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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 TOY 2JZGTE 8.5:1 KIT Set of 6 Pistons JE Pistons TOY 2JZGTE 8.5:1 KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons TOY 2JZGTE 8.5:1 KIT Set of 6 Pistons

$1,324.99
JEP296932
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 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
JEP296902
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...
Sold out
JE Pistons SUB EJ257 83mm STR 99.75mm Bore CR 8.5 KIT Set of 4 Pistons JE Pistons SUB EJ257 83mm STR 99.75mm Bore CR 8.5 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons SUB EJ257 83mm STR 99.75mm Bore CR 8.5 KIT Set of 4 Pistons

$899.99
JEP296352
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 SUB STI EJ257 99.75mm Bore CR 8.5 KIT Set of 4 Pistons JE Pistons SUB STI EJ257 99.75mm Bore CR 8.5 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons SUB STI EJ257 99.75mm Bore CR 8.5 KIT Set of 4 Pistons

$899.99
JEP296348
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
JEP295733
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 2.0T FSI 10.5 KIT Set of 4 Pistons JE Pistons VW 2.0T FSI 10.5 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons VW 2.0T FSI 10.5 KIT Set of 4 Pistons

$899.99
JEP291883
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 NIS QR25 10.5 89MKIT Set of 4 Pistons JE Pistons NIS QR25 10.5 89MKIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons NIS QR25 10.5 89MKIT Set of 4 Pistons

$899.99
JEP291881
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 SUB STI EJ257 99.5mm Bore CR 8.5 KIT Set of 4 Pistons JE Pistons SUB STI EJ257 99.5mm Bore CR 8.5 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons SUB STI EJ257 99.5mm Bore CR 8.5 KIT Set of 4 Pistons

$899.99
JEP291061
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...
Sold out
JE Pistons SUB STI EJ257 Block w/ EJ20 Head 100mm Bore CR 8.5 KIT Set of 4 Pistons JE Pistons SUB STI EJ257 Block w/ EJ20 Head 100mm Bore CR 8.5 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons SUB STI EJ257 Block w/ EJ20 Head 100mm Bore CR 8.5 KIT Set of 4 Pistons

$899.99
JEP291060
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...
Sold out
JE Pistons SUB STI EJ257 Block w/ EJ20 Head 99.5mm Bore CR 8.5 KIT Set of 4 Pistons JE Pistons SUB STI EJ257 Block w/ EJ20 Head 99.5mm Bore CR 8.5 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons SUB STI EJ257 Block w/ EJ20 Head 99.5mm Bore CR 8.5 KIT Set of 4 Pistons

$899.99
JEP291059
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 VW2.0T FS1 10.25:1 KIT Set of 4 Pistons JE Pistons VW2.0T FS1 10.25:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons VW2.0T FS1 10.25:1 KIT Set of 4 Pistons

$899.99
JEP284780
Audi A4 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 VW2.0T FS1 9.5:1 KIT Set of 4 Pistons JE Pistons VW2.0T FS1 9.5:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons VW2.0T FS1 9.5:1 KIT Set of 4 Pistons

$899.99
JEP284779
Audi A4 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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