Cummins Expansion Plug 3004258 – Engineered for a Leak-Proof Seal

Keep your Cummins 6BT, 6CT, or NT855 engine running flawlessly with the Expansion Plug 3004258 — a compact yet critical component designed for long-lasting reliability. This plug plays a vital role in maintaining system pressure and preventing fluid leaks, making it essential for engines operating in trucks, construction equipment, or marine vessels. Built to withstand the demands of high-performance environments, it helps reduce wear and extend engine life.

Key Features and Benefits

• Reliable Sealing Performance
  Manufactured from corrosion-resistant materials, the 3004258 ensures a secure, long-term seal that prevents coolant and oil loss.

• OEM-Grade Compatibility
  Designed to meet Cummins specifications, it fits 6BT, 6CT, and NT855 engines precisely. OEM reference: 3004258.

• Easy Installation
  With a user-friendly design, this expansion plug allows for quick installation and minimal equipment downtime.

• Warranty Protection
  Covered by an 18-month warranty, it delivers dependable performance you can count on across heavy-duty applications.

Application Scope

Suitable for use in:

• Medium and heavy-duty trucks

• Earthmoving and construction machinery

• Marine engines and gensets

Its rugged design handles extreme vibration, pressure, and thermal stress, making it ideal for fleet operators and service professionals who prioritize durability and precision.

Why Choose Volgen Power

• Same-Day Shipping
  Place your order by 1 PM EST, Monday through Friday, to receive same-day dispatch.

• Technical Support
  Our Cummins specialists are ready to help you with fitment confirmation or troubleshooting guidance.

• Cost-Effective Quality
  We offer top-tier components at competitive prices to support maintenance efficiency and budget control.

Order Now

A small part with a critical role—don’t overlook the importance of the Expansion Plug 3004258.
Add it to your cart today to ensure optimal performance and leak protection for your Cummins engine.

Reminder: Please verify your engine model (6BT, 6CT, or NT855) before ordering. Contact us for assistance or explore our full Cummins parts catalog for more essential components.