12646438 Cadillac Engine Module ECM — 2010–2012 CTS
2008–2013 Cadillac CTS · OEM # 12646438 · Used · OEM




Fits these vehicles
- 2010–2012 Cadillac CTS — 3.0L, Coupe, Luxury, Performance, Premium, V · 3.0L / 3.6L / 6.2L
Compatibility from our listing. Check your VIN or part number before ordering — we’re happy to confirm.
Details
- OEM part number
- 12646438
- Condition
- Used · OEM — Used, in good working condition.
- Make / model
- Cadillac / CTS · 2008–2013
- Category
- Electrical & modules
- Weight
- 7 lb
- Item #
- 116899957682
Description
2010–2012 Cadillac CTS engine module ECM, OEM part number 12646438.
Original part. Used, in good working condition. You will get ecm, exactly as shown in the photos.
Please match the number on your original part (12646438) before ordering.
What this part is
The engine computer (ECU / ECM) controls fuel injection, ignition timing and idle based on the engine sensors. Units are matched to the engine and, on many cars, to the key and immobilizer, so a replacement may need programming; match the part number before ordering.
Questions about this part
- Does this electrical & modules fit my 2008–2013 Cadillac CTS?
- Per our listing, it fits: 2010–2012 Cadillac CTS. Match the OEM number 12646438 against your original part to be sure.
- Is this part new or used?
- It is a used original (OEM) part pulled from a real vehicle. Condition: Used, in good working condition.
- How much is shipping and how fast does it ship?
- Calculated by ZIP code — enter yours below or at checkout. Ships from Dallas–Fort Worth, Texas within 1–3 business days.
- What is the price, and can I make an offer?
- $148.95. Yes — use “Make an offer” to name your price; we reply by email.
- What if the part doesn’t fit or arrives damaged?
- Returns are accepted within 30 days, return shipping is on us, and there is no restocking fee. See the returns policy for details.
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