Enginetech M40134-030 is a premium .030" oversize piston ring set for 1982-1993 Chevy, GMC, Jeep, Buick 2.5L 151ci I4 engines, sold as a complete set covering all cylinders.
Important Notes:
- Sized for cylinders bored .030 inch 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.
- Premium. Ductile top. 1/16 5/64 3/16. Shallow oil ring. Fits OE pistons.
| Part Number | M40134-030 |
| Grade | Premium |
| Bore Size | .030" Oversize |
| Ring Stack (Top/2nd/Oil) | 1/16 / 5/64 / 3/16 |
| Standard Bore Diameter | 4.000 in |
| Quantity | Complete set - covers all 4 cylinders |
| Engine | 2.5L 151ci I4 |
| Year Range | 1982-1993 |
| Makes | American, Buick, Chevrolet, GMC, Jeep, Pontiac |
| Country of Origin | US |
| OEM Cross-Refs | Hastings:2M5663, FEL-PRO:E-384K, Perfect Circle:41559 |
Sold as a complete piston ring set - one set covers all cylinders and is required per engine.
Fitment:
- 1982-1982 American Motors Concord 2.5L 151ci I4
- 1982-1982 American Motors Spirit 2.5L 151ci I4
- 1982-1982 Buick Century 2.5L 151ci I4
- 1982-1982 Pontiac Phoenix 2.5L 151ci I4
- 1982-1983 American Motors Eagle 2.5L 151ci I4
- 1982-1983 Chevrolet Citation 2.5L 151ci I4
- 1982-1983 Jeep CJ5 2.5L 151ci I4
- 1982-1983 Jeep CJ7 2.5L 151ci I4
- 1982-1983 Jeep DJ5 2.5L 151ci I4
- 1982-1983 Jeep Scrambler 2.5L 151ci I4
- 1982-1984 Pontiac Phoenix 2.5L 151ci I4
- 1982-1985 Buick Skylark 2.5L 151ci I4
- 1982-1986 Pontiac Firebird 2.5L 151ci I4
- 1982-1990 Chevrolet Celebrity 2.5L 151ci I4
- 1982-1991 Pontiac 6000 2.5L 151ci I4
- 1982-1992 Buick Century 2.5L 151ci I4
- 1984-1985 Chevrolet Citation II 2.5L 151ci I4
- 1984-1988 Pontiac Fiero 2.5L 151ci I4
- 1985-1985 Buick Somerset Regal 2.5L 151ci I4
- 1985-1988 Chevrolet S10 Blazer 2.5L 151ci I4
- 1985-1988 GMC S15 Jimmy 2.5L 151ci I4
- 1985-1990 Chevrolet Astro 2.5L 151ci I4
- 1985-1990 GMC S15 2.5L 151ci I4
- 1985-1990 GMC Safari 2.5L 151ci I4
- 1985-1991 Chevrolet S10 2.5L 151ci I4
- 1985-1991 Pontiac Grand Am 2.5L 151ci I4
- 1986-1987 Buick Somerset 2.5L 151ci I4
- 1986-1991 Buick Skylark 2.5L 151ci I4
- 1987-1991 Chevrolet LLV 2.5L 151ci I4
- 1990-1992 Chevrolet Lumina 2.5L 151ci I4
- ...and 4 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.
