CP forged piston and ring set for the Acura/Honda K20A/A2/A3 (RSX). 87.5mm bore (+1.5mm over), flat-top design giving 9.6:1 compression on the K20A (10.9:1 on a K24A). Forged from 2618 aluminum. Includes CP piston rings. Set of 4.
Specifications
| Type | Forged piston & ring set (flat-top) |
| Engine | Acura/Honda K20A/A2/A3 |
| Bore | 87.5mm (+1.5mm) |
| Compression | 9.6:1 (K20A) / 10.9:1 (K24A) |
| Material | 2618 forged aluminum |
| Includes | CP piston rings |
| Quantity | Set of 4 |
| Part Number | SC70458-4 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2006 | Acura | RSX | Base |
| 2002-2004 | Acura | RSX | Type-S |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
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