Spark Plugs

[wyatta4]

Alright, so I have spark plugs for a 1991 Crx but I ended up not needing them. Now my 1994 civic needs plugs, can I use the ones from the crx on my civic? Are they compatible?

Thanks for any help.

[Joenavy85]

my '97 Del Sol had a label under the hood with Info on the A/C, emissions, and spark plug size, I would assume your civic would have it too.

NOTE: by spark plug size I'm talking about thread size and the gap

[wyatta4]

Ya I cant find a label saying anything of the sort....

[Joenavy85]

i would say check online for the plug specs for that particular engine, and see if they match the plugs that you have.

[Ryland]

They need to have the same thread size, reach, heat range and some have variations that you need to match up.
Your Civic EX takes NGK plug number ZFR5J-11

Your CRX HF takes NGK plug number BCPR5E-11

http://www.ngksparkplugs.com/techinf...tnumberkey.pdf

Judging from that plug number decoding... they will not work well even if they did fit.

[ghnj12]

If you can't find the specs on the car, either due to age or just not there, there is usually manuals available online. A lot of people lose those manuals or spec sheets. You should be able to find it very easily. Have you thought about looking at www.acdcind.com for additional info?

[cfguy2000]

RockAuto Auto Parts

It will do a reverse lookup on any part and tell you which other cars it fits. Plus they are usually the cheapest for parts.

[graydonengineering]

I just ordered some NGK platnums off sparkplugs.com for less than $20 for 4 including shipping. Hard to beat that for heigh quality plugs like those. The site shows you virtually evey plug you can buy for your particular car.