CAT Genuine Parts For 396-9451 3969451 Gear AS CAT 390F Excavator Engine Parts

Specification

Description

Part Number: 396-9451, gear assembly, compatible with 390F excavator engine equipment. Made by integrated cast steel forming process. The gear body is equipped with precise module gear teeth, with a spline inner hole at the center. Three positioning mounting holes are reserved on the gear plate, and shaft shoulders are designed on both sides for accurate connection with the engine transmission mechanism. Matched with original packaging, the product features tight dimensional tolerances. It is applied to power meshing and transmission of engine timing, fuel pump and other transmission systems to ensure matched assembly of the whole transmission structure.

Advantage

Strict processing precision with regular polished gear profile and even meshing clearance. It fits perfectly during installation without secondary trimming.
Constructed with high-strength alloy steel via forging and casting, resisting wear and deformation. Hardly suffer tooth cracking or breakage under long-term heavy-load operation.
Standard spline inner hole size and unified positions of three mounting holes allow direct alignment when replacing old parts, delivering reliable compatibility.
Calibrated with dynamic balance, it generates slight vibration at high rotating speed and avoids extra engine noise.
In stock with matched package for stable supply. Related after-sales details are negotiable.

Performance

Transmission Performance: Smooth meshing of gear teeth reduces power loss and guarantees steady engine power output without jamming.
Wear Resistance & Durability: Hardened heat treatment on the surface enables resistance to engine oil corrosion. The gear teeth wear slowly under long-hour heavy-duty operation for extended service life.
Structural Stability: Thickened gear disc plus double-side shaft shoulders provide strong load-bearing capacity and prevent deformation under alternating torque.
Compatibility Performance: Custom-made for the transmission system of 390F excavator engine, with transmission ratio fully matching the operating parameters of the whole machine.
Running Stability: Excellent rotational concentricity cuts extra abrasion of mating transmission parts and lowers the breakdown risk of the equipment.

FAQ

Q1: When will my goods be shipped?
A: Your goods will be dispatched within 24 hours after payment confirmation.

Q2: What is the lead time?
A: We maintain sufficient stock for immediate fulfillment.

Q3: What shipping methods do you offer?
A: We ship via sea, air, or express (DHL, FedEx, TNT, UPS, EMS).

Q4: What is the delivery time?
A: Stock items take 2 to 5 days; pre-order items take 7 to 15 days. Contact us for specifics.

Q5: How can I track my shipment?
A: We will provide you with the tracking number as soon as your order is shipped.

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