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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 RENAULT CLIO F7RR 12.7:1 Set of 4 Pistons JE Pistons RENAULT CLIO F7RR 12.7:1 Set of 4 Pistons Quick View
JE Pistons

JE Pistons RENAULT CLIO F7RR 12.7:1 Set of 4 Pistons

$899.99
JEP312438
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 PEUGEOT 205 XU5JA 12.0:1 Set of 4 Pistons JE Pistons PEUGEOT 205 XU5JA 12.0:1 Set of 4 Pistons Quick View
JE Pistons

JE Pistons PEUGEOT 205 XU5JA 12.0:1 Set of 4 Pistons

$899.99
JEP312437
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 PEUGEOT 205 XU5JA 12.0:1 Set of 4 Pistons JE Pistons PEUGEOT 205 XU5JA 12.0:1 Set of 4 Pistons Quick View
JE Pistons

JE Pistons PEUGEOT 205 XU5JA 12.0:1 Set of 4 Pistons

$899.99
JEP312436
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 PEUGEOT 205 XU5JA 12.0:1 Set of 4 Pistons JE Pistons PEUGEOT 205 XU5JA 12.0:1 Set of 4 Pistons Quick View
JE Pistons

JE Pistons PEUGEOT 205 XU5JA 12.0:1 Set of 4 Pistons

$899.99
JEP312435
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 PEUGEOT 205 XU9JA 11.5:1 Set of 4 Pistons JE Pistons PEUGEOT 205 XU9JA 11.5:1 Set of 4 Pistons Quick View
JE Pistons

JE Pistons PEUGEOT 205 XU9JA 11.5:1 Set of 4 Pistons

$899.99
JEP312434
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 PEUGEOT 205 XU9JA 11.5:1 Set of 4 Pistons JE Pistons PEUGEOT 205 XU9JA 11.5:1 Set of 4 Pistons Quick View
JE Pistons

JE Pistons PEUGEOT 205 XU9JA 11.5:1 Set of 4 Pistons

$899.99
JEP312433
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 PEUGEOT 106 TU5J2 11.8:1 Set of 4 Pistons JE Pistons PEUGEOT 106 TU5J2 11.8:1 Set of 4 Pistons Quick View
JE Pistons

JE Pistons PEUGEOT 106 TU5J2 11.8:1 Set of 4 Pistons

$899.99
JEP312431
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 OPEL C20XE 8.5kit Set of 4 Pistons JE Pistons OPEL C20XE 8.5kit Set of 4 Pistons Quick View
JE Pistons

JE Pistons OPEL C20XE 8.5kit Set of 4 Pistons

$899.99
JEP312429
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 OPEL 1.6 16V 11.5:1 KIT Set of 4 Pistons JE Pistons OPEL 1.6 16V 11.5:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons OPEL 1.6 16V 11.5:1 KIT Set of 4 Pistons

$899.99
JEP312428
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 OPEL 1.6 16V 11.5:1 KIT Set of 4 Pistons JE Pistons OPEL 1.6 16V 11.5:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons OPEL 1.6 16V 11.5:1 KIT Set of 4 Pistons

$899.99
JEP312427
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 OPEL 1.6 16V 11.5:1 KIT Set of 4 Pistons JE Pistons OPEL 1.6 16V 11.5:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons OPEL 1.6 16V 11.5:1 KIT Set of 4 Pistons

$899.99
JEP312426
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 MINI COOPER S 8.3:1 Set of 4 Pistons JE Pistons MINI COOPER S 8.3:1 Set of 4 Pistons Quick View
JE Pistons

JE Pistons MINI COOPER S 8.3:1 Set of 4 Pistons

$899.99
JEP312425
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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