BDFHYK UF549 Ignition Coil Pack + Iridium Spark Plug 9029 Set of 4 for Select Nissan Models (2008–2021)

If your Nissan is starting to feel a bit off—rough idle, hesitation on acceleration, or fuel economy slipping—this BDFHYK ignition coil pack set paired with iridium spark plugs is aimed at fixing the problem where it usually starts: spark delivery and ignition consistency.

On paper, the combo targets both sides of the job. You’re getting an ignition coil pack identified as UF549 and iridium spark plugs identified as 9029, sold as a set of 4. That bundle approach can be convenient if you’re already planning an ignition refresh rather than only replacing one component.

That said, compatibility is a big deal here. The listing itself asks you to verify OE numbers and fitting details from the pictures or the product page, so it’s not a “fit it and forget it” purchase for every vehicle.

Key takeaways

This set pairs UF549 ignition coils with 9029 iridium spark plugs for select Nissan applications. The manufacturer positions it as a solution for common symptoms tied to worn ignition parts—think shaking at idle, start-up trouble, slower acceleration, and higher fuel consumption.

The materials story is fairly specific: the coil packs are described as made with silicon steel, Japan-imported rubber, and Germany-imported varnished wire, while the spark plugs are described as using an iridium electrode and ceramic. In a real-world maintenance sense, that’s meant to translate into dependable ignition and longer service life—though your actual results still depend on whether the parts truly match your exact OE spec.

What stands out (and why it matters)

The main “why” behind buying this isn’t flashy. It’s the pairing. When ignition coils and spark plugs age at different rates, you can end up chasing symptoms without fully resolving the underlying cause. Replacing both together is a more complete approach for many owners.

From the information provided, BDFHYK is presenting this as a maintenance set for higher-mileage vehicles, especially where the car has been used for a long time (the listing mentions over 80000 km) and you’re seeing drivability issues. If your goal is to restore smoother starts and steadier throttle response, this kind of bundle is exactly the sort of purchase that makes sense.

Still, it may not be the right move if your problem is caused by something else (like sensors, fuel delivery, or ignition wiring issues). It’s easy to replace parts—harder to fix the root cause.

Compatibility: double-check before you buy

The listing includes multiple vehicle fit ranges and also stresses OE checking as necessary before purchase. It lists compatibility with Nissan models such as Altima (2007–2013), Rogue (2008–2013), Sentra (2007–2019), Versa (2007–2011), Cube (2009–2014), NV200 (2013–2021), and mentions Chevrolet City Express (2015–2018). It also says to confirm fit detail from the pictures or the detail page.

More importantly, the coil and spark plug sections include OE numbers to verify. For coils, it references codes like UF549, UF-549, COP292, C751, and several additional identifiers. For spark plugs, it references 9029, 22401JA01B, 22401JA07B, 22401JD01B, DILKAR6A11, and VR8NII35U.

Before you hit buy, it’s worth taking a moment to compare the OE numbers on your current parts to the ones listed here. Otherwise, you may end up with a set that physically looks right but isn’t the true match.

Quick look at specs mentioned in the listing

BDFHYK describes the ignition coils as being built with silicon steel and varnished wire, with Japan-imported rubber and Germany-imported varnished wire. For the spark plugs, the listing highlights an iridium electrode and ceramic insulator design.

The set is sold as a set of 4, which aligns with the idea of replacing ignition coils and spark plugs together rather than piecemeal.

Usage tips

If you’re doing this as a DIY or shop job, the practical approach is to treat it as a full ignition refresh. That means installing the correct coil pack set and spark plug set for your exact OE, then giving the engine time to stabilize.

A quick “micro” example: after replacing both coils and iridium plugs, many drivers look for smoother first starts in the morning and less hesitation when pressing the gas after idling. If symptoms remain unchanged, it’s a sign you may need to look deeper (wiring, sensors, or fuel system rather than ignition parts alone).

One caution: the listing explicitly says OE checking is necessary, so if your current parts don’t match those identifiers, you may want to skip this set and confirm the correct numbers first.

Final verdict

Worth considering if you’re driving one of the listed Nissan models and you’re seeing ignition-related issues that fit the symptoms described, especially on higher mileage vehicles. The bundle strategy—coils plus iridium plugs—can be the more complete fix compared to only swapping one component.

It may not be the best choice if you’re not confident about OE matching. The listing repeatedly points you back to checking part numbers like UF549 for the coil and 9029 (and related codes) for the spark plug, and that’s a big deal for compatibility.

It’s also not the right purchase if your car’s issues are likely caused by something outside ignition (for example, unrelated sensor problems). In those cases, replacing parts can become a frustrating guessing game.

Mini FAQ

FAQ

Are these ignition coils and spark plugs meant to be replaced together?

The listing pushes that idea, and it’s a sensible maintenance approach on vehicles showing ignition symptoms. If you already plan to refresh ignition components, doing both together is typically more coherent than replacing just one.

What symptoms does this set target?

The description calls out car shaking, start-up failure/trouble, slower acceleration, and increasing fuel consumption—symptoms often associated with ignition wear.

How do I confirm it fits my vehicle?

Use the OE checking guidance. Compare your current coil and spark plug OE numbers to the codes provided in the listing, and verify the fit details via the pictures or the product page.

What if my Nissan model is listed but the OE numbers don’t match?

Then compatibility is questionable. Based on the listing’s own advice, you should not assume it will be correct—verify OE numbers first.

Is iridium part of the value here?

The spark plug description highlights an iridium electrode and ceramic construction, which is positioned as helping with reliable starts and quicker acceleration after installation. Whether it’s the right upgrade for your specific setup depends on correct matching and condition of the rest of the ignition system.