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JE Pistons

The origins of what we know today as JE Pistons can be traced back to 1912 and the Los Angeles foundry of William Jahns Sr. and his company W.H. Jahns. Employing the tagline, “Nothing but Pistons,” the W.H. Jahns company produced pistons and semi-finished pistons until 1948, when Jahns Sr. retired. Meanwhile, Jahns’ son, William “Uncle Bill” Jahns Jr., started and had been working on his company Jahns’ Racing Pistons since 1947. Shortly after, the business became Jahns’ Engineering Pistons, and was finally shortened to JE Pistons.

Through the following years, JE Pistons’ technology evolved, from mastering casting technology in the 60s to researching and implementing forging technology in the 70s. Numerical Controlled (NC) machines were introduced to manufacturing in the early 80s, which was quickly improved to the use of Computer Numerical Controlled (CNC) machines and a proprietary piston design and machining program in the mid-80s.

JE Pistons has continued to evolve their manufacturing processes, currently offering racing pistons either off the shelf or fully custom. JE pistons are all designed, forged, and machined in-house, allowing control over every step of the piston-making process. JE’s 7+ decades of experience in high-level racing has led to offering premium racing features, including full billet construction, EN plating, and purpose-designed coatings, to name a few.

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JE Pistons

JE Pistons 1.0-1.2-2.8-2.894 - Ring Set

$30.99
JEPXC7350
Engine Components JE Pistons Piston Rings Under 100
JE Piston Rings are designed to maximize horsepower through precision sealing of combustion pressure. They are offered in a huge selection of sizes, various...
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JE Pistons

JE Pistons 0.8-0.8-1.5-2.894 - Ring Set

$37.64
JEPXA2894
Engine Components JE Pistons Piston Rings Under 100
JE Pistons 0.8-0.8-1.5-2.894 - Ring Set
Photo - Primary Quick View
JE Pistons

JE Pistons 0.8-0.8-1.5-2.890 - Ring Set

$36.99
JEPMAC7340
Engine Components JE Pistons Piston Rings Under 100
JE Piston Rings are designed to maximize horsepower through precision sealing of combustion pressure. They are offered in a huge selection of sizes, various...
Photo - Primary Quick View
JE Pistons

JE Pistons .95-1.2-2.0-95.50 - Ring Set

$55.87
JEPJG8001-3760
Engine Components JE Pistons Piston Rings Under 100
JE Piston Rings are designed to maximize horsepower through precision sealing of combustion pressure. They are offered in a huge selection of sizes, various...
Photo - Primary Quick View
JE Pistons

JE Pistons .95-1.5-2.0-9600 Ring Set

$73.95
JEPJG5A01-3780
Engine Components JE Pistons Piston Rings Under 100
JE Piston Rings are designed to maximize horsepower through precision sealing of combustion pressure. They are offered in a huge selection of sizes, various...
Quick View
JE Pistons

JE Pistons YAMAHA RAPTOR 105mmSleeve

$198.22
JEPJE4325B
Engine Components JE Pistons Piston Rings
JE Pistons YAMAHA RAPTOR 105mmSleeve
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JE Pistons

JE Pistons .060 HARLEY 1986-94 Gasket

$15.69
JEPJC9007A
Engine Components Head Gaskets JE Pistons Under 100
JE Pistons is a name that you know and trust. JE Pistons powersports head gaskets are constructed from a variety of high-quality materials to...
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JE Pistons

JE Pistons .043 HARLEY 1986-94 Gasket

$15.69
JEPJC9007
Engine Components Head Gaskets JE Pistons Under 100
JE Pistons is a name that you know and trust. JE Pistons powersports head gaskets are constructed from a variety of high-quality materials to...
Quick View
JE Pistons

JE Pistons GSXR1300R 99-08 BUSA Gasket

$92.12
JEPJC8656
Engine Components Head Gaskets JE Pistons Under 100
JE Pistons is a name that you know and trust. JE Pistons powersports head gaskets are constructed from a variety of high-quality materials to...
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JE Pistons

JE Pistons KAWASAKI ZX-12 4V Gasket

$92.12
JEPJC8641
Engine Components Head Gaskets JE Pistons Under 100
JE Pistons is a name that you know and trust. JE Pistons powersports head gaskets are constructed from a variety of high-quality materials to...
Quick View
JE Pistons

JE Pistons GSXR1300R 99-08 BUSA Gasket

$92.12
JEPJC8622
Engine Components Head Gaskets JE Pistons Under 100
JE Pistons is a name that you know and trust. JE Pistons powersports head gaskets are constructed from a variety of high-quality materials to...
Quick View
JE Pistons

JE Pistons GSXR1300R 99-08-BUSA Gasket

$92.12
JEPJC8621
Engine Components Head Gaskets JE Pistons Under 100
JE Pistons is a name that you know and trust. JE Pistons powersports head gaskets are constructed from a variety of high-quality materials to...
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