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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 JE STRAIGHT WALL PIN #S592Piston Pin

$17.99
JEP512-1535-10-5XC
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 Quick View
JE Pistons

JE Pistons JE STRAIGHT WALL PINPiston Pin

$17.99
JEP512-1450-10-5XC
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 Photo - Primary Quick View
JE Pistons

JE Pistons JE TAPERED WALL PIN .490 X 2.075 X 090WPiston Pin

$17.99
JEP490-2075-09-55S
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 Photo - Primary Quick View
JE Pistons

JE Pistons JE STRAIGHT WALL PIN .490 X 1.908Piston Pin

$17.99
JEP490-1908-06-51S
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...
Quick View
JE Pistons

JE Pistons BMW N54B30 - Single Piston

$349.99
JEP338094S
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...
Quick View
JE Pistons

JE Pistons 748 X 2.050 0.150 140W/Coated/Lapped Straight Wall Wrist Pin

$210.63
JEP748-2050-14-9DC
Engine Components JE Pistons Piston Pins
JE Pistons 748 X 2.050 0.150 140W/Coated/Lapped Straight Wall Wrist Pin
JE Pistons Honda K-Series 89.00mm Bore 12.5:1 CR 1.176 CD Dome Piston Kit - Set of 4 JE Pistons Honda K-Series 89.00mm Bore 12.5:1 CR 1.176 CD Dome Piston Kit - Set of 4 Quick View
JE Pistons

JE Pistons Honda K-Series 89.00mm Bore 12.5:1 CR 1.176 CD Dome Piston Kit - Set of 4

$949.99
JEP376672
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 Hyundai Theta Genisis 2.0T 86.25mm Bore 1.181CH Dome Piston Kit - Set of 4 JE Pistons Hyundai Theta Genisis 2.0T 86.25mm Bore 1.181CH Dome Piston Kit - Set of 4 Quick View
JE Pistons

JE Pistons Hyundai Theta Genisis 2.0T 86.25mm Bore 1.181CH Dome Piston Kit - Set of 4

$899.99
JEP361353
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 Chevrolet Small Block Stock Car 4.060in Bore 1.250 CD Flat Top -3.8cc - Set of 8 JE Pistons Chevrolet Small Block Stock Car 4.060in Bore 1.250 CD Flat Top -3.8cc - Set of 8 Quick View
JE Pistons

JE Pistons Chevrolet Small Block Stock Car 4.060in Bore 1.250 CD Flat Top -3.8cc - Set of 8

$734.99
JEP377964
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 Honda K-Series 87.5mm Bore 10.0:1 CR 1.176 CD Dome Piston Kit - Set of 4 JE Pistons Honda K-Series 87.5mm Bore 10.0:1 CR 1.176 CD Dome Piston Kit - Set of 4 Quick View
JE Pistons

JE Pistons Honda K-Series 87.5mm Bore 10.0:1 CR 1.176 CD Dome Piston Kit - Set of 4

$949.99
JEP376665
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 S50B30 FSR KIT - Single Piston

$299.99
JEP345627S
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...
Quick View
JE Pistons

JE Pistons BMW N54B30 84.5mm Bore 9.5:1 - Single Piston

$349.99
JEP338095S
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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