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88 V-6 Power Pulley Kits $116.99


88 V-6 Underdrive Power Pulley Kits

Add an underdrive power pulley kit to your 1988 V-6 Fiero. This kit includes the idler pulley, smaller (smaller than OEM) hard anodized aluminum crank pulley and the two shorter belts. Easy to bolt on. Adding this power pulley kit reduces the speed of the alternator, water pump and A/C compressor. It eliminates the need to over tighten the alternator to stop belt slippage and squealing when ordered with the idler. Reducing the speed of the water pump and alternator is OK on an 88 V-6 Fiero. The alternator will still put out plenty of amperage and the water pump will still be sufficient for cooling. This frees up some horsepower.

The biggest advantage I found when using an underdrive pulley system on my 2.8 V-6 was a very noticeable reduction of drag on the engine when using the A/C.  By turning the A/C compressor slower it takes much less horsepower to run the A/C and the A/C is still more than sufficient to cool the cabin of a Fiero. This kit can also be used on 1988 Fiero V-6's with out A/C.

 88 Power Pulley Kit With A/C    88 Power Pulley Kit With A/C And Idler

For those who do not want the idler I sell the kit without the idler.

If you want to retain the alternator output on your 88 V-6 for a large stereo system or such:  To retain the output of the alternator you may use the power pulley kit that I offer for the 85-87. This kit includes a smaller alternator pulley and includes the idler pulley. This 85-87 power pulley/idler system retains approximately the same alternator output but reduces the water pump and A/C. Click here to see this under drive pulley system.



Replacement parts:

Idler pulley - Dayco 89007 or equivalent

Power pulley serpentine belt - Dayco 5050440 or equivalent

A/C V-belt - Dayco 15365 or equivalent



Also consider adding my steel alternator reinforcement plate to reduce breakage of the cast aluminum alternator bracket.

Offered in 4 variations:  

  • With or without the idler 
  • With or without A/C.


Note: I have seldom sold a kit with out the idler pulley. So if you order this without the idler you will only receive the small diameter crank pulley and the 4 allen head bolts. You will need to get your own Dayco 5050385 belt. I will not stock this belt because I seldom have sold a kit without the idler.




I do not offer free shipping.

Because I use postal flat rate boxes for heavy orders there is no program that can add the proper amount of shipping to every order. So all shipping is added manually by myself after you place your order. That is explained here: Shipping added later explanation 

When you place an order the shipping amount will show $0.00. Soon after you place an order you will receive an email confirmation that shows the amount of shipping that was added to your order.



Shipping:     Shipping is approximately $12.00.   (Midwest-USA)

Final shipping cost is determined by weight of the item(s) and distance from Milwaukee, WI. Shipping prices quoted are for items shipped to the Midwest area in the USA. If you are ordering a single item or multiple items the total shipping price is determined after you place the order. I try to keep my shipping prices to a minimum and use Postal Flat Rate boxes whenever I can utilize them for an order.


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Current Reviews: 1
This product was updated on Tuesday 12 February, 2019.
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88 V-6 Power Pulley Kits
I ordered and installed the power pulley kit 4 the V6 with a ..
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