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Aluminium vented non-locking fuel cap with safety chain

Velvac

Velvac 600184 Vented Nonlock Fuel Cap

SKU CH-QEY6-ZBJ5Q

Vented non-locking aluminum fuel cap with 3-1/2 inch female threads at 8 per inch for diesel tanks meeting 49 CFR 393.67

  • Vented design releases pressure safely on diesel tanks
  • Non-locking cap allows quick refuelling without a key
  • Aluminium construction resists corrosion for long service life
  • Meets 49 CFR 393.67 standard for fuel-system safety
  • Includes safety chain and crossbar to prevent loss

Purpose and fit

The Velvac 600184 is a vented, non-locking fuel cap made from aluminium for diesel tanks. It suits fleet operators and maintenance teams who need a direct replacement that meets the 49 CFR 393.67 standard and includes a safety chain with crossbar.

Thread verification

Before ordering, confirm the tank filler neck uses a 3-1/2 inch female thread with 8 threads per inch. The cap diameter is 3 3/8 inches, so the mating surface must match these dimensions for a proper seal.

Sustained operation

The aluminium construction resists corrosion from diesel fuel and road salt during continuous service. The vented design maintains consistent pressure equalisation over long duty cycles, and the attached safety chain prevents loss during repeated removal and refitting.

Highlights

  • Vented design releases pressure safely on diesel tanks
  • Non-locking cap allows quick refuelling without a key
  • Aluminium construction resists corrosion for long service life
  • Meets 49 CFR 393.67 standard for fuel-system safety
  • Includes safety chain and crossbar to prevent loss

Specifications

BrandVELVAC

Questions about this item

Does the Velvac 600184 fuel cap come with the safety chain and crossbar attached, or do I need to order them separately?

The cap includes a safety chain and crossbar, so no separate purchase is required for those components.

How do I confirm that the 3-1/2 inch female thread with 8 threads per inch matches my diesel tank?

Measure the tank opening; it must accept a 3-1/2 inch female thread at 8 threads per inch for this cap to seal correctly.

What does compliance with 49 CFR 393.67 mean for daily use on a diesel tank?

It certifies the vented, non-locking design meets federal safety standards for fuel retention and vapour venting during vehicle operation.

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