Note: This article contains affiliate links. If you click on these links and make a purchase, I may earn a small commission at no extra cost to you. This helps support my research and content. Read my full affiliate disclosure here.
Picking the right Cadillac CTS transmission pan matters because it affects how cleanly and easily you can service the transmission. A well-chosen pan reduces mess during fluid changes, improves access to the filter and drain, and helps maintain proper fluid containment under normal driving.This guide covers our shortlisted top picks for Cadillac CTS transmission pans and explains the evaluation criteria we used, including fitment, material quality, and drain design. Read on to see which features matter most and what to look for when replacing the pan on your CTS before the product list.
Looking for other parts? See all Cadillac CTS parts & accessories.
Top Picks at a Glance
| Best overall The best all-around choice for most situations | uxcell Transmission Oil Filter Pan for Cadillac ATS/CTS |  |
| Best Quality Built to a higher standard if you want something more solid | GM Genuine Parts 24297102 Transmission Oil Pan |  |
| Best Value The sweet spot between price and what you get | Dorman 265-811 Transmission Oil Pan with Drain Plug, Filter and Gasket |  |
| Best Budget The cheapest option that still gets the job done reliably | A-Premium Transmission Oil Pan with Drain Plug for Cadillac CTS/ATS/CT4/CT6 (8-Speed) |  |
| Best Seller A high-volume bestseller chosen again and again | Dorman 265-582 Transmission Oil Pan with Drain Plug (OE Fix) |  |
1. uxcell Transmission Oil Filter Pan for Cadillac ATS/CTS
| Fitment | Cadillac ATS 2013-2015; Cadillac CTS 2014-2016 |
|---|---|
| Condition | New |
| Material | Plastic |
| Position | Inner |
This uxcell transmission oil filter pan is a replacement transmission filter assembly intended to remove debris from transmission fluid and help protect internal valve body components. It installs by dropping the pan, removing the old filter, fitting the new unit, and re-sealing with a gasket. The part is molded plastic and marketed as a direct replacement for the factory unit, with fitment listed for Cadillac ATS (2013–2015) and Cadillac CTS (2014–2016). In use it keeps transmission fluid cleaner to reduce clogging and wear, which can improve shift quality and longevity when changed at recommended intervals. The design emphasizes straightforward installation and stable performance, but it is a non-factory aftermarket part so finish and long-term durability may differ from a factory-quality component. Buyers should verify bolt hole alignment and washer count before ordering and plan to replace transmission fluid and gasket during service.
Best for: Balanced buyers who want an affordable, ready-to-install replacement to maintain shift quality and extend transmission life on Cadillac CTS and ATS models without seeking dealer parts.
Less Ideal for: Those who prefer factory-sourced parts for long-term durability or who plan heavy-duty use should consider OEM or higher-end aftermarket options.
- Designed as a direct replacement for the factory transmission filter pan for specified Cadillac models
- Filters transmission fluid to reduce contaminants and help prevent valve body clogs
- Simple drop-in installation that follows standard pan/filter replacement procedure
- Aftermarket plastic construction may not match factory part longevity under heavy use
- Requires verification of washer hole count and fit before installation
Verdict: A practical, install-friendly aftermarket replacement that keeps transmission fluid cleaner for Cadillac ATS and CTS models but may not match factory part longevity.
2. GM Genuine Parts 24297102 Transmission Oil Pan
| Manufacturer | GM Genuine Parts |
|---|---|
| Exterior | Machined |
| Manufacturer Part Number | 24297102 |
| Model | GM Original Equipment |
This GM Genuine Parts transmission oil pan is a factory-quality replacement designed for direct fit and service on compatible GM vehicles such as the Cadillac CTS when using the specified 6L80e family transmissions. It serves as the reservoir for transmission fluid and mounts in place of the original pan during routine service or after damage. The machined exterior and factory validation mean gasket surfaces and bolt locations match factory tolerances, which simplifies installation and reduces the risk of leaks. Because it is a genuine GM part, material selection and finish are intended to meet the vehicle maker's standards rather than aftermarket shortcuts. Practical benefits include reliable sealing, correct fitment, and peace of mind when maintaining a performance-oriented automatic transmission. Important limitations are that this is a direct replacement pan only and does not include additional features like internal baffles, magnetic drain plug upgrades, or increased capacity for heavy-duty cooling, so owners seeking enhanced cooling or expanded fluid capacity will need performance-oriented aftermarket pans instead.
Best for: Performance-oriented owners seeking a factory-quality, drop-in transmission pan to maintain correct fitment and reliability on a Cadillac CTS without modifying the transmission.
Less Ideal for: Drivers who want increased fluid capacity, built-in cooling fins, or other performance upgrades should consider purpose-built aftermarket pans instead of this factory replacement.
- Factory-validated fit and finish for GM transmission applications
- Machined exterior and precise bolt/gasket surfaces reduce leak risk
- Backed by GM design and engineering standards for reliable replacement
- Simple direct-replacement installation for routine service
- Does not add capacity, enhanced cooling, or performance features found on aftermarket pans
Verdict: Choose this GM Genuine Parts transmission pan when you want a factory-quality, direct-fit replacement that preserves original fit and sealing for a Cadillac CTS transmission.
3. Dorman 265-811 Transmission Oil Pan with Drain Plug, Filter and Gasket
| Material | Steel |
|---|---|
| Includes | Filter assembly, gasket, integrated magnet |
| Finish | E-coat finish |
| Bolt Pattern (Number of Holes) | 16 |
This Dorman transmission pan is a practical replacement option when a leaking or damaged pan needs attention on compatible vehicles. It functions like a factory pan while adding a threaded drain plug so you can drain transmission fluid before removing the pan, which keeps the work area cleaner and speeds routine service. The pan is steel with an E-coat finish for corrosion resistance and arrives with a filter assembly, gasket and an integrated magnet to capture metal debris. In use it simplifies fluid changes and filter swaps compared with removing a factory pan full of fluid. Fitment notes from users show it installs cleanly in many GM applications but may require minor clearance work or removal of small brackets on some vehicles, so expect occasional drilling or part removal during installation. The pan is heavier than thin aftermarket alternatives, which generally translates to durability, but check fit confirmation for Cadillac CTS models to ensure exact compatibility before purchase.
Best for: Practical optimizers who prioritize getting a durable, serviceable replacement that makes future maintenance easier and saves time and money over repeated shop visits.
Less Ideal for: Buyers seeking a guaranteed bolt‑in, no‑modification fit for a specific Cadillac CTS variant should verify fitment carefully or consider a direct factory replacement from Cadillac if exact OEM form is required.
- Integrated drain plug prevents messy fluid spills and makes future fluid changes faster.
- Includes filter assembly, gasket and magnet for a more complete install without sourcing extra parts.
- E-coat finish on steel pan improves corrosion resistance for longer service life.
- Built to match factory performance with a heavier, robust construction for durability.
- May require minor trimming or removal of nearby brackets for installation on some GM vehicles.
- Does not universally guarantee exact fit without vehicle-specific verification.
Verdict: Adds a convenient drain plug and comes with the filter and gasket needed to simplify transmission service and reduce mess.
4. A-Premium Transmission Oil Pan with Drain Plug for Cadillac CTS/ATS/CT4/CT6 (8-Speed)
| Compatible Vehicles | Cadillac ATS/CTS/CT4/CT6 (specified years, 8-speed) |
|---|---|
| Material Type | Aluminum |
| Drain Plug | Included |
| Fit Type | Vehicle Specific |
This A-Premium transmission oil pan replaces the factory pan on several Cadillac CTS, ATS, CT4 and CT6 vehicles with 8-speed transmissions and is intended as a direct-fit aftermarket replacement. It is cast aluminum with a corrosion-resistant surface and includes a drain plug for easier fluid changes, though the gasket is not included so you will need to source a seal separately during installation. The pan addresses common issues such as leaks and low fluid level while restoring a sealed sump for proper lubrication and cooling of the transmission. Its vehicle-specific fit cuts installation time compared with generic pans, but buyers should expect to use factory fasteners and possibly minor cleanup of the mounting surface for a reliable seal. Backed by a one-year unlimited-mileage guarantee, this pan is a practical budget option for routine repairs or midlife maintenance, offering solid materials and useful features for the price while requiring basic shop work to install correctly.
Best for: Budget-conscious Cadillac owners focused on a cost-effective, factory-replacement repair who prioritize getting a durable, vehicle-specific pan without paying for premium name-brand options.
Less Ideal for: Owners seeking a complete overhaul kit with new hardware and gasket included or those who prefer OEM-brand parts and dealer-level support should consider other options.
- Vehicle-specific fit for Cadillac CTS, ATS, CT4 and CT6 8-speed transmissions simplifies installation
- Cast aluminum construction with a corrosion-resistant finish improves durability over stamped steel pans
- Includes a drain plug to make fluid changes easier and cleaner
- One-year unlimited-mileage guarantee offers basic post-purchase protection
- Gasket is not included so a separate seal must be purchased before installation
- May require surface cleaning and reuse of factory fasteners during installation rather than a full hardware kit
Verdict: A practical, vehicle-specific replacement transmission pan that delivers durable aluminum construction and a built-in drain plug at a budget-friendly price.
5. Dorman 265-582 Transmission Oil Pan with Drain Plug (OE Fix)
| Brand | Dorman |
|---|---|
| Model | 265-582 |
| Manufacturer Part Number | 265-582 |
| OEM Part Number | 24222657; 24224781; 24236933; 29535617 |
This Dorman transmission oil pan replaces the factory pan on compatible GM cars and SUVs while adding a factory-style drain plug so fluid can be drained without dropping the pan. It is intended for routine service and leak repair and is offered with a rubber gasket and mounting holes that match original bolt patterns. Typical use is a direct swap during a transmission service or when repairing a leaking pan; the integrated drain plug makes partial fluid changes and DIY maintenance much cleaner and faster. Dorman says the pan is vehicle-try-on tested and salt-spray analyzed, and customer reports note solid fit and no leaks when torqued to spec. The pan is thicker and appears durable in hands-on installs, but removal and reinstallation can be awkward on some vehicles because of surrounding heat shields and exhaust routing. Also the part requires confirming vehicle trim and year for exact fitment before purchase.
Best for: A risk-averse mainstream buyer who prioritizes reducing service mess and keeping a near-factory repair approach for regular maintenance on Cadillac vehicles.
Less Ideal for: Not the best choice for someone who needs a custom or performance-modified pan or who plans frequent strip-down transmission work where access to internal components is required.
- Integrated drain plug makes drain-and-fill services far cleaner and faster than dropping the pan
- Designed to match factory bolt pattern and include a matching gasket for reliable sealing
- Vehicle try-on testing and salt-spray analysis indicate attention to fit and corrosion resistance
- Reported by users to install without leaks when bolts are torqued to specification
- Removing and reinstalling the pan can be difficult on some vehicles due to tight clearances and nearby heat shields or exhaust
Verdict: Adds a factory-matching drain plug to your transmission pan for cleaner, easier fluid changes on compatible Cadillac models.
Choosing the Right Cadillac CTS Transmission Pan: Key Factors to Consider
Fitment and Bolt Pattern Accuracy
Correct fitment is critical because an improperly fitting pan can lead to leaks, rubbing, or interference with chassis components. Confirming bolt hole alignment, flange flatness, and clearance around the transmission housing ensures the pan installs without forcing or modifying mounting points.
Accurate fitment reduces the risk of uneven gasket compression and helps maintain factory sealing surfaces. It also makes installation faster and less likely to cause damage to threads or studs during tightening.
Material and Corrosion Resistance
Material choice affects long-term durability and resistance to road salt and debris. Steel pans tend to be strong and forgiving, while stamped aluminum or billet options offer lighter weight and often better heat dissipation. A durable coating or anodizing helps prevent surface corrosion.
Consider how the material will hold up in your driving environment. A reliable finish or corrosion-resistant alloy reduces the chance of surface degradation that can complicate future removal or lead to leaks.
Drain Design and Serviceability
A built-in drain or easily accessible drain plug makes fluid changes far cleaner and quicker, minimizing the need to drop the entire pan when servicing. Drain location and thread type should be robust and positioned to clear suspension components.
Also consider whether the pan allows easy access to the transmission filter and magnets. A pan that streamlines routine maintenance saves time and reduces the chance of cross-threading or stripped drain fittings.
Gasket Interface and Sealing
The sealing surface and gasket design determine leak resistance. Some pans use a molded gasket, while others rely on a separate flat gasket and RTV. Look for pans with a consistent mating flange and clearly defined gasket channels to ensure even compression and a reliable seal.
Proper sealing reduces the likelihood of transmission pan leaks and the need for repeat disassembly. Also consider whether the design accommodates torque specifications without warping the flange.
Internal Capacity and Magnet Placement
Changing the pan can alter fluid capacity and the location of magnets that catch metallic debris. A larger capacity pan may hold more fluid and change fill levels, which can affect service procedures. Well-placed magnets or removable magnet plates improve contaminant capture.
Think about whether increased fluid volume suits your maintenance routine and whether magnet placement supports easy cleaning during service intervals.
Installation Accessibility and Clearance
Clearance around the pan for tools, jack stands, and drain fittings affects how easily you can perform installation or service. Pans with low profiles may reduce ground clearance, while deeper pans can make access harder under the vehicle.
Assess how the pan geometry interacts with your vehicle's undercarriage and service equipment. Consider weight for handling during installation and whether additional support or alignment tools are required to position the pan correctly.
How We Chose the Best Cadillac CTS Transmission Pan
Our selection began by focusing strictly on parts designed for the Cadillac CTS to ensure correct fit and function. We filtered for pans manufactured from durable materials with consistent thickness and corrosion resistance, and we prioritized units with integrated drain options or accessible drain fittings to simplify maintenance.Key evaluation criteria included fitment accuracy to factory bolt patterns and clearances, material and finish quality for corrosion protection, presence and design of a drain or magnet, ease of filter access and internal volume changes, and compatibility with OEM or improved gasket sealing solutions. We also considered manufacturing tolerances and the clarity of installation guidance.We excluded pans that required extensive vehicle modification or vague fitment claims. Units lacking clear material specs, absent drain provisions, or with poor finish quality were not considered. The final list represents pans that meet practical serviceability and durability standards for CTS owners.
Our full evaluation process is outlined in our review methodology.
FAQ
How do I know if a Cadillac CTS transmission pan will fit my model year?
Fitment usually depends on the transmission variant and model year. Check the part documentation and bolt pattern against your transmission housing specification. When in doubt, verify the listed fitment range and any notes on revisions or model-year exceptions before purchasing.
Can I replace the transmission pan gasket myself?
Replacing the gasket is a common DIY job if you have basic tools and a safe way to support the vehicle. Drain the fluid or use a pan with a drain, remove the pan bolts in a cross pattern to avoid warping, clean the mating surfaces thoroughly, and follow recommended torque specs during reinstallation. If you are uncertain, seek professional help.
Will a larger transmission pan change my fluid capacity or shift behavior?
A larger pan increases fluid capacity, which can slightly alter fluid temperature dynamics and service fill levels. It does not directly change internal transmission calibration, but you should follow manufacturer guidance on fluid level checks and expect small differences in how quickly fluid heats or cools during operation.
Are drain plugs reliable for preventing leaks?
Drain plugs can be reliable if they use quality threads, a crush washer or proper sealing method, and are torqued correctly. Poorly made plugs or over-torqued fittings increase leak risk. Regular inspection during service intervals helps catch issues early.
How often should I inspect the transmission pan and magnets?
Inspect the pan and magnets whenever you perform a fluid change or at regular service intervals recommended for your vehicle. Look for metal shavings on magnets, contamination signs in the fluid, and any evidence of leakage or corrosion on the pan. Early inspection helps detect wear before it becomes a major problem.
Conclusion
When choosing a Cadillac CTS transmission pan, prioritize correct fitment, durable materials, and a service-friendly drain design. These features reduce installation headaches, lower leak risk, and make routine fluid changes more manageable.Balance capacity and magnet placement against clearance and sealing quality. Focus on pans that match your CTS transmission bolt pattern and offer reliable sealing details to minimize future service and maintenance tradeoffs.
Explore More:
- Check out all Cadillac CTS parts & accessories
- Explore Transmission Pans Maintenance & Repair Guides
- Explore Transmission & Drivetrain
- Browse all Auto Parts
