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DXA4178

OEX Alternator 12V 100A Denso Style - See Note DXA4178

OEX Alternator 12V 100A Denso Style - See Note DXA4178

$644.00
$644.00 $889.00
Tax included. Shipping calculated at checkout.

Description

OEX Alternator 12V 100A Denso Style – DXA4178

The OEX Alternator DXA4178 is a reliable 12V, 100-amp Denso-style alternator designed as a direct OE replacement. Built for stable and efficient charging performance, this unit is suitable for vehicles requiring consistent electrical output under standard driving conditions.

Manufactured using high-quality components and built under ISO-certified production standards, this alternator delivers dependable performance, long service life, and strong durability for both passenger and light commercial applications.

Key Features

  • 100A charging output – ideal for standard vehicle electrical systems
  • Denso-style design – direct OE replacement fitment
  • Internal voltage regulator for stable charging performance
  • Twin-leg mount configuration for correct fitment
  • 6-groove pulley system (application dependent)
  • Brand new unit – not remanufactured
  • 3-year passenger / 1-year commercial warranty
  • Important note: Two similar variants may exist – always confirm by part number and OE specifications before purchase

Specifications

  • Voltage: 12V
  • Output: 100 Amp
  • Suits Unit Make: Denso Style
  • Regulator Type: Internal
  • Pulley Section: 6 Groove
  • Pulley Diameter: 55mm
  • Mount Type: Twin Leg
  • Mount Centres: 173mm
  • Pivot Hole Diameter: M10 x 1.25
  • Adjusting Hole Diameter: M8 x 1.25
  • Pin Code: IR228
  • Unit Type: New
  • Part Number: DXA4178

Vehicle Applications

Commonly fitted to:

  • Toyota Corolla (selected 2014–2019 models)
  • Toyota iQ (selected 2009–2015 models)
  • Various 12V 100A Denso-style OE applications

(Always confirm compatibility using DXA4178 and your vehicle’s original alternator specifications before purchase.)

Performance & Reliability

The DXA4178 alternator is engineered to support essential vehicle electrical systems including ignition, lighting, air conditioning, and infotainment systems.

Its 100A output ensures stable battery charging and reliable performance under everyday driving conditions, making it a dependable replacement for worn OE units.

Why Choose OEX?

  • Trusted aftermarket brand across Australia & New Zealand
  • Designed for OE-level fitment and performance
  • Manufactured in ISO-certified facilities for consistent quality
  • Built for passenger, SUV, and light commercial use
  • Backed by strong nationwide warranty support

Shipping

Every order at TINKR promises fast shipping to your door, anywhere in New Zealand. Within 1-3 business days. Courier pickups Monday - Friday. Excluding public holidays.

Our standard delivery requires a signature upon receipt, however type any delivery instructions in the box provided during the TINKR check out on how you want your order delivered. For example, No signature required or leave on front porch etc.

How fast is Tinkr's Shipping?

While it is possible for many Auckland orders to be delivered the same day, delivery estimates are; North Island - Overnight. South Island and Rural - extra 1-2 days

FAQs

See All

What payment methods can I use?

We can take payment from most major credit cards - like Visa and Mastercard. We can also offer AfterPay and manual bank transfer.

Are the auto parts on your website genuine?

We only partner with leading global manufacturers and suppliers to ensure our customers get the best product AND price.

Do you offer warranties on your auto parts?

We do offer warranties on most parts! Refer to the individual part information or speak to a member of our team to learn more.

Customer Reviews

  • Thank you - so quick in delivery with my order. I was expecting at least another 3-4 days to arrive. Great website easy to order with the illustrations, saving a lot of guess work when choosing your items. Well done!
    testimonial author avatar
    William
  • We got the part shipped within a day all the way down to the West Coast! I accidentally ordered the wrong article and they helped me out and replaced it straight away. You guys are awesome!
    testimonial author avatar
    Anna
  • Chuck & Greg from Tinkr were very helpful finding the correct auto transmission filter kit for us, fast & efficient, overnight delivery at a very reasonable price $127, both Repco & Supercheap quoted $439. This is first time we have dealt with Tinkr Limited and we would not hesitate to purchase from them again. Thanks for the fantastic service!
    testimonial author avatar
    Del
  • I have made multiple purchases from this company, and their service consistently exceeds my expectations. Last week, I urgently needed some parts and, based on my previous positive experiences, I chose TINKR once again. As expected, their service was exceptional. A special thanks to Greg at TINKR for a job well done.
    testimonial author avatar
    Gary
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We Solve The Auto Parts Challenges Others Can't

TINKR is your most comprehensive New Zealand owned auto parts store. With over 150,000 car parts, accessories & tools, to suit a huge range of passenger cars, 4x4s and commercial vehicles. Whether you're after a cambelt, a fan belt, or a seat belt, for a Toyota Corolla, a Mitsubishi Lancer, or a trusty Mazda Familia - TINKR has it covered.

OEX Alternator 12V 100A Denso Style - See Note DXA4178

OEX Alternator 12V 100A Denso Style - See Note DXA4178

$644.00
$644.00 $889.00