It's one of the most common conversations we have with new customers at JH Performance Studio. They come in with a recurring fault — a brake component, a clutch part, a suspension bushing — that was replaced elsewhere just months ago. When we inspect it, the part fitted is unbranded, or branded with a convincing box around a non-OEM component.
This is the duplicate parts problem in Ranchi, and it's widespread. This guide explains exactly what OEM means, how to tell the difference, and why JH Performance Studio's commitment to genuine parts protects your car's long-term reliability.
What Does OEM Actually Mean?
OEM stands for Original Equipment Manufacturer. These are the companies that supply components directly to car manufacturers for assembly on the production line. The Bosch fuel injector in your Audi was made by Bosch. The LUK clutch in your VW was made by LUK. These companies are the OEM suppliers.
When you buy a genuine part through a dealer or a specialist workshop, you're getting a component from the same supplier, built to the same specification. When you buy a duplicate, you're getting a component that may look identical but is manufactured to a lower standard with cheaper materials.
| Category | OEM / Genuine | Duplicate / Cheap Aftermarket |
|---|---|---|
| Manufacturing spec | Exact OEM tolerance | Often ±10–20% off-spec |
| Material quality | Tested to OEM standard | Variable, often cheaper alloys |
| Lifespan | As engineered (3–7 years) | Often 6–18 months |
| Fitment | Precise, no modification needed | May require forcing/adaptation |
| Long-term cost | Lower — fitted once | Higher — repeated replacement |
OEM Brands We Use at JH Performance Studio
Every repair and service at JH Performance Studio uses parts from certified OEM and tier-1 suppliers. Here's the brand behind each major component category:
- LUK — clutch kits, dual mass flywheels (OEM supplier to VW, BMW, Mercedes)
- Sachs — shock absorbers, clutch components (OEM supplier to BMW, Audi, Mercedes)
- Bosch — fuel injectors, spark plugs, ignition, brake components, sensors
- Brembo — brake discs and pads for performance applications
- Bilstein — suspension dampers and performance shock absorbers
- Continental / INA — timing belts, tensioners, serpentine belts
- Mann Filter — oil, air, fuel and pollen filters
- SKF — wheel bearings, driveshaft components
- Lemförder — steering and suspension links (OEM to VW Group)
- NGK — spark plugs and oxygen sensors
- Victor Reinz / Elring — gaskets and sealing solutions
- Febi Bilstein — chassis and drivetrain components
- Liqui Moly / Motul / Ravenol — engine oils and fluids to exact OEM specifications
Book a Service with Genuine OEM Parts
Every repair at JH Performance Studio uses certified OEM or genuine-quality parts. No duplicates. No compromises. Call 7909019377.