2M6482020 3-7/16" bore chr/moly piston ring set. +.020"
Fits: 41-E78 1200cc/74" Big Twin (Excl. F…
incl. VAT
Chapter members save 15% · Sign in for member pricing
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- Hastings
- Part Number
- 2M6482020
- OEM Reference
- —
- Pack Quantity
- Sold as pr
- Category
- Piston Rings
- VAT Rate
- 20%
About This Product
These Hastings chrome-moly piston rings are engineered for 1941 to early 1978 1200cc Big Twin engines that have been bored to .020 inch oversize. Based on the standard 3-7/16 inch bore, this set includes 1.6mm compression rings and a 4.75mm flex-vent oil ring. The chrome-moly construction offers superior durability and heat resistance compared to standard cast rings. Sold as a pair, this set covers both cylinders for a full top-end refresh. Mechanics should measure the piston grooves to confirm compatibility with their specific pistons, as these rings are designed to provide a precise seal for restored vintage Harley-Davidson powerplants.
Manufacturer part number: 2M6482020.
Fitment
41-E78 1200cc/74" Big Twin (Excl. Flatheads)
Related Products
View all →
More from Hastings
View all →
Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.