Product Details
Stamp 7W7037 (CAT 7W-7037 service injector, reman twin 0R-3425) configures as a tappet-actuated fuel-dosing javelin for CAT 3406B/C (14 L inline-6) and 3412C (27 L V12) mechanically governed oil-burners in off-highway trucks (773B), excavators (375-A, 5080), SR4 gensets, marine 3412C, and pipeline power. It fuses a lift-valve, pressure-wound helix, calibration dowel, and a multi-aperture vaporizing head inside a CAT-profile polygonal housing sealed by a bronze crush washer. Combustion threshold ~2200 psi-class (shim/serial dependent), case-hardened ferrous alloy, 60° chamfer, overall length 221 mm. Neither a voltage-actuated rail device nor a hydraulically piloted capsule nor a solitary pencil emitter. Aliases: CAT 7W7037 / 7W-7037 / 0R-3425 / OR-3425 / CA7W7037.



Video Description
Product Parameters
|
Part number |
7W7037 |
|
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
Advanced fuel transit frameworks achieve meticulous flow regulation, effectively inhibiting contact surface abrasion across the entire operational speed bandwidth and preserving latent energy reserves during waterfront idle standby and global freight shipments. Each production lot undergoes rigorous quality authentication at certified testing centres to confirm standardized flow thresholds, sturdy structural bonding and replicable ejection profiles, maintaining stable operational dependability amid serial manufacturing workflows. This flexible layout supports full component interchangeability complying strictly with OEM maintenance requirements, allowing hassle-free replacement procedures without angular recalibration throughout routine service cycles. The design distinctly reduces equipment downtime and mitigates relevant administrative expenditure loads. Encased within a high-strength long-duty protective enclosure, the assembly offers consistent, minimal-maintenance performance purpose-built for highway cargo fleets and stationary backup power facilities.




FAQ
1.Solitary emitter, slim-tube atomizer, or tappet-actuated dosing javelin?
Tappet-actuated dosing javelin - lift-valve, helix, head, dowel in one housing. No loose multi-aperture insert, no solenoid winding, no KDAL envelope, not 8N7005/1705181 pencil barrels (those nest inside 1301806/1705187 class, 7W7037 is the 3406/3412 full lance), not 364-7040 flux-column, not LJBB03202A electro-doser.
2.7W7037 ex 3406B into 3412C head - direct latch or stack audit?
Passage bore and bronze washer align across 3406B/C and 3412/3412C decks (shared 7000-series cup class). But 3412C CPL often conceals a denser shim pad (~200 psi above 3406B baseline); unverified fit triggers asymmetrical cylinder haze, zero digital fault (purely mechanical). Bench crack-pressure before fleet-wide install - don't trust the etch.
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