A Guide to Transmission Filter Kits for the 2012-2023 Dodge Charger
Choosing the right transmission filter kit for your Charger depends entirely on which transmission you have.
- First, identify your transmission: 5-speed NAG1 (separate filter) or 8-speed ZF (integrated pan/filter).
- For 8-speed ZF transmissions, the Mopar OEM pan/filter assembly is the most reliable choice.
- For 5-speed NAG1 transmissions, Wix and Mopar offer excellent quality filter kits.
- Always use the correct transmission fluid for your specific model (ATF+4 for NAG1, Mopar 8&9 Speed ATF for ZF). Using the wrong fluid will cause severe damage.
Which Transmission is in My 2012-2023 Dodge Charger?
Before you buy any parts, you must know which automatic transmission is in your car. The 2012-2023 Charger used two main types, and the filter kits are completely different.
- NAG1 (also called W5A580): This is a 5-speed automatic transmission from Mercedes-Benz. It was common in models from 2012 to 2014, especially on V6 and 5.7L V8 models. These use a simple, replaceable filter inside a metal pan. The kit includes a filter and a pan gasket. 🎬 Watch: How to replace the filter and gasket on NAG1 transmissions.
- ZF 8-Speed (845RE, 8HP70, 8HP90): This 8-speed automatic became common around 2012 for V6 models and was standard on all models by 2015. The 845RE is typically on 3.6L V6 cars, the 8HP70 on 5.7L and 6.4L V8s, and the 8HP90 on high-performance Hellcat models. For these transmissions, the filter is built into the transmission pan. You must replace the entire pan assembly.
Symptoms of a Clogged Transmission Filter
A dirty filter restricts fluid flow, which can feel like a major transmission problem. Ignoring these signs can lead to expensive damage.
- Delayed or Hard Shifting: The car may hesitate before going into gear or shifts may feel harsh and jerky.
- Whining or Buzzing Noises: You might hear a whining sound from the transmission area, which gets louder as you accelerate. This is often the pump struggling to pull fluid through a clogged filter.
- Slipping Gears: The engine RPMs might increase, but the car doesn't accelerate properly, as if it's stuck between gears.
- Leaking Fluid: While not always the filter, any transmission fluid leak is a sign you need an inspection.
- Transmission Overheating: Restricted fluid flow reduces cooling, which can cause the transmission to overheat and trigger a warning light. 🎬 Watch: See these common symptoms of a clogged filter in action.
Choosing the Right Aftermarket Kit: Brand Quality
Not all aftermarket parts are created equal. For a critical component like a transmission filter, quality matters.
For 8-Speed ZF Transmissions (Pan/Filter Assembly)
This is a complex part, and the original Mopar/ZF design is excellent. Aftermarket options are available, but quality varies.
- Top Tier (OEM): Mopar is the original part manufacturer. It's a plastic pan with an integrated multi-layer filter, gasket, and magnets. This is the safest, most reliable choice. Some owners upgrade to a more expensive aftermarket metal pan from brands like SunCoast, which can improve cooling and has a replaceable filter element for future services.
- Mid-Tier (Quality Aftermarket): Brands like Dorman and Elring offer direct replacements for the plastic pan. They are a cost-effective alternative to Mopar. However, inspect the part carefully upon arrival to ensure the gasket and filter media look well-made.
- Economy Tier: Be cautious with the cheapest online options. A poorly made pan can warp, causing leaks, or use a low-quality filter that doesn't protect your transmission.
For 5-Speed NAG1 Transmissions (Filter & Gasket Kit)
This is a more traditional filter. The main differences are the filter media and the gasket material.
- Top Tier (OEM & Premium Aftermarket): Mopar and Wix are excellent choices. Wix is a highly respected filter company, and their kits are known to be equivalent to OEM quality.
- Mid-Tier (Quality Aftermarket): Brands like ATP and Premium Guard offer reliable kits. They are a good balance of price and quality for a standard transmission service.
- Economy Tier: While very cheap, store-brand kits may use lower-density filter material or a flimsy gasket that is prone to leaking. Given the low cost of a quality kit, it's not worth the risk.
A Note on Known Issues
While no recalls exist for the transmission filters themselves, some related issues are worth knowing. Certain 2012-2014 Chargers with the 8-speed were recalled for the electronic shifter, which could cause a rollaway risk if not put in Park correctly (NHTSA 16V-240). Additionally, Dodge has issued Technical Service Bulletins (TSBs) to update the Transmission Control Module (TCM) software to improve shift quality. If you experience poor shifting, it may not always be the filter.
Cost of Replacing a Dodge Charger Transmission Filter Kit
| Part Type | Typical Cost |
|---|---|
| New Aftermarket (5-Speed NAG1 Kit) | $35 - $70 |
| New Aftermarket (8-Speed ZF Pan/Filter) | $100 - $250 |
| New OEM (Mopar 5-Speed Kit) | $60 - $100 |
| New OEM (Mopar 8-Speed Pan/Filter) | $200 - $400+ |
| Shop Labor for Replacement | $150 - $350 |
Costs are estimates and can vary by location and vehicle specifics. Fluid cost is separate and can be significant ($150+).
Frequently Asked Questions
How often should I change my transmission filter?
For the 8-speed ZF, many experts and Mopar itself recommend a service every 30,000 to 60,000 miles, especially with performance driving. For the 5-speed NAG1, a 60,000-mile interval is a common recommendation. Your owner's manual may state "lifetime fluid," but for a high-performance vehicle, regular service is cheap insurance against a transmission failure.
Can I reuse my transmission pan?
If you have the 5-speed NAG1, yes. You just clean the original metal pan and reinstall it with a new gasket. If you have the 8-speed ZF, no; the filter is part of the pan, so the entire assembly must be replaced.
What transmission fluid should I use?
This is critical. For the 5-speed NAG1, you need an ATF+4 certified fluid. For the 8-speed ZF transmissions, you must use Mopar 8&9 Speed ATF or a compatible fluid like ZF-Lifeguard 8. Using the wrong fluid can destroy your transmission.
Is this a good DIY job?
For an experienced DIY mechanic, yes. However, it can be messy. The key challenge is refilling the transmission to the correct level. Both the NAG1 and ZF transmissions lack a traditional dipstick and require checking the fluid level at a specific temperature. If you are not comfortable with this procedure, it's best to have a professional shop do the work.
Helpful Videos
Technical Specifications
OEM Part Numbers: 52108332AA (NAG1 Filter) 68225344AA (8-Speed Pan/Filter for 8HP70) 68261170AA (8-Speed Pan/Filter for 5.7L/6.4L V8) 68261504AA (8-Speed Pan/Filter for 6.2L Supercharged)
Kit type depends on transmission. NAG1 (W5A580) uses a filter and gasket. ZF 8-speeds (845RE, 8HP70, 8HP90) use a complete pan with an integrated filter.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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