Product Overview
AFTERMARKET REPLACEMENT FOR DETROIT DIESEL A6804901614 DOC FILTER
Interchangeable Component Configurations: A6804901614
OEM CROSS REFERENCE INTERCHANGE MATRIX
Instant Fitment Verification: This direct-fit catalyst replaces components stamped with housing numbers, casting codes, or tag profiles matching any of the interchangeable manufacturing references listed below:
| Manufacturer | Cross Reference Part Numbers |
|---|---|
| Detroit Diesel / Mercedes-Benz (OEM) | A6804901614, EA6804901614, RA6804901614 |
| Skyline Aftermarket | DNT503 |
| Dura-Fit Alternative | C20-0064 |
| Roadwarrior Alternative | C0123-ID |
Restore commercial fleet emissions performance with this premium Skyline aftermarket Detroit Diesel A6804901614 / DNT503 DOC Inlet Module Replacement Kit. This brand-new flow-through catalyst module functions as an absolute match for factory-stamped numbers A6804901614. Engineered for an exact fit out of the box with zero exhaust system modifications required, it installs cleanly into the factory setup, carries zero core charge, and ships out in a plain white box with free standard ground shipping within the continental United States.
CHOOSE YOUR KIT CONFIGURATION
Select the setup from the product options above that best fits your shop's needs:
- Full Kit (Best Value): Includes (1) Brand-New Component, (2) heavy-duty installation gaskets (A4709970045, A4709971245), and (2) heavy-duty exhaust clamps (A4709950002, A0019959702) linked cleanly via internal absolute paths.
- Component Only: Includes core unit only. Hardware items excluded.
KEY FEATURES & SPECIFICATIONS FOR PART A6804901614 / DNT503
- No Core Charge: Brand-new aftermarket component completely eliminates dirty core tracking and return hassles.
- High-Grade Casing Construction: Manufactured with a premium stainless steel shell to maximize thermal durability and prevent oxidation under heavy fleet use.
- Substrate Performance Matrix: Premium flow-through catalytic design maximizes exhaust gas oxidation efficiency while minimizing backpressure limits.
- Industry-Leading Warranty: Backed by a comprehensive 3-year unlimited mileage warranty against structural and manufacturing defects.
- EPA Compliant: Meets federal EPA07 emission standards for legal installation nationwide.
- Fast Free Shipping: Free standard ground freight within the continental United States. Overnight and expedited shipping options are available at checkout. Orders confirmed before 2:00 PM Eastern ship out the same business day.
VEHICLE FITMENT GUIDE
Direct alternative solution for supported model year commercial configurations running horizontal chassis architectures:
- Engine Platforms: Specially optimized for heavy-duty 2007-2009 Detroit Diesel and Mercedes-Benz Series 60, MBE 4000, DD13, and DD15 engine configurations.
- Chassis Fitments: Extensively deployed across medium-to-heavy regional transport setups, vocational frameworks, dump trucks, delivery trucks, day cabs, and bus fleet applications matching engine specifications.
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 A6804901614
- 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, raw fuel smell in the exhaust, noticeable horsepower deterioration under loaded transport pulls, or upstream soot loading.
*Note: Always verify exact vehicle compatibility using your vehicle's VIN number, emissions family descriptor tag, or the original stamped part number on your filter unit casing before placing an order.
FREQUENTLY ASKED QUESTIONS
Does this replacement DOC require a core return?
No. This is a brand-new aftermarket unit. There are no core charges, core tracking hassles, or return freight expenses required.
What is included in the Full Kit option?
The Full Kit includes the primary DNT503 diesel oxidation catalyst core along with the necessary service components: two distinct gaskets (A4709970045, A4709971245) and two precision-matched heavy-duty exhaust clamps (A4709950002, A0019959702) required for a complete install.
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.
Disclaimer: Product images for reference only. Hardware depends on configuration. Price is for (1) unit. Inventory levels are subject to local availability updates. Selecting the "Full Kit" option adds the explicitly listed installation components to your shipment.
