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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 HONDA F20C 9.0:1 KIT Set of 4 Pistons JE Pistons HONDA F20C 9.0:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons HONDA F20C 9.0:1 KIT Set of 4 Pistons

$899.99
JEP296908
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 4B11T KIT Set of 4 Pistons JE Pistons MITSU 4B11T KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons MITSU 4B11T KIT Set of 4 Pistons

$899.99
JEP296905
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 4B11T KIT Set of 4 Pistons JE Pistons MITSU 4B11T KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons MITSU 4B11T KIT Set of 4 Pistons

$899.99
JEP296904
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 CHRY SRT4 2.4L KIT Set of 4 Pistons JE Pistons CHRY SRT4 2.4L KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons CHRY SRT4 2.4L KIT Set of 4 Pistons

$899.99
JEP296901
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 HNDA FIT/JAZ L15AKIT Set of 4 Pistons JE Pistons HNDA FIT/JAZ L15AKIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons HNDA FIT/JAZ L15AKIT Set of 4 Pistons

$899.99
JEP295751
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 AUDI 1.8T 9.25:1 KIT Set of 4 Pistons JE Pistons AUDI 1.8T 9.25:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons AUDI 1.8T 9.25:1 KIT Set of 4 Pistons

$899.99
JEP295745
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 AUDI 1.8T 8.5:1 KIT Set of 4 Pistons JE Pistons AUDI 1.8T 8.5:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons AUDI 1.8T 8.5:1 KIT Set of 4 Pistons

$899.99
JEP295744
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 AUDI 1.8T 9.25:1 KIT Set of 4 Pistons JE Pistons AUDI 1.8T 9.25:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons AUDI 1.8T 9.25:1 KIT Set of 4 Pistons

$899.99
JEP295743
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 AUDI 1.8T 8.5:1 KIT Set of 4 Pistons JE Pistons AUDI 1.8T 8.5:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons AUDI 1.8T 8.5:1 KIT Set of 4 Pistons

$899.99
JEP295742
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 VW 8V 9:0 TURBO KIT Set of 4 Pistons JE Pistons VW 8V 9:0 TURBO KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons VW 8V 9:0 TURBO KIT Set of 4 Pistons

$899.99
JEP295734
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 BBC 12/14 DEG Set of 8 Pistons JE Pistons BBC 12/14 DEG Set of 8 Pistons Quick View
JE Pistons

JE Pistons BBC 12/14 DEG Set of 8 Pistons

$1,283.99
JEP293520
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 BBC 12/14DEG Set of 8 Pistons JE Pistons BBC 12/14DEG Set of 8 Pistons Quick View
JE Pistons

JE Pistons BBC 12/14DEG Set of 8 Pistons

$1,259.99
JEP293519
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...
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