Free shipping on eligible orders of $100 or more. Oversized and freight items excluded.

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CP Ring ONLY for SC7421 pistons

CP Pistons · New

CP Ring ONLY for SC7421 pistons

MPN RS1658-3937-0 · Store SKU cppRS1658-3937-0

$30.25
IN STOCK12 ready to ship

Supplier stock checked 11/7/2026, 11:24:24 AM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

CP-Carrillo is known for high-performance forged pistons and rings that take your engine to the next level. Made to last and perform for custom built and high power output engines.

Manufacturer fitment & guides

Check RS1658-3937-0 against the manufacturer’s application information below.

A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.

Part-specific notes

  • Not CARB approved. Destination and intended-use restrictions must be checked before sale.
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