Fluidampr (800121)
815293001654
$660.96
$734.40
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In Stock
Compatibility
- Platform
- Universal — verify fitment for your application
- Vehicle-specific fitment
- Review application details below
- Need help?
- Confirm fitment with us before ordering — (714) 202-7886
We list the engine platform a part is built for. That is not year-and-trim application data, so it does not confirm a fit on your specific vehicle.
- Est. install labor: 3.0 hrs — $375 at $125/hr. Pick Install at HRC and a 20% labor deposit ($75) is due at checkout; the balance is due at completion.
- An estimate for a stock vehicle, not a quote — we confirm it in writing when you book, before any labor is authorized. Seized hardware, prior modifications, diagnosis and machine work are quoted separately; tuning is arranged through our tuning partner. Questions: (714) 202-7886.
- Warranty & track disclaimer — read before you race it.
- Shipping & returns — rates and RMA terms.
- Installed in-house in Huntington Beach, CA — labor & service policy.
- Affirm and PayPal available at checkout.
More ways to pay at checkout
Protect your engine. Modifications can compromise your stock harmonic balancer. Install a Fluidampr performance damper early for best durability. Superior viscous damper design controls harmful torsional vibration across the entire rpm range. Reduce wear on engine components. Reduce risk of crankshaft failure. Improve timing. Unleash lost torque and horsepower. Precision CNC machined and balanced high-grade steel components. Corrosion resistant black zinc finish with engraved timing marks. No maintenance required. Trusted by leading engine builders worldwide. SFI 18.1 certified. Made in USA.
| Part Type | Engine Harmonic Balancer |
|---|---|
| Title | Fluidampr - 800121 - Harmonic Balancer - Fluidampr - BBC - Ext Balance - Dual Key - Each |
| Safety Rating | SFI 18.1 |
| Prop 65 Yes/No | Yes |
| Prop 65 (C, R, or CR) | CR |
| Prop 65 - Short Label | WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov |
| Material | Steel |
| Degree Marking Range | 50 BTDC to 10 ATDC. Additional timing/degree marks at 90, 180 and 270 |
| Keyway Spec | Dual; (1/4", 1/4") |
| Finish | Black Zinc |
| Engine Balance | External (34.5 oz) |
| Degree Markings | Engraved |
| Weight / Rotating Weight | 17.0 lbs / 11.3 lbs |
| 6597 | No |
| 806 | 2.685" |
| 3390 | Performance |
| 18 | 1.599" |
| 6637 | Yes |
| 835 | 1.599" |
| 356 | 1 |
| 25 | 8" |
| Weight | 17 lb |
| UPC | 815293001654 |
| Country of Origin | USA |
Verified fitment · 776 applications
- Chevrolet Avalanche 2500 8.1L (2002–2003)
- Chevrolet B7 7.4L (1999–2000)
- Chevrolet B7 8.1L (2001–2002)
- Chevrolet Bel Air 7.4L (1970–1975)
- Chevrolet Biscayne 7.4L (1970–1972)
- Chevrolet Blazer 7.4L (1973–1974)
- Chevrolet Brookwood 7.4L (1970–1972)
- Chevrolet C10 7.4L (1975–1980)
- Chevrolet C10 Pickup 7.4L (1973–1974)
- Chevrolet C10 Suburban 7.4L (1973–1980)
- Chevrolet C1500 7.4L (1990–1993)
- Chevrolet C20 7.4L (1975–1986)
- Chevrolet C20 Pickup 7.4L (1973–1974)
- Chevrolet C20 Suburban 7.4L (1973–1986)
- Chevrolet C2500 7.4L (1991–2000)
- Chevrolet C2500 Suburban 7.4L (1992–1999)
- Chevrolet C30 7.4L (1975–1986)
- Chevrolet C30 Pickup 7.4L (1973–1974)
- Chevrolet C3500 7.4L (1988–2000)
- Chevrolet C3500HD 7.4L (1991–2000)
- Chevrolet C3500HD 8.1L (2001–2002)
- Chevrolet C4500 Kodiak 8.1L (2009)
- Chevrolet C5500 Kodiak 8.1L (2009)
- Chevrolet C6500 Kodiak 7.4L (1999)
- Chevrolet C6500 Kodiak 8.1L (2009)
- Chevrolet C70 7.4L (1979–1980)
- Chevrolet C7500 Kodiak 7.4L (1999)
- Chevrolet C7500 Kodiak 8.1L (2009)
- Chevrolet C8500 8.1L (2003–2009)
- Chevrolet Caprice 7.4L (1970–1976)
- Chevrolet Chevelle 7.4L (1970–1973)
- Chevrolet Corvette 7.4L (1970–1974)
- Chevrolet El Camino 7.4L (1970–1975)
- Chevrolet Estate 7.4L (1970)
- Chevrolet Express 3500 7.4L (1996–2000)
- Chevrolet Express 3500 8.1L (2001–2002)
- Chevrolet G10 Van 7.4L (1973–1974)
- Chevrolet G20 7.4L (1976)
- Chevrolet G20 Van 7.4L (1973–1974)
- Chevrolet G30 7.4L (1975–1996)
- Chevrolet G30 Van 7.4L (1973–1974)
- Chevrolet GP3500 7.4L (1993–1996)
- Chevrolet Impala 7.4L (1970–1976)
- Chevrolet K10 7.4L (1976–1980)
- Chevrolet K10 Pickup 7.4L (1973–1974)
- Chevrolet K10 Suburban 7.4L (1973–1974)
- Chevrolet K20 7.4L (1976–1978)
- Chevrolet K20 Pickup 7.4L (1973–1974)
- Chevrolet K20 Suburban 7.4L (1973–1985)
- Chevrolet K2500 7.4L (1991–2000)
- Chevrolet K2500 Suburban 7.4L (1992–1999)
- Chevrolet K30 7.4L (1977–1986)
- Chevrolet K30 Pickup 7.4L (1973–1974)
- Chevrolet K3500 7.4L (1988–2000)
- Chevrolet K5 Blazer 7.4L (1976–1978)
- Chevrolet Kingswood 7.4L (1970–1972)
- Chevrolet Monte Carlo 7.4L (1970–1975)
- Chevrolet Nova 7.4L (1970–1971)
- Chevrolet P10 Van 7.4L (1973)
- Chevrolet P20 7.4L (1976–1979)
- Chevrolet P20 Van 7.4L (1970–1973)
- Chevrolet P30 7.4L (1975–1999)
- Chevrolet P30 Van 7.4L (1970–1974)
- Chevrolet R20 7.4L (1987–1988)
- Chevrolet R20 Suburban 7.4L (1987–1988)
- Chevrolet R2500 7.4L (1989)
- Chevrolet R2500 Suburban 7.4L (1989–1991)
- Chevrolet R30 7.4L (1987–1988)
- Chevrolet R3500 7.4L (1989–1991)
- Chevrolet Silverado 2500 HD 8.1L (2001–2003)
- Chevrolet Silverado 3500 8.1L (2001–2006)
- Chevrolet Silverado 3500 Classic 8.1L (2007)
- Chevrolet Suburban 2500 8.1L (2001–2003)
- Chevrolet Townsman 7.4L (1970–1972)
- Chevrolet V20 Suburban 7.4L (1987–1988)
- Chevrolet V2500 Suburban 7.4L (1990)
- Chevrolet V30 7.4L (1987–1988)
- Chevrolet V3500 7.4L (1989–1991)
- GMC B7 7.4L (1999–2000)
- GMC B7 8.1L (2001–2002)
- GMC C15 7.4L (1975–1978)
- GMC C15 Suburban 7.4L (1975–1978)
- GMC C15/C1500 Pickup 7.4L (1973–1974)
- GMC C15/C1500 Suburban 7.4L (1973–1974)
- GMC C1500 7.4L (1979–1980)
- GMC C1500 Suburban 7.4L (1979–1980)
- GMC C25 7.4L (1975–1978)
- GMC C25 Suburban 7.4L (1975–1978)
- GMC C25/C2500 Pickup 7.4L (1973–1974)
- GMC C25/C2500 Suburban 7.4L (1973–1974)
- GMC C2500 7.4L (1979–2000)
- GMC C2500 Suburban 7.4L (1979–1999)
- GMC C35 7.4L (1975–1978)
- GMC C35/C3500 Pickup 7.4L (1973–1974)
- GMC C3500 7.4L (1979–2000)
- GMC C3500HD 7.4L (1991–2000)
- GMC C3500HD 8.1L (2001–2002)
- GMC C4500 Topkick 8.1L (2009)
- GMC C5500 Topkick 8.1L (2009)
- GMC C6500 Topkick 7.4L (1999)
- GMC C6500 Topkick 8.1L (2009)
- GMC C7000 7.4L (1979–1980)
- GMC C7500 Topkick 7.4L (1999)
- GMC C7500 Topkick 8.1L (2009)
- GMC C8500 Topkick 8.1L (2003–2009)
- GMC G25 7.4L (1975–1976)
- GMC G35 7.4L (1976)
- GMC G35/G3500 Van 7.4L (1973–1974)
- GMC G3500 7.4L (1988–1996)
- GMC Jimmy 7.4L (1973–1976)
- GMC K15 7.4L (1976)
- GMC K15/K1500 Pickup 7.4L (1973–1974)
- GMC K15/K1500 Suburban 7.4L (1973–1974)
- GMC K1500 7.4L (1980)
- GMC K25 7.4L (1976–1978)
- GMC K25 Suburban 7.4L (1976–1977)
- GMC K25/K2500 Pickup 7.4L (1973–1974)
- GMC K25/K2500 Suburban 7.4L (1973–1974)
- GMC K2500 7.4L (1991–2000)
- GMC K2500 Suburban 7.4L (1992–1999)
- GMC K35/K3500 Pickup 7.4L (1973–1974)
- GMC K3500 7.4L (1979–2000)
- GMC P1500 7.4L (1979)
- GMC P25/P2500 Van 7.4L (1970–1971)
- GMC P35 7.4L (1975–1978)
- GMC P35/P3500 Van 7.4L (1970–1974)
- GMC P3500 7.4L (1979–1999)
- GMC R2500 7.4L (1987–1989)
- GMC R2500 Suburban 7.4L (1987–1991)
- GMC R3500 7.4L (1987–1991)
- GMC Savana 3500 7.4L (1996–2000)
- GMC Savana 3500 8.1L (2001–2002)
- GMC Sierra 2500 HD 8.1L (2001–2003)
- GMC Sierra 3500 8.1L (2001–2006)
- GMC Sierra 3500 Classic 8.1L (2007)
- GMC Sprint 7.4L (1971–1975)
- GMC V3500 7.4L (1987–1991)
- GMC Yukon XL 2500 8.1L (2001–2003)
| Part No. | 800121 |
|---|---|
| Brand | Fluidampr |
| Part Type | Engine Harmonic Balancer |
| Weight | 17 lb |
| UPC | 815293001654 |
| Country of Origin | USA |
Platform-level fitment (Ford + GM, Phase 1). We publish the engine platform a part is built for — not year-and-trim application data — so nothing here confirms a fit on a specific vehicle. Confirm fitment with us before ordering: (714) 202-7886.