S&S Cycle Tappet Cuffs - Harley Milwaukee-Eight
About S&S Cycle
S&S Cycle has built American V-twin performance parts in Viola, Wisconsin since 1958 — flywheels, carburetors, cams, cylinder heads and complete crate engines. When a Harley owner talks about a 124, a 128 or a 131 build, they are usually talking about S&S. Few names carry more weight with engine builders in this space.
Keep your valvetrain stable and true with S&S Cycle Tappet Cuffs for your Milwaukee-Eight. These billet aluminum cuffs are designed to prevent tappet twisting and flex, a common issue with stock components, especially when running aggressive cam profiles or higher RPMs.
Why riders pick this
- Billet aluminum construction for superior rigidity
- Hard anodized black finish for lasting protection
- Stabilizes tappets at high RPM and with high-lift cams
- Prevents distortion common with factory cuffs
- Direct upgrade during cam or tappet service
When you're pushing your Milwaukee-Eight engine, every component matters. Stock tappet cuffs can flex under the strain of high-lift cams and increased RPMs, leading to tappet misalignment and potential valvetrain issues. S&S Cycle's billet aluminum tappet cuffs provide the rigid support needed to keep your tappets tracking straight and true, ensuring optimal performance and longevity for your M8 powerplant.
Enhanced Valvetrain Stability
- Billet aluminum construction resists distortion under load
- Hard anodized black finish for durability and corrosion resistance
- Maintains precise tappet alignment through the full range of motion
- Engineered to stabilize tappets without restricting vertical travel
A Critical Upgrade for Performance Builds
Installing S&S Cycle Tappet Cuffs is a smart upgrade for any Milwaukee-Eight rider looking to maximize their engine's potential. They are particularly beneficial when performing a cam swap or any other valvetrain modification that increases stress on the tappet system. This simple yet effective component helps protect your investment in performance, ensuring your M8 runs reliably, whether you're cruising or pushing hard.
Specifications
- Brand: S&S Cycle
- Manufacturer Part #: 330-0655
- Category: Engine Components / Push Rods
- Weight: 0.37 lb
- Material: Billet aluminum
- Finish: Hard anodized black
Common questions
Will these tappet cuffs fit my Twin Cam engine?
No, these S&S Cycle Tappet Cuffs are specifically engineered for 2017 and newer Harley-Davidson Milwaukee-Eight (M8) engines only. Twin Cam models require a different part number.
Do I need to check clearances during installation?
Yes, it is crucial to verify tappet-to-cuff clearance during installation. Due to manufacturing variances between different cam and tappet suppliers, always confirm proper clearance before final assembly.
Is this a difficult installation?
Installing tappet cuffs is typically done during a cam or tappet change. If you are comfortable with valvetrain work, this is a straightforward upgrade. Professional installation is recommended if you are unsure.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | S&S Cycle |
| TYPE | Push Rods |
| SKU | T14-619311 |
| WEIGHT | 0.37 lb |
