504445 Replacement 1200cc B.T. cast piston. +.010"
Fits: 41-E78 1200cc/74" Knuckle; Pan; Sho…
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Specifications
- Brand
- MCS
- Part Number
- 504445
- OEM Reference
- 22143-55B
- Pack Quantity
- Each
- Category
- Pistons
- VAT Rate
- 20%
About This Product
This +0.010-inch oversize replacement cast piston fits 1941 to early 1978 1200cc (74 cubic inch) Knucklehead, Panhead, and Shovelhead Big Twin engines with minimal cylinder wear. Maintaining the standard 8:1 compression ratio, it is perfect for a light hone rebuild that restores factory performance. Each piston comes complete with wristpin and clips, while rings must be purchased separately. Cast construction provides a low expansion rate and significant cost advantage over OEM forged alternatives. Professional installation with proper component compatibility verification is essential. Standard break-in procedures ensure optimal ring seating and maximise the service life of your rebuilt classic 1200cc Harley-Davidson engine.
Manufacturer part number: 504445.
Fitment
50 models41-E78 1200cc/74" Knuckle; Pan; Shovel
Electra Glide 18 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1978 | Electra Glide FLH 80 FLH-80 |
| Harley-Davidson | 1975–1980 | Electra Glide FLH-1200 |
| Harley-Davidson | 1979–1980 | Electra Glide FLH-80 |
| Harley-Davidson | 1975 | Electra Glide FLHF |
| Harley-Davidson | 1977 | Electra Glide FLHS-1200 |
| Harley-Davidson | 1980 | Electra Glide FLHS-80 |
| Harley-Davidson | 1984 | FLH Police 80 FLH |
| Harley-Davidson | 1979–1980 | Glide Classic FLHC-80 |
| Harley-Davidson | 1981–1984 | Police Electra Glide FLH-1200 |
| Harley-Davidson | 1981–1984 | Police Electra Glide FLH-80 |
| Harley-Davidson | 1983 | Police FLH |
| Harley-Davidson | 1979–1980 | Police FLH-1200 FLH-1200 |
| Harley-Davidson | 1980 | Touring Electra Glide Classic FHL-80 |
| Harley-Davidson | 1979 | Touring Electra Glide Classic FLHC-80 |
| Harley-Davidson | 1980 | Touring Electra Glide FL-80 |
| Harley-Davidson | 1978–1984 | Touring Electra Glide FLH-80 |
| Harley-Davidson | 1977 | Touring Electra Glide Sport FLHS-1200 |
| Harley-Davidson | 1980 | Touring Electra Glide Sport FLHS-80 |
Low Rider 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1977–1979 | FX Super Glide FXS-1200 |
| Harley-Davidson | 1979–1980 | FX Super Glide FXS-80 |
Police 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1975 | Glide Police FL |
Police Electra Glide 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1979–1980 | Police FLH 80 FLHP-80 |
Softail 7 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1983 | Dyna Glide Glide Custom FXDG |
| Harley-Davidson | 1983–1984 | FX Low Rider FXSB |
| Harley-Davidson | 1981 | FX Super Glide Fat Bob FXEF |
| Harley-Davidson | 1981–1984 | FX Super Glide FXE |
| Harley-Davidson | 1981–1982 | FX Super Glide FXS |
| Harley-Davidson | 1981–1984 | FX Wide Glide FXWG |
| Harley-Davidson | 1981–1982 | Super Glide B80 FXB |
Super Glide 6 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1979–1980 | FX Super Glide Fat Bob FXEF-1200 |
| Harley-Davidson | 1979–1980 | FX Super Glide Fat Bob FXEF-80 |
| Harley-Davidson | 1976–1980 | FX Super Glide FXE-1200 |
| Harley-Davidson | 1983–1984 | FX Super Glide FXS-80 |
| Harley-Davidson | 1976–1978 | Super Glide 1200 FX-1200 |
| Harley-Davidson | 1980 | Super Glide B80 FXB-80 |
Tour Glide 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1979–1980 | Tour Glide FLT |
Touring 12 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1981–1983 | Electra Glide FLH |
| Harley-Davidson | 1981 | Electra Glide FLHS |
| Harley-Davidson | 1983–1984 | Electra Glide FLHT |
| Harley-Davidson | 1981 | Glide Classic FLHC |
| Harley-Davidson | 1983–1984 | Glide Classic FLHT |
| Harley-Davidson | 1981 | Glide Classic FLTC |
| Harley-Davidson | 1982–1984 | Tour Glide Classic FLT |
| Harley-Davidson | 1981–1984 | Tour Glide FLT |
| Harley-Davidson | 1981–1982 | Touring Electra Glide Classic FLHC |
| Harley-Davidson | 1983 | Touring Electra Glide Classic FLHTC |
| Harley-Davidson | 1984 | Touring Electra Glide FLH |
| Harley-Davidson | 1981–1984 | Touring Electra Glide Sport FLHS |
Wide Glide 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1980 | FX Wide Glide FXWG-80 |
74CI (1200CC) OHV Twin 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1978 | Electra Glide FLH |
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