An Owner's Guide to the 2002-2010 Dodge Ram 1500 Transmission Filter Kit
Your Ram 1500 has two transmission filters, and replacing both is critical for a long-lasting transmission.
- Your Ram 1500 has two transmission filters (sump and spin-on) that both need to be replaced.
- Verify you are buying the correct sump filter for your truck's drivetrain, as 2WD and 4WD versions are different.
- Many owners recommend using OEM Mopar filters for the best fit and reliability, but high-quality aftermarket kits are available.
- Always use ATF+4 certified transmission fluid to avoid shifting problems and potential damage.
The Dual-Filter System in Your Ram 1500

Unlike many vehicles, the 2002-2010 Dodge Ram 1500 with the 45RFE or 545RFE automatic transmission is equipped with two separate transmission filters. Both are critical for protecting your transmission. The first is a flat filter, often called a sump filter, located inside the transmission pan. The second is a canister-style, spin-on filter that looks similar to an engine oil filter. When servicing your transmission, it is vital to replace both filters, not just the one in the pan. 🎬 Watch: Step-by-step guide to replacing both transmission filters. Many basic aftermarket kits may only include the sump filter and a pan gasket, so always verify the contents before purchase.
Check Your Drivetrain: 2WD vs. 4WD Filters Are Different
The sump filter for a 4-wheel drive (4WD) model is different from a 2-wheel drive (2WD) model. 4WD trucks have a deeper transmission pan to clear the front driveshaft, and they require a sump filter with a longer fluid pickup tube. Installing a 2WD filter in a 4WD truck will cause the transmission to starve of fluid. Always confirm you are buying the correct kit for your specific drivetrain.
Symptoms of a Clogged Transmission Filter

When transmission filters become clogged, fluid flow is restricted. This can lead to a variety of shifting problems. You might notice delayed or harsh gear engagements, or the transmission may seem to slip between gears. A whining noise from the transmission, especially when cold, can also indicate a fluid starvation issue caused by a clogged filter. In severe cases, it can lead to overheating and cause the transmission to enter a protective "limp mode."
Choosing the Right Aftermarket Filter Kit

While OEM Mopar filters are a popular choice among owners for guaranteed fit and quality, several aftermarket brands offer complete kits. When shopping, the primary concerns are filter media quality, gasket material, and proper fitment.
Brand Quality Tiers
- Premium Aftermarket (Example: Wix): Brands like Wix have a strong reputation in the filter industry. A complete kit like the Wix 58843 includes both the sump filter and the spin-on filter, along with a pan gasket, providing everything needed for the service. While some forum users still prefer OEM, a top-tier aftermarket brand is generally considered a reliable choice.
- Standard Aftermarket (Examples: ATP, Premium Guard, Vaico): These brands offer a more budget-friendly option. Premium Guard highlights its use of high-quality rubber gaskets for a better seal. Vaico promotes its use of quality materials, though user reviews are mixed. With these kits, it is especially important to verify that both filters are included and that the sump filter matches your truck's drivetrain (2WD or 4WD).
Pro Tip: Use the Right Fluid and Consider a Reusable Gasket
Always refill your transmission with a fluid that meets the Mopar ATF+4 specification. 🎬 Watch: DIY walkthrough for changing your fluid and filters. Using the wrong fluid type can cause poor shifting and damage the transmission. Also, the cork or rubber gaskets included in many kits can be prone to leaking if not installed perfectly. Consider upgrading to a reusable rubber/steel pan gasket, which can provide a more reliable, long-term seal.
🎬 See these expert tips and tricks for a cleaner service.Typical Replacement Costs
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Kit | $21.50 - $72.34 |
| New OEM (Mopar) Kit | $60 - $110 |
| Shop Labor | $150 - $250 |
Frequently Asked Questions (FAQ)

How many transmission filters does a 2002-2010 Ram 1500 have?
It has two: a flat sump filter in the pan and a spin-on filter for the cooler return line. Both should be changed during a transmission service.
What is the difference between the 2WD and 4WD transmission filters?
The sump filter for 4WD models has a longer pickup tube to sit deeper in the pan. Using a 2WD filter in a 4WD truck will lead to fluid starvation and transmission damage.
Should I use an OEM Mopar filter or are aftermarket ones okay?
Many owners prefer OEM Mopar filters for their guaranteed quality and fit, especially the sump filter. However, reputable aftermarket brands like Wix are considered a good alternative. The biggest risk with lower-quality aftermarket kits is a poor fit or a leaky pan gasket.
What kind of transmission fluid does the 2002-2010 Ram 1500 need?
You must use an automatic transmission fluid that is certified to meet the Mopar ATF+4 specification. Using any other type of fluid can lead to serious transmission problems.
Helpful Videos
Technical Specifications
OEM Part Numbers: Sump Filter (Deep Pan/4WD): 5013470AE Spin-On Filter: 5179267AD
Fits 45RFE and 545RFE automatic transmissions. Requires ATF+4 fluid. Pan bolt torque: 105 in-lbs (12 Nm). Sump filter bolt torque: 40 in-lbs (4.5 Nm).
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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.
- Dodge Ram 1500:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- The Dual-Filter System in Your Ram 1500
- Check Your Drivetrain: 2WD vs. 4WD Filters Are Different
- Symptoms of a Clogged Transmission Filter
- Choosing the Right Aftermarket Filter Kit
- Brand Quality Tiers
- Pro Tip: Use the Right Fluid and Consider a Reusable Gasket
- Typical Replacement Costs
- Frequently Asked Questions (FAQ)
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