946415 Replacement 74" Flathead piston kit. std.
Fits: 37-48 74" (1200cc) 3-5/16" bore ''U…
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
- MCS
- Part Number
- 946415
- OEM Reference
- 946415
- Pack Quantity
- Sold as a set
- Category
- Pistons And Rings Kits
- VAT Rate
- 20%
About This Product
Rebuilding a classic 74-inch U model Flathead requires parts that respect the original specs, and this MCS piston kit is designed for exactly that. These are cast aluminum, OEM-style pistons intended for stock 1200cc Side Valve engines from 1937 to 1948. This standard-bore kit comes complete with the pistons, wrist pins, retainers, and the necessary piston rings to get your top end back in shape. As with any vintage overhaul, it is vital to check clearances and follow a proper break-in procedure to ensure longevity. This set is a reliable choice for restorers looking to maintain the authentic feel of their Big Twin Flathead and is identified by OEM number 946415.
Manufacturer part number: 946415.
Fitment
37-48 74" (1200cc) 3-5/16" bore ''U'' model Flatheads
Related Products
View all →
More from MCS
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.