Restore commercial fleet emissions performance with this premium Skyline aftermarket Detroit Diesel A6804901514 DOC Inlet Module Replacement Kit. This brand-new flow-through Diesel Oxidation Catalyst (DOC) functions as an absolute match for factory-stamped number A6804901514. Engineered as a genuine OE manufactured component replacement for heavy-duty emissions modules running Detroit Diesel DD15 and Series 60 engine platforms, it requires no exhaust system modifications for installation, carries zero core charge, and ships free within the continental United States.
✓ Free Shipping
✓ Hardware Included
✓ EPA Compliant
Cross-References for Detroit Diesel A6804901514
Instant Fitment Verification: This direct-fit replacement diesel oxidation catalyst replaces components stamped with housing part numbers, casting codes, master assembly codes, or tag profiles matching any of the interchangeable manufacturing references listed below:
Manufacturer
Cross Reference Part Numbers
Detroit Diesel OEM Cross References
A6804901514, EA6804901514, RA6804901514
Skyline
DNT509
FSS Emission Products
DNT509-FSS
Included Installation Hardware
To ensure a leak-free installation at the shop, this emissions unit ships completely compiled with all necessary replacement service hardware included inside the box. Each package bundle features high-temperature installation gaskets (1) A4709970045 and (1) A4709971245, alongside heavy-duty clamps (1) A4709950002 and (1) A0019959702 cleanly packed inside the container configuration framework.
TECHNICAL SPECIFICATIONS
Measurement Parameter
Specification Value
Material Base Construction
Premium Grade Stainless Steel
Exhaust Emissions Norm
EPA Compliant
Key Features
Proudly Built in the USA: Designed, engineered, and manufactured in America.
EPA Compliant: Meets federal emissions standards for applicable emission controls and legislation requirements nationwide.
No Core Charge: Brand-new unit; completely eliminates dirty core return tracking and balance hassles.
Exact-Fit™ Technical Dimensions: Built with matching inlet/outlet outer diameters, pre-machined sensor ports, and specialized body hanger brackets for zero exhaust system modifications.
Substrate Performance Matrix: Advanced flow-through catalyst core uses verified washcoat metal loading to sustain exhaust temperature control and lower backpressure limits.
Fast Free Shipping: Free ground freight within the continental United States. Orders confirmed before 2:00 PM Eastern ship out the same business day.
Warranty Protection: Supported by an extensive 3-year unlimited mileage replacement coverage matrix.
Engine Compatibility & Fitment Guide
Direct alternative replacement solution for supported model year heavy duty configurations running horizontal chassis architectures. Optimized for:
Engine Platforms: Highly optimized for Detroit Diesel DD15 and Series 60 powertrain platforms matching approximate model years 2007 to 2009.
Chassis Fitments: Extensively deployed across heavy-duty Freightliner Cascadia, Century Class, Columbia, and Western Star commercial fleet chassis profiles matching engine specifications.
Frequently Asked Questions
Is there a core charge for this aftermarket emissions unit?
No, this is a 100% brand-new aftermarket component. Unlike remanufactured factory units, there is absolutely zero core charge, zero tracking paperwork required, and no need to spend money shipping your old, dirty unit back to us.
Does this replacement unit come with the necessary clamps and gaskets?
Yes. All required installation hardware items are automatically bundled inside the shipping box at no extra cost. Each unit arrives complete with (1) A4709970045 gasket, (1) A4709971245 gasket, (1) A4709950002 clamp, and (1) A0019959702 heavy-duty exhaust alignment clamp so you can complete the replacement swap instantly with no extra store runs required.
Will this unit clear active dashboard emissions fault codes?
Yes, assuming downstream diesel particulate filters and exhaust sensors are operating within specification. Replacing a degraded catalyst restores legal conversion thresholds, allowing the vehicle control module to clear active DOC efficiency faults.
How fast will my order ship out?
Orders confirmed before 2:00 PM Eastern standard time ship out from our closest regional fulfillment hub on the exact same business day. Free standard ground shipping is included to the continental United States, and expedited overnight air choices can be selected directly at checkout.
How do I verify this aftermarket filter matches my truck's setup?
You can verify fitment by identifying the original casting housing stamp, factory identification tag, or specific manufacturing tag references directly on your factory core shell. If your unit tracks to standard cross A6804901514 or matching partner codes, it will bolt directly in with a perfect factory alignment.
SIGNS YOUR DIESEL OXIDATION CATALYST (DOC) NEEDS REPLACEMENT
Frequent, unprompted, or incomplete DPF regeneration cycles linked directly to upstream catalyst efficiency degradation matching part number A6804901514
Excessive particulate soot face-plugging or heavy face mask scaling across the internal catalyst face assembly
Active dashboard diagnostic trouble codes (DTCs) pointing directly to poor catalyst conversion efficiencies or thermal response delays
Unexplained commercial engine backpressure spikes or noticeable horsepower deterioration under loaded transport pulls
*Note: Always verify exact vehicle compatibility using your vehicle's VIN number, emissions family descriptor tag, or the original stamped OEM part number on your catalyst module casing before placing an order.
California Shipping Notice: This product is EPA compliant but is NOT for sale in California and cannot be shipped to a California address.
Disclaimer: Product images are for reference only. Applicable installation hardware items matching OEM parameters (such as gaskets and alignment clamps) are automatically bundled and included in your shipment package. Price is for (1) pre-packaged DOC filter assembly. Inventory levels are subject to local availability updates.
Warranty Information
Skyline Emissions, Inc., offers a 3-year, unlimited mileage warranty on all their DPFs and DOCs.