This is the Alliant Power AP63451, a new engine oil cooler kit. It replaces Ford 3C3Z6A642CA and International 1886511C93.
Alliant lists it for the 2003 to 2007 Ford 6.0L Power Stroke in the F-Series and Excursion, the 2004 to 2010 E-Series, the 2006 to 2010 4.5L LCF, the 2003 to 2007 International VT365, the 2006 VT275 and the 2007 to 2010 MaxxForce 5.
In the box, as Alliant lists it: the engine oil cooler, the mounting hardware and the installation seals and gaskets. Alliant’s catalog notes that it includes its AP0039 oil cooler gasket kit. Alliant’s AP63445 kit is this oil cooler kit together with the AP63446 EGR cooler kit.
Confirm Fitment Before You Order
Alliant lists this kit for the engines on this page. Send us your VIN or engine serial number before you order. Call 530-668-0818 and we will confirm the exact match at no charge before anything ships.
Specifications
| Part number | AP63451 |
| Brand | Alliant Power |
| Condition | New, genuine, in original packaging |
| Warranty | Manufacturer’s own warranty applies. Call us and we handle the claim. |
| Type | Engine oil cooler kit |
| Engines | Ford 6.0L and 4.5L Power Stroke, International VT365, VT275, MaxxForce 5 |
| Model years | 2003 to 2010 |
| Replaces Ford | 3C3Z6A642CA |
| Replaces International | 1886511C93 |
| In the kit | Oil cooler, mounting hardware, installation seals and gaskets (AP0039 gasket kit) |
| Shipping weight | 6 lb |
Fits / Applications
- Ford F-Series and Excursion 6.0L Power Stroke, 2003 to 2007
- Ford E-Series 6.0L Power Stroke, 2004 to 2010
- Ford 4.5L LCF Power Stroke, 2006 to 2010
- International VT365, 2003 to 2007
- International VT275, 2006
- International MaxxForce 5, 2007 to 2010
Follow the workshop manual for your engine when you fit this part.
Part Numbers & Cross Reference
Alliant Power AP63451 · Ford 3C3Z6A642CA · International 1886511C93
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
Does it come with the gaskets?
Yes. Alliant lists the installation seals and gaskets in the box, and its catalog notes the kit includes its AP0039 oil cooler gasket kit.
How does it relate to the AP63445 kit?
Alliant’s AP63445 kit is this oil cooler kit plus the AP63446 EGR cooler kit. Buy AP63445 if you are replacing both, or this kit alone for the oil cooler.
Will the AP63451 fit my engine?
Alliant lists it for the 6.0L and 4.5L Power Stroke and the VT365, VT275 and MaxxForce 5 in the years on this page. Call 530-668-0818 with your VIN and we will confirm it.
Related Parts
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. Call us with your engine serial, VIN or build date before you order and we will help you confirm fitment, so the right part arrives the first time.
UPS to all 50 states, including Alaska and Hawaii. Your rate shows at checkout. Questions on fitment? Call 530-668-0818.
Pricing covers the unit itself. Any applicable sales tax is 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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