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Walker 16581 Catalytic Converter Assembly
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| Part Name | Front Catalytic Converter |
|---|---|
| Configuration | Direct Fit |
| Emission Standard | EPA Federal |
| Body Material | Stainless Steel |
| Tubing Material | Aluminized Steel |
| Outlet Diameter | 2.74 in |
| Mounting Style | Single Bolt Bracket with Locating Tab |
| Heat Shield | Integrated |
| Status | Not Legal for CA, CO, NY |
| Position | Front |
| Net Weight | 12.5 kg |
| Package Dimensions | 60 × 30 × 20 cm |
Manufacturer No.
- 16581
OEM Part No.
- 16581
- 16796
- 644015
- 59521
- 50507
- 0795267
- 324546
- 23128664
- 20910567
- 642042
- 52600
- 50508
- 52186
- 25970320
- 59582
- 20871342
- 22794837
- 22741673
- 25970315
Engine Part No.
- GM 2.4L L4 LEA
- GM 2.4L L4 LUK
Interchange No.
- 644015
- 59521
- 50507
- 0795267
- 324546
- 642042
- 52600
- 50508
- 52186
- 25970320
- 59582
- 20871342
- 22794837
- 22741673
- 25970315
Fitment Vehicles
- GMC Terrain 2010-2014
- Chevrolet Equinox 2010-2014
- Chevrolet Captiva Sport 2012-2015
Technical specifications for Walker Exhaust Ultra EPA direct-fit catalytic converter part number 16581. Designed as OEM replacement for front exhaust position on GM Theta platform vehicles equipped with 2.4L L4 engines. Features stainless steel converter body, aluminized steel inlet/outlet pipes, and factory-style mounting brackets with single-bolt support bracket and locating tab. Federal EPA compliant, not legal for California, Colorado, or New York registration. Direct bolt-on installation without welding or fabrication required.
Cross-reference interchange includes OE numbers 16581, 16796, 644015, 59521, 50507, 0795267, 324546, 23128664, 20910567, 642042, 52600, 50508, 52186, 25970320, 59582, 20871342, 22794837, 22741673, 25970315. Compatible with Walker Ultra EPA series and Davico direct-fit equivalents.
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