7 Best Transmission Pans for Infiniti G37: Easier Service And Leak Prevention

Mike
By Mike
Certified Professional Automotive Mechanic – Owner and Editor of VehicleRuns
Last Updated: June 19, 2026

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If you own an Infiniti G37, choosing the right transmission pan can reduce mess and make routine service faster. The wrong pan or gasket can lead to leaks, poor fluid flow, or difficult maintenance. This guide highlights the top shortlisted options for the Infiniti G37 transmission pan based on fitment, service features, and durability. We evaluated each choice for how it affects cooling, ease of fluid changes, and long-term sealing performance. Browse the list to find pans that match your needs and read the notes on serviceability before you buy.

Top Picks at a Glance

Phraetyson Transmission Oil Pan (replacement for 31390-1XJ0C)Phraetyson Transmission Oil Pan (replacement for 31390-1XJ0C)
Best Quality
Built to a higher standard if you want something more solid
Lesurey Transmission Oil Pan for Infiniti and Nissan VehiclesLesurey Transmission Oil Pan for Infiniti and Nissan Vehicles
Best Value
The sweet spot between price and what you get
Dorman 265-819 Transmission Oil Pan — Replacement for Select Infiniti/Nissan ModelsDorman 265-819 Transmission Oil Pan — Replacement for Select Infiniti/Nissan Models
Best Budget
The cheapest option that still gets the job done reliably
XUNUOPARTS 7-Speed Automatic Transmission Oil Pan for Infiniti G37 (2009–2013)XUNUOPARTS 7-Speed Automatic Transmission Oil Pan for Infiniti G37 (2009–2013)
Highest Rated
A top-rated pick with lots of positive feedback
Getfarway Transmission Oil Pan – Replacement for Infiniti G37 (31390-1XJ0C)Getfarway Transmission Oil Pan - Replacement for Infiniti G37 (31390-1XJ0C)
Most Popular
A crowd favorite that many people choose with confidence
Dorman Transmission Oil Pan with Drain Plug and Filter Assembly (Model 265-811)Dorman Transmission Oil Pan with Drain Plug and Filter Assembly (Model 265-811)
Best Seller
A high-volume bestseller chosen again and again
Dorman 265-866 Transmission Oil PanDorman 265-866 Transmission Oil Pan

1. Phraetyson Transmission Oil Pan (replacement for 31390-1XJ0C)

Phraetyson Transmission Oil Pan (replacement for 31390-1XJ0C)
Best Overall
A stamped steel replacement transmission oil pan designed to fit specified Nissan and Infiniti models including the Infiniti G37, offering a direct bolt-on replacement for worn or corroded factory pans.
Manufacturer Part NumberLXO-008LX
ExteriorMachined
OEM Part Number313901XJ0A, 31390-1XJ0A, 313901XJ0C, 31390-1XJ0C

This Phraetyson transmission oil pan is a direct replacement designed to restore a leaking or rusty factory pan on compatible Infiniti G37 models. Made from stamped steel with a machined exterior finish, it installs using the original bolt pattern and reproduces the factory sealing flange so it lines up 1:1 with the transmission case. Typical use is a routine transmission service or repair where the original pan has corrosion, pinholes, or damaged threads. The steel construction is durable and corrosion resistant compared with a heavily rusted original, and the pan is inspected before shipment to reduce fitment issues. It is a simple part so expect straightforward installation but plan to replace rusty bolts and clean threads before reinstallation as reviewers noted; using a factory gasket and new fasteners improves sealing and reliability. This is a budget-friendly, factory-style replacement rather than an upgraded performance sump, so it restores function without added features like increased capacity or integrated drain fittings.

Best for: Balanced buyers who want a reliable, factory-style replacement to repair a leaking or corroded transmission pan on an Infiniti G37 without paying for performance upgrades.

Less Ideal for: Drivers seeking an upgraded performance or service-friendly pan with extra capacity or integrated drain fittings should look at specialty aftermarket options instead.

Pros:
  • Direct bolt-on fit for listed Infiniti Nissan models matching factory bolt pattern
  • Stamped steel construction provides solid durability and improved corrosion resistance over heavily rusted originals
  • Machined exterior and inspected before shipment to reduce fitment surprises
  • Reproduces factory sealing flange for straightforward installation with a proper gasket
Cons:
  • Stamped design is a direct replacement and does not add extra fluid capacity or built-in drain features
  • Installation may require replacing seized or rusty bolts and cleaning/tapping threads for proper fit

Verdict: A durable, factory-pattern stamped steel replacement that restores a leaking or rusty transmission pan on compatible Infiniti G37s.

2. Lesurey Transmission Oil Pan for Infiniti and Nissan Vehicles

Lesurey Transmission Oil Pan for Infiniti and Nissan Vehicles
Best Quality
A machined aftermarket transmission oil pan designed to replace factory pans on a range of Infiniti and Nissan models including the G37 and 370Z.
ManufacturerLesurey
ModelTransmission Oil Pan
ExteriorMachined
Item model number313901XJ0C

This Lesurey transmission oil pan is an aftermarket, machined replacement intended for use on multiple Infiniti models including the G37 and on Nissan 370Zs within the listed year ranges. It replaces the factory pan to restore a proper transmission fluid reservoir after service or repair. The machined exterior and direct-fit mounting points make installation straightforward for a competent DIYer or a shop, and the pan provides the same basic function as the original part while using a stamped/machined construction billed by the manufacturer. Practical benefits include restoring a sealed, serviceable pan after damage or corrosion and avoiding the need to buy an OEM part. Limitations are that this is an aftermarket component rather than a factory part and compatibility must be confirmed against the vehicle VIN or existing part number before purchase. Expect typical fit-and-finish variance compared with factory-quality parts and have the transmission fluid and filter changed following installation.

Best for: Performance-oriented owners who prioritize restoring or maintaining drivetrain integrity on tuned or high-mileage Infiniti G37s and want a direct replacement without sourcing OEM parts.

Less Ideal for: Buyers seeking guaranteed factory-quality fit and finish or those who prefer dealer-sourced factory replacement parts should consider OEM pans instead.

Pros:
  • Machined exterior provides a clean, finished look compared with unmachined aftermarket pans
  • Direct-fit design listed for many Infiniti G37 model years and related Nissan models
  • Useful replacement after damage or corrosion to restore a serviceable transmission pan
Cons:
  • Aftermarket part so fit and finish can vary from factory-quality replacements

Verdict: A machined aftermarket transmission pan offering a direct-fit replacement for Infiniti G37 owners who need a practical, serviceable substitute for a damaged factory pan.

3. Dorman 265-819 Transmission Oil Pan — Replacement for Select Infiniti/Nissan Models

Dorman 265-819 Transmission Oil Pan — Replacement for Select Infiniti/Nissan Models
Best Value
A direct-replacement transmission oil pan designed to match fit and function for select Infiniti and Nissan models for leak-free service.
ManufacturerDorman Products
Model265-819
PositionCenter
Bolt Pattern (Number of Holes)21

This Dorman transmission oil pan is a direct replacement designed to restore a damaged or leaking factory pan on compatible vehicles. It installs in the same location and uses the original bolt pattern so installers can remove the old pan and bolt this one on as a like-for-like swap. Built from stamped metal with a ready-to-paint exterior, the pan aims for durability and leak-free performance and has undergone try-on testing to verify fit. In real-world use it simplifies a common repair: replace a punctured or corroded pan, reseal with a quality gasket, and you avoid the expense of a full transmission service. Some buyers report the pan is shallower than the factory unit and does not include magnets, so fluid capacity and particle collection may differ from the factory pan and you may need to transfer magnets from the original. Fit and bolt alignment are generally reported as good for Nissan/Infiniti vehicles, making this a practical, lower-cost option for routine repairs on the Infiniti G37 when a factory-quality replacement pan is acceptable.

Best for: A practical optimizer who wants a reliable, lower-cost factory-quality replacement to fix a damaged transmission pan on an Infiniti G37 without paying dealer rates.

Less Ideal for: Owners seeking exact factory fluid capacity or a pan with built-in magnetic particle collection should consider alternatives or OEM pans.

Pros:
  • Direct replacement fit with matching bolt pattern for straightforward installation
  • Durable stamped construction intended for leak-free service
  • Ready-to-paint exterior so you can match underbody appearance
  • Try-on tested to confirm fitment with compatible vehicles
  • Widely reported positive fit and easy installation by installers and DIYers
Cons:
  • Shallower depth than some factory pans which can reduce fluid capacity
  • Does not include magnets, requiring reuse or transfer from the original pan

Verdict: An affordable, factory-style replacement pan that restores fit and leak-free service on compatible Infiniti G37 models.

4. XUNUOPARTS 7-Speed Automatic Transmission Oil Pan for Infiniti G37 (2009–2013)

XUNUOPARTS 7-Speed Automatic Transmission Oil Pan for Infiniti G37 (2009–2013)
Best Budget
A budget replacement 7-speed transmission oil pan made to fit Infiniti G37 (2009–2013) and several other compatible Infiniti/Nissan models.
BrandXUNUOPARTS
Fit7 Speed Automatic Transmission
Manufacturer Part NumberXNO-008
ExteriorChrome
ManufacturerXUNUOPARTS

This XUNUOPARTS transmission oil pan is a direct replacement-style pan intended for 7-speed automatic transmissions used on the Infiniti G37 (2009–2013). It installs in place of the factory pan to restore a sealed transmission sump after damage or during an overhaul. The pan is finished in chrome and lists multiple factory part numbers for fitment, which helps match it to the correct 7-speed units. For practical use it provides the basic function of holding transmission fluid and accepting the transmission filter and drain operations during service. The main benefits are straightforward: it is an affordable, ready-fit pan that lets you complete a transmission service or repair without sourcing a dealer part. Expect a no-frills construction with limited extras and possibly differences in finish or hole locations versus factory parts, so confirm bolt patterns and drain plug alignment during installation. For a budget repair on an Infiniti G37 this pan covers the needed service function but may not match factory corrosion protection or precision trimming offered by higher-end replacements.

Best for: Budget-conscious owners who need a functional, low-cost transmission pan to complete a repair or fluid service on an Infiniti G37 (2009–2013).

Less Ideal for: Owners seeking an exact factory-grade replacement with OEM corrosion protection, certified fitment guarantees, or premium materials should consider dealer or premium aftermarket pans instead.

Pros:
  • Designed for 7-speed automatic transmissions including Infiniti G37 2009–2013 compatibility
  • Low-cost replacement that enables transmission service or pan replacement without dealer parts
  • Chrome exterior finish for a cleaner appearance compared with uncoated pans
Cons:
  • May differ from factory pan in hole alignment, finish quality, or corrosion protection
  • Limited documented specifications and manufacturer support information

Verdict: A very affordable replacement transmission oil pan that gets the G37’s 7-speed sump back in service without the premium price.

5. Getfarway Transmission Oil Pan – Replacement for Infiniti G37 (31390-1XJ0C)

Getfarway Transmission Oil Pan - Replacement for Infiniti G37 (31390-1XJ0C)
Highest Rated
A direct-fit replacement transmission oil pan designed to match factory fitment for Infiniti G37 models listed by the manufacturer.
ManufacturerGetfarway
Model31390-1XJ0C 31390-1XJ0A
ExteriorMetal
Date First AvailableJanuary 7, 2025

This Getfarway transmission oil pan is sold as a factory-style replacement for Infiniti vehicles that use part number 31390-1XJ0C, including G37 applications in the specified year range. It installs in place of the original pan to restore a leak-free transmission sump after damage or corrosion and is meant to be used with the vehicle's existing gasket and drain hardware. Notable features include metal construction and manufacturer-stated compatibility with several Infiniti models, which suggests it follows the factory pan shape and bolt pattern. In practice this part provides a straightforward repair path for shops or DIYers comfortable with basic underbody work and fluid draining. Important limitations: the listing does not include a gasket or bolts and the product description advises verifying part numbers and vehicle fitment before purchase, so buyers should confirm compatibility with their G37 VIN and have replacement fasteners and sealant on hand. The seller also notes a 12-month return policy for peace of mind.

Best for: Reliability-focused buyers who prioritize restoring factory function with a cost-effective, direct-fit replacement to keep an Infiniti G37 reliably on the road.

Less Ideal for: Drivers who want an upgraded performance or aftermarket pan with added cooling or capacity features should consider purpose-built alternatives rather than a factory-style replacement.

Pros:
  • Made from metal for durability consistent with factory replacement parts
  • Listed to replace specific part number 31390-1XJ0C for direct-fit installation
  • Compatible with Infiniti G37 per manufacturer listing which simplifies selection
  • Backed by a 12-month return service for post-purchase support
Cons:
  • Gasket, bolts, and drain plug hardware are not listed as included
  • Fitment must be verified against the vehicle VIN since the listing covers many models

Verdict: A straightforward metal replacement transmission pan that restores factory fitment for Infiniti G37 owners seeking a reliable repair.

6. Dorman Transmission Oil Pan with Drain Plug and Filter Assembly (Model 265-811)

Dorman Transmission Oil Pan with Drain Plug and Filter Assembly (Model 265-811)
A steel replacement transmission oil pan with integrated drain plug, filter assembly, gasket and E-coat finish designed as a service-friendly repair for compatible vehicles.
MaterialSteel
IncludesFilter assembly, gasket, integrated magnet
FinishE-coat
Bolt Pattern (Number of Holes)16

This Dorman transmission oil pan replaces a factory-style pan while adding a service-friendly drain plug so fluid can be removed before removing the pan. It is constructed from steel with an E-coat finish for corrosion resistance and ships with a filter assembly, gasket and integrated magnet for capturing metal debris. In practice the drain plug makes filter changes and fluid service much cleaner and faster, and the included filter and gasket simplify a one-stop repair. Fit and installation can be straightforward on vehicles that share the same pan geometry, though some buyers report minor clearance or bracket interference that requires removing a small bracket or modifying the dipstick stop during installation. The pan is heavier-duty than many originals, but buyers should verify fit for their specific Infiniti G37 submodel and be prepared to swap the crush washer or use a high-quality washer on the drain bolt. Overall this pan is a practical upgrade for owners who want an easier fluid change and a complete replacement kit in one package.

Best for: Convenience-driven owners who prioritize faster, cleaner transmission service and prefer buying a single kit that includes a pan, filter and gasket.

Less Ideal for: Buyers seeking a guaranteed bolt‑in, exact OEM replacement without any potential clearance work should consider checking fitment carefully or choosing a direct factory replacement.

Pros:
  • Integrated drain plug lets you drain transmission fluid before pan removal for a cleaner service
  • Includes filter assembly and gasket so you get a complete repair kit in one purchase
  • E-coat finish and steel construction improve corrosion resistance and durability
  • Integrated magnet helps catch metal particles during service
Cons:
  • May require minor clearance work or removal of a bracket/dipstick stop on some vehicles to install
  • Does not come with a dedicated crush washer for long-term leak prevention in some cases

Verdict: A service-friendly steel replacement pan that simplifies transmission fluid and filter changes with its integrated drain plug and complete kit.

7. Dorman 265-866 Transmission Oil Pan

Dorman 265-866 Transmission Oil Pan
Best Seller
A steel replacement transmission oil pan designed to match the fit and function of the original for reliable, leak-free service.
MaterialSteel
Included ComponentsTransmission Pan
Part Number265-866
Item Type NameAutomatic Transmission Oil Pan

This Dorman transmission oil pan is a direct replacement designed to restore a damaged factory pan on compatible vehicles. Made from steel and finished in black, it is intended for bolt-in installation and has been try-on tested for fit. Typical use is as a service replacement when the original pan is dented, cracked, or leaking; installers will fit it with a new gasket and torque the drain bolt to seal. Notable features include durable steel construction, a drain plug for easier fluid changes, and Dorman’s limited lifetime warranty. In practice it provides a sturdy, cost-effective repair without modifying the transmission. Some owners report that the drain bolt and its washer require careful torquing to avoid leaks or stripping, so expect to use the correct tools and possibly replace the crush washer. Fitment should be confirmed for the Infiniti G37 before purchase and installers should plan to replace the gasket and follow torque specs during installation.

Best for: Risk-averse mainstream buyers looking for a reliable, factory-quality replacement that restores original function without upgrades and keeps repair downtime and uncertainty to a minimum.

Less Ideal for: Owners seeking performance upgrades, aluminum weight savings, or a pan with advanced features like integrated cooling fins should consider aftermarket performance pans instead.

Pros:
  • Steel construction for durability compared with thin factory pans
  • Includes a drain plug to simplify fluid changes
  • Try-on tested for fit to help ensure correct alignment during installation
Cons:
  • Drain bolt uses a crush-style washer that can require high torque and may be prone to leaking if not tightened correctly

Verdict: A sturdy, tried-fit steel replacement pan that restores factory function and simplifies fluid changes with a drain plug.

Choosing the Right Infiniti G37 Transmission Pan: Key Factors to Consider

Vehicle-Specific Fitment

Correct fitment is the most important factor because bolt pattern, pan depth, and clearances vary by transmission. A pan that does not match the Infiniti G37 transmission can cause leaks, interference with nearby components, or improper fluid levels. Always verify the pan is specified for the G37 transmission model and year. Incorrect fitment often leads to extra labor, gasket damage, or the need for additional adapters.

Gasket And Sealing Method

The gasket type and how it seals the pan to the transmission case strongly influence long-term leak resistance. Some designs use molded rubber gaskets, others use paper or cork, and some rely on a formed flange with RTV. Each approach has different installation tolerances and longevity. Consider whether the gasket is reusable, the need for sealant, and how the design handles flange warpage. A robust sealing method reduces the chance of recurring transmission pan leak issues.

Drain And Service Features

A drain plug or removable insert makes fluid changes faster, cleaner, and less expensive in labor. Without a drain feature, fluid must be pumped or the pan fully removed to change fluid, which increases contamination risk and effort. Look for pans that offer an integrated drain or easy access to the filter to minimize fluid loss and simplify routine maintenance like transmission fluid change pan procedures.

Material And Corrosion Resistance

Pan material affects durability and cooling. Steel pans are strong and resist impact but may rust without proper coating. Aluminum pans are lightweight and dissipate heat well but can dent more easily. The finish or coating determines long-term corrosion protection, especially in regions with road salts or humid conditions. Choose a material and finish that balance durability, heat dissipation, and resistance to environmental corrosion for the lifespan you expect.

Clearance And Pan Depth

Pan depth influences fluid capacity and ground clearance. A deeper pan holds more fluid and can improve cooling, but it may reduce clearance and risk scraping on road obstacles. Too shallow a pan can limit fluid capacity and affect cooling and pressure stability. Assess how much additional depth you can accommodate under the vehicle and whether the pan changes the stock clearance of the Infiniti G37.

Installation And Torque Considerations

Proper installation includes correct bolt torque and sequence to avoid warping the pan flange and to achieve an even seal. Some pans specify different torque specs than factory pans, and installers need clear guidance to prevent gasket damage or leaks. Ensure the pan design allows even clamping of the gasket and that torque specs are available. Ease of installation affects total labor time and the reliability of the seal after service.

How We Chose the Best Infiniti G37 Transmission Pan

We focused exclusively on pans that fit the Infiniti G37 transmission and meet practical service and longevity needs. Our selection criteria included: precise vehicle-specific fitment to ensure correct bolt patterns and pan depth; drain or service features that simplify fluid changes; gasket design and sealing method to reduce the chance of leaks; pan material and finish for corrosion resistance and heat dissipation; and compatibility with routine maintenance such as filter access and torque specifications. We excluded pans that required transmission case modifications, unspecified universal fits, or pans lacking clear torque and fit data. We also filtered out options with poor corrosion protection or those that would compromise filter access. The remaining picks balance serviceability, sealing reliability, and durability for real-world use on the Infiniti G37.

Our full evaluation process is outlined in our review methodology.

FAQ

How often should I check the Infiniti G37 transmission pan for leaks?

Check the transmission pan area during routine maintenance or oil changes, typically every few thousand miles. Look for fresh fluid on the pan, gasket seam, or nearby components. Early detection of a transmission pan leak often prevents larger problems and simplifies repairs.

Can I reuse the original gasket when installing a new transmission pan?

Reusing an old gasket is sometimes possible but not usually recommended. Gaskets can compress or become damaged when removed, which increases the chance of a leak. For best results, use a new gasket or sealing method specified for the replacement transmission pan.

Is a drain plug on the transmission pan worth having?

A drain plug is often beneficial because it reduces fluid loss and simplifies transmission fluid change pan tasks. It makes routine service cleaner and faster, and can lower labor if you perform fluid changes yourself. Keep in mind that the drain fitting and seal must be maintained to avoid new leak points.

Will a deeper pan improve my transmission cooling?

A deeper pan can increase fluid capacity and surface area, which may aid passive cooling under some conditions. However, cooling gains are modest without other changes such as external coolers. Also consider the tradeoff with reduced ground clearance when choosing a deeper pan.

What torque specs should I use when installing a replacement transmission pan?

Use the torque specs recommended for the specific pan and the Infiniti G37 transmission. Proper torque and sequence help prevent flange warpage and ensure an even seal. If the replacement pan documentation differs from factory specs, follow the pan maker's guidance and verify compatibility with the vehicle's bolt pattern.

Are aftermarket transmission pans reliable compared with OEM-style pans?

Aftermarket pans can be reliable when they match vehicle-specific fitment and use quality materials and sealing methods. Reliability depends on design, material quality, and correct installation. Choose pans with documented fitment for the Infiniti G37 and clear service documentation.

Conclusion

When choosing an Infiniti G37 transmission pan, prioritize correct fitment, a reliable gasket or sealing method, and service features that make fluid changes easier. Consider material and corrosion protection in light of your driving conditions, and weigh pan depth against ground clearance needs. Pay attention to installation details such as torque specs and bolt sequence to protect the gasket and flange. Balancing serviceability and long-term sealing will reduce the likelihood of leaks and make routine maintenance less disruptive.

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Mike - Certified Professional Automotive Mechanic

About the Author: Mike

Mike is an experienced professional automotive mechanic with hands-on experience maintaining and repairing a wide range of vehicles. At VehicleRuns, he focuses on helping car owners make better decisions about parts, tools, and repairs by combining real-world experience with clear, practical guidance.