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OE Quality
60-Day Returns
AP ExhaustPart #: 645112
AP Exhaust 645112 Catalytic Converter
28 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$808.99Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Direct Fit Converter
Fitment: Chevrolet and GMC, Sierra 1500, Silverado 1500, Tahoe, Yukon, and Yukon XL
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? See all Catalytic Converter options
AP Exhaust 645112 Catalytic Converter
| Brand | AP Exhaust |
|---|---|
| Part Number | 645112 |
| Position | Direct Fit Converter |
| Converter Type | Federal / epa direct-fit |
| Inlet Quantity | 2 |
| Body Material | Stainless steel |
| Outlet Quantity | 1 |
| California Air Resources Board (CARB) Certified | No |
| Substrate Material | Ceramic |
| Boxed | Yes |
| Inlet A Connection Type | Loose flange |
| Inlet B Connection Type | Welded flange |
| Inlet Gasket | 2 |
| Inlet Hardware | No |
| Inlet Type A | 3 bolt loose flange |
| Inlet Type B | 3 bolt welded flange |
| O2 Sensor Ports | 4 |
| Outlet A Connection Type | Ball |
| Outlet Gasket | No |
| Outlet Hardware | No |
| Outlet Type A | Norma ball |
| Package Material | Corrugated cardboard |
| Package Type | Box |
This part fits 28 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2020 | Chevrolet | Tahoe | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2020 | GMC | Yukon | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2020 | GMC | Yukon XL | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2019 | Chevrolet | Tahoe | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2019 | GMC | Yukon | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2019 | GMC | Yukon XL | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2018 | Chevrolet | Silverado 1500 | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2018 | Chevrolet | Tahoe | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2018 | GMC | Sierra 1500 | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2018 | GMC | Yukon | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2018 | GMC | Yukon XL | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2017 | Chevrolet | Silverado 1500 | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2017 | Chevrolet | Tahoe | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2017 | GMC | Sierra 1500 | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2017 | GMC | Yukon | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2017 | GMC | Yukon XL | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2016 | Chevrolet | Silverado 1500 | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2016 | Chevrolet | Tahoe | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2016 | GMC | Sierra 1500 | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2016 | GMC | Yukon | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2016 | GMC | Yukon XL | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2015 | Chevrolet | Silverado 1500 | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2015 | Chevrolet | Tahoe | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2015 | GMC | Sierra 1500 | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2015 | GMC | Yukon | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2015 | GMC | Yukon XL | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2014 | Chevrolet | Silverado 1500 | 4.3L | V6 | N/A | Federal and California Emissions; Direct Fit Converter |
| 2014 | GMC | Sierra 1500 | 5.3L | V8 | N/A | Federal and California Emissions; Direct Fit Converter |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.