GM products run best with AC Delco plugs, just like Ford products run best with Motorcraft or Autolite.
Pros: best performance
Reviews of AC DELCO parts For Business
Average Rating
?
The manufacturer's average rating is calculated based on ratings of all its spare parts. It determines the place in the manufacturer ranking
3.5
Manufacturer Ranking
#141
191
Spare Parts
28
Country
USA
Website
acdelco.com
Spare Parts
Comparisons
I did put ac delco factory iridium plugs from rockauto on mine at 100k.
Pros: factory iridium plugs
Vehicle:
Chevrolet Malibu
Mileage: 100000 km
The old battery I had in mine was an AC Delco, model ACD41-60 (I'm guessing size 41, 60-month warranty). Sticker said 685 CCA, 330 for charge. It's raining outside right now and I don't have any pictures of the sticker for my current one. The Delco battery finally died after being 8 years old. It showed signs of aging and being weak for about 3 months before that, and then one of the cells shorted out, so it had about a 5-amp capacity.
Pros: long life, high CCA
Cons: showed signs of aging
Part number: ACD41-60
In our shop we have found that the professional line of AC-Delco batteries seem to last the longest. I believe if you check the AC-Delco was what was installed at the factory in your Suzuki, and that lasted 7 years.
Pros: long lasting, reliable
Vehicle:
Suzuki XL7
I'm a big fan of AC Delco batteries. Every one I've had has outlived the cars I've put them in.
Pros: long lasting, reliable
While I had the coils out, I replaced the plugs (used ACDelco double platinum professional grade, proper gap. No NGKs were available). After I replaced the coils, the misfire code(s) went away for a few days.
Pros: misfire codes went away
Cons: misfire codes returned
Vehicle:
Volkswagen Passat B6
Mileage: 40000 km
But the best OEM batteries are definitely AC Delco, the GM ones. Routinely replaced them at 6-8 years, longest I ever saw was the original battery of a 97 Grand Prix that I replaced in early 2008.
Pros: long lasting
So I went to my uncle who is a part owner of a auto parts supply company and he ordered me 5 Beck Arnley 178-8445 Direct Ignition Coils for my car and 5 ACDelco 41-806 Professional Platinum Spark plugs.
Cons: spark plugs were cheap
Part number: 41-806
Another good way to tell your alternator is going is the battery light illumination. I noticed as I drove to higher RPM's, used the vents or even used windows with more power gave more illumination of the battery light. Tested the alternator at a shop and found it to be weak, battery was fine.
Pros: battery light illumination
Cons: alternator weak, defective parts
Mileage: 2500 km
Put them into a stock '87 Subarban and tore my hair out thinking I messed up the wires 'cause it idled so bad. Really, like I had two wires switched. Put the old worn regular AC's that I just took out and it idled perfect.
Cons: bad idle, rough running
Vehicle:
Chevrolet Suburban
Write your review
Help others - share your experience with this part.
Voted AGAINST engine oil RAVENOL on the rating page
The brake pads NIPPARTS got the first review!
The brake discs Hella got the first review!
The brake discs OEM Suzuki got the first review!
For tires OEM Toyota already 25 reviews.
For tires IRONMAN already 25 reviews.
For starter motor OEM Volkswagen already 25 reviews.
In the rating best ignition coil already 13 brands participate!
In the rating best fuel pump already 5 brands participate!
In the rating best turbocharger already 4 brands participate!
In the auto rating headlights for Volkswagen Golf already 5 brands participate!
In the auto rating brake pads for Mazda 5 already 10 brands participate!
In the auto rating brake pads for BMW M2 already 5 brands participate!
Voted AGAINST engine oil RED LINE on the rating page
Voted AGAINST engine oil PENNZOIL on the rating page
