4W7015 Injector Pencil Nozzle Fuel injector for Cater-pillar 3204 Engines

The 4W7015 is a high-performance diesel fuel system component designed for heavy‑duty engine applications, widely used in industrial, construction, and agricultural machinery. Manufactured with premium alloy steel and precision machining, it ensures stable fuel delivery, high-pressure resistance, and long service life under harsh working conditions. It features excellent atomization performance, consistent injection timing, and reliable sealing, effectively improving combustion efficiency, reducing fuel consumption, and lowering exhaust emissions. This part is fully interchangeable with original equipment specifications, offering stable quality and easy installation. It is extensively applied to mid‑to‑large displacement diesel engines, matching with fuel injectors, plungers, fuel injection pumps, and engine systems. The 4W7015 delivers superior durability and operational stability, making it a reliable choice for engine maintenance, repair, and replacement in commercial and industrial diesel power systems.

Frequently Asked Questions

1. What engine does 4W7015 fit?

4W7015 is a fuel injector / nozzle that fits Cater-pillar diesel engines, mainly: CAT 3204 CAT 3208 CAT 3304 / 3304B CAT 3306 / 3306B CAT 3406 CAT 3408 CAT 3412

It is widely used in excavators, loaders, generators and construction machinery.

2. What is the cross reference for 4W7015?

Common cross reference part numbers for 4W7015: 0R1742 0R3419 4W7016 4W7017 4W7018 9L6969 (for early engine versions)

3. Are 4W7015 and 4W7016 interchangeable?

In most cases, YES. 4W7015 and 4W7016 are similar performance injectors for the same Cater-pillar engine series (3204, 3208, 3306, etc.). They are interchangeable in normal repair and replacement, but we still suggest confirming your engine serial number for 100% matching.

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