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Johnson Inline Pistons
HP/CID |
YEAR |
CYL |
STD. BORE |
Sierra Standard Piston |
Mallory Standard Piston |
Sierra .020 OS Piston |
Mallory .020 OS Piston |
Sierra .030 OS Piston |
Mallory .030 OS Piston |
| 5 | 1986-1995 | 2 | 2.188 | 18-4069 | - | - | - | 18-4070 | - |
| 6 | 1986-1995 | 2 | 2.188 | 18-4069 | - | - | - | 18-4070 | - |
| 8 | 1986-1995 | 2 | 2.188 | 18-4069 | - | - | - | 18-4070 | - |
| 9.9 | 1974-1980 | 2 | 2.188 | 18-4061 | - | - | - | 18-4062 | - |
| 9.9 | 1981-1993 | 2 | 2.188 | 18-4106 | 9-53404 | 18-4116 | 9-53405 | 18-4126 | 9-53406 |
| 10 | 1988-1990 | 2 | 2.188 | 18-4106 | 9-53404 | 18-4116 | 9-53405 | 18-4126 | 9-53406 |
| 14 | 1988-1990 | 2 | 2.188 | 18-4106 | 9-53404 | 18-4116 | 9-53405 | 18-4126 | 9-53406 |
| 15 | 1974-1980 | 2 | 2.188 | 18-4061 | - | - | - | 18-4062 | - |
| 15 | 1981-1993 | 2 | 2.188 | 18-4106 | 9-53404 | 18-4116 | 9-53405 | 18-4126 | 9-53406 |
| 15 4-Stroke | 1995-UP | 2 | 2.188 | 18-4106 | 9-53404 | 18-4116 | 9-53405 | 18-4126 | 9-53406 |
| 18 Jet | 1995-1998 | 2 | 3 | 18-4107 | 9-53412 | 18-4117 | 9-53413 | 18-4127 | 9-53414 |
| 20 | 1981-1999 | 2 | 3 | 18-4107 | 9-53412 | 18-4117 | 9-53413 | 18-4127 | 9-53414 |
| 25 | 1981-1996 | 2 | 3 | 18-4107 | 9-53412 | 18-4117 | 9-53413 | 18-4127 | 9-53414 |
| 25 | 1983-1993 | 2 | 3.187 | 18-4125 | 9-53400 | 18-4115 | 9-53401 | 18-4105 | 9-53402 |
| 28 | 1986-1996 | 2 | 3 | 18-4107 | 9-53412 | 18-4117 | 9-53413 | 18-4127 | 9-53414 |
| 28 Jet | 1995-1996 | 2 | 3.187 | 18-4125 | 9-53400 | 18-4115 | 9-53401 | 18-4105 | 9-53402 |
| 30 | 1984-1998 | 2 | 3 | 18-4107 | 9-53412 | 18-4117 | 9-53413 | 18-4127 | 9-53414 |
| 35 | 1981-1992 | 2 | 3 | 18-4107 | 9-53412 | 18-4117 | 9-53413 | 18-4127 | 9-53414 |
| 35 | 1986-1987 | 2 | 3.187 | 18-4125 | 9-53400 | 18-4115 | 9-53401 | 18-4105 | 9-53402 |
| 35 Jet | 1990-1998 | 2 | 3.187 | 18-4125 | 9-53400 | 18-4115 | 9-53401 | 18-4105 | 9-53402 |
| 40 | 1984-1998 | 2 | 3.187 | 18-4125 | 9-53400 | 18-4115 | 9-53401 | 18-4105 | 9-53402 |
| 45 Comm. | 1985-1992 | 2 | 3.187 | 18-4125 | 9-53400 | 18-4115 | 9-53401 | 18-4105 | 9-53402 |
| 45SS | 1987-1990 | 2 | 3.187 | 18-4125 | 9-53400 | 18-4115 | 9-53401 | 18-4105 | 9-53402 |
| 48 | 1987-1997 | 2 | 3.187 | 18-4125 | 9-53400 | 18-4115 | 9-53401 | 18-4105 | 9-53402 |
| 50 | 1981-1995 | 2 | 3.187 | 18-4125 | 9-53400 | 18-4115 | 9-53401 | 18-4105 | 9-53402 |
| 50 | 1995-1998 | 3 | 3.187 | 18-4063 | 9-53432 | - | - | 18-4064 | 9-53434 |
| 55 Comm. | 1980-1995 | 2 | 3.187 | 18-4125 | 9-53400 | 18-4115 | 9-53401 | 18-4105 | 9-53402 |
| 60 | 1980-1985 | 2 | 3.187 | 18-4125 | 9-53400 | 18-4115 | 9-53401 | 18-4105 | 9-53402 |
| 60 (49 CID Model) | 1986-1988 | 3 | 3 | 18-4124 | 9-53416 | 18-4114 | 9-53417 | 18-4104 | 9-53418 |
| 60 | 1986-1998 | 3 | 3.187 | 18-4063 | 9-53432 | - | - | 18-4064 | 9-53434 |
| 49 CID Model | 1984-1986 | 3 | 3 | 18-4124 | 9-53416 | 18-4114 | 9-53417 | 18-4104 | 9-53418 |
| 65 | 1987-1995 | 3 | 3.187 | 18-4063 | 9-53432 | - | - | 18-4064 | 9-53434 |
| 65 Jet | 1991-1995 | 4 | 3.5 | 18-4120 | 9-53420 | 18-4110 | 9-53421 | 18-4100 | 9-53422 |
| 70 | 1976-1985 | 3 | 3 | 18-4124 | 9-53416 | 18-4114 | 9-53417 | 18-4104 | 9-53418 |
| 70 | 1986-1994 | 3 | 3.187 | 18-4063 | 9-53432 | - | - | 18-4064 | 9-53434 |
| 75 | 1976-1988 | 3 | 3 | 18-4124 | 9-53416 | 18-4114 | 9-53417 | 18-4104 | 9-53418 |
HP/CID |
YEAR |
CYL |
STD. BORE |
Sierra Standard Piston |
Mallory Standard Piston |
Sierra .020 OS Piston |
Mallory .020 OS Piston |
Sierra .030 OS Piston |
Mallory .030 OS Piston |
View Large Size
Johnson Inline Pistons
Average Customer Review for Standard Bore Inline Piston - 18-4120 - Sierra
Q:
What hp motor does this part come from?
A:
This cross references with an OEM number. We would need to know your application as it could work with various HP motors. Contact us at the number at the top of the page for more assistance.
This product ships in 1 to 3 business days.
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