Product Details
Stamp 4W7020 configures as a slender cam-driven pencil dospenser for CAT 3400-series V8/V12 large-bore mechanical diesels (mining trucks, SR4 gensets, 3412C industrial). It entombs a pintle stem, compression coil, tuning stud, and a single-jet pencil head inside one elongated ferritic column clamped by a copper annulus at the head cup. Actuation threshold ~200–240 bar (shim/CPL variant), pencil-type spray, 17 mm hex nut, 60° cone. Neither electro-rail piece nor HEUI cartridge nor loose spray insert. Aliases: CAT 4W-7020 / 0R-8791 / CA4W7020.
Video Description
Product Parameters
|
Part number |
4W7020 |
|
Project |
Fuel Injector |
|
Material |
45# steel |
|
Type |
Oil pump, oil nozzle |
|
Status |
New |
|
Compatible models |
Caterpillar CAT Engine 3408, 3408B, 3408C, 3412, 3412B, 3412C |
|
Price |
7-12 USD |
|
Shape |
Standard fuel injector shape |
|
Working temperature |
Suitable for normal working temperature of diesel engine |
|
Delivery time |
3-10 working days (delivery time varies depending on quantity and season) |
|
MOQ |
4 |
|
OEM |
Acceptable (customized labels, tags, logos) |
|
Sample |
Available (sent for inspection first) |
|
Production capacity |
150000 pieces/year |
Our Advantages
Well-tuned internal fuel galleries achieve precise metering synchronization, significantly mitigating abrasion on adjacent contact surfaces across variable operating speeds and enhancing energy retention during idle standby and transoceanic freight transportation. Every production batch undergoes stringent assessment at accredited inspection centres to validate preset pressure specifications, robust assembly sealing and consistent spray atomization properties, securing extended service longevity under fast-cycle manufacturing environments. The design supports full interchangeability in accordance with OEM service standards, allowing swift replacement without angular readjustment during routine maintenance, which effectively minimizes equipment downtime and reduces correlated operational expenditures. Encased in a heavy-duty robust housing, it delivers dependable, low-maintenance performance optimized for overland haulage vehicles and stationary on-site auxiliary power units.
FAQ
1.Spray insert, electro-rail module, or cam-driven pencil rod?
Cam-driven pencil rod - stem, coil, head, stud in one column. No detached jet piece, no winding, no KDAL sleeve, not 2645K011 mech screw, not 364-7040 rail dispenser, not LJBB03202A electromagnet column.
2.4W7020 ex 3412C into 3408B head - direct mount or gasket check?
Bore and copper seat mate across 3408/3412 decks (pencil family). But 3412C CPL bears stouter shim stack than 3408B; blind fit yields lopsided cylinder soot, no ECU code (pure mechanical). Bench threshold before batch swap.
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