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SKU:
NLT2T04385
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Fuel Pump for Grasshopper 721D/721D2/721DT2/322D with Kubota Engine – 15821-52030
$59.49
In Stock
$59.49
Sale price
$59.49
Regular price
This fuel pump fits Grasshopper diesel mower applications using Kubota engines and reference 15821-52030.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
| Grasshopper mowers | 721D |
|---|---|
| 721D2 | |
| 721DT2 | |
| 322D | |
| Engine references seen in replacement listings | Kubota D722 |
| Kubota D902 |
Product Overview
The low-pressure pump supplies diesel from the tank/filter circuit to the engine's injection system. Weak pump output can show up as hard starting, loss of power under load, fuel starvation after the machine has been running, or difficulty re-priming after filter service.
Matching listings identify 15821-52030 on Grasshopper 721D, 721D2, 721DT2 and 322D machines and cross it to Kubota-powered applications including D722/D902 engine families in some replacement catalogs.
Key Features & Performance
- Restores low-pressure fuel delivery to the injection system
- Reference 15821-52030
- Direct application coverage for several Grasshopper diesel zero-turn/front-mount mowers
- Compact mechanical pump suited to Kubota small-diesel fuel systems
Part Numbers & Specifications
- Part number: 15821-52030
- Component: low-pressure fuel/feed pump
- Fuel: diesel
Before You Order
Confirm the number on the old pump or the Kubota engine parts diagram. If fuel starvation persists after replacement, inspect the tank outlet, hoses, filter, vent and injection-pump supply circuit.
Frequently Asked Questions
Can a weak lift pump cause power loss?
Yes. If the injection system is not receiving enough fuel under load, the engine can stumble or lose power.
Does this fit all Grasshopper diesel mowers?
No. It is associated with specific Kubota-powered models; confirm 15821-52030 or engine fitment.
Should the fuel filter be checked too?
Yes. A restricted filter can mimic pump failure and should be inspected during diagnosis.