customercare@ajusa.com

Free shipping on all orders over $99

My Account
800-877-1911
0 My Cart: $0.00

Your cart is currently empty.

Continue shopping
Total: $0.00
View cart
Toggle menu
0

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.

× Close
Categories
JE Pistons Yamaha FX SHO Piston Kit Quick View
JE Pistons

JE Pistons Yamaha FX SHO Piston Kit

$1,149.99
JEP308632
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 powersports...
JE Pistons Yamaha FX SHO Piston Single Quick View
JE Pistons

JE Pistons Yamaha FX SHO Piston Single

$339.99
JEP308631S
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Yamaha FX SHO Piston Single
JE Pistons Yamaha FX SHO Piston Kit Quick View
JE Pistons

JE Pistons Yamaha FX SHO Piston Kit

$1,149.99
JEP308631
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 powersports...
JE Pistons KTM 450SXF 13.5 to 1 Piston Single Quick View
JE Pistons

JE Pistons KTM 450SXF 13.5 to 1 Piston Single

$369.99
JEP308476S
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons KTM 450SXF 13.5 to 1 Piston Single
JE Pistons KTM 450SXF 13.5 to 1 Piston Kit Quick View
JE Pistons

JE Pistons KTM 450SXF 13.5 to 1 Piston Kit

$324.99
JEP308476
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 KTM 450SXF 13.0 to 1 Piston Single Quick View
JE Pistons

JE Pistons KTM 450SXF 13.0 to 1 Piston Single

$369.99
JEP308475S
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons KTM 450SXF 13.0 to 1 Piston Single
JE Pistons KTM 450SXF 13.0 to 1 Piston Kit Quick View
JE Pistons

JE Pistons KTM 450SXF 13.0 to 1 Piston Kit

$324.99
JEP308475
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 KTM 450SXF 12.5 to 1 Piston Single Quick View
JE Pistons

JE Pistons KTM 450SXF 12.5 to 1 Piston Single

$369.99
JEP308474S
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons KTM 450SXF 12.5 to 1 Piston Single
JE Pistons KTM 450SXF 12.5 to 1 Piston Kit Quick View
JE Pistons

JE Pistons KTM 450SXF 12.5 to 1 Piston Kit

$324.99
JEP308474
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...
Quick View
JE Pistons

JE Pistons Kawasaki NINJA 650R Piston Single

$314.99
JEP308455S
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Kawasaki NINJA 650R Piston Single
Quick View
JE Pistons

JE Pistons Kawasaki NINJA 650R Piston Kit

$524.99
JEP308455
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 NINJA 650R Piston Single Quick View
JE Pistons

JE Pistons Kawasaki NINJA 650R Piston Single

$314.99
JEP308454S
Engine Components JE Pistons Misc Powersports Pistons - Forged - Single
JE Pistons Kawasaki NINJA 650R Piston Single
Show More
Items 841 to 852 of 4984 total
compare
×

Someone recently bought a

We use cookies to improve your experience on our website. Read about how we use cookies in our Privacy Policy. By browsing this website, you agree to our use of cookies. privacy policy
accept

Your cart

×