Primer Pump RE65265 for John Deere 4430 4440 4840 4050 4250 4450 4055 4455
This fuel primer pump is engineered as a direct replacement for the John Deere 4430 4440 4840 4050 4250 4450 4055 4455. Manufactured to meet or exceed OEM specifications, it delivers reliable performance in demanding conditions. Each unit is tested for fuel flow, pressure rating, and durability before leaving the factory to ensure consistent quality across every order.
Vehicle Compatibility
| Application | Details |
|---|---|
| John Deere 4430 4440 4840 4050 4250 4450 4055 4455 Replace Part Number: RE65265 Fit For | See product specifications |
| Cummins Engine: QSX15 Applications:Fit For | See product specifications |
| Hitachi Loader: LX150E | 2, LX150-3, LX150-5, LX230-5, LX120-3Fit For |
| John Deere Loader:435, 535, 844, 855, 244J, 304J, 335C, 430B, 430B Series II, 435 Series II, 435C, 437C, 530B, 624H, 644C, 644D, 644E, 644ER, 644EZ, 644G, 644H, 744E, 744H, 744J, 824J, 844J, TC62HFit For | See product specifications |
| John Deere Dump Truck: 250D, 300DFit For | See product specifications |
| John Deere Feller Buncher: 653E, 793DFit For | See product specifications |
| John Deere Excavator:330LC, 370, 330LCR, 450CLC, 450LC, 690B, 690C, 790, 792, 790D, 792DLC, 890, 890A, 892DLC, 990, 992D, 992DLC, 992ELCFit For | See product specifications |
| John Deere Harvester:3510, 5720, 5730, 5820, 5830, 6610, 6650, 6710, 6750, 6810, 6850, 6910, 6950, 7200, 7300, 7400, 7500, 7700, 7800Fit For | See product specifications |
| John Deere Skidder:460D, 540E, 540G, 548E, 548G, 640E, 640G, 640G | II, 640G-III, 648E, 648G, 648G-II, 648G-III, 660D, 740A, 740E, 740G, 748E, 748G, 848GFit For |
| John Deere Compactor: 646CFit For | See product specifications |
| John Deere Motor Grader: 670C, 670CH, 672CH, 770A, 770AH, 770B, 770BH, 770C, 770CH, 772A, 772AH, 772B, 772BH, 772CHFit For | See product specifications |
| John Deere Bulldozer: 750C, 850C, 750C | II, 850C-II, 850, 850B, 850C, 850C-II, MASTER TRAX, UNDERCARRIAGEFit For |
Replaces OEM Part Numbers
RE65265 • Deere • Engine • 10.1L • 10.5L • 12.5L • 13.5L • 4024HF285 • 4024HF295 • 4024HF297 • 4024TF • 4024TF220
Signs You Need a Replacement
If your equipment is showing any of these symptoms, the fuel pump may be the cause:
- Primer bulb stays flat — The internal check valves are worn and can’t pull fuel from the tank. Replace the primer pump to restore fuel flow.
- Air bubbles in the fuel line — A worn primer pump allows air to enter the system through the shaft seal or housing crack.
- Engine hard to start after filter change — After replacing the fuel filter, the system needs to be primed. If the primer bulb doesn’t firm up, the pump is likely faulty.
Bleeding the System
After installing the new primer pump, pump the bulb until it becomes firm. Crack open the fuel line at the engine end and pump until fuel flows out bubble-free. Tighten the fitting and pump the bulb a few more times to confirm it stays firm. Start the engine and let it idle for a minute. If the primer bulb goes soft after the engine stops, check for air leaks at all connections.
Frequently Asked Questions
Will this fit my John Deere 4430?
Yes. This part is designed to fit the John Deere 4430, 4440, 4840, 4050 among other models listed in the compatibility table above. Verify your specific model and engine code before ordering to ensure the correct fit.
Can I cross-reference RE65265 with Deere?
Yes. Both RE65265 and Deere are interchangeable OEM numbers for this part. They refer to the same component with the same specifications, just different part number revisions.
How do I bleed the fuel system after replacing the primer pump?
Pump the primer bulb until it becomes firm. Then crack open the fuel line at the engine end and pump until fuel flows out bubble-free. Tighten the fitting, pump the bulb a few more times to confirm pressure holds, then start the engine.
What tools do I need to install this on a John Deere?
Standard metric hand tools will handle most of the job – sockets, wrenches, and a torque wrench. For John Deere equipment, check the specific service manual for any special tools or torque values.
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