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Protect your 2011–2017 GM/Chevy 6.6L Duramax LML or LGH engine with the Fluidampr Performance Diesel Damper (Part #830121)—the same technology trusted by high-power diesel OEMs. This premium viscous damper provides superior, broad-range control of harmful crankshaft torsional vibrations to improve durability, reliability, and overall engine performance.
When upgrading your engine with performance modifications or stronger rotating assemblies, installing a Fluidampr helps reduce wear on critical internal components such as main bearings, timing gears, and crankshafts. Built with high-quality viscous silicone and precision CNC-machined, computer-balanced steel components, this damper delivers maintenance-free, consistent performance without the need for tuning or rebuilds.
Controls destructive crankshaft torsional vibrations
Protects main bearings, timing gears, and crankshafts
Designed for high-performance and upgraded diesel engines
Precision CNC-machined and computer balanced
Maintenance-free, no tuning or rebuild required
SFI 18.1 certified for performance and safety
Includes mounting washer; optional bolt kit available (p/n 300010)
| Specification | Detail |
|---|---|
| Part Number | 830121 |
| Fitment | 2011–2017 GM/Chevy 6.6L Duramax LML / LGH |
| Bore Diameter | 1.9300" |
| Degree Markings | Engraved |
| Engine Balance | External |
| Finish | Black Zinc |
| Keyway | Single (5mm) |
| Length | 2.66" |
| Material | Steel |
| Mounting Hardware Included | Yes – Washer included. Recommend Fluidampr High Strength Bolt Kit p/n 300010 |
| Outside Diameter | 8-3/8" |
| Safety Rating | SFI 18.1 |
| Weight / Rotating Weight | 25.0 lbs / 16.7 lbs |
2011–2017 GM / Chevy 6.6L Duramax LML
2011–2017 GM / Chevy 6.6L Duramax LGH
We are open Monday-Friday from 8am-6pm EST
Yes, customers located in and around the the Piedmont area are welcome to pick up their items from our retail location during normal business hours. Our address is:
Elite Race Fab
1514 Holbrook St Suite D-F
Greensboro, NC 27403
Elite Race Fab offers free ground shipping & handling to our retail customers within the lower 48 contiguous United States on most orders totaling $159.99 and higher, when the item being purchased is not a Freight/LTL item! Orders under $159.99 will be subject to a nominal $13.99 Flat shipping charge. Some exceptions and/or exclusions apply, in those scenarios you will be advised of any additional charges in the item details/description stating shipping exclussions/freight shipping required etc.
In regards to expedited and international shipping each order will need to be quoted on a case by case basis. You can obtain a quote two ways:
- From your shopping cart select "Request a Quote" prior to placing your order. We will review your proposed order and promptly respond with shipping estimates.
- Complete your order ahead of time indicating either expedited or international shipping during the checkout process. We will promptly determine shipping rates for your order and email you for approval and additional payment.
-Give us a call and we can ensure your item is shipped right then, to ensure you have it in time for your deadline.
We have been committed to offering all of our customers the lowest pricing throughout our website day in and day out. We value your business so much that we go a step further than our competitors. We use a third party software that proactively monitors all our competitor's websites/pricing so that we can make adjustments accordingly if needed to have the lowest prices. Thats right, no need to spend hours searching for the lowest prices, as ours will be the lowest.
As far as price matching, we dont want to write a check we cant cash, but we certainly want to earn your business. With that said, we will go above and beyond to match our competitor's pricing when it is needed. Simply email us, click the live contact button, or give us a call and be sure to have a link to our competitor's site and please factor in any shipping and handling their website will be charging. We will then ensure you get the lowest price, and either match or beat their pricing.
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