Denso 094000-0480 is the Denso HP0 type common rail supply pump: two pumping heads with orange capped suction control valves, a fuel feed pipe stub, a taper drive shaft with thread and a cast aluminium body with the number plate. It is used on Isuzu 6WG1 and 6UZ1 engines. This aftermarket version is made to the same mounting and connections as the original, so it fits where the old one came off.
The same part is also sold as Denso 094000-0484, Isuzu 8-97603414-0 and 8-97603414-4.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
Technical properties & sizes
Specifications
| Part Type |
Fuel Injection Pump |
| Replaces |
Denso 094000-0480 |
| Engine |
Isuzu 6WG1, 6WF1, 6UZ1 |
| Type |
Common rail supply pump (Denso HP0) |
| Cross references |
Denso 094000-0484, Isuzu 8-97603414-0, 8-97603414-4 |
| Fits |
Isuzu 6WG1, 6WF1 and 6UZ1 diesel engines |
| Condition |
New, aftermarket |
| Stat. HS-Code |
841330 |
| Country of Manufacture |
China |
Compatibility
Machines
Isuzu 6WG1, 6WF1 and 6UZ1 diesel engines
Check the part number on your old unit before ordering.
Part numbers
| Denso Part No.(SPM Part No.)
|
Fits |
|
094000-0480(SPM-HEP-5109)
|
Isuzu 6WG1, 6WF1 and 6UZ1 diesel engines |
|
094000-0484(SPM-HEP-5109)
|
Isuzu 6WG1, 6WF1 and 6UZ1 diesel engines |
|
8-97603414-0(SPM-HEP-5109)
|
Isuzu 6WG1, 6WF1 and 6UZ1 diesel engines |
|
8-97603414-4(SPM-HEP-5109)
|
Isuzu 6WG1, 6WF1 and 6UZ1 diesel engines |
Applications & use cases
Hard starting and low power
A worn injection pump delivers less fuel at lower pressure: long cranking and weak power under load.
Smoke and uneven running
Uneven delivery between cylinders shows as smoke and rough running.
Fuel leaks
Leaks from the pump body or shaft seal mean it is time to replace it.
Fitting tips
Set the pump timing to the engine maker's figure, bleed the fuel system, and use clean fuel and new filters.
Price beat guarantee
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller |
Price |
Checked |
| eBay, aftermarket seller |
USD 591.50 |
2 Nov 2026 |
| Amazon (ShuYun-Store) |
USD 748.00 |
2 Nov 2026 |
| Buy Machinery Parts |
USD 780.00 |
2 Nov 2026 |
| YEM Parts |
USD 789.04 |
2 Nov 2026 |
| VEP Diesel |
USD 999.00 |
2 Nov 2026 |
| Spare Part Mart |
USD 451.49 |
Today |
Our price of USD 451.49 is 24% to 55% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Frequently asked questions
Will it fit my Isuzu 6WG1?
Yes, it was made for the Isuzu 6WG1, and 2 more listed under compatible equipment. Check the old fuel injection pump is marked 094000-0480 or one of the cross references, because makers change parts between serial ranges.
How often should I replace the fuel injection pump on my Isuzu 6WG1?
On the Isuzu 6WG1, often 5,000 to 10,000 hours with clean fluid, much less with dirt or air in the system. It is usually changed on condition, not by hours.
What are the signs the fuel injection pump needs replacing?
Leaks from the seal or weep hole, noise or whining, overheating, or falling pressure or flow under load.
What should I do with the gasket faces?
Clean them right back to metal and fit the new gasket or O-ring dry, unless the engine manual calls for sealant.
Should I prime it before starting?
Yes. Fill the pump and its suction line with clean fluid before the first start. Running it dry, even for a few seconds, can score it.
Is this a genuine Denso 094000-0480?
No. It is an aftermarket fuel injection pump made to replace the Denso 094000-0480. It is not made by the original manufacturer; the number only shows what it replaces.