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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 Kawasaki ZX10R 2008-09 Piston Single Quick View
JE Pistons

JE Pistons Kawasaki ZX10R 2008-09 Piston Single

$334.99
JEP284719S
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Kawasaki ZX10R 2008-09 Piston Single
JE Pistons Kawasaki ZX10R 2008-09 Piston Kit Quick View
JE Pistons

JE Pistons Kawasaki ZX10R 2008-09 Piston Kit

$1,139.99
JEP284719
Engine Components JE Pistons Misc Powersports Piston Sets - Powersports Uncategorized
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 Kawasaki ZRX10R 2008-09 Piston Single Quick View
JE Pistons

JE Pistons Kawasaki ZRX10R 2008-09 Piston Single

$334.99
JEP284718S
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Kawasaki ZRX10R 2008-09 Piston Single
JE Pistons Suzuki GSXR 1000 K9 Piston Single Quick View
JE Pistons

JE Pistons Suzuki GSXR 1000 K9 Piston Single

$334.99
JEP284702S
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Suzuki GSXR 1000 K9 Piston Single
JE Pistons Suzuki GSXR 1000 K9 Piston Kit Quick View
JE Pistons

JE Pistons Suzuki GSXR 1000 K9 Piston Kit

$1,139.99
JEP284702
Engine Components JE Pistons Misc Powersports Piston Sets - Powersports Uncategorized
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 Suzuki GSXR 1000 K9 Piston Single Quick View
JE Pistons

JE Pistons Suzuki GSXR 1000 K9 Piston Single

$334.99
JEP284701S
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Suzuki GSXR 1000 K9 Piston Single
JE Pistons Suzuki GSXR 1000 K9 Piston Kit Quick View
JE Pistons

JE Pistons Suzuki GSXR 1000 K9 Piston Kit

$1,139.99
JEP284701
Engine Components JE Pistons Misc Powersports Piston Sets - Powersports Uncategorized
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 Suzuki GSXR 1000 K9 Piston Single Quick View
JE Pistons

JE Pistons Suzuki GSXR 1000 K9 Piston Single

$334.99
JEP284700S
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Suzuki GSXR 1000 K9 Piston Single
JE Pistons Suzuki GSXR 1000 K9 Piston Kit Quick View
JE Pistons

JE Pistons Suzuki GSXR 1000 K9 Piston Kit

$1,139.99
JEP284700
Engine Components JE Pistons Misc Powersports Piston Sets - Powersports Uncategorized
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 Suzuki SV 650 Piston Single Quick View
JE Pistons

JE Pistons Suzuki SV 650 Piston Single

$299.99
JEP284698S
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Suzuki SV 650 Piston Single
JE Pistons Suzuki SV 650 Piston Kit Quick View
JE Pistons

JE Pistons Suzuki SV 650 Piston Kit

$519.99
JEP284698
Engine Components JE Pistons Misc Powersports Piston Sets - Powersports Uncategorized
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 Kawasaki ZRX 1200 Piston Single Quick View
JE Pistons

JE Pistons Kawasaki ZRX 1200 Piston Single

$334.99
JEP284696S
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Kawasaki ZRX 1200 Piston Single
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