Description
2013-2014 Cadillac ATS, CTS LFX 3.6L – Professional Overview
The 2013-2014 Cadillac ATS, CTS LFX 3.6L Remanufactured Engine is a replacement power unit based on the Cadillac LFX 3.6-liter V6 platform.
The supplied product information identifies the application as 2013-2014 Cadillac ATS and CTS models and specifies the LFX engine configuration. The engine is remanufactured rather than sold as a used assembly, undergoing a structured rebuilding process before completion.
For buyers replacing an existing engine, accurate identification is essential. The listed cylinder-head casting numbers provide additional reference points when checking the engine against the original application.
Compatibility, Applications, and Technical Context
This LFX 3.6L V6 replacement engine is listed for 2013-2014 Cadillac ATS and CTS applications.
The supplied casting information identifies the left cylinder head as #12633958 and the right cylinder head as #12633959. These identifiers can be useful when verifying the correct replacement engine.
Engine compatibility should be confirmed using the vehicle fitment information and applicable casting numbers before purchase. Matching the engine designation and casting references helps reduce the possibility of selecting an engine intended for a different configuration.
The product is particularly relevant to Cadillac owners, automotive repair facilities, professional installers, and businesses sourcing a Cadillac LFX replacement engine.
Remanufacturing Process and Quality Control
Every engine undergoes a comprehensive remanufacturing process beginning with complete disassembly and deep cleaning. Cast iron components are hot tanked, while aluminum components are thermally cleaned as appropriate.
After cleaning, components undergo detailed inspection. Magnaflux testing uses magnetic particles to identify microscopic cracks and fissures that could contribute to long-term failure. Components are also visually inspected.
During rebuilding, deck surfaces are CNC machined, and new components are installed. The supplied process includes new bearings, pistons, rings, lifters, oil pump, gaskets, Viton valve seals, freeze plugs, and galley plugs.
Depending on the engine configuration, the rebuilding process also includes either a new timing chain with new tensioners or a new timing belt with a new tensioner. If the engine uses a timing-driven water pump, a new pump is installed.
Performance, Testing, and Reliability
The remanufacturing process is designed to address the condition of the engine’s major internal components before the completed assembly is returned to service.
Following reassembly, each engine undergoes SIM testing. During this process, the cooling and oil systems are fully pressurized and the crankshaft is spun at high RPM to verify compression and assess the quality of the completed engine build.
This combination of component inspection, machining, new replacement parts, and post-assembly testing provides buyers with important information about how the Cadillac LFX engine is prepared before installation.
Who This Engine Is Best For
This Cadillac 3.6L LFX replacement engine is intended for buyers requiring a remanufactured engine for a compatible application.
It is suitable for:
- Cadillac ATS owners replacing an existing engine
- Cadillac CTS owners requiring an LFX replacement
- Automotive repair shops
- Professional engine installers
- Engine replacement specialists
- Businesses sourcing remanufactured Cadillac engines
The correct application should always be confirmed before ordering using the vehicle fitment information and relevant casting numbers.
Technical Specifications
| Specification | Details |
|---|---|
| Product | 2013-2014 Cadillac ATS, CTS LFX 3.6L Remanufactured Engine |
| Vehicle Brand | Cadillac |
| Compatible Vehicles | ATS, CTS |
| Compatible Years | 2013-2014 |
| Engine Code | LFX |
| Engine Type | 3.6L V6 |
| Left Head Cast Number | 12633958 |
| Right Head Cast Number | 12633959 |
| Condition | Remanufactured |
| Cleaning Process | Hot tanking or thermal cleaning |
| Inspection | Magnaflux and visual inspection |
| Machining | CNC deck machining |
| New Components | Bearings, pistons, rings, lifters, oil pump, gaskets, Viton valve seals, freeze plugs and galley plugs |
| Timing Components | New timing chain/tensioners or timing belt/tensioner, as applicable |
| Water Pump | New pump where applicable to timing-driven configuration |
| Final Testing | SIM tested |
| Warranty | Up to 7 years / 1 million miles, subject to applicable warranty terms |
Ordering, Availability, and Support
Before ordering the 2013-2014 Cadillac LFX 3.6L engine, compare your existing engine and vehicle information against the listed application. The supplied product information identifies the ATS and CTS for model years 2013-2014 and provides specific cylinder-head casting numbers for additional verification.
The LFX engine designation and casting references should be used together with the vehicle fitment information when confirming compatibility.
The supplied remanufacturing process includes extensive inspection, machining, component replacement, and SIM testing. Warranty coverage is listed as up to 7 years and 1 million miles, with optional Pure Care no-fault protection subject to the applicable warranty program and terms.
Frequently Asked Questions
What engine is used in the 2013-2014 Cadillac ATS and CTS listed here?
This product is identified as a 3.6L LFX V6 engine for compatible 2013-2014 Cadillac ATS and CTS applications. The supplied product information also lists left and right cylinder-head casting numbers for additional engine identification.
Is this Cadillac LFX engine remanufactured?
Yes. The engine undergoes complete disassembly, deep cleaning, inspection, machining, replacement of specified components, reassembly, and SIM testing. It is supplied as a remanufactured engine rather than a used engine.
What are the cylinder-head casting numbers?
The supplied information identifies the left head cast number as 12633958 and the right head cast number as 12633959. These numbers can be used as additional references when verifying the intended engine application.
How is the Cadillac LFX engine inspected?
The engine components undergo visual inspection and Magnaflux testing. Magnaflux inspection uses magnetic particles to identify microscopic cracks and fissures that could affect long-term engine performance.
What new components are installed during remanufacturing?
The rebuilding process includes new bearings, pistons, rings, lifters, oil pump, gaskets, Viton valve seals, freeze plugs, and galley plugs. Timing components and a timing-driven water pump are replaced where applicable to the engine configuration.
How is the remanufactured engine tested?
After reassembly, the engine undergoes SIM testing. The cooling and oil systems are fully pressurized, and the crankshaft is spun at high RPM to verify compression and evaluate the completed engine build.
How do I verify fitment before ordering?
Confirm that your vehicle is a compatible 2013-2014 Cadillac ATS or CTS and compare the existing engine information with the listed LFX designation and cylinder-head casting numbers. The vehicle fitment information should also be reviewed before purchase.
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