{"product_id":"fluidampr-steel-externally-balanced-harmonic-damper-6-6l-duramax-2020-2026-gmc-sierra-2500hd","title":"Fluidampr Steel Externally Balanced Harmonic Damper - 6.6L Duramax | 2020-2026 GMC Sierra 2500HD","description":"\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Product\",\"name\":\"Fluidampr Steel Externally Balanced Harmonic Damper - 6.6L Duramax | 2020-2026 GMC Sierra 2500HD\",\"description\":\"Fits 2020-2026 GMC Sierra 2500HD. This viscous damper replaces the factory unit with CNC-machined high-grade steel components and a black zinc corrosion-resistant finish. The design reduces wear on the crankshaft, bearings, and timing gear while unleashing lost torque and horsepower.SFI 18.1 certified and race proven for over 35 years, it is the technology preferred by heavy duty diesel OEMs and leading performance diesel engine builders. No maintenance required.\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Fluidampr\"},\"offers\":{\"@type\":\"Offer\",\"availability\":\"https:\/\/schema.org\/InStock\",\"seller\":{\"@type\":\"Organization\",\"name\":\"Stateside Performance\"}},\"vehicleConfiguration\":\"2020-2026 GMC Sierra 2500HD\"}\u003c\/script\u003e\n\u003cstyle\u003e\n.sp-product-body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;font-size:16px;line-height:1.6;color:#1a1a1a;max-width:800px}\n.sp-product-body h2{font-size:1.15em;font-weight:700;margin:1.4em 0 .5em;padding-bottom:.3em;border-bottom:2px solid #f0f0f0;letter-spacing:-.01em}\n.sp-product-body p{margin:.6em 0;font-size:1em;line-height:1.65}\n.sp-product-body ul{padding-left:1.3em;margin:.5em 0}\n.sp-product-body li{margin:.35em 0;font-size:.97em;line-height:1.55}\n.sp-product-body li strong{color:#111}\n.sp-fitment-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:1em 0;border-radius:6px;border:1px solid #e2e2e2}\n.sp-fitment-table{width:100%;border-collapse:collapse;font-size:.88em;min-width:420px}\n.sp-fitment-table thead tr{background:#f7f7f7}\n.sp-fitment-table th{text-align:left;padding:9px 12px;font-weight:600;font-size:.82em;text-transform:uppercase;letter-spacing:.04em;color:#555;border-bottom:2px solid #e2e2e2;white-space:nowrap}\n.sp-fitment-table td{padding:8px 12px;border-bottom:1px solid #ebebeb;vertical-align:top;color:#2a2a2a}\n.sp-fitment-table tbody tr:last-child td{border-bottom:none}\n.sp-fitment-table tbody tr:nth-child(even){background:#fafafa}\n@media(max-width:600px){.sp-product-body{font-size:15px}.sp-product-body h2{font-size:1.1em}.sp-fitment-table{font-size:.83em}.sp-fitment-table th,.sp-fitment-table td{padding:7px 9px}}\n\u003c\/style\u003e\n\u003cdiv class=\"sp-product-body\"\u003e\n\u003cp\u003eThe Fluidampr Steel Externally Balanced Damper fits the 2020-2026 GMC Sierra 2500HD with the 6.6L Duramax and controls harmful torsional vibration across the entire RPM range.\u003c\/p\u003e\n\u003cdiv style=\"border:1px solid #f0c8b0;background:#fef5f0;padding:12px 16px;border-radius:8px;margin:16px 0;display:flex;align-items:flex-start;gap:12px\"\u003e\n\u003cspan style=\"font-size:24px;line-height:1;flex-shrink:0\" aria-hidden=\"true\"\u003e🔧\u003c\/span\u003e\u003cdiv style=\"flex:1\"\u003e\n\u003cstrong style=\"color:#b85a1f;font-size:15px\"\u003eInstall Difficulty: Professional Install Only\u003c\/strong\u003e\u003cdiv style=\"color:#444;font-size:14px;line-height:1.45;margin-top:2px\"\u003eCrankshaft damper replacement requires a harmonic balancer puller, installer tool, and front cover access; typically takes 2-3 hours with proper torque-to-yield bolt procedure.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThis viscous damper replaces the factory unit with CNC-machined high-grade steel components and a black zinc corrosion-resistant finish. The design reduces wear on the crankshaft, bearings, and timing gear while unleashing lost torque and horsepower.\u003c\/p\u003e\n\u003cp\u003eSFI 18.1 certified and race proven for over 35 years, it is the technology preferred by heavy duty diesel OEMs and leading performance diesel engine builders. No maintenance required.\u003c\/p\u003e\n\u003ch2\u003eFeatures \u0026amp; Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eFits: 2020-2026 GMC Sierra 2500HD\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFits 6.6L Duramax diesel only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eSFI 18.1 certified\u003c\/li\u003e\n\u003cli\u003eCNC-machined high-grade steel construction\u003c\/li\u003e\n\u003cli\u003eBlack zinc corrosion-resistant finish with engraved timing mark\u003c\/li\u003e\n\u003cli\u003eRemovable hard coat anodized aluminum fan pulley\u003c\/li\u003e\n\u003cli\u003eExternally balanced viscous damper design\u003c\/li\u003e\n\u003cli\u003eBroad RPM range vibration protection\u003c\/li\u003e\n\u003cli\u003eNo maintenance required\u003c\/li\u003e\n\u003cli\u003eMade in USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eThis part fits the following vehicles:\u003c\/p\u003e\n\u003cdiv class=\"sp-fitment-wrap\"\u003e\n\u003ctable class=\"sp-fitment-table\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2026\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eAT4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024-2026\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eAT4X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2021\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2026\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eDenali\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024-2026\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eDenali Ultimate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022-2026\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003ePro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2026\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eSLE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2026\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eSLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:12px 0;padding:10px 14px;background:#fff8e6;border-left:4px solid #f59e0b;border-radius:4px;font-size:.93em;line-height:1.5;color:#5a4a1a\"\u003e\n\u003cstrong\u003e⚠ Submodel Fitment:\u003c\/strong\u003e If your submodel is not listed in the fitment table above, we cannot confirm fitment. Please contact us before purchasing to verify.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluidampr","offers":[{"title":"Default Title","offer_id":59745070481489,"sku":"FDR830151","price":698.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/9029\/7425\/files\/d2ff65c06c40d5d4742b7643a2e255c0L_a859a3ae-0c25-4ed1-916e-b949aeb2d457.jpg?v=1783202944","url":"https:\/\/www.statesideperformance.com\/products\/fluidampr-steel-externally-balanced-harmonic-damper-6-6l-duramax-2020-2026-gmc-sierra-2500hd","provider":"Stateside Performance","version":"1.0","type":"link"}