AP Exhaust 644140 Catalytic Converter - Rear

Brand	AP Exhaust 644140
Position	Rear
Inlet Gasket Qty	1
Inlet Type A	2 bolt welded flange
O2 Sensor Ports	1
Outlet Gasket Qty	1
Outlet Type A	2 bolt welded flange
Overall Length (IN)	24
Substrate Material	Ceramic
Type	Federal / epa direct-fit
Product line	Direct Fit Converter
Fits	Chevrolet and Nissan · 13 vehicles

Direct-fit converter. Built to exact OE dimensions for straightforward installation.

Ceramic substrate. Helps deliver efficient converter performance with lower-cost loading.

Federal / EPA compliant. Meets emissions requirements for approved replacement use.

Cross-references 200203LM0A for the same application. See all 1.

$230.87Free shipping

In stock · usually ships same day before 1pm CST

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AP Exhaust Direct Fit Converter 644140

AP Exhaust Direct Fit Converter 644140 is a Federal / EPA direct-fit catalytic converter built for exact OE dimensions and fitment. It uses a ceramic substrate and a 2-bolt welded flange inlet and outlet layout to support a clean, direct replacement on select Nissan NV200 and Chevrolet City Express rear applications.

Direct-Fit Converter Features

Federal / EPA direct-fit catalytic converter for rear exhaust placement
Ceramic substrate material for emissions conversion performance
2-bolt welded flange inlet and outlet for OE-style connection points
One O2 sensor port for the specified application
24-inch overall length for the listed fitment
Built to exact OE dimensions using AP Exhaust Direct Fit Converter manufacturing processes

Product Details

The AP Exhaust Direct Fit Converter line is engineered for OE-style replacement work where correct dimensions, flange style, and sensor-port placement matter. Part number 644140 is designed around the listed rear exhaust applications and uses AP Exhaust’s manufacturing approach to maintain consistent fitment and converter efficiency. This part cross-references 200203LM0A for the same application.

Compatible With 2021 Nissan NV200 rear, 2013-2020 Nissan NV200 rear, and 2015-2018 Chevrolet City Express rear. AP Exhaust 644140 is a practical choice when replacing a worn or restricted converter on these vehicles and when maintaining the original exhaust layout is important.

Common Replacement Reasons

Check engine light related to catalytic converter efficiency
Restricted exhaust flow from a deteriorated converter
Failed emissions inspection tied to converter performance
Exhaust noise or odor caused by internal converter damage
Need for an OE-style rear converter replacement on Nissan NV200 or Chevrolet City Express

Installation Notes

Verify the rear position, flange style, O2 sensor port location, and emissions designation before installation. This converter is listed for Federal and California emissions configurations on the specified vehicles, with state-use restrictions noted for certain applications. Confirm the vehicle’s emissions requirements and local regulations before ordering or installing AP Exhaust 644140.

Quality Assurance

AP Exhaust uses proprietary substrate chemistry and advanced manufacturing methods, including automated workstations, spinner welding equipment, and high-speed production lines, to build converters to OE dimensions and fitment standards. That process supports consistent production quality and competitive replacement value for the listed applications.

This part fits 13 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Liters	Cylinders	Position	Notes
2021	Nissan	NV200	2.0L	L4	Rear	Federal and California Emissions; Direct Fit Converter
2020	Nissan	NV200	2.0L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2019	Nissan	NV200	2.0L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2018	Chevrolet	City Express	2.0L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2018	Nissan	NV200	2.0L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2017	Chevrolet	City Express	2.0L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2017	Nissan	NV200	2.0L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2016	Chevrolet	City Express	2.0L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2016	Nissan	NV200	2.0L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2015	Chevrolet	City Express	2.0L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2015	Nissan	NV200	2.0L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2014	Nissan	NV200	2.0L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
2013	Nissan	NV200	2.0L	L4	Rear	Direct Fit; Federal and California Emissions. Not For Sale or Use on vehicles licensed in the state of CA, CO, ME & NY. Restrictions may apply in other states. Check with your state authority for details.
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Directly replaces or cross-references 1 part number

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

200203LM0A