Description
Keep your fuel, oil, or brake lines sealed tight with the Aeroquip #4 Tube Sleeve Steel FCM3668 — a trusted solution built for performance applications where reliability is non-negotiable. Crafted from durable steel with a premium nickel-plated finish, these sleeves deliver lasting corrosion resistance and a secure, leak-free connection every time. Sold in a convenient set of six, you’ll have everything you need to tackle multiple fittings in one shot.
- Part Number: FCM3668
- Type: Tube sleeve fitting
- AN Size: 4 AN
- Tube Size: 1/4 in.
- Material: Steel
- Finish: Nickel plated
- Quantity: Set of 6
Whether you’re building a race car, restoring a classic, or upgrading a performance street machine, these Aeroquip sleeves are a no-brainer addition to your plumbing setup. Stock up and build with confidence.






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