2004 Kia Optima Engine Timing Belt Component Kit 4 Cyl 2.4L Dayco

★★★★☆ 4.5/5 24 ratings
Includes: Camshaft Belt Tensioner Pulley, Balance Shaft Tensioner, Camshaft Belt Idler (Hydraulic Actuator not Included)
Interference Engine

This item ships quickly from our Canadian warehouse network, giving you faster delivery times and no cross-border delays. Our system automatically selects the closest warehouse to your shipping address that has the item in stock, ensuring the fastest possible turnaround. Thanks to our nationwide distribution network, most ground-shipped orders arrive within 2–3 business days.

We continuously work to expand and refine our product information, and additional details will be added as they become available. If you need help choosing the right part or want guidance before ordering, our Canadian support team is always ready to assist.

This Part Fits the Following OEM/Substitute Numbers:
84129
1 In Stock
Best Price:
$103.06 CAD $123.67 CAD
BrandDayco
Part #D3584129
ConditionNew
WarehouseB
Optima Dayco Engine Timing Belt Component Kit 2004 Kia
Additional Fitment Information:
Vehicle Engine CC CID Block Type
2004 Kia Optima 4 Cyl 2.4L 2351 - L
  • Includes: Camshaft Belt Tensioner Pulley, Balance Shaft Tensioner, Camshaft Belt Idler (Hydraulic Actuator not Included)
    Interference Engine
Dayco is an industry and global leader in auto parts manufacturing industry and has been in the business since 1905, 100 years! Dayco makes replacement auto parts for the automotive aftermarket that keep vehicles moving, including belts, automatic belt tensioners, hoses, pulleys, timing products and more. Dayco goes to be the first to market on these parts by providing innovative, quality products.
Some of Dayco's most popular products are their custom fit, molded radiator hoses and heater hoses, their great array of premium belts, including the poly ribbed belts, v-ribbed belts, standard setting v-belts, and timing belts, as well as the ever popular timing belt kits that include all the parts needed to do a complete timing job on your vehicle's engine.


Dayco is an industry and global leader in auto parts manufacturing industry and has been in the business since 1905, 100 years! Dayco makes replacement auto parts for the automotive aftermarket that keep vehicles moving, including belts, automatic belt tensioners, hoses, pulleys, timing products and more. Dayco goes to be the first to market on these parts by providing innovative, quality products.
Some of Dayco's most popular products are their custom fit, molded radiator hoses and heater hoses, their great array of premium belts, including the poly ribbed belts, v-ribbed belts, standard setting v-belts, and timing belts, as well as the ever popular timing belt kits that include all the parts needed to do a complete timing job on your vehicle's engine.


This item ships quickly from our Canadian warehouse network, giving you faster delivery times and no cross-border delays. Our system automatically selects the closest warehouse to your shipping address that has the item in stock, ensuring the fastest possible turnaround. Thanks to our nationwide distribution network, most ground-shipped orders arrive within 2–3 business days.

We continuously work to expand and refine our product information, and additional details will be added as they become available. If you need help choosing the right part or want guidance before ordering, our Canadian support team is always ready to assist.

Information on technical characteristics, the delivery set, the country of manufacture and the appearance of the goods is for reference only and is based on the latest information available at the time of publication.
  1. bryan
    07 Apr, 2015
    So far so good. Good quality, great price, easy to install, instructions are very helpful. Only negative is the extra work you have to put in to get to the timing belt other than that its not bad
  2. DEF_AutoPartsWAY
    26 Mar, 2015
    Perfect fit and function on all parts. I've installed the Dayco timing belt/water pump kits in a number of cars, and they've all been great. This one is no exception. If you need to cross-reference, Dayco has a great website, including Android (and iOS?) app, so you always know you're ordering the right part or kit for your vehicle.
  3. Josh Murphy
    19 Mar, 2015
    My engine timing is now precise thanks to Dayco 95232K3 Timing Belt.
  4. Mahmoud Abdolhosseini
    28 Feb, 2015
    good
  5. Angelocc
    21 Jan, 2015
    no complaints. did its job
  6. Cesar
    30 Nov, 2014
    good
  7. DANIEL GIL FUENTES
    17 Nov, 2014
    Excelente producto.
  8. JimV
    03 Nov, 2014
    A well made kit that fit and worked as it should. Of all the timing belts I've done, this was one of the easier ones.
  9. keith wells
    06 Sep, 2014
    Excellent
  10. Andrew M Griffin
    18 Aug, 2014
    Fit well, it was cheap and it came to me fast. Can't ask for anymore.
  11. John Guzman
    02 Aug, 2014
    This product contained everything I needed for my 1999 Mazda Protege. I highly recommend this product since its from a great manufacture.
  12. Keith
    30 Jul, 2014
    Great quality, I wouldn't hesitate to purchase again.
  13. aimee
    08 Feb, 2014
    thank you so much and ill say it again and again, saved my car and my wallet. my car runs like a charm now.
  14. kennyc
    18 Dec, 2013
    Used the kit on my 2001 Honda Odyssey. Belt is high quality (made in Italy which I thought was odd) and the fit was perfect. I'm confident everything will last just as long as OEM. Bearings in the kit are fine, but they weren't Timco. Timco is the OEM. The Gates kits I've used in the past have Timco bearings. I would pay the extra few dollars and go with Gates if I were to do it over again. Just a preference thing though. Dayco makes fine products and there was nothing wrong with the bearings (KMB I believe).This kit does not come with a tensioner. I would highly suggest replacing the hydralic tensioner when you do the timing belt. You are hosed if it fails. It likely won't fail (the one I replaced looked fine and worked normally), but it's a lot cheaper than a replacing valves. Think of it as insurance. Nibco is the OEM for the tensioner.BTW - don't even think about doing this job on the Honda 3.5 V6 (J35A4 is in my 2001 Odyssey) unless you know...
  15. W. M. VAN DAM "WMvanDam"
    04 Oct, 2013
    belt and bearings were from excellent quality comparable with the oem parts i took off. What really turned me upset were the included instructions. Saying lining up from the crankshaft to the sprocket with the edge and then to the sprocket without the edge. don't do it like that because the marks are wrong!! tried it 4 times like that! Belt needs to be aligned with the 3 arrows connected as dots, align it with the dot on the crankshaft and then it will all line up correctly.
  16. Anthony Porter "S1R"
    03 Sep, 2013
    I received the product as I asked but the kit is supposed to come with a belt. I ordered once and go ONLY the pulleys. I called AutoPartsWAY and they said they would ship another making sure it had the belt and I waited for the order.... Received the same thing again then got charged for it after I emailed them saying I am waiting for the belt...I would order from these guys, The product is good but I don't know what's going on with the middle man or what not but I would just order from someone else.
  17. A. Ross
    13 Jun, 2013
    I've used this kit in the past-- only one that includes the tensioner spring. The Beck Arnley kit doesn't include it. Great kit for the price, certainly better than buying each item separately. I had to change my water pump again (junk A1 Cardone water pump failed for second time) so hence the second time using the kit. If you have a Protege and are doing the water pump and timing belt, use this kit and either the OEM water pump or water pump from Beck Arnley. Thanks AutoPartsWAY for having the parts I needed.
  18. Bill
    19 Apr, 2013
    This kit contained all the parts I needed to do the job. I was glad it did too. I would of had to stop and order more parts in the middle of the job. Everything in the kit fit perfectly. The job went a lot smoother for me because of this kit. The price was right and the parts are good. I am glad I found this at AutoPartsWAY. I would recommend this kit to a friend.
  19. Kevin V. Tran "Happymotto"
    06 Feb, 2013
    Great product, work out perfect, Excellent item and price super low, highly recommend any time, exact fit right from start.
  20. William Hild
    10 Jan, 2013
    I had this kit professionally installed at a local garage and there were no issues. This Dayco Kit worked perfectly.
  21. Patricia C. Allen "PCA - mom of 6"
    12 Dec, 2012
    Very reliable quality. Trusted brand. My mechanic was very pleased with this choice vs what was offered at local autoparts store.
  22. lucy
    17 Feb, 2012
    This was so much cheaper than our local stores. Thanks for saving us money!! In this economy we try to save all we can and this was exactly what we needed.
  23. Nick Copernicus
    10 Nov, 2011
    The description and pictures associated with this item seems to indicate that the timing belt is included. Be aware, the timing belt is not included!
  24. James D. Lyne "Bondo"
    07 Nov, 2011
    I initially ordered the "timing belt comp kit" which turned out not to have a timing belt in it, pulleys only. AutoPartsWAY sent out this belt, free of charge.

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