PACCAR Q629714 Q629514 Q629354 DOC Inlet Module Replacement

Restore emission system performance with this premium Skyline aftermarket PACCAR Q629714 Diesel Oxidation Catalyst (DOC) Filter Inlet Module Replacement. This brand-new unit serves as a direct alternative to OEM numbers Q629714, Q629514, and Q629354. Engineered as an exact-fit replacement for medium-duty trucks powered by PACCAR PX-6 6.7L and limited PACCAR PX-8 engines, it requires no exhaust system modifications for installation, carries zero core charge, and ships free within the continental United States.

PACCAR Q629714 Cross Reference

How to Verify Your Unit: This direct-fit catalyst replaces components stamped with housing, casting, or manufacturing tags matching any of the interchangeable assembly numbers or supplier cross-references listed below:

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 DOC, (1) 2866636 inlet gasket, (1) 2871451 primary gasket, (1) 2871861 clamp, and (1) 2880482 clamp.
• DOC Only: Includes the replacement DOC only. Gaskets and clamps are not included.

Key Features & Specifications

• Proudly Built in the USA: Designed, engineered, and manufactured in America.
• No Core Charge: Brand-new aftermarket component; eliminates the hassle and downtime of shipping a dirty core back.
• Exact-Fit™ Technical Dimensions: Engineered with OEM-matching inlet/outlet diameters, pre-machined sensor ports, and factory-spec hanger alignments for direct exhaust installation with zero modifications required.
• Substrate Performance Matrix: Advanced flow-through core utilizes optimized precious metal washcoat loading to maintain optimal exhaust temperatures and long-term emission control.
• Industry-Leading Warranty: Backed by a 3-year unlimited mileage warranty on all Skyline aftermarket solutions.
• EPA Compliant: Meets all federal emissions standards for diesel oxidation catalyst replacement requirements.
• Free Shipping: Free ground shipping within the continental United States. Orders placed before 2:00 PM Eastern ship out the same business day.

Vehicle & Engine Application Guide

Fits approximately 2010 to 2012 commercial vehicles equipped with EPA10 PACCAR diesel powertrains. Optimized for:

• Engine Platforms: PACCAR PX-6 6.7L / limited PACCAR PX-8 applications
• Chassis Fitments: This module fits select medium-duty conventional trucks, bus configurations, and commercial vocational platforms. Compatible chassis include:
  • Kenworth: T170 and T370 medium-duty models configured with the PX-6 6.7L.
  • Peterbilt: Models 337 and 348 medium-duty conventional and vocational setups.

Compatible OEM Assembly Numbers: 2866404, 2866452, 2866474, 2866589, 2866591, 2871491, 2880176, 2880203, 2880334, 2880336, 2880397, 2880401, 2880452, 2880463, 2888150, A029M750

Signs Your Paccar DOC Needs Replacement

• Frequent, unprompted, or incomplete DPF regeneration cycles
• Excessive particulate soot loading or exhaust face-plugging at the inlet module catalyst face
• Active dashboard diagnostic trouble codes (DTCs) signaling low catalyst efficiency levels
• Unexplained commercial engine backpressure increases or gradual exhaust system power loss

*Note: Always verify exact compatibility using your vehicle's VIN number or original stamped OEM part number on the unit before placing an order.

Disclaimer: Product images are for reference only. Final components such as the DOC, gaskets, clamps, and sensor locations depend on the selected configuration. Price is for one (1) physical DOC Inlet Module only. Selecting the "Full Kit" option adds the explicitly listed installation gaskets and clamps to your shipment.