Hyundai H100 Relays
We source relays for every H100 generation sold in South Africa, then check the fit against your VIN before it leaves the warehouse
What Are Hyundai H100 Relays?
A relay lets a small signal from the ECU or ignition switch a much larger current — fuel pump, cooling fan, starter, headlamps. The Hyundai-specific catch is that the relay list is not the same across a model: the CRDi diesels carry a glow-plug relay that no Kappa or Gamma petrol car has, and air-conditioned derivatives add relays that the base cars simply do not fit. That is why a relay layout for a 1.4 petrol i20 tells you very little about a 1.6 CRDi. Work off the diagram on the underside of your own fuse-box lid, and send us the engine code with the enquiry.
Signs You Need New Relays
What a parts desk needs to know about your H100
What changes across the range
Sold here across Porter, Porter II and the H100 bakkie, the H100 is not one car for parts purposes — it is several.
Dropside, tipper and canopy conversions mean the load body is frequently not standard, so load-bed and rear-body parts have to be matched to the conversion rather than to the model.
Worth knowing: the H100no Kia equivalent — a dedicated light-commercial cab-over platform.
What we check on relays
- •The generation code, because H100 parts lists split on it
- •The engine family — this H100 was sold with the 2.5 and 2.6 diesels as badged on the SA derivatives
- •The VIN, and the fault code if the car has been scanned
- •Whether the car is pre- or post-facelift within its generation
In South Africa the H100 is mostly small-business transport that is loaded to its limit daily, which is why clutch, driveline and front-suspension parts dominate demand rather than trim or electronics. That is the wear pattern we stock and source against.
H100 Relays: Common Questions
Will relays from another H100 fit mine?
Not automatically. The H100 sold in South Africa as Porter, Porter II and the H100 bakkie, and dropside, tipper and canopy conversions mean the load body is frequently not standard, so load-bed and rear-body parts have to be matched to the conversion rather than to the model. Send us the generation code off your VIN plate and we will confirm it either way before anything is dispatched.
Can you source relays for the H100 if local stock is dry?
Usually, yes. The H100 no Kia equivalent — a dedicated light-commercial cab-over platform, which gives us a second catalogue to search when Hyundai-listed stock runs out. We will tell you what we are quoting rather than leaving you to guess.
Does my Hyundai have a glow plug relay?
Only if it is a CRDi diesel. That is the single biggest difference between the relay layout on a diesel and a petrol Hyundai — the Kappa and Gamma petrol cars have no glow plugs and therefore no glow plug relay at all. If a diesel is hard to start cold, that relay is the first place to look.
What does a failing relay do on a Hyundai?
The pattern we see most is a no-start with the fuel pump silent, a loud click from the fuse box, cooling fans stuck permanently on or off, or an electrical fault that comes and goes with no obvious trigger. Intermittent is the word that most often means relay.
What does a Hyundai relay cost to replace?
Get a free quote through our form for exact pricing on your model. Most common Hyundai relays are inexpensive parts; the bigger variable is diagnosis time to work out which one has failed, since several sit in the same engine bay fuse box and look identical.
The starter relay clicks but the car will not crank. Is the relay dead?
Not necessarily, and this is worth checking before you buy anything. A click without crank means the relay is energising but not passing enough current to the starter solenoid — and a tired battery mimics that exactly. We check battery voltage under load and the earth straps before condemning the relay.
How do I find and test a relay on my Hyundai?
Work off the diagram on the underside of your own fuse-box lid rather than a diagram from the internet, because air-conditioned and non-air-conditioned derivatives fit different relays and facelift cars occasionally moved a slot. To test, swap it with an identical relay of the same rating from a non-critical circuit such as the horn and see whether the fault follows.
Learn More About Hyundai H100 Relays
Find an RMI-accredited Hyundai workshop in your area for diagnosis and repair.
General motoring advice and roadside assistance for SA Hyundai owners.
UK owner reports on Hyundai electrical and relay-related faults by model.
Tell us which H100 you have
The H100 sold here as Porter, Porter II and the H100 bakkie, and they do not share one parts list. Give us the generation code and we will do the rest.