Enginetech R89166-100 is a cast 1.00mm oversize piston ring set for 1987-1995 Chevy, Buick, Oldsmobile, Pontiac 2.8L/3.1L 173-189ci V6 engines, sold as a complete set covering all cylinders.
Important Notes:
- Sized for cylinders bored 1.00mm oversize. Verify your finished bore diameter with a precision gauge before ordering - rings sized for the wrong bore will not seal correctly.
- 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.
- Cast. 1.5 / 1.5 / 4.0mm. Aluminum head engines.
- Cast. 1.5mm / 1.5mm / 4.0mm.
| Part Number | R89166-100 |
| Grade | Cast |
| Bore Size | 1.00mm Oversize |
| Ring Stack (Top/2nd/Oil) | 1.50 / 1.50 / 4.00 |
| Standard Bore Diameter | 3.504 in |
| Quantity | Complete set - covers all 6 cylinders |
| Engine | 2.8L/3.1L 173-189ci V6 |
| Year Range | 1987-1995 |
| Makes | Buick, Cadillac, Chevrolet, Isuzu, Oldsmobile, Pontiac |
| Country of Origin | US |
| OEM Cross-Refs | Beck/Arnley:013-8268, Hastings:4456, FEL-PRO:E-478X, Perfect Circle:51473, ITM:021-6527 |
Sold as a complete piston ring set - one set covers all cylinders and is required per engine.
Fitment:
- 1987-1987 Chevrolet Beretta 2.8L 173ci V6
- 1987-1987 Oldsmobile Firenza 2.8L 173ci V6
- 1987-1988 Cadillac Cimarron 2.8L 173ci V6
- 1987-1988 Pontiac Fiero 2.8L 173ci V6
- 1987-1989 Buick Century 2.8L 173ci V6
- 1987-1989 Chevrolet Camaro 2.8L 173ci V6
- 1987-1989 Chevrolet Cavalier 2.8L 173ci V6
- 1987-1989 Chevrolet Celebrity 2.8L 173ci V6
- 1987-1989 Chevrolet Corsica 2.8L 173ci V6
- 1987-1989 Oldsmobile Cutlass Ciera 2.8L 173ci V6
- 1987-1989 Oldsmobile Cutlass Cruiser 2.8L 173ci V6
- 1987-1989 Pontiac 6000 2.8L 173ci V6
- 1987-1989 Pontiac Firebird 2.8L 173ci V6
- 1988-1989 Buick Regal 2.8L 173ci V6
- 1988-1989 Oldsmobile Cutlass Supreme 2.8L 173ci V6
- 1988-1989 Pontiac Grand Prix 2.8L 173ci V6
- 1988-1991 Pontiac 6000 3.1L 189ci V6
- 1989-1993 Pontiac Grand Prix 3.1L 189ci V6
- 1990-1990 Chevrolet Celebrity 3.1L 189ci V6
- 1990-1992 Pontiac Firebird 3.1L 189ci V6
- 1990-1993 Chevrolet Beretta 3.1L 189ci V6
- 1990-1994 Chevrolet Cavalier 3.1L 189ci V6
- 1990-1994 Chevrolet Lumina 3.1L 189ci V6
- 1990-1994 Oldsmobile Silhouette 3.1L 189ci V6
- 1990-1995 Chevrolet Lumina APV 3.1L 189ci V6
- 1990-1995 Pontiac Trans Sport 3.1L 189ci V6
- 1991-1992 Isuzu Rodeo 3.1L V6
- 1991-1994 Isuzu Pickup 3.1L V6
- 1991-1994 Pontiac Sunbird 3.1L 189ci V6
- 1993-1993 Chevrolet Lumina 3.1L 189ci V6
- ...and 10 additional applications
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.
