Name: Alliant Power AP57003 Fuel System Contamination Kit
Brand: Alliant Power
SKU: AP57003

20-22 Ford 6.7L Powerstroke Alliant Power Fuel Contamination Kit

20-22 6.7L Powerstroke Alliant Fuel System Contamination Kit AP57003

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Refundable Core Charge

$4,713.28

Part Number: AP57003
Est. Ship Time: Contact to Confirm Availability

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The Alliant Power AP57003 Fuel System Contamination Kit is designed to repair catastrophic diesel fuel system failures on 2020-2022 Ford 6.7L Powerstroke trucks. This kit replaces the factory fuel contamination assembly LC3Z9B246A and restores the high-pressure diesel fuel system after contamination caused by injection pump failure, DEF contamination, or poor fuel quality.

If your truck developed a P0087 fuel rail pressure low code, experienced CP4 injection pump failure, or had Diesel Exhaust Fluid accidentally added to the diesel tank, debris can quickly circulate through the fuel rails, injectors, and fuel lines. Once contamination spreads through the high-pressure fuel system, replacing only the injection pump often leads to repeat failures.

This contamination repair kit restores proper fuel delivery using OE or OE-equivalent components including the Bosch CP4 injection pump LC3Z9A543A, fuel rails LC3Z9D280C and LC3Z9D280D, and injectors associated with OE numbers LC3Z9H529A and LC3Z9H529B.

If your truck experienced diesel fuel contamination or injection pump failure, learn more here:

Diesel Fuel Contamination Repair Kits

Refundable Core Charge Applies. Must return fuel rails, injectors, & CP4 Injection Pump for full core credit. Customer is responsible for core return shipping.

Common Causes of Diesel Fuel System Contamination

Injection pump internal failure due to poor lubrication
Metal debris circulating through fuel rails and injectors
Diesel Exhaust Fluid accidentally added to the fuel tank
Water contamination in diesel fuel
Debris entering the high-pressure fuel system
Fuel filtration failure

Features and Benefits

3 year unlimited mileage warranty
100% genuine OE or OE equivalent validated components
Fuel system components tested at 15 inspection points
Complete high-pressure fuel system replacement solution
USA assembled in an ISO 9001:2015 certified facility

Kit Includes

1x Bosch CP4 Injection Pump OE# LC3Z9A543A
8x Bosch OE Injectors OE# LC3Z9H529A / LC3Z9H529B
8x High Pressure Injector Lines OE# LC3Z9A337A / LC3Z9A337B
4x Pump-to-Rail Lines OE# LC3Z9A337C / LC3Z9A337D / LC3Z9A337E / LC3Z9E964B
1x Injector Return Line OE# LC3Z9A564B
1x Pump Supply Return Line OE# LC3Z9J280A
1x Right High Pressure Fuel Rail OE# LC3Z9D280C
1x Left High Pressure Fuel Rail OE# LC3Z9D280D
1x Fuel Filter Kit OE# PC3Z9N184C (FD4647)
1x Fuel Cooler OE# LC3Z9N103A
Installation gaskets and seals

Fitment

Vehicle	Engine	Years
Ford F-250	6.7L Powerstroke	2020-2022
Ford F-350	6.7L Powerstroke	2020-2022
Ford F-450	6.7L Powerstroke	2020-2022
Ford F-550	6.7L Powerstroke	2020-2022

Specifications

Specification	Value
Brand	Alliant Power
Core Item No.	COR65316
Manufacturing Label	Remanufactured
Gross Weight	48 lb
Country of Origin	US
UPC	843497112616
No.	APP41227

Full Cross Reference Part Numbers

This contamination repair kit replaces or cross references the following OEM, Bosch, and aftermarket fuel system components used on 2020-2022 6.7 Powerstroke engines.

0 445 010 859

0 445 218 029

0 445 218 031

0445010859

0445118028

0445118058

0445218029

0445218031

LC3Z9A337A

LC3Z-9A337-A

LC3Z9A337B

LC3Z-9A337-B

LC3Z9A543A

LC3Z-9A543-A

LC3Z9B246A

LC3Z-9B246-A

LC3Z9B246B

LC3Z-9B246-B

LC3Z9D280C

LC3Z-9D280-C

LC3Z9H529A

LC3Z-9H529-A

LC3Z9H529B

LC3Z-9H529-B

LC3Z9N103A

LC3Z-9N103-A

Related Powerstroke Fuel Contamination Kits

Frequently Asked Questions

Click each question below to expand the answer.

What causes CP4 pump failure on a 6.7 Powerstroke?

CP4 pump failure is typically caused by lack of lubrication, contaminated diesel fuel, or internal wear that releases metal debris into the fuel system.

What does P0087 mean on a Powerstroke?

P0087 indicates low fuel rail pressure, which often occurs when the high-pressure fuel pump or related fuel system components fail.

Why replace the entire fuel system after contamination?

Metal debris from a failed pump can circulate through rails and injectors. Replacing the full high-pressure fuel system helps prevent repeat failures.

Can DEF destroy a diesel fuel system?

Yes. If DEF is accidentally added to the diesel tank it can contaminate the injection pump, rails, injectors, and related fuel system components.