Is KYB a Good Strut? Yes—Here’s What 400 Rush Orders Taught Me

Yes, KYB is a good strut. In my role coordinating emergency parts for independent repair shops since 2019, I've handled more than 400 rush orders for suspension and electrical parts. KYB is one of the three brands I recommend without a long list of caveats. It's not the cheapest, and it won't turn a tired sedan into a race car, but it's a solid OE-grade replacement. And in 2025, the old idea that aftermarket struts are automatically worse than factory units is just outdated.

What was best practice in 2020 may not apply in 2025. The fundamentals of suspension damping haven't changed, but manufacturing precision and product availability have. That matters when a customer's car is sitting on a lift and you need a strut today, not next week.

Why I Put KYB on the Short List

When I first started in parts, I assumed a strut was basically a strut. Same bolt pattern, same length, same job. That's wrong. A cheap part with the right dimensions can still have the wrong valving, and you don't discover that until the car is back with a knocking noise and an unhappy customer.

In March 2024, a shop called at 6:15 a.m. about a customer's out-of-town vehicle. The normal turnaround for the struts was two days, but the vehicle needed to be done in 36 hours. We located a set of KYB units at a regional distributor, paid about $86 in courier fees on top of the $240 parts cost, and had them at the shop by lunch. The car was finished on time. The alternative was a stranded customer, a rental car, and about $1,100 in extra costs. That was the moment I stopped treating rush orders as a favor and started treating them as a system.

According to KYB's global website (kyb.com, accessed January 2025), KYB is one of the world's largest shock absorber manufacturers and supplies original-equipment suspension parts to automakers. That doesn't make every single unit perfect. It does mean the engineering knowledge from factory work carries over to the aftermarket line.

What About the KYB Shock Absorber 343135?

If you searched for the exact phrase kyb shock absorber 343135, here's the honest answer: I don't memorize every application chart, and I'd be suspicious of anyone who claims to. The 343135 is part of KYB's Excel-G gas-pressurized shock absorber line. It is designed as an OE-type replacement, not a tuner upgrade. For most daily drivers, that's the right category.

I should add that Excel-G is a specific line, not the whole KYB catalog. KYB also makes Gas-a-Just and other series. If someone tells you KYB is one type of shock, they haven't looked at the inventory list.

But the part number alone isn't enough. You still need to verify fitment against your vehicle's year, make, model, and trim. I've seen perfectly good parts ordered from the wrong application because someone trusted a seller's auto-fit dropdown. Use KYB's official catalog or give a parts supplier your VIN. That 30 seconds saves an extra trip and a rush fee.

Alternator Problem? Diagnose Before You Order Parts

Shocks get the attention, but a lot of my emergency orders are electrical and fuel-system related. One of the most common is an alternator problem that looks like a dead battery. If the battery warning light flickers, the headlights dim, or the car dies at idle, check the charging system before throwing parts at it. A loose belt, a bad connection, or a failed voltage regulator can all mimic a dead alternator. The easiest way to find out is a simple voltage test at the battery. That's a lot cheaper than ordering the wrong alternator and paying the restocking fee.

Mini Cooper Tail Light Failures Are Usually Not the Bulb

Another one I see weekly is a Mini Cooper tail light failure that isn't a burned out bulb. Water gets into the housing, corrodes the connector pins, and the light either flickers or goes dead. Swap the bulb with the other side first. If the bulb works, check the connector for green corrosion. A $15 connector can save you a $400 assembly. That's not a knock on Mini; it's just how sealed light units behave when water finds a way in.

How To Start a Car With a Bad Fuel Pump Relay

The direct answer: you don't start a car with a bad fuel pump relay and just keep driving. A fuel pump relay that fails open means no power to the pump, so the engine cranks but won't fire. If the relay fails closed, the pump may run constantly, which can drain power and flood the system. Either way, the correct fix is replacing the relay.

For a temporary check, find another relay in the fuse box with the same part number and swap them. Many cars have a horn relay or similar non-critical relay that's a match. If the car starts, you've confirmed it was the relay. Then drive straight to get the right relay and swap it back. I don't recommend bypassing the relay with a jumper wire unless you know exactly what you're doing, and even then it should be a diagnosis step, not a permanent repair. I should add that a car with a bad fuel pump relay is not a drive-home-and-think-about-it-later problem. The relay is cheap. The tow bill is not.

When KYB Isn't the Right Answer

I don't want to sound like a fanboy. KYB is a good strut for normal passenger vehicles, but there are edges to every swing. If you're building a track car, carrying heavy loads, or running a commercial fleet with hard miles, a heavy-duty or application-specific shock may be a better fit. My experience is based on roughly 400 orders for independent shops, mostly Japanese and Korean daily drivers. If you're working on something more specialized, use that as a boundary, not a blank check.

Pricing, by the way, can also be a trap. KYB Excel-G units typically run anywhere from around $55 to $120 per corner, depending on the vehicle (source: supplier quotes, January 2025; verify current pricing). The lowest online price often isn't the lowest total cost. Add in shipping, the shop's labor, an alignment, and the risk of paying for the job twice if the part is a dud. A cheap part that fails in six months is way more expensive than a known-good part installed once.

Honestly, if you're here because of a deadline and a vehicle on a lift, the most important thing I've learned is this: get the right part the first time. The value of guaranteed turnaround is not speed—it is certainty. KYB gives me that for most OE-replacement shock work. But the certainty only works if the part number is verified, the hardware is new, and the charging and fuel system is not giving you a second surprise.