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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

JE Pistons SUB EJ257 83mm STR 100mm Bore CR 8.5 - Single Piston - Left

$299.99
JEP291064L
Engine Components JE Pistons Pistons - Forged - Single
Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applicationsDesigned specifically for each engine and use application to...
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JE Pistons

JE Pistons 87.00mm / 3.425in Bore DLC Coated Piston Ring Set 4-Cyl

$311.02
JEPUX1004-3425
Engine Components JE Pistons Piston Rings
JE Pistons 87.00mm / 3.425in Bore DLC Coated Piston Ring Set 4-Cyl
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JE Pistons

JE Pistons Ring Sets 1/6-1/6-3/16-3.840

$131.99
JEPJ100F6-3840-5
Engine Components JE Pistons Piston Rings
JE Pistons Ring Sets 1/6-1/6-3/16-3.840
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JE Pistons

JE Pistons Nissan VK56DE 3.858in Bore -17.3cc Inv. Dome/Dish Pistons - Set of 8

$1,749.99
JEP371790
Engine Components JE Pistons Piston Sets - Forged - 8cyl
Sport Compact, Import and European forged pistons from JE Pistons are the result of over 75 years of industry leading experience extended to our...
JE Pistons - Set of 4 Nissan SR20DET 89mm Bore 8.5:1 Custom Pistons - Set of 4 JE Pistons - Set of 4 Nissan SR20DET 89mm Bore 8.5:1 Custom Pistons - Set of 4 Quick View
JE Pistons

JE Pistons - Set of 4 Nissan SR20DET 89mm Bore 8.5:1 Custom Pistons - Set of 4

$899.99
JEP317918
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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JE Pistons

JE Pistons Oil Rail Support Ring

$8.99
JEP3905-173
Engine Components JE Pistons Piston Rings Under 100
JE Oil Rail Supports feature a special locking detent to prevent rotation of the oil rail and keep the rail support gap 90? from...
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JE Pistons

JE Pistons 2008+ VW TSI 2.0 Turbo Kit 83mm Bore .5 Size -7.8 Dome R Skirt Piston (Single)

$299.99
JEP329245S
Engine Components JE Pistons Pistons - Forged - Single
Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applicationsDesigned specifically for each engine and use application to...
JE Pistons Pin - .912in X 2.250in - 0.140in Straight Wall - Single Pin Quick View
JE Pistons

JE Pistons Pin - .912in X 2.250in - 0.140in Straight Wall - Single Pin

$20.99
JEP912-2250-14-51C
Engine Components JE Pistons Piston Pins Under 100
JE Pistons is a distributor of Trend Performance Wrist Pins. Trend Wrist Pins are made in the USA from premium H-13 steel, making them...
Photo - Primary User 1 Quick View
JE Pistons

JE Pistons Nissan SR Series 89.00mm Bore 1.260in CH -19.6cc Dish Piston - Set of 4

$899.99
JEP318016
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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JE Pistons

E Pistons 500+ BBC DOME - Single Piston

$224.99
JEP194964S
Engine Components JE Pistons Pistons - Forged - Single
Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applicationsDesigned specifically for each engine and use application to...
JE Pistons Toyota 5S-FE w/ 3S-GTE Head 88mm Bore 9.0:1 CR -12.50cc Dish (Set of 4) JE Pistons Toyota 5S-FE w/ 3S-GTE Head 88mm Bore 9.0:1 CR -12.50cc Dish (Set of 4) Quick View
JE Pistons

JE Pistons Toyota 5S-FE w/ 3S-GTE Head 88mm Bore 9.0:1 CR -12.50cc Dish (Set of 4)

$899.99
JEP361469
Engine Components JE Pistons Piston Sets - Forged - 4cyl
Sport Compact, Import and European forged pistons from JE Pistons are the result of over 75 years of industry leading experience extended to our...
JE Pistons Ring Sets 1.0-1.2-2.8-91.50 Quick View
JE Pistons

JE Pistons Ring Sets 1.0-1.2-2.8-91.50

$38.99
JEPJG1001-3602
Engine Components JE Pistons Piston Rings Under 100
JE Piston Rings are designed to maximize horsepower through precision sealing of combustion pressure. They are offered in a huge selection of sizes, various...
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