Sealed Power Engine Piston Ring Set P/N:E-991K
Sealed Power E-553X piston ring set for the 1991-1993 Chevrolet C1500 V8 7.4L and other vehicles seals each cylinder against the piston. Every Sealed Power piston ring in the set is made to exacting tolerances and meets or exceeds OEM specifications.
Worn rings can show up as higher oil use, blue exhaust smoke or low compression. Before you replace them, rule out other sources such as valve-stem seals or the PCV system, because those can produce the same signs. A shop can run a compression or leak-down test.
It is listed for a wide range of Chevrolet and GMC models, led by the 1991-1993 Chevrolet C1500 V8 7.4L, the 1991-2000 Chevrolet C2500 V8 7.4L and the 1991-2000 Chevrolet C3500 V8 7.4L. If your truck or van is not named here, look for it in the "Vehicles it fits" section. This listing is one engine piston ring set, and the 1991-1993 Chevrolet C1500 V8 7.4L takes one, which covers its eight cylinders.
Fit and size
Build and materials
Interchange: R42518-STD
51617 · 4718
This part cross-references / interchanges with the following part numbers:
Will the Sealed Power piston ring set fit the 1991-2000 Chevrolet C3500 V8 7.4L?
Yes. Sealed Power E-553X is listed for the 1991-2000 Chevrolet C3500 V8 7.4L. If your truck or van is a different model, find it in the "Vehicles it fits" section.
What bore size is this piston ring set made for?
Sealed Power E-553X is a standard-size set, not oversized, for a 4.2500 inch bore. Its ring groove widths are 5/64 x 5/64 x 3/16 inch.
What are the top and second rings made of in this set?
Both the top ring and the second ring are grey iron. The second ring has a reverse torsional face.
Is R42518-STD the same as this piston ring set?
Yes, R42518-STD is on the interchange list for this set, so the E-553X replaces it.
Is blue smoke from the tailpipe a sign the piston rings are worn?
It can be, along with rising oil use or low compression. A shop can confirm it with a compression or leak-down test.
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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.