Suspenix Aluminum Oil Filter Cap for Jeep & Dodge 3.6L V6 (2014–2021) — Direct-Fit with Replacement O-Ring

Suspenix Upgrade Aluminum Oil Filter Cap is a durable, direct-replacement metal oil filter housing cap designed to replace the fragile factory plastic cap on 3.6L 6-cylinder engines.

The Suspenix aluminum oil filter cap provides a stronger alternative to the original plastic cover that often cracks or breaks during routine oil changes on many Chrysler and Jeep vehicles equipped with the 3.6L V6. Machined from aluminum and supplied with a replacement O-ring, this cap reduces the risk of housing damage and makes cartridge removal and installation cleaner and more reliable. It fits a wide range of models from 2014–2021 and installs using the factory sealing surface—just avoid overtightening.

Will this cap fit my Jeep or Dodge with the 3.6L V6?

Yes — the Suspenix cap is designed to match the factory dimensions and sealing interface used across many 6-cylinder 3.6L applications. It replaces the OEM plastic cap directly and is compatible with the same oil filter cartridge arrangement.

• Compatible models: 2014–2021 Cherokee, Wrangler, Gladiator, Grand Cherokee (3.6L V6)
• Also fits: 2014–2020 Challenger, Charger, Grand Caravan; 2014–2021 Durango; 2014–2019 Journey
• Includes a replacement O-ring for a reliable seal
• Designed for direct-fit installation without modification

How does an aluminum cap improve oil change reliability?

Aluminum is far less likely to crack or deform under the stresses of cartridge removal compared with the stock plastic cap. That means fewer unexpected failures, no need to disassemble the upper housing, and less risk of damaging the filter housing during service.

• Stronger construction reduces chance of snapping during filter removal
• Preserves the upper housing integrity when removing the old cartridge
• Replacement O-ring maintains a leak-resistant seal
• Corrosion-resistant finish for long-term durability

Is installation difficult and what should I watch for?

Installation is straightforward for anyone comfortable with basic oil-change tasks: remove the old cap, swap the O-ring, and thread the Suspenix cap onto the housing. The main precaution is to avoid overtightening the aluminum cap—hand-tight plus a small wrench final turn is sufficient.

• Remove old cap and filter cartridge carefully and straight out
• Replace the O-ring included with the cap to ensure a proper seal
• Thread cap by hand and finish with moderate torque—do not overtighten
• Check for leaks after the first run and re-torque if needed

Does this cap require any other modifications or special tools?

No special modifications are necessary; the Suspenix cap uses the factory mating surface and standard cartridge filter layout. Installation only requires common hand tools used during oil changes, though a torque-limiting wrench helps avoid over-tightening.

• No drilling, rethreading, or housing replacement required
• Fits the stock cartridge filter without adapters
• Standard oil-change tools (ratchet, sockets) are sufficient
• Optional torque wrench recommended to preserve threads and O-ring

Who is this for: The Suspenix aluminum oil filter cap is aimed at Jeep and Dodge owners who perform routine maintenance themselves or want to prevent common failures associated with the OEM plastic cap. It's ideal for technicians, DIYers, and fleet managers running 3.6L V6 vehicles from model years 2014–2021 who prefer a durable, reusable metal cap that reduces the chance of housing damage during oil service.