✓ VERIFIED
Apr 23, 2026
Quality
Packed well easy to install
HASTINGS MFG
SKU: 865-2057
Hastings Mfg Moly Piston Rings .010 Oversize - Harley Twin Cam 1800
$53.95
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About Hastings Mfg
Hastings has manufactured piston rings in the United States since 1915, supplying both the automotive and powersports rebuild markets. Rings are one of the few parts where a rebuild genuinely should not be cheapened.
These Hastings Mfg piston rings are engineered for Twin Cam 1800 engines, featuring a .010 oversize bore and moly compound. They provide a secure ring seal and effective oil control, vital for optimal engine performance and longevity.
Why riders pick this
- Moly compound for durability and low friction
- Three-piece oil ring design for superior oil control
- Works with OEM and Screaming Eagle pistons
- .010 oversize for bored cylinders
- Made in the USA for consistent quality
When your Twin Cam 1800 engine requires a .010 oversize for a rebuild, these Hastings Mfg moly piston rings are the precise solution. They are designed to deliver reliable compression and superior oil management, critical for maintaining the health and power of your V-twin.
Built for Reliability and Performance
- Moly compound construction for enhanced durability and reduced friction
- Three-piece oil ring design for excellent oil control
- Fully compatible with both OEM and Screaming Eagle pistons
- Proudly manufactured in the USA
Selecting the Right Rings for Your Build
This set is specifically for Twin Cam 1800 engines that have been bored .010 over stock. Most Twin Cam 1800 applications will use one set for both pistons. However, riders with TC 113" and 883 XL models will need to order two sets, as they are sold per cylinder for those specific applications. Always confirm your engine's bore size before purchasing to ensure proper fitment.
Specifications
- Brand: Hastings Mfg
- Manufacturer Part #: 2M5299010
- Engine: Twin Cam 1800
- Oversized: .010 inch
- Compound: Moly
- Length: 5 in
- Width: 1.37 in
- Height: 5 in
- Weight: 0.24 lbs
Common questions
How many piston ring sets do I need?
For most Twin Cam 1800 bikes, one set covers two pistons. However, TC 113" and 883 XL riders must order two sets per bike, as they are sold per cylinder for those models.
Will these work with Screaming Eagle pistons?
Yes, these Hastings Mfg piston rings are designed to be fully compatible with both OEM and Screaming Eagle pistons.
What does .010 oversized mean?
.010 oversized rings are intended for engines that have been bored .010 inches larger than the standard bore. If your engine is stock or has a different bore size, you'll need a different size.
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 | Hastings Mfg |
| TYPE | Piston kits & Components |
| SKU | 865-2057 |
| WEIGHT | 0.24 lb |
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
CUSTOMER REVIEWS
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✓ VERIFIED
Aug 9, 2022
Top quality fair price
✓ VERIFIED
Mar 13, 2022
quick delivery
✓ VERIFIED
Jun 15, 2020
The rings themselves are awesome but the fact that they took nearly a week to ship even though they showed as in stock and I payed extra for next day air kinda sucked.
✓ VERIFIED
Jun 9, 2015
Great product, exact fit with no issues. Received in 4 days...fantastic service, as always!
