2017-2022 Harley Milwaukee Eight 131 ci, 4.310" bore, 4.500" stroke, 11.5:1 CR, 1.080" CH
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2017-2022 Harley Milwaukee Eight 131 ci, 4.310" bore, 4.500" stroke, 11.5:1 CR, 1.080" CH
|
Make |
Harley Davidson |
|
Engine Size |
131 CI |
|
Model |
Milwaukee 8 2017-2022 |
|
Bore (in) |
4.31 |
|
Stroke (in) |
4.5 |
|
Comp Ratio |
11.5:1 |
|
Dome CC |
-4.8 |
|
Comp Height |
1.08 |
|
Piston Part Number |
M5121 |
|
Conrod Part Nmber |
PSR10087 |
|
Pint Part Number |
927-2250-18CP1C |
|
Locks Part Number |
927x073 SWL |
|
Rings |
1-S10-4310-5 2-MS20-4315-THG 3-D30-4310-0 |
|
Shelf (RPO) or Made to Order (MTO) |
ROP |
Proudly made in the USA by CP Carrillo Pistons!
- Fully CNC machined
- Balanced to +/- 1 gram
- Double forced pin oilers
- Forged from high strength 2618 alloy
- Designed for maximum performance, horsepower and reliability
- Complete kit includes two pistons, ring sets, wrist pins and clips
- Follow ring end gap and piston to cylinder clearances as per the supplied instructions
| Product Name | 2017-2022 Harley Milwaukee Eight 131 ci, 4.310" bore, 4.500" stroke, 11.5:1 CR, 1.080" CH |
|---|---|
| Brands | CP Carrillo |
Delivery & Freight
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Product images are for description purposes only. Actual product may vary.
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If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What is the recommended compression ratio for the M5121 pistons?
The M5121 pistons are designed for an 11.5:1 compression ratio, which is suitable for performance applications. Ensure your engine is properly tuned to handle this compression level for optimal performance.
What material are the M5121 pistons made from?
The M5121 pistons are forged from high strength 2618 alloy, which provides excellent durability and performance characteristics, making them ideal for high-performance applications.
What are the specific machining requirements for the M5121 pistons?
When installing the M5121 pistons, it's crucial to follow the manufacturer's specifications for piston-to-cylinder clearance and ring end gaps. Proper machining will ensure optimal performance and reliability.
What components are included in the M5121 piston kit?
The M5121 piston kit includes two pistons, ring sets, wrist pins, and clips, providing a complete solution for your engine build.
How should the M5121 pistons be installed to ensure reliability?
For reliable installation of the M5121 pistons, follow the supplied instructions for ring end gaps and piston-to-cylinder clearances. Proper assembly and tuning are essential to achieve the desired performance.
