I don't know if i'm posting this in the right area, if i'm not please move. THX

I'm posting this due to the lack of information and the quantity of posts concerning RB20DET OEM Piston rings. Other than whats available on ebay for $350 the only other place the USED to sell them for a decent price was compulsive horse power. I don't know if they went out of business or what but their web page dosent work any more. So I pulled up a cached web page of theirs that had the hastings piston rings for the RB20DET with all the specs and contacted hastings directly (http://www.hastingsmfg.com/) and this was their responce...

"Good Morning Charles--I have a set of rings originally designed for the Nissan 2.0L 1998cc VG20E engine that seems to also be a match for the RB20DET----78mm 1.5, 1.5, 2.8 3 pc oil assembly---the set with a cast iron top ring is set # 6240 and is $132.14 + shipping, or we also have a set with a chrome top ring -part # 2C6240 and is $176.43 + shipping. Each set is for the full 6 cylinders and shipping is $7.50 for UPS Ground - but if you need next day air we can provide that as well, customer pays shipping charges in all cases. Now -- before purchasing-- I would be sure to verify the groove depths to ensure that the rings are not too deep ---the top groove needs to be at least .126 deep, the 2nd groove needs to be at least .155 deep and the oil groove needs to be at least .125 deep to ensure proper fit. We do carry each set and try to have stock at all times, and I show we have stock on both sets. Also- for your information--we carry each set in STD, and 010, .020, .030 and .040 oversizes. To place an order call 1-800-776-1088 #2. If you have any other questions, feel free to contact me again anytime!Thank You for choosing Hastings---have a great day! Lisa"

So good news for anyone in search of piston rings for the RB20DET. I hope this was helpfull.

Also Hastings has just informed me that they have now added These rings to there catalog.
Modified by smitty4130 at 1:21 PM 1/22/2009

I purchase 2 sets of piston rings for my RB20DET from www saxajdm.com. Price is very low compared to other vendors. Piston rings made by RIK Japan so very good quality as well.

Link below:
https://www.saxajdm.com/Nissan-RB20DE-R ... p427654287