CAT 3406 / 3408 Injector Description
YNF16959 is a premium mechanical fuel injector engineered to replace CAT part numbers 4W-7017, 0R-3421, and 0R-1744. Designed for CAT 3406 and 3408 engines, this injector ensures precise fuel delivery and stable combustion in mechanically governed diesel systems. Known for its rugged performance and long service life, it is built using high-grade steel and tight-tolerance manufacturing. Commonly found in trucks, construction equipment, generators, and marine vessels, this injector is widely trusted by diesel engine rebuilders and heavy-duty parts distributors worldwide.
CAT 3406 / 3408 Injector Technical Sheet
| Parameter |
Details |
| Part Numbers |
4W-7017 / 0R-3421 / 0R-1744 |
| YNF Part Number |
YNF16959 |
| Compatible Engines |
CAT 3406 / CAT 3408 |
| Fuel System Type |
Mechanical Direct Injection |
| Injection Method |
High-pressure, mechanically actuated |
| Application |
Trucks, Marine Engines, Generators, Construction |
| Material |
Hardened alloy steel, anti-corrosion coating |
| Country of Origin |
China |
| Brand |
YNF |
| MOQ |
1 Piece |
| Shipping Method |
Sea, Air, Express |
| Payment Method |
T/T, PayPal, Western Union |
4W-7017 Injector Applications
| Application Area |
Description |
| CAT 3406 / 3408 Engines |
Core fuel injection component in heavy-duty diesel engines |
| On-Highway Trucks |
Used in long-haul CAT-powered transport vehicles |
| Industrial Diesel Generators |
Supports reliable fuel delivery for power generation |
| Marine & Construction |
Found in vessels and heavy earthmoving machinery |
4W-7017 Injector Detail Display
Related Products:
-
Fuel Pump for CAT 3406 / 3408
-
Injector Washer Kit and Gaskets
-
Engine Rebuild Kit for CAT 3400 Series
FAQs:
Q: Are these injectors new or remanufactured?
A: YNF16959 injectors are brand-new and manufactured to OEM standards.
Q: Is this injector suitable for marine-grade CAT 3408 engines?
A: Yes, it’s used across both land and marine versions of CAT 3406/3408.
Q: Do you offer support for large volume procurement?
A: Yes, bulk pricing, OEM-style packaging, and export-ready logistics are available.
