Enginetech S93116-STD is a premium standard bore piston ring set for 1995-2006 Chevy, GMC, Nissan, Buick 3.0L/4.2L 182-256ci I6 engines, sold as a complete set covering all cylinders.
Important Notes:
- Sized for standard (unmachined) cylinder bores. Verify your finished bore diameter with a precision gauge before ordering.
- File-fit and gap each ring to the manufacturer's end-gap specification for your application before installation. Improper end gap causes blow-by or ring-end butting under heat.
- Replace piston rings as a complete set during any rebuild. One set covers all cylinders for the engine.
- Premium. Steel top. 1.2 / 1.2 / 2.5mm.
- Premium. Steel top. 1.2 x 1.2 x 2.5mm. Fits early OE pistons with 1.2mm second ring.
| Part Number | S93116-STD |
| Grade | Premium |
| Bore Size | Standard |
| Ring Stack (Top/2nd/Oil) | 1.20 / 1.20 / 2.50 |
| Standard Bore Diameter | 3.661 in |
| Quantity | Complete set - covers all 6 cylinders |
| Engine | 3.0L/4.2L 182-256ci I6 |
| Year Range | 1995-2006 |
| Makes | Buick, Chevrolet, GMC, INFINITI, Nissan, Oldsmobile |
| Country of Origin | JP |
| OEM Cross-Refs | Hastings:2C4781, Topline:RSD34, Safety Auto Parts Corp:2C4781, DNJ:PR632 |
Sold as a complete piston ring set - one set covers all cylinders and is required per engine.
Fitment:
- 1995-2001 Nissan Maxima 3.0L 182ci V6
- 1996-2001 INFINITI I30 3.0L 182ci V6
- 2002-2004 Oldsmobile Bravada 4.2L 256ci I6
- 2002-2006 Chevrolet Trailblazer 4.2L 256ci I6
- 2002-2006 Chevrolet Trailblazer EXT 4.2L 256ci I6
- 2002-2006 GMC Envoy 4.2L 256ci I6
- 2002-2006 GMC Envoy XL 4.2L 256ci I6
- 2004-2005 GMC Envoy XUV 4.2L 256ci I6
- 2004-2006 Buick Rainier 4.2L 256ci I6
Enginetech piston ring sets are manufactured to OEM specifications and offered in both premium and cast grades to match the demands of stock rebuilds and moderate-performance builds. Each set is application-specific, with ring widths and end-gap characteristics matched to the bore and groove geometry of the engine family it serves. Ring sets are sold by bore size - standard for unmachined bores, with oversizes for blocks that have been bored and honed - so verify your finished bore diameter with a precision gauge before ordering, since rings sized for the wrong bore will not seal correctly. Always file-fit and gap each ring to the manufacturer's specification for your application, and replace rings as a complete set during any rebuild. Enginetech documents every set with the ring stack dimensions, bore size, and cross-references so the correct set reaches the bench the first time.
WARNING: This product can expose you to chemicals including lead and nickel, which are known to the State of California to cause cancer, birth defects, or other reproductive harm.
