504515 Replacement 7:1cr 1340cc Shovel cast piston. std
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Specifications
- Brand
- MCS
- Part Number
- 504515
- OEM Reference
- 21990-80A
- Pack Quantity
- Each
- Category
- Pistons
- VAT Rate
- 20%
About This Product
MCS standard-size cast piston for late 1978-1984 1340cc Shovelhead motors. 7:1 compression ratio. The lower ratio reduces thermal and mechanical stress on the bottom end. Each piston includes wristpin and clips. Rings are sold separately. Cast construction provides low expansion rates and affordability. This suits engines that run hard or in hot climates. Professional installation and standard break-in procedures are required for proper ring seating and optimal engine life.
Manufacturer part number: 504515.
Fitment
44 modelsL78-84 1340cc Shovel
FL Shovel 20 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1982 | Electra Glide FLH |
| Harley-Davidson | 1980 | Electra Glide FLH-80 |
| Harley-Davidson | 1980 | Electra Glide FLHS-80 |
| Harley-Davidson | 1984 | Electra Glide FLHT |
| Harley-Davidson | 1984 | FLH Police 80 FLH |
| Harley-Davidson | 1981 | Glide Classic FLHC |
| Harley-Davidson | 1979 | Glide Classic FLHC-80 |
| Harley-Davidson | 1984 | Glide Classic FLHT |
| Harley-Davidson | 1981–1984 | Police Electra Glide FLH-1200 |
| Harley-Davidson | 1981–1984 | Police Electra Glide FLH-80 |
| Harley-Davidson | 1979 | Police FLH 80 FLHP-80 |
| Harley-Davidson | 1980 | Touring Electra Glide Classic FHL-80 |
| Harley-Davidson | 1982 | Touring Electra Glide Classic FLHC |
| Harley-Davidson | 1984 | Touring Electra Glide Classic FLHTC |
| Harley-Davidson | 1984 | Touring Electra Glide FLH |
| Harley-Davidson | 1978–1984 | Touring Electra Glide FLH-80 |
| Harley-Davidson | 1981–1984 | Touring Electra Glide Sport FLHS |
| Harley-Davidson | 1977 | Touring Electra Glide Sport FLHS-1200 |
| Harley-Davidson | 1980 | Touring Electra Glide Sport FLHS-80 |
| Harley-Davidson | 1983 | Touring Electra Glide Standard FLHT |
FX Shovel 14 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1983–1984 | FX Low Rider FXSB |
| Harley-Davidson | 1981–1984 | FX Super Glide FXE |
| Harley-Davidson | 1976–1980 | FX Super Glide FXE-1200 |
| Harley-Davidson | 1981 | FX Super Glide FXS |
| Harley-Davidson | 1977 | FX Super Glide FXS-1200 |
| Harley-Davidson | 1979–1984 | FX Super Glide FXS-80 |
| Harley-Davidson | 1981 | FX Super Glide Fat Bob FXEF |
| Harley-Davidson | 1979–1980 | FX Super Glide Fat Bob FXEF-1200 |
| Harley-Davidson | 1979–1980 | FX Super Glide Fat Bob FXEF-80 |
| Harley-Davidson | 1983–1984 | FX Wide Glide FXWG |
| Harley-Davidson | 1980 | FX Wide Glide FXWG-80 |
| Harley-Davidson | 1976–1978 | Super Glide 1200 FX-1200 |
| Harley-Davidson | 1981–1982 | Super Glide B80 FXB |
| Harley-Davidson | 1980 | Super Glide B80 FXB-80 |
FXR 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1982–1984 | FXR Low Glide FXRS |
| Harley-Davidson | 1983 | FXR Super Glide FXR |
| Harley-Davidson | 1983–1984 | FXR Touring FXRT |
| Harley-Davidson | 1984 | Police Low Rider FXRP |
Softail 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1983 | Dyna Glide Glide Custom FXDG |
Touring 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1983 | Tour Glide Classic FLT |
| Harley-Davidson | 1979–1984 | Tour Glide FLT |
| Harley-Davidson | 1980–1984 | Touring Tour Glide Classic FLTC |
| Harley-Davidson | 1981–1982 | Touring Tour Glide FLT |
| Harley-Davidson | 1983 | Touring Tour Glide FLTD |
Planning other changes? Find your model in the bike customiser.
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