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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 AUDI S4 2.7LTT KIT Set of 6 Pistons JE Pistons AUDI S4 2.7LTT KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons AUDI S4 2.7LTT KIT Set of 6 Pistons

$1,349.99
JEP314323
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 VW 2.0T TSI 9.1:1 KIT Set of 4 Pistons JE Pistons VW 2.0T TSI 9.1:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons VW 2.0T TSI 9.1:1 KIT Set of 4 Pistons

$899.99
JEP314312
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 TOY 2JZGTE 9.5:1 KIT Set of 6 Pistons JE Pistons TOY 2JZGTE 9.5:1 KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons TOY 2JZGTE 9.5:1 KIT Set of 6 Pistons

$1,349.99
JEP314303
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...
Sold out
JE Pistons SUB STI EJ257 99.75mm Bore CR 9.5 KIT Set of 4 Pistons JE Pistons SUB STI EJ257 99.75mm Bore CR 9.5 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons SUB STI EJ257 99.75mm Bore CR 9.5 KIT Set of 4 Pistons

$899.99
JEP310937
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 HONDA B18C1 81.5 KIT Set of 4 Pistons JE Pistons HONDA B18C1 81.5 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons HONDA B18C1 81.5 KIT Set of 4 Pistons

$849.99
JEP302503
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 83.0 KIT Set of 4 Pistons JE Pistons VW 2.0T FSI 83.0 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons VW 2.0T FSI 83.0 KIT Set of 4 Pistons

$899.99
JEP302342
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 82.5 KIT Set of 4 Pistons JE Pistons VW 2.0T FSI 82.5 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons VW 2.0T FSI 82.5 KIT Set of 4 Pistons

$899.99
JEP302338
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 1.8T 20V KIT 82.0 Set of 4 Pistons JE Pistons VW 1.8T 20V KIT 82.0 Set of 4 Pistons Quick View
JE Pistons

JE Pistons VW 1.8T 20V KIT 82.0 Set of 4 Pistons

$899.99
JEP302025
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 Hyundai GEN 9:1 KIT Set of 6 Pistons JE Pistons Hyundai GEN 9:1 KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons Hyundai GEN 9:1 KIT Set of 6 Pistons

$1,324.99
JEP299816
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 Hyundai GEN 9:1 KIT Set of 6 Pistons JE Pistons Hyundai GEN 9:1 KIT Set of 6 Pistons Quick View
JE Pistons

JE Pistons Hyundai GEN 9:1 KIT Set of 6 Pistons

$1,324.99
JEP299815
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 Hyundai 2.0T 9:1 KIT Set of 4 Pistons JE Pistons Hyundai 2.0T 9:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons Hyundai 2.0T 9:1 KIT Set of 4 Pistons

$899.99
JEP298947
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 HYUNDAI 2.0T 9:1 KIT Set of 4 Pistons JE Pistons HYUNDAI 2.0T 9:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons HYUNDAI 2.0T 9:1 KIT Set of 4 Pistons

$899.99
JEP298946
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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