Make sure this part fits

Cadillac 12660271 Converter

2013-2015 Cadillac

Customer Questions & Expert Answers (2)
12660271 GM Converter Illustration 1 of 1
  • Part Description
    Converter, Catalytic Converter
  • Replaces
    12656410, 12653069
  • Manufacturer
    General Motors
Make sure this part fits
$1714.63 MSRP: $2555.00
You Save: $840.37 (33%)
Core Charge: $400.00
Ships in 1-3 Business Days
1
ADD TO CART
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Cadillac
    Manufacturer Part Number12660271
    Part DescriptionConverter; Converter, Catalytic Converter
    Item Dimensions24.9 x 7.9 x 6.4 inches
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12656410, 12653069
    ManufacturerGeneral Motors
    SKU12660271
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2013-2015 Cadillac ATS4 Cyl 2.0L2 DOOR COUPE, 2 DOOR LUXURY COUPE, 3 DOOR PREMIUM COUPE, 4 DOOR LUXURY SEDAN, 4 DOOR PERFORMANCE SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN
    2014-2015 Cadillac CTS4 Cyl 2.0L4 DOOR PERFORMANCE SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN
  • Customer Questions & Expert Answers

    Q:
    I'm wondering if this is complete and correct part for my vehicle.
    A:
    You can Select Your Vehicle to check if 12660271 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What is the first step in the process for replacing the Catalytic Converter in the 2014 Cadillac CTS? Posted by Titi G.
    A:
    Raise the front of the vehicle and support it securely on jackstands, then remove the engine under-cover. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Bob / Oct 31, 2025

Genuine GM Part 12660271, the Right Choice

To ensure reliability, purchase GM part # 12660271 Converter. It is sometimes referred to as Cadillac Catalytic Converter. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Cadillac ATS, CTS models.

GMPartsGiant.com is a leading supplier of genuine GM parts and accessories such as GM 12660271 Converter. You're certainly in the right place if you're searching for the great cost-effective OEM GM parts. Look no further than our vast inventory of genuine GM parts offered at unbeatable online prices, all of which are backed by the manufacturer's warranty. Not to forget, our hassle-free return policy and quick delivery service ensure a smooth shopping experience for you. For detailed Cadillac parts information, click here.
Find low prices on genuine OE parts from GM dealerships with fast delivery and dedicated service at GMPartsGiant.com.