113-0312-40 +.040 Oversize ring set N Series

One ring set required per piston.

Measure Your Original Parts Prior To Placing An Order.

For Gas Engines Only

113-0312-40 +.040" Oversize Ring Set For Early "N" Series engines with 3 9/16 or 3.560 Bore.
N52M Spec "A" only. NHA, NHB Spec A-C only. NHC, NHCV Spec A-C only. All NHP, NHPV, NH & NB.


The ring thickness is as follows:

Top: 3/32 or .093" or 2.3 MM

Second: 3/32 or .093" or 2.3 MM

Oil ring: 3/16 or .186" or 4.75 MM

Part Number 113-0312-40 Supersedes/Replaces the following part numbers:

113A165-40, 113-0165-40, 113-0166-40, 113A142-40, 113-0142-40 & 113-0202-40

Models listed are for general reference only and do not guarantee this part will fit your specific application.

Checking the correct parts manual and comparing the old part to the new one if pictured is the buyers responsibility, not ours. Once placed, all sales are final.

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IF ITEM SHOWS SOLD OUT, Please CONTACT US for availability and/or back order status. We get busy at times, if a part is listed as sold out please inquire about it as our website may not reflect current stocking levels.