Sealed E-301K 30 piston ring set for the 1974-1983 Jeep Cherokee V8 5.9L and other vehicles seals each piston against the cylinder wall. The rings meet or exceed OEM specifications, and the set is oversized.
- Top ring face coated with latest generation Plasma-Moly
- Decreases friction and is very resistant to scuffing
- Exacting tolerances
- Top ring steel with moly; second ring grey iron with phosphate coating
- Second ring has a reverse torsional face; oil ring is a 3 piece flex vent design
Quick facts
- Part: Sealed E-301K 30 piston ring set
- Also called: engine piston ring set
- Fits: 1974-1983 Jeep Cherokee V8 5.9L and other vehicles
- Material: Top ring steel with moly; second ring grey iron with phosphate coating
- Condition: New
Worn rings can show up as oil burning, blue exhaust smoke or lost power. Before you replace the rings, rule out other sources of oil use or low compression, such as worn valve seals or a leaking head gasket; a shop can run compression and leak-down tests. The set holds rings for eight cylinders, so one set covers the whole engine.
Fits
The 1974-1983 Jeep Cherokee V8 5.9L, the 1984-1991 Jeep Grand Wagoneer V8 5.9L and the 1974-1988 Jeep J10 V8 5.9L take this piston ring set, along with other vehicles. For a car not named here, look up your year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Oversize: 0.030 inch
- Bore diameter: 4.0800 inch
- Ring set groove widths: 5/64 x 5/64 x 3/16 inch
- Oil ring width: 0.1875 inch
- Cylinders: 8
- Quantity per application: 1 set
Build and materials
- Top ring: steel with moly, Plasma-Moly coated face
- Second ring: grey iron with phosphate coating, reverse torsional face
- Oil ring: 3 piece flex vent
- Condition: New
- Country of origin: United States
Interchange: 40785.030 · M40858-030
2106138030 · 2M693030 · T8162MX30
This part cross-references / interchanges with the following part numbers:
40785030, 2106138030, M40858-030, 2M693030, 40785.030, T8162MX30
Frequently Asked Questions
Is the Sealed E-301K 30 right for the 1984-1991 Jeep Grand Wagoneer V8 5.9L?
Yes, Sealed E-301K 30 is listed for the 1984-1991 Jeep Grand Wagoneer V8 5.9L; for other cars, check your year and engine in the "Vehicles it fits" section.
Is this engine piston ring set oversized?
Yes. Sealed E-301K 30 is 0.030 inch oversize and made for a 4.0800 inch bore, so match it to your cylinder bore diameter.
What are the top and second rings in this set made of?
The top ring is steel with moly and has a Plasma-Moly coated face. The second ring is grey iron with a phosphate coating.
What kind of oil ring comes with this piston ring set?
The oil ring is a 3 piece flex vent design, 0.1875 inch wide. The set's groove widths are 5/64 x 5/64 x 3/16 inch.
Is 40785.030 a cross-reference for this piston ring set?
Yes. 40785.030 is one of the numbers this piston ring set replaces; the other cross-reference numbers are on the Interchange line.
