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Engines and Components› Pistons and Piston Rings
CP Pistons
CP Ring ONLY for SC7338/SC7381 pistons
SKU: C00A RS165A-3780-0
Advanced — 4+ hours
Overview
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Part #: RS165A-3780-0
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.
Vehicle Symptoms
- Excessive oil consumption between changes
- Blue smoke from exhaust on acceleration
- Loss of engine power and compression
- Rough idle or misfire at low RPM
- Blow-by detected from PCV system
Diagnostic Codes
- P0300 – Random or multiple cylinder misfire Det
- P0301 – Cylinder 1 misfire Det
- P0302 – Cylinder 2 misfire Det
- P0303 – Cylinder 3 misfire Det
- P0304 – Cylinder 4 misfire Det
Relevant Conversations
- car burning oil blue smoke need piston rings
- P0300 misfire after compression test low
- CP Pistons ring set RS165A 4 inch fitment
- replace piston rings without removing engine
- symptoms of worn piston rings vs valve seals
- best piston ring set for high mileage rebuild
- how to choose piston rings for CP SC7338
- compression test results 90 psi all cylinders fix
- piston ring replacement cost vs engine swap
- co-purchase with CP Pistons SC7381 ring set
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | CP Pistons |
| Part Number | C00A RS165A-3780-0 |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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