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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 PORSCH 3.2LTR DM KIT Set of 6 Pistons JE Pistons PORSCH 3.2LTR DM KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons PORSCH 3.2LTR DM KIT Set of 6 Pistons

$1,499.99
JEP274645
Engine Components JE Pistons Piston Sets - Forged - 6cyl Porsche 911 Porsche 911
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 PORSCH 3.2LTR DM KIT Set of 6 Pistons JE Pistons PORSCH 3.2LTR DM KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons PORSCH 3.2LTR DM KIT Set of 6 Pistons

$1,524.99
JEP274642
Engine Components JE Pistons Piston Sets - Forged - 6cyl Porsche 911 Porsche 911
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 PORSCH 3.2LTR DM KIT Set of 6 Pistons JE Pistons PORSCH 3.2LTR DM KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons PORSCH 3.2LTR DM KIT Set of 6 Pistons

$1,524.99
JEP274640
Engine Components JE Pistons Piston Sets - Forged - 6cyl Porsche 911 Porsche 911
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 PORSCH 3.2LTR DM KIT Set of 6 Pistons JE Pistons PORSCH 3.2LTR DM KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons PORSCH 3.2LTR DM KIT Set of 6 Pistons

$1,524.99
JEP274639
Engine Components JE Pistons Piston Sets - Forged - 6cyl Porsche 911 Porsche 911
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 PORSCH 3.6LTR DM KIT Set of 6 Pistons JE Pistons PORSCH 3.6LTR DM KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons PORSCH 3.6LTR DM KIT Set of 6 Pistons

$1,524.99
JEP274637
Engine Components JE Pistons Piston Sets - Forged - 6cyl Porsche 911 Porsche 911
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 PORSCHE 3.0L DM KIT Set of 6 Pistons JE Pistons PORSCHE 3.0L DM KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons PORSCHE 3.0L DM KIT Set of 6 Pistons

$1,524.99
JEP274051
Engine Components JE Pistons Piston Sets - Forged - 6cyl Porsche 911 Porsche 911
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 PORSCHE 3.0L DM KIT Set of 6 Pistons JE Pistons PORSCHE 3.0L DM KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons PORSCHE 3.0L DM KIT Set of 6 Pistons

$1,524.99
JEP274049
Engine Components JE Pistons Piston Sets - Forged - 6cyl Porsche 911 Porsche 911
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 PORSCHE 3.0L DM KIT Set of 6 Pistons JE Pistons PORSCHE 3.0L DM KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons PORSCHE 3.0L DM KIT Set of 6 Pistons

$1,524.99
JEP274048
Engine Components JE Pistons Piston Sets - Forged - 6cyl Porsche 911 Porsche 911
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 PORSCHE 3.8L DM KIT Set of 6 Pistons JE Pistons PORSCHE 3.8L DM KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons PORSCHE 3.8L DM KIT Set of 6 Pistons

$1,524.99
JEP274046
Engine Components JE Pistons Piston Sets - Forged - 6cyl Porsche 911 Porsche 911
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 PORSCHE 3.8L DM KIT Set of 6 Pistons JE Pistons PORSCHE 3.8L DM KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons PORSCHE 3.8L DM KIT Set of 6 Pistons

$1,524.99
JEP274045
Engine Components JE Pistons Piston Sets - Forged - 6cyl Porsche 911 Porsche 911
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 2.3L KIT Set of 4 Pistons JE Pistons MITSU 4G63 2.3L KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons MITSU 4G63 2.3L KIT Set of 4 Pistons

$899.99
JEP270668
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 2.3L KIT Set of 4 Pistons JE Pistons MITSU 4G63 2.3L KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons MITSU 4G63 2.3L KIT Set of 4 Pistons

$899.99
JEP270667
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...
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