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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 MAZDA 1.8L BP KIT Set of 4 Pistons JE Pistons MAZDA 1.8L BP KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons MAZDA 1.8L BP KIT Set of 4 Pistons

$899.99
JEP255774
Engine Components JE Pistons Piston Sets - Forged - 4cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons MITSU 4G63 8.5:1 KIT Set of 4 Pistons JE Pistons MITSU 4G63 8.5:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons MITSU 4G63 8.5:1 KIT Set of 4 Pistons

$899.99
JEP253995
Engine Components JE Pistons Piston Sets - Forged - 4cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons NASCAR CANADA CHRY Set of 8 Pistons JE Pistons NASCAR CANADA CHRY Set of 8 Pistons Quick View
JE Pistons

JE Pistons NASCAR CANADA CHRY Set of 8 Pistons

$1,069.99
JEP253733
Engine Components JE Pistons Piston Sets - Forged - 8cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons NASCAR CANADA SBC Set of 8 Pistons JE Pistons NASCAR CANADA SBC Set of 8 Pistons Quick View
JE Pistons

JE Pistons NASCAR CANADA SBC Set of 8 Pistons

$1,096.99
JEP253732
Engine Components JE Pistons Piston Sets - Forged - 8cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons NASCAR CANADA SBF Set of 8 Pistons JE Pistons NASCAR CANADA SBF Set of 8 Pistons Quick View
JE Pistons

JE Pistons NASCAR CANADA SBF Set of 8 Pistons

$1,096.99
JEP253729
Engine Components JE Pistons Piston Sets - Forged - 8cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons SCN TC 2AZFE 9:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons SCN TC 2AZFE 9:1 KIT Set of 4 Pistons

$899.99
JEP253054
Engine Components JE Pistons Piston Sets - Forged - 4cyl
JE Pistons SCN TC 2AZFE 9:1 KIT Set of 4 PistonsThis Part Fits: Year Make Model Submodel 2005-2010 Scion tC Base 2007-2008 Scion tC...
JE Pistons F20C1 S2000 11.5 KIT Set of 4 Pistons JE Pistons F20C1 S2000 11.5 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons F20C1 S2000 11.5 KIT Set of 4 Pistons

$899.99
JEP252607
Engine Components JE Pistons Piston Sets - Forged - 4cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons TOY 5S/3S DISH KIT Set of 4 Pistons JE Pistons TOY 5S/3S DISH KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons TOY 5S/3S DISH KIT Set of 4 Pistons

$899.99
JEP252064
Engine Components JE Pistons Piston Sets - Forged - 4cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons TOY 2JZGTE DISH KIT Set of 6 Pistons JE Pistons TOY 2JZGTE DISH KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons TOY 2JZGTE DISH KIT Set of 6 Pistons

$1,324.99
JEP252059
Engine Components JE Pistons Piston Sets - Forged - 6cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons NISN KA24DE 11.0 KIT Set of 4 Pistons JE Pistons NISN KA24DE 11.0 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons NISN KA24DE 11.0 KIT Set of 4 Pistons

$899.99
JEP250642
Engine Components JE Pistons Piston Sets - Forged - 4cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons SUBARU STI 2.5L KIT Set of 4 Pistons JE Pistons SUBARU STI 2.5L KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons SUBARU STI 2.5L KIT Set of 4 Pistons

$899.99
JEP245986
Engine Components JE Pistons Piston Sets - Forged - 4cyl
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons...
JE Pistons NISN SR20DET 8.5 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons NISN SR20DET 8.5 KIT Set of 4 Pistons

$899.99
JEP244871
Engine Components JE Pistons Piston Sets - Forged - 4cyl
JE Pistons is the leader in forged racing pistons. With 70-plus years of experience, in-house forging, and industry-leading technology, JE Pistons are designed to...
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