PML
Nissan Titan AAM 12 Bolt Rear Differential Cover – Heavy Duty Aluminum Upgrade
- SKU:
- PMLI-DCASMAS11189-0620
- MPN:
- DC-ASM-11189-AC
- Availability:
- Usually ships in 2-7 business days
Description
Enhance the durability and performance of your drivetrain with this Nissan Titan AAM 12 Bolt Rear Differential Cover, designed to provide superior protection and improved cooling under demanding conditions. Whether you're towing, off-roading, or daily driving, this upgraded cover helps maintain optimal differential performance.
Constructed from high-quality aluminum, this differential cover offers increased strength compared to factory stamped covers. The heavy-duty design helps protect internal components from damage while improving heat dissipation to keep your differential operating at optimal temperatures.
Engineered as a direct-fit replacement for Nissan Titan trucks equipped with AAM 12 bolt rear differentials, this cover ensures dependable fitment, secure sealing, and long-lasting reliability.
✅ Key Features:
- Fits Nissan Titan AAM 12 bolt rear differentials
- Heavy-duty aluminum construction for strength and durability
- Improves heat dissipation and cooling
- Provides added protection for internal components
- Ideal for towing, off-road, and heavy-duty applications
- Direct fit for easy installation and leak-free sealing
Upgrade your differential with confidence and ensure maximum protection and performance in demanding conditions.
Volume: 0.6 quarts over stock
Dimensions: 3.4 inches deep
Number of Bolts: 12 bolts
Status: PML is making covers for a rear differential cover for 2017 and newer Nissan Titan trucks.
The ring gear is probably 9.5 or 9.75 inches and probably made by American Axle for Nissan trucks and SUVs.
Benefits:
- Drain for easy servicing and magnetic drain plug included
- Extra capacity and fins to aid in cooling and heat dissipation
- Includes clip to support brake line
- Bolt on replacement, no modifications needed
- Heavy duty sand cast aluminum construction
- Follows same general shape as stock cover with an open interior
- Looks good on truck
- Classic fin design without advertising logo
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Applications:
2017 and newer Nissan Titan trucks with a 12 bolt differential.
The ring gear is probably 9.5 or 9.75 inches and probably made by American Axle for Nissan trucks and SUVs.
This PML cover is based on Nissan stock cover 38350 EZ20A. Nissan gasket is part number 38320 EZ20A.
Some 2016 and newer trucks have a 14 bolt rear differential cover. See PML Part Number 11157.
Always check your vehicle to verify differential and space available for a larger cover. Because configurations vary, PML cannot guarantee fitment.
Locations of Drain, Clip, Fill/Level Check, Optional Temperature Sending Unit
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Stock Cover

Pictures of: OEM differential cover, 2018 Titan cover, 2021 Titan cover.
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Inside of PML Cover
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Included with PML Cover
PML Titan rear differential cover ships with a new clip, magnetic drain plug and reusable washer, new bolts and a plug for the fill/level check hole.
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Gasket
Nissan gasket is part number 38320 EZ20A and this PML cover will with work with that gasket. Make sure it is clean and free of nicks.
PML differential covers work well with cork or cork composite or a paper gaskets. Or RTV silicon sealant can also be used.
PML Cover Compared to Stock
Additional Information
Year: |
2017 and up |
Make: |
Nissan |
Model: |
Titan (See Application Chart) |

