Sealed Power Engine Piston Ring Set P/N:E-243K 30
Sealed Power E-243K 40 piston ring set for the 1970-1976 Chevrolet Impala V8 6.6L and other vehicles seals each piston against its cylinder wall. This oversized set, also called an engine piston ring set, is made for classic engine rebuilds in applications over 35 years old.
Worn rings can show up as oil burning, blue exhaust smoke or lost compression. Worn valve stem seals, a leaking head gasket or scored cylinder walls can be behind those signs too, so find the cause before you buy rings.
This ring set is a direct-fit replacement for the 1970-1976 Chevrolet Impala V8 6.6L, the 1966 Dodge Charger V8 5.9L and the 1961-1964 Chrysler Town & Country V8 5.9L. It meets or exceeds OEM specifications. If your car is not named here, look up its year and engine in the "Vehicles it fits" section.
Fit and size
Build and materials
One piston ring set for eight cylinders; each vehicle takes one set.
Interchange: 40141CP.040
243K040 · 2106077040 · 40141040 · 2M661040 · T7678MX40
This part cross-references / interchanges with the following part numbers:
Will Sealed Power E-243K 40 fit the 1966 Dodge Charger V8 5.9L?
Yes, Sealed Power E-243K 40 is listed for the 1966 Dodge Charger V8 5.9L and the 1961-1964 Chrysler Town & Country V8 5.9L; other years and engines are in the "Vehicles it fits" section.
Is this Sealed Power piston ring set standard size or oversized?
This ring set is oversized by 0.040 inch, so it suits an engine whose cylinders are bored to that oversize rather than a standard-bore engine.
What is the top ring made of on the Sealed Power E-243K 40?
On Sealed Power E-243K 40, the top ring is steel with moly. The face of the top rings also carries a Plasma-Moly coating that decreases friction and resists scuffing.
What signs can mean the piston rings in a classic V8 are worn?
Oil burning, blue exhaust smoke and lost compression can all mean worn rings. A shop can run a compression or leak-down test to sort out the cause.
Does Sealed Power E-243K 40 interchange with 243K040?
Yes. 243K040 is on this set's Interchange line, along with 40141CP.040 and several other numbers.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.