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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 FIAT 159A 9.2:1 KIT Set of 4 Pistons JE Pistons FIAT 159A 9.2:1 KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons FIAT 159A 9.2:1 KIT Set of 4 Pistons

$899.99
JEP312394
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 CITROEN SAXO TU5J4 Set of 4 Pistons JE Pistons CITROEN SAXO TU5J4 Set of 4 Pistons Quick View
JE Pistons

JE Pistons CITROEN SAXO TU5J4 Set of 4 Pistons

$899.99
JEP312393
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 CITROEN SAXO TU5J4 Set of 4 Pistons JE Pistons CITROEN SAXO TU5J4 Set of 4 Pistons Quick View
JE Pistons

JE Pistons CITROEN SAXO TU5J4 Set of 4 Pistons

$899.99
JEP312392
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 CITROEN SAXO TU5J4 Set of 4 Pistons JE Pistons CITROEN SAXO TU5J4 Set of 4 Pistons Quick View
JE Pistons

JE Pistons CITROEN SAXO TU5J4 Set of 4 Pistons

$899.99
JEP312391
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 CITROEN SAXO TU5J4 Set of 4 Pistons JE Pistons CITROEN SAXO TU5J4 Set of 4 Pistons Quick View
JE Pistons

JE Pistons CITROEN SAXO TU5J4 Set of 4 Pistons

$899.99
JEP312390
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 CITROEN SAXO TU5J4 Set of 4 Pistons JE Pistons CITROEN SAXO TU5J4 Set of 4 Pistons Quick View
JE Pistons

JE Pistons CITROEN SAXO TU5J4 Set of 4 Pistons

$899.99
JEP312389
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 CITROEN C2 VTS KIT Set of 4 Pistons JE Pistons CITROEN C2 VTS KIT Set of 4 Pistons Quick View
JE Pistons

JE Pistons CITROEN C2 VTS KIT Set of 4 Pistons

$899.99
JEP312388
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...
Quick View
JE Pistons

JE Pistons BMW S14B32 13:1 KIT Set of 4 Pistons

$899.99
JEP312386
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...
Quick View
JE Pistons

JE Pistons BMW S14B32 13:1 KIT Set of 4 Pistons

$899.99
JEP312385
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 LS ASYM DM 4100STRKR Set of 8 Pistons JE Pistons LS ASYM DM 4100STRKR Set of 8 Pistons Quick View
JE Pistons

JE Pistons LS ASYM DM 4100STRKR Set of 8 Pistons

$1,016.99
JEP312131
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 LS ASYM DM 4100STRKR Set of 8 Pistons JE Pistons LS ASYM DM 4100STRKR Set of 8 Pistons Quick View
JE Pistons

JE Pistons LS ASYM DM 4100STRKR Set of 8 Pistons

$1,016.99
JEP312130
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 LS ASYM DISH/INV DM Set of 8 Pistons JE Pistons LS ASYM DISH/INV DM Set of 8 Pistons Quick View
JE Pistons

JE Pistons LS ASYM DISH/INV DM Set of 8 Pistons

$1,016.99
JEP312129
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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