Complete 6-Cylinder Renewal — Full Injector Set for Caterpillar 3406 & 3406C Engines

The Caterpillar 3406 and 3406C are among the most legendary inline-6 diesel engines ever built — trusted for decades in Class 8 trucks, heavy construction equipment, marine vessels, and stationary power applications. These engines are known for their durability and power, but worn injectors rob them of both: uneven fuel delivery across six cylinders means power loss, increased fuel consumption, and the black smoke that signals incomplete combustion. This matched set of 6 OEM-equivalent fuel injectors (130-5187 / 1305187) covers every cylinder in a single service, restoring factory fuel delivery and bringing your 3406 back to the performance it’s legendary for.

✅ Direct-Fit Compatibility

• Caterpillar Engines: 3406, 3406C
• Bolt-on replacement — no modifications required
• Suitable for Class 8 trucks, heavy construction equipment, marine, and stationary power applications

🔧 Why This Set Delivers

• OEM-matched spray pattern — precise fuel atomization for complete combustion, reduced smoke, and restored fuel economy
• 100% new aftermarket — not rebuilt or remanufactured; every injector starts with a full service life
• Full 6-cylinder matched set — uniform injection pressure across all six cylinders; eliminates the power imbalance of mixing worn and new injectors
• Dual OEM cross-reference — covers both 130-5187 and 1305187 formats for confirmed fitment confidence
• Withstands extreme injection pressures — built to handle the sustained thermal and mechanical loads of the 3406’s high-output fuel system
• No dealer markup — OEM-equivalent quality at a fraction of Cat dealer pricing

📦 What's Included

• 6 × Fuel Injector (130-5187 / 1305187)

🔑 Key Specs

• Part Numbers: 130-5187, 1305187
• Condition: 100% New Aftermarket
• Quantity: Set of 6 (full engine coverage)
• Fitment: Caterpillar 3406 / 3406C engines

The 3406 earned its reputation over millions of miles and hours. Give it the fuel system it deserves. Order today — in stock and ready to ship.