If you want a dual-pack solution for older Nissan and Infiniti models with proven OEM compatibility, choose DeFageH 2Pcs; if you need a single cap specifically engineered for the newer 2013–2025 Pathfinder and Altima platforms, choose Oraivy 21712-ZN50A.
As an ATV owner who knows that a cooling system failure on a remote trail is not just an inconvenience but a potential disaster, I look at these two caps with a critical eye. You are likely standing in your garage or scrolling through your phone at the shop, trying to decide which part will keep your engine from boiling over when the heat ramps up. The market is flooded with options, but only two stand out for this specific application: the DeFageH 2Pcs set and the Oraivy 21712-ZN50A unit. This isn't about marketing fluff or guessing games; it is about matching the exact dimensions and pressure ratings required by your vehicle's year and model. One of these is designed as a comprehensive backup kit for a wide range of legacy vehicles, while the other is a precision fit for the modern SUV lineup. Getting this wrong means leaks, overheating, and a trip back to the store.
• DeFageH 2Pcs: Offers a robust double-pack for broad compatibility across older Nissan/Infiniti generations (2003–2020), featuring a slightly smaller inner diameter (1.18") and ultra-light weight. Best for owners of pre-2013 models or those wanting a spare in their toolkit.
• Oraivy 21712-ZN50A: Delivers a single-unit replacement tailored strictly for the 2013–2025 Pathfinder, Altima, and Maxima lines, boasting a wider inner diameter (1.37") to match newer reservoir designs. Best for owners of recent model years needing a direct factory-style swap.
The DeFageH 2Pcs Coolant Reservoir Cap is built for the mechanic who values preparedness and versatility. Its primary strength lies in its sheer breadth of compatibility. If you own a Nissan Rogue from 2008, a Murano from 2006, or even an older Infiniti G35, this cap is designed to slot right into place.
What stands out most is the quantity. You receive two reliable caps in one purchase. For an ATV owner or someone who lives far from auto parts stores, having a spare on hand is not a luxury; it is a necessity. If you have a leaky cap now, you can replace it immediately and keep the second one as a backup for the next season or a future repair. The packaging is designed to be compact, allowing you to toss both units into a glove box or toolbox without taking up much space.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-11-08 · 6 min read · Independent comparison
However, there is a specific trade-off regarding the physical dimensions. While this is perfect for the intended vintage vehicles, it might not seal correctly on newer models that require a larger internal fit. If your coolant tank feels tight or requires a snugger seal than what this cap provides, this product is not the right tool for the job. Furthermore, the outer diameter is listed at 1.46 inches, which is precise but slightly different from the Oraivy alternative. This product is strictly for those whose vehicles were manufactured before the mid-2010s redesigns took hold.
The Oraivy 21712-ZN50A targets a very specific demographic: owners of the modern generation of Nissan and Infiniti SUVs and sedans. This cap is explicitly labeled for the 2013–2025 Pathfinder, the 2011–2025 Altima, and the 2011–2023 Maxima. If you drive a newer model year vehicle, especially one where the cooling system architecture has evolved, this is the part you need. The design philosophy here is precision engineering for a specific platform rather than broad generality.
The key differentiator here is the inner diameter. This dimension is crucial for maintaining the correct pressure seal in the newer overflow tanks found in 2013 and later models. A mismatched inner diameter can lead to coolant leakage under pressure, which defeats the purpose of the cap entirely. The Oraivy unit also highlights its resistance to wear, scratches, and deformation, ensuring that the plastic holds up against the harsh chemical environment of the engine bay over time.
The trade-off with the Oraivy 21712-ZN50A is the quantity. You are purchasing a single unit. If you are doing a full system flush or replacing caps on both sides of a vehicle (though typically, the reservoir is singular), you might find yourself needing to order again if something goes wrong during installation. Additionally, its compatibility is narrower. It will not work on a 2008 Rogue or a 2005 FX35. If you try to force this cap onto an older vehicle, the fit will likely be loose, leading to immediate failure. This product is for the owner of a relatively new vehicle who needs a high-quality, direct-fit replacement.
• Best for broad legacy compatibility → DeFageH 2Pcs covers a vast range of models from 2003 to 2020, including the 350Z and Q45.
• Best for modern model years → Oraivy 21712-ZN50A is the clear winner for 2013–2025 Pathfinders and Altimas.
• Best for emergency preparedness → DeFageH wins hands down because it includes two caps, saving you a trip to the store if one fails.
• Best for precise sealing on newer tanks → Oraivy’s 1.37-inch inner diameter is better suited for the newer reservoir designs.
• Best value for multi-car households → DeFageH allows you to service multiple older vehicles or keep spares for less money per unit.
• Best for durability claims → Both use heat-resistant plastic, but Oraivy explicitly markets its scratch and wear resistance for long-term sealing.
• Best for direct OEM replacement → Oraivy matches the specific model number 21712-ZN50A, which is often the factory spec for newer Nissans.
I am recommending the DeFageH 2Pcs for most buyers, particularly if you are an ATV owner looking to secure your vehicle against unexpected breakdowns. The ability to have two caps in one package is a strategic advantage that cannot be overstated. When you are out on a trail or driving on a long commute, having a spare means you never have to worry about being stranded due to a minor component failure. The broader compatibility list also suggests a more robust design that has been tested across many different vehicle generations. However, if you own a brand-new 2024 Pathfinder or Altima, the Oraivy 21712-ZN50A is the safer bet simply because of that wider inner diameter. But for the average enthusiast who wants reliability and redundancy, the DeFageH 2Pcs is the smarter investment.
You should check the specific inner diameter requirements, but generally, the Oraivy 21712-ZN50A is listed for the 2013–2025 Pathfinder range, whereas the DeFageH is geared toward earlier models.
Buying a two-pack like the DeFageH option is more practical for preventative maintenance, giving you a spare to keep in your toolkit for emergencies.
Both manufacturers claim their premium plastic construction withstands high temperatures and maintains a tight seal to prevent liquid from overflowing during driving.
Yes, both products list compatibility with various Infiniti models, though the specific years differ between the two brands.
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