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What Is The Leaf Thickness For The EMCO 3-Leaf Double-Eye Spring EM66AJ  

Updated 07/15/2025 | Published 07/11/2025

Question:

does this spring have 3/8inch thick leaves

0

Expert Reply:

Hello Jay, thanks for reaching out. The EMCO 3-Leaf Double-Eye Spring # EM66AJ has 1/4" thick leaves. It is rated for a 4,000 lb axle.

expert reply by:
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Jesse M
EM66AJ
EM66AJ
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Jay S. profile picture

Jay S.

7/14/2025

Jesse, did you measure with a caliper or refer to the documentation? There is not other 3 leaf 25.25 spring around w/ 1/4" leafs and 4k capacity. Even the 4 leaf 1750's have 5/16" leafs.

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Etrailer Expert

Jesse M.

7/15/2025

@JayS I was referring to the documentation so I grabbed my caliper and went to our warehouse and measured one. Each leaf is 0.40" thick. Total spring thickness is 1.20". I will get our website updated. Thanks for pointing that out!

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