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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 12-13 BRUTE 750 Piston Single Quick View
JE Pistons

JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single

$299.99
JEP317184L
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Kit Quick View
JE Pistons

JE Pistons Kawasaki 12-13 BRUTE 750 Piston Kit

$524.99
JEP317184
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 12-13 BRUTE 750 Piston Single Quick View
JE Pistons

JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single

$299.99
JEP317183R
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single Quick View
JE Pistons

JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single

$299.99
JEP317183L
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Kit Quick View
JE Pistons

JE Pistons Kawasaki 12-13 BRUTE 750 Piston Kit

$524.99
JEP317183
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 12-13 BRUTE 750 Piston Single Quick View
JE Pistons

JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single

$299.99
JEP317182R
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single Quick View
JE Pistons

JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single

$299.99
JEP317182L
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Kit Quick View
JE Pistons

JE Pistons Kawasaki 12-13 BRUTE 750 Piston Kit

$524.99
JEP317182
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 12-13 BRUTE 750 Piston Single Quick View
JE Pistons

JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single

$299.99
JEP317181R
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single Quick View
JE Pistons

JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single

$299.99
JEP317181L
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Kit Quick View
JE Pistons

JE Pistons Kawasaki 12-13 BRUTE 750 Piston Kit

$524.99
JEP317181
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 12-13 BRUTE 750 Piston Single Quick View
JE Pistons

JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single

$299.99
JEP317180R
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Kawasaki 12-13 BRUTE 750 Piston Single
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