Collection: 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 Harley Davidson 3.528 in. Bore Single 133446S
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JE Pistons Harley Davidson 3.503 in. Bore Single 133443S
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JE Pistons Harley Davidson 3.528 in. Bore Single 132989S
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JE Pistons Harley Davidson 3.508 in. Bore Single 132987S
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JE Pistons Harley Davidson 3.503 in. Bore Single 132986S
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JE Pistons Harley Davidson 3.498 in. Bore Single 132985S
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JE Pistons Kawasaki 76.00 mm Bore Single 132493S
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JE Pistons Suzuki 77.00 mm Bore Single 131367S
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JE Pistons Suzuki 85.00 mm Bore Single 130894S
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JE Pistons Ducati 96.00 mm Bore Single 130590S
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JE Pistons Suzuki 83.00 mm Bore Single 130302S
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JE Pistons Suzuki 82.00 mm Bore Single 130301S
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JE Pistons Suzuki 78.00 mm Bore Single 130299S
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JE Pistons Harley Davidson 3.503 in. Bore Single 129857S
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JE Pistons Harley Davidson 3.498 in. Bore Single 129856S
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JE Pistons Suzuki 78.00 mm Bore Single 129855S
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JE Pistons Suzuki 79.50 mm Bore Single 129682S
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JE Pistons Suzuki 85.00 mm Bore Single 129315S
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JE Pistons Suzuki 83.00 mm Bore Single 129313S
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JE Pistons Suzuki 80.00 mm Bore Single 129310S
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JE Pistons Suzuki 82.00 mm Bore Single 128885S
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JE Pistons Suzuki 76.00 mm Bore Single 128820S
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JE Pistons Suzuki 86.00 mm Bore Single 128490S
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JE Pistons Suzuki 78.00 mm Bore Single 128324S
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