The Alliant Power AP57008 is a remanufactured fuel contamination kit for the Bobcat / Doosan D24 2.4L four-cylinder engine with Delphi common-rail injection. It replaces the whole high-pressure system at once: a remanufactured Delphi pump, four remanufactured Delphi injectors, a remanufactured high-pressure rail, the five high-pressure lines, both return lines and a fuel filter/water separator assembly. It replaces the Bobcat 7430022REM kit and is listed for the Bobcat E45 excavator, the S530, S570, S590 and S650 skid-steer loaders and the T450, T550, T590, T630 and T650 compact track loaders with the D24.
Use it when the fuel system has been contaminated, for example by DEF poured into the fuel tank or a bad load of fuel. Contamination spreads through the pump, rail and injectors, so replacing only the part that failed often leads to a repeat failure. Drain and clean the tank and flush the low-pressure side before you install the kit.
Confirm Fitment Before You Order
Bobcat also built S630, S650, T630 and T650 machines with a Kubota V3307 engine, and D18 and D34 engines take Alliant Power AP57007 and AP57009 instead. Send us the machine model and full serial number, plus the engine serial number. Call 530-668-0818 and we will confirm the exact match at no charge before anything ships.
Specifications
| Part number | AP57008 |
| Brand | Alliant Power |
| Condition | Remanufactured |
| Warranty | Alliant Power factory warranty on this kit. Call us and we handle the claim. |
| Type | Fuel Contamination Kit (Common-Rail Pump, Injectors, Rail and Lines) |
| Engine | Bobcat / Doosan D24 2.4L, Delphi common rail |
| Pump | 1 remanufactured Delphi common-rail pump (Bobcat 7249380), with mounting O-ring |
| Injectors | 4 remanufactured Delphi injectors (Bobcat 7275454), with chamber gaskets and O-rings |
| Rail | 1 remanufactured high-pressure rail (Bobcat 7030409) |
| Lines | 4 rail-to-injector lines, 1 pump-to-rail line, 1 injector return line, 1 pump return line |
| Filter | Fuel filter and water separator assembly (Bobcat 7400454) |
| Replaces | Bobcat 7430022REM |
| Core charge | Refundable in full when we receive your rebuildable core |
| Shipping weight | 30 lb |
Fits / Applications
- Bobcat E45 compact excavator with D24 engine
- Bobcat S530, S570, S590 and S650 skid-steer loaders with D24 engine
- Bobcat T450, T550, T590, T630 and T650 compact track loaders with D24 engine
Each injector has a trim code that must be entered in the machine ECM, and the new pump may also need to be coded to the ECU. Bobcat notes its equivalent kit requires programming by an authorized Bobcat dealer and that skipping it can damage the engine, so line up dealer-level software before the machine goes back to work. The kit list shows no pump drive gear, so plan to move the gear from the old pump. Drain and clean the tank and supply lines before start-up, and use the supplied O-rings and gaskets.
Part Numbers & Cross Reference
Bobcat kit (remanufactured) 7430022REM · Bobcat kit 7430022 · Bobcat pump (in kit) 7249380 / 7516847 · Bobcat injector (in kit) 7275454 / 7516848 · Bobcat rail (in kit) 7030409 · Delphi injector (in kit) 28337917 · Doosan injector (in kit) 400903-00074D
Cross-reference numbers can change with engine serial, build year and emissions tier, so treat this list as a starting point. Send us your engine serial number and we will confirm the exact match against your build before anything ships. That check is free and takes a few minutes.
Frequently Asked Questions
What is included in the Alliant Power AP57008 kit?
A remanufactured Delphi pump, four remanufactured Delphi injectors, a remanufactured high-pressure rail, the five high-pressure lines, both return lines and a fuel filter/water separator assembly. The kit list shows no pump drive gear, so plan to move the gear from the old pump.
Which Bobcat machines is AP57008 listed for?
The Bobcat E45 excavator, the S530, S570, S590 and S650 skid-steer loaders and the T450, T550, T590, T630 and T650 compact track loaders with the D24 2.4L engine. It replaces the Bobcat 7430022REM kit.
How do I know my Bobcat has the D24 and takes AP57008?
Bobcat also built S630, S650, T630 and T650 machines with a Kubota V3307 engine, and D18 and D34 engines take Alliant Power AP57007 and AP57009 instead. Call 530-668-0818 with the machine model, full serial number and engine serial number and we will confirm the match at no charge before anything ships.
Is there a core charge on AP57008, and does the kit need programming?
AP57008 is a remanufactured kit, so a refundable core charge is added at checkout and refunded when we receive the rebuildable core. Each injector has a trim code that must be entered in the machine ECM, and the replacement pump may also need to be coded to the ECU.
Related Parts
- Bobcat / Doosan D18 1.8L & D24 2.4L Common-Rail Fuel Injection Pump | Delphi EX836101 Remanufactured
- Bobcat / Doosan D24 2.4L & D18 1.8L Tier 4 Common-Rail Fuel Injector | Delphi 28337917 New
- Bobcat D34 Fuel Contamination Kit | Alliant Power AP57009
Why Buy From Valley Fuel Injection
We are a diesel fuel-injection and turbocharger shop in Woodland, CA, rebuilding pumps, injectors and turbos on our own benches since 1993, not a drop-ship storefront. When you call, you talk to the people who test these units. Confirm fitment against your engine serial, VIN or build date before you order. Call us and we will help you match the right part.
UPS Ground anywhere in the lower 48. A refundable core deposit is added at checkout and refunded in full when we receive your rebuildable core. Questions on fitment? Call 530-668-0818.
Pricing covers the unit itself. Any applicable sales tax and the refundable core charge are additional; shipping is calculated at checkout. Buying tax-exempt? Qualifying diesel repair shops, fleets, farms, and agricultural operations can purchase tax-free. Set up tax-exempt purchasing once and every qualifying order is tax-free going forward.










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