    \u003cdiv style=\"padding: 20px;\"\u003e\n      \u003cp style=\"font-size: 15px; color: #4b5563; line-height: 1.7; margin-bottom: 16px;\"\u003eSTIHL guide bar part \u003cstrong\u003e3003-008-6821\u003c\/strong\u003e is a 20-inch ST bar engineered to fit compatible STIHL chainsaw models that require this bar length and bar type. Typical STIHL models that may use a 20-inch ST guide bar matching part 3003-008-6821 include mid-range and professional-grade saws such as the MS 271, MS 291, MS 311, MS 391, and MS 362, among others sharing the same mount specifications. Always confirm your specific model's bar requirements before ordering.\u003c\/p\u003e\n      \u003cp style=\"font-size: 15px; color: #4b5563; line-height: 1.7; margin-bottom: 12px;\"\u003eModels that may be compatible with STIHL 3003-008-6821 include the MS 271, MS 291, MS 311, MS 391, and MS 362, all of which commonly accept a 20-inch guide bar in the ST configuration. Verify pitch, gauge, and drive link count for your specific unit.\u003c\/p\u003e\n      \u003cul style=\"font-size: 14px; color: #4b5563; line-height: 2; padding-left: 20px;\"\u003e\n        \u003cli\u003eSTIHL MS 271\u003c\/li\u003e\n        \u003cli\u003eSTIHL MS 291\u003c\/li\u003e\n        \u003cli\u003eSTIHL MS 311\u003c\/li\u003e\n        \u003cli\u003eSTIHL MS 391\u003c\/li\u003e\n        \u003cli\u003eSTIHL MS 362\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- ACCORDION 3: COMMON QUESTIONS --\u003e\n  \u003cdetails style=\"background: white; border: 1px solid #e5e7eb; border-radius: 8px; margin-bottom: 12px; overflow: hidden;\"\u003e\n    \u003csummary style=\"cursor: pointer; padding: 16px 20px; background: #f9fafb; font-weight: 700; font-size: 16px; color: #1a2332; list-style: none; display: flex; justify-content: space-between; align-items: center; border-left: 4px solid #f47216;\"\u003eCommon Questions\u003cspan style=\"font-size: 14px; color: #6b7280;\"\u003e▼\u003c\/span\u003e\u003c\/summary\u003e\n    \u003cdiv style=\"padding: 20px;\"\u003e\n\n      \u003cdiv style=\"background: #ffffff; border: 1px solid #e5e7eb; border-radius: 8px; padding: 16px; margin-bottom: 12px;\"\u003e\n        \u003cp style=\"font-size: 15px; font-weight: 700; color: #1a2332; margin: 0 0 8px 0;\"\u003eQ: What is STIHL part number 3003-008-6821?\u003c\/p\u003e\n        \u003cp style=\"font-size: 14px; color: #6b7280; margin: 0; line-height: 1.6;\"\u003eA: STIHL 3003-008-6821 is a genuine OEM 20-inch ST guide bar, also called a chainsaw bar or cutting bar, used as a direct replacement on compatible STIHL chainsaw models that require this bar length and profile.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"background: #ffffff; border: 1px solid #e5e7eb; border-radius: 8px; padding: 16px; margin-bottom: 12px;\"\u003e\n        \u003cp style=\"font-size: 15px; font-weight: 700; color: #1a2332; margin: 0 0 8px 0;\"\u003eQ: Will a 20-inch STIHL ST bar fit my MS 271 or MS 291?\u003c\/p\u003e\n        \u003cp style=\"font-size: 14px; color: #6b7280; margin: 0; line-height: 1.6;\"\u003eA: The STIHL MS 271 and MS 291 are among the common models that accept a 20-inch guide bar. However, you should verify the exact bar mount type, chain pitch, and gauge required for your specific saw before installing part 3003-008-6821 to ensure proper fit and safe operation.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"background: #ffffff; border: 1px solid #e5e7eb; border-radius: 8px; padding: 16px; margin-bottom: 12px;\"\u003e\n        \u003cp style=\"font-size: 15px; font-weight: 700; color: #1a2332; margin: 0 0 8px 0;\"\u003eQ: Is the STIHL 3003-008-6821 bar a genuine OEM part or aftermarket?\u003c\/p\u003e\n        \u003cp style=\"font-size: 14px; color: #6b7280; margin: 0; line-height: 1.6;\"\u003eA: Part 3003-008-6821 is a genuine OEM STIHL guide bar, manufactured to factory specifications. It is not an aftermarket or third-party reproduction, which means it delivers the precise fit, oil port alignment, and chain groove dimensions required for safe and efficient operation on compatible STIHL saws.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv style=\"background: #ffffff; border: 1px solid #e5e7eb; border-radius: 8px; padding: 16px; margin-bottom: 12px;\"\u003e\n        \u003cp style=\"font-size: 15px; font-weight: 700; color: #1a2332; margin: 0 0 8px 0;\"\u003eQ: How do I know when to replace my STIHL chainsaw guide bar?\u003c\/p\u003e\n        \u003cp style=\"font-size: 14px; color: #6b7280; margin: 0; line-height: 1.6;\"\u003eA: You should replace your STIHL guide bar when you notice the bar rails are pinched or uneven, the bar groove is excessively worn causing chain wobble, the sprocket nose does not spin freely, or the bar is bent or cracked. Replacing a worn bar with a genuine STIHL part like 3003-008-6821 restores cutting accuracy and extends chain life.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003c!-- CLOSING TRUST BAR --\u003e\n  \u003cdiv style=\"background: #1a2332; border-radius: 6px; padding: 18px; text-align: center; margin-top: 16px;\"\u003e\n    \u003cdiv style=\"font-weight: 700; font-size: 15px; color: #ffffff; letter-spacing: 1px;\"\u003eGenuine OEM Quality   ·   Same-Day Shipping   ·   Expert Support\u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Stihl","offers":[{"title":"Default Title","offer_id":42307715137582,"sku":null,"price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0245\/2416\/1070\/files\/STIHL_20_inch_ST_guide_bar_for_professional_chainsaw_cutting_and_timber_work.jpg?v=1777398041","url":"https:\/\/www.peachcountrytractor.com\/products\/stihl-20-inch-chainsaw-guide-bar-st-3003-008-6821","provider":"Peach Country Tractor","version":"1.0","type":"link"}