/live/media/WK/WK_55727_Fro.jpg)
OE Quality
60-Day Returns
Walker
EPAWalker 55727 Catalytic Converter - Rear
| Brand | Walker 55727 |
|---|---|
| Position | Rear |
| Body Shape | Round |
| Body Height | 4.0 |
| Body Length | 8.0 |
| Body Width | 4.0 |
| Outlet Quantity | 1 |
| Overall Length | 55.38 |
| Body Material | Steel |
| Inlet 1 Type | Welded flange |
| Inlet 2 Type | Welded flange |
| Inlet Quantity | 2 |
| Outlet 1 Type | Welded flange |
| Outlet 2 Type | Welded flange |
| Product line | EPA |
| Fits | Buick · 4 vehicles |
Cross-references AP Exhaust 643138 and 644103 for the same application. See all 2.
$540.17Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Catalytic Converter options
Walker 55727 Catalytic Converter - Rear
This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2012 | Buick | LaCrosse | FWD | 3.6L | V6 | Rear | Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31311 and 2 of 31337; Ultra Direct Fit Type; EPA |
| 2011 | Buick | LaCrosse | FWD | 3.6L | V6 | Rear | Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31311 and 2 of 31337; Ultra Direct Fit Type; EPA |
| 2010 | Buick | LaCrosse | FWD | 3.6L | V6 | Rear | Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31311 and 2 of 31337; Ultra Direct Fit Type; EPA |
| 2010 | Buick | LaCrosse | FWD | 3.0L | V6 | Rear | Fits Fed. & Calif. Emission Models; Not legal for sale or use in California and other CARB-compliant states. Legal in New York and Maine on EPA Federal Emission Equipped Vehicles only. Consult the aftermarket converter regulations in your state for details.; Exhaust Gasket is Recommended; Additional part(s) needed to complete installation - 31311 and 2 of 31337; Ultra Direct Fit Type; EPA |
| No rows match your filter. | |||||||
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 643138644103