971121 Cylinder base stud
Fits: 30-73 45" Flathead (cylinder base);…
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Specifications
- Brand
- MCS
- Part Number
- 971121
- OEM Reference
- 16830-29A
- Pack Quantity
- Pack of 4
- Category
- Cylinder Base Studs
- VAT Rate
- 20%
About This Product
This cylinder base stud from MCS is a versatile fastener for vintage Harley-Davidson engines. It features 3/8-16 to 3/8-24 threads and measures 1-13/16 inches in length. It is primarily used as a cylinder base stud for 1930 to 1973 45-inch Flathead models, but it also serves as a transmission stud for 1965 to 1969 Big Twin models. This stud is a direct replacement for OEM 16830-29A, ensuring the correct fit and tensile strength required for these critical engine and gearbox locations. These are sold in a pack of four, providing exactly what you need for a standard top-end service or transmission mount.
Manufacturer part number: 971121.
Fitment
77 models30-73 45" Flathead (cylinder base); 65-69 Big Twin (transmission)
Dyna 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1991 | Dyna Sturgis FXDB |
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 |
FXR 15 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1989–1990 | FXR Convertible FXRS |
| Harley-Davidson | 1985–1987 | FXR Custom FXRC |
| Harley-Davidson | 1984–1990 | FXR Low Glide FXRS |
| Harley-Davidson | 1987–1990 | FXR Low Rider FXLR |
| Harley-Davidson | 1986–1991 | FXR Sport FXRS-SP |
| Harley-Davidson | 1986–1990 | FXR Super Glide FXR |
| Harley-Davidson | 1986 | FXR Touring FXRD |
| Harley-Davidson | 1984 | FXR Touring FXRDG |
| Harley-Davidson | 1984–1990 | FXR Touring FXRT |
| Harley-Davidson | 1991 | Low Rider Convertible FXRS |
| Harley-Davidson | 1991 | Low Rider Custom FXLR |
| Harley-Davidson | 1991 | Low Rider FXRS |
| Harley-Davidson | 1991 | Low Rider Sport Edition FXRS-SP |
| Harley-Davidson | 1991 | Sport Glide FXRT |
| Harley-Davidson | 1991 | Super Glide FXR |
FXR Police 5 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1984–1990 | Police Low Rider FXRP |
| Harley-Davidson | 1991 | Super Glide Police (Fairing) FXRP |
| Harley-Davidson | 1991 | Super Glide Police (Frg/Wnd) FXRP-FRG |
| Harley-Davidson | 1991 | Super Glide Police (Frg/Wnd) FXRP-WND |
| Harley-Davidson | 1991 | Super Glide Police (Windshield) FXRP |
Police 3 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1991 | Electra Glide Standard Police (Fairing) FLHTP |
| Harley-Davidson | 1991 | Electra Glide Standard Police (Windshield) FLHTP |
| Harley-Davidson | 1975 | Glide Police FL |
Police Electra Glide 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1979–1980 | Police FLH 80 FLHP-80 |
Softail 12 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1991 | Fat Boy FLSTF |
| Harley-Davidson | 1985 | FX Low Rider FXSB |
| Harley-Davidson | 1985 | FX Super Glide Fat Bob FXEF |
| Harley-Davidson | 1985–1986 | FX Wide Glide FXWG |
| Harley-Davidson | 1991 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 1986–1991 | Softail Custom FXSTC |
| Harley-Davidson | 1990 | Softail Fat Boy FLSTF |
| Harley-Davidson | 1987–1990 | Softail Heritage Classic FLSTC |
| Harley-Davidson | 1986–1990 | Softail Heritage FLST |
| Harley-Davidson | 1988–1990 | Softail Springer FXSTS |
| Harley-Davidson | 1984–1990 | Softail Standard FXST |
| Harley-Davidson | 1991 | Springer Softail FXSTS |
Tour Glide 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1979–1980 | Tour Glide FLT |
Touring 20 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1991 | Electra Glide Classic FLHTC |
| Harley-Davidson | 1981–1983 | Electra Glide FLH |
| Harley-Davidson | 1981 | Electra Glide FLHS |
| Harley-Davidson | 1983–1984 | Electra Glide FLHT |
| Harley-Davidson | 1991 | Electra Glide Sport FLHS |
| 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 | 1991 | Tour Glide Classic FLTC |
| Harley-Davidson | 1981–1984 | Tour Glide FLT |
| Harley-Davidson | 1991 | Tour Glide Ultra Classic FLTCU |
| Harley-Davidson | 1981–1982 | Touring Electra Glide Classic FLHC |
| Harley-Davidson | 1983–1990 | Touring Electra Glide Classic FLHTC |
| Harley-Davidson | 1984 | Touring Electra Glide FLH |
| Harley-Davidson | 1981–1990 | Touring Electra Glide Sport FLHS |
| Harley-Davidson | 1988 | Touring Electra Glide Standard FLHT |
| Harley-Davidson | 1984–1990 | Touring Tour Glide Classic FLTC |
| Harley-Davidson | 1989–1990 | Touring Tour Glide Classic Ultra FLTCU |
| Harley-Davidson | 1991 | Ultra Classic FLHTCU |
74CI (1200CC) OHV Twin 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1978 | Electra Glide FLH |
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