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Malleable Fittings · Hardware & Fasteners
3BLK90
In stock · ships from Knoxville
This is a 3-inch black malleable iron 90-degree elbow with female NPT threads on both ends.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 1 applications
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All confirmed applications for this part number.
Universal fit
Used wherever a 3-inch NPT 90° elbow is required in truck air, fuel, or gas systems; not specific to any make or model.
Part data verified against 5 catalog sources
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It is commonly used on heavy-duty trucks for air system plumbing, fuel lines, and LP gas piping. The fitting is designed for gas, air, and LP applications (not for potable water), and should be replaced if it shows signs of corrosion, stress cracking, or thread damage that could cause leaks. Always check local plumbing and gas codes before installation.
Part Number: 3BLK90
390* BLK ELBOW
Unit: ea
Dealer: Post Onsite
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