YNF16921 292-3751 fuel transfer pump supplies stable diesel flow for CAT320D C6.4 engines with 17T drive gear.
Direct replacement for Caterpillar 292-3751 fuel transfer pump
Designed for CAT320D / C6.4 engine with 17-tooth drive gear
Ensures stable diesel pressure and smooth engine operation
High-strength internal components for extended durability
Ideal for excavator fleets, service shops, and parts distributors
The YNF16921 fuel transfer pump (292-3751) is designed for the CAT320D excavator equipped with the C6.4 diesel engine, delivering consistent and reliable fuel supply to the injection system. With a 17-tooth drive gear, this pump ensures precise rotational timing and stable pressure output, improving engine responsiveness and fuel efficiency.
Manufactured from wear-resistant metals and built with reinforced pump internals, the YNF16921 transfer pump maintains stable operation under long working hours, high temperature, and continuous load. It prevents issues such as fuel starvation, hard starting, and low engine power—common symptoms caused by worn or weak feed pumps.
As an OEM-equivalent replacement, this fuel pump fits directly onto the C6.4 engine, making it a preferred option for excavator repair centers, construction fleets, and aftermarket parts distributors seeking dependable performance and competitive pricing.
| Parameter | Details |
|---|---|
| YNF Part Number | YNF16921 |
| OEM Number | 292-3751 |
| Applicable Engine | C6.4 Diesel Engine |
| Applicable Machine | CAT320D Excavator |
| Drive Gear | 17 Teeth |
| Function | Supplies fuel to injection pump / maintains fuel pressure |
| Material | High-strength alloy + precision pump components |
| Resistance | Wear, corrosion, high temperature |
| Installation | Direct OEM replacement |
| Brand | YNF |
| Origin | China |
| MOQ | 1 Piece |
| Shipping | Sea, Air, Express |
| Payment Terms | T/T, PayPal, Western Union |
| Application Area | Description |
|---|---|
| Excavator Fuel System | Maintains steady diesel delivery to C6.4 engine |
| Diesel Engine Repair | Replaces worn or weak fuel transfer pumps |
| Construction Machinery | Ensures smooth operation under heavy load |
| Aftermarket Distribution | Suitable for excavator parts wholesalers |
Related Products:
CAT C6.4 Injector
CAT320D Fuel Filter Base
Excavator Fuel Feed Pumps
17T Gear Diesel Transfer Pumps
FAQs：
Q: Does this pump fit the CAT320D with C6.4 engine?
A: Yes, it is a direct replacement for 292-3751.
Q: What is the gear tooth count?
A: 17 teeth.
Q: Does a weak transfer pump affect engine power?
A: Yes, poor fuel supply can cause low power, hard starting, and misfire.
The YNF16921 292-3751 fuel transfer pump provides stable diesel supply for CAT320D C6.4 engines, improving start-up performance, fuel efficiency, and power output. With durable construction and OEM-level fitment, it meets the demands of heavy-duty excavation work. YNF Machinery offers reliable quality, competitive pricing, and stable stock—helping repair shops, contractors, and distributors keep their machines running efficiently. Contact us today for your quotation.
