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Genuine (OEM) vs OES vs Aftermarket Car Parts: Price, Quality, Warranty and Which Part Needs Which

By Shivam Kumar (@visionquantech) · · 6 min read

Quick answer: Genuine (OEM) parts come in the car brand's box. OES parts are made by the same supplier that makes the part for the brand, sold in the supplier's own box, often for less. Aftermarket parts are made by other companies to fit your car, with quality ranging from very good to poor. For brakes, steering and suspension, stick to genuine or OES. For many wear items on an older car, a reputable aftermarket brand can be sensible. Counterfeit parts are never an option.

At Autoport, Desai Naka, we quote the part options and their prices before fitting, and you choose.

Car problem in Dombivli, Kalyan or Thane? Call or WhatsApp Autoport, open 24x7 at Desai Naka.

The three types side by side

Genuine (OEM)OESAftermarket
Who makes itSupplier, packed for the car brandSame supplier, own brand boxIndependent manufacturers
BoxCar brand logoSupplier logoAftermarket brand
PriceHighestUsually lower than genuineWidest range, often lowest
FitExactExact (same part)Usually good; varies by brand
QualityBrand-specifiedSame spec as genuine in most casesVaries a lot
WarrantyPart warranty via brandSupplier warrantyMaker warranty, if any
AvailabilityBrand dealersParts marketWidely available

Which parts should never be cheap

PartOur adviceWhy
Brake pads, discs, fluidGenuine or OESStopping distance and heat fade
Steering parts (tie-rods, racks)Genuine or OESLoss of control if they fail
Suspension arms, ball jointsGenuine or OESSafety and alignment
TyresReputed brand, correct size and load ratingGrip, especially in monsoon
CNG kit partsCertified parts onlyGas leak risk
Filters, wiper blades, bulbsReputed aftermarket is often fineLow risk, easy to check
Body panels, mirrorsAftermarket fine on old cars; genuine for fit on new carsFit and paint finish
Engine oilGrade and spec from the manual; brand is your choiceSpec matters more than label

Price vs value: how to decide

Think in cost per kilometre, not price per part. A cheap brake pad that lasts half as long and wears the disc is not cheaper. For a new car, genuine or OES parts keep fit and resale value. For an older car, especially one you plan to keep only a year or two, a quality aftermarket part for non-safety items can be good value. SUVs are heavier, so brakes and suspension parts work harder; do not downgrade them. EVs and hybrids have many brand-only parts; check availability before choosing.

Insurance claims: depreciation is deducted on parts unless you have zero-dep cover, and insurers typically approve genuine parts for claim repairs. Ask your insurer if unsure.

How to spot fake or "duplicate" parts

  • Packaging: poor printing, spelling errors, missing part number or hologram.
  • Price: much cheaper than the market for a "genuine" part is a warning.
  • Finish and weight: rough castings, light weight, missing markings on the part itself.
  • Bill: ask for an invoice with part number and brand.
  • Old part: ask to see the old part removed, and the new part's box before fitting.

Summer heat and monsoon water both expose weak parts quickly: rubber hoses crack, cheap wiring corrodes.

Myths vs facts

MythFact
Aftermarket always means low qualitySome aftermarket brands are excellent; others are not
OES is a copyOES is usually the same part the brand fits, in a different box
Genuine is always worth the extraFor low-risk items on older cars, not always
You cannot choose parts at a garageYou can and should ask for options

Questions to ask before a part is fitted

  1. Is this genuine, OES or aftermarket? Which brand?
  2. What is the price of each option?
  3. What warranty does the part carry, and who honours it?
  4. Can I see the box before fitting and the old part after?
  5. Will the bill show the part number?

Service prices (parts at actuals)

These are starting prices from our online booking catalog. Your exact car, fuel and variant decide the listed price, which you see in the booking form before you confirm.

ServiceStarting price
Basic ServiceStarting ₹1,859
Standard ServiceStarting ₹2,589
Premium ServiceStarting ₹4,869
Brake, suspension, clutch and electrical parts (by option chosen)Inspection ke baad quote

For example, the listed Basic Service price is Swift petrol ₹2,099, Creta petrol ₹2,499, Nexon petrol ₹2,179, Wagon R CNG ₹2,249. Spare parts are billed at actuals. Anything outside a package, such as brake pads, a clutch kit or suspension parts, is inspection ke baad quote: we check the car, explain the problem and the estimate, and start only after you say yes.

What the service packages include

  • Basic Service (about 1 hour): engine oil and oil filter change, air and AC filter cleaning, a 25-point general check-up, and top-up of brake oil, coolant and battery water.
  • Standard Service: semi-synthetic engine oil, oil and air filter, spark plug / glow plug check, brake cleaning, exterior wash, interior vacuum and polish.
  • Premium Service: synthetic oil, all filters, spark plugs, car scanning, AC check-up, wheel alignment and balancing, wash and polish.

Your owner's manual decides the interval; we follow it.

How booking works from Dombivli, Kalyan or Thane

  1. Call or WhatsApp +91 72080 15250, or book online at book.autoport.co.in. Online, you choose the car, the service, the date and a slot. Nothing is paid online.
  2. Tell us the symptom in your own words, Hindi, Marathi or English sab chalega. Tell us if you prefer genuine parts, or want options quoted.
  3. Bring the car to Desai Naka, opposite Croma (SK Plaza) on Kalyan-Shilphata Road. The workshop is open 24x7, so a late-night drop after office is fine; call ahead so someone is ready for your car. If you need it, ask whether pick-up and drop can be arranged for your slot.
  4. Inspection and estimate. For a package, you already know the listed price. For a repair, we inspect first, then tell you what is wrong, what is urgent and what can wait, with the estimate. Extra work is done only after your approval.
  5. Collect and pay at the workshop after the job. Old parts can be shown to you on request.

Autoport India Pvt Ltd: address, phone and hours

Autoport India Pvt Ltd, Plot 140/1, Desai Naka, Opp. Croma (SK Plaza), Kalyan-Shilphata Road, Sagarli Gaon, Dombivli East, Thane, Maharashtra 421204. Please note: this is the Croma at Desai Naka on Kalyan-Shilphata Road, not the Croma on Manpada Road.

Map showing Autoport India Pvt Ltd at Desai Naka on Kalyan-Shilphata Road, Dombivli East

Get directions to Autoport on Google Maps

More guides for Dombivli, Kalyan or Thane

Ready to book? Driving from Dombivli, Kalyan or Thane to Desai Naka, opposite Croma (SK Plaza).

FAQs

What is the difference between OEM and OES parts?

OEM (genuine) parts come in the car brand's box. OES parts are usually made by the same supplier but sold in the supplier's box, often cheaper.

Are aftermarket parts safe?

Reputed aftermarket brands are fine for many items. For brakes, steering and suspension, genuine or OES is the safer choice.

Can I bring my own parts to Autoport?

Call first. We can advise, but we cannot vouch for parts we did not source.

Do aftermarket parts affect warranty?

For a car under manufacturer warranty, a failure caused by a non-specified part may not be covered. Check your booklet.

Where is Autoport?

Desai Naka, opposite Croma (SK Plaza), Kalyan-Shilphata Road, Dombivli East 421204. Open 24x7, +91 72080 15250.

Written by Shivam Kumar (@visionquantech) for Autoport India Pvt Ltd. Published 10 Nov 2026. General guidance only — your car's owner's manual and an in-person inspection come first.

Written by Shivam Kumar (@visionquantech), CTO, Autoport India Pvt Ltd. Autoport was founded by Sunil Kumar Soni and co-founded by Kiran Soni. CFO: Raj Soni.

Follow Autoport: Instagram @autoportindiapvtltd · Facebook · YouTube · Google Business Profile · Justdial

Visit Autoport

Autoport India Pvt Ltd
Plot 140/1, Desai Naka, Opp. Croma, Kalyan-Shilphata Rd, Sagarli Gaon, Dombivli (E), Thane 421204

+91 72080 15250 · Open 24x7 (Mon–Sun)

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