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Product Details
| Part Number: | K542M82 |
| Brand: | Wiseco |
| Bore: | 82mm |
| Compression Ratio: | 9.0:1 |
| Includes Piston Rings: | Yes |
Wiseco K542M82 – Sport Compact Pro Tru or Professional Series Forged Piston Set (82.00 mm Bore)
The Wiseco K542M82 is a high-performance forged piston set designed for Honda B-series engines. Available in both the Professional Series and Sport Compact Pro Tru™ variants, it delivers race-grade durability with precise engineering—ideal for street or track builds requiring reliability and power.
Features:
- High-strength forged construction for racing durability
- Set of four pistons with premium rings included
- Designed for 82.00 mm bore applications
- Compression height of 29.85 mm for optimized combustion
- 0.8268-inch pin diameter compatible with stock connecting rods
- Precision-machined for perfect fitment on Honda B18 engines
- Engineered for heavy-duty and severe racing conditions
- Part of Wiseco's Professional Series for maximum performance
Benefits:
- Premium Forged Construction: Crafted in the USA from 2618 aluminum alloy, these pistons offer superior tensile strength to withstand high RPMs and severe duty use.
- Value-Driven Pro Tru Option: The Sport Compact Pro Tru™ version targets budget-conscious builders who still demand strength and precision. Manufactured with dedicated forgings and CNC machining, these pistons are both lighter and stronger than standard alternatives.
- Complete Kit with Rings & Pins: These sets come fully assembled with pre-gapped plasma moly ring packages (1/16, 1/16, 3/16) and wrist pins—ready for installation.
- Advanced Machining for Performance: Features include fully machined crown surfaces, precision ring grooves, anti-detonation grooves, and enhancements for improved ring sealing—supporting durability and efficient combustion.
- Designed for Honda B-Series Engines: Compatible with popular platforms such as B18A1, B18B1, and others—making it ideal for builds using Integra GS, LS, RS, GS-R, Type R, and Civic Si or Del Sol models.
Specifications
- Bore Diameter: 82.00 mm
- Compression Height: 29.85 mm
- Piston Volume: –2.40 cc (dish design)
- Part Number: K542M82
- Series Option: Sport Compact Pro Tru
- Bore: 82.00 mm
- Compression Height: 29.85 mm
- Piston Volume: –2.40 cc
- Material: Forged Aluminum Alloy (2618)
- Ring Type: Plasma Moly (1/16, 1/16, 3/16) pre-gapped
- Includes: Pistons, rings, wrist pins
- Application: Honda/Acura B-Series Engines
The Wiseco K542M82 is a versatile, race-ready forged piston kit built to meet the standards of both street and track enthusiasts. Whether you opt for the high-end Professional Series or the value-focused Sport Compact Pro Tru, you're getting precision engineering, high-strength materials, and complete kits—all tailored for Honda’s robust B-series engines.
WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.
Vehicle Fitment
| Year | Make | Model | Trim |
|---|---|---|---|
| 1990 | Acura | Integra | GS |
| 1990 | Acura | Integra | LS |
| 1990 | Acura | Integra | RS |
| 1991 | Acura | Integra | GS |
| 1991 | Acura | Integra | LS |
| 1991 | Acura | Integra | RS |
| 1992 | Acura | Integra | GS |
| 1992 | Acura | Integra | GS-R |
| 1992 | Acura | Integra | LS |
| 1992 | Acura | Integra | RS |
| 1993 | Acura | Integra | GS |
| 1993 | Acura | Integra | GS-R |
| 1993 | Acura | Integra | LS |
| 1993 | Acura | Integra | RS |
| 1994 | Acura | Integra | GS-R |
| 1994 | Acura | Integra | LS |
| 1994 | Acura | Integra | RS |
| 1994 | Honda | Civic del Sol | VTEC |
| 1995 | Acura | Integra | GS-R |
| 1995 | Acura | Integra | LS |
| 1995 | Acura | Integra | RS |
| 1995 | Acura | Integra | Special Edition |
| 1995 | Honda | Civic del Sol | VTEC |
| 1996 | Acura | Integra | GS-R |
| 1996 | Acura | Integra | LS |
| 1996 | Acura | Integra | RS |
| 1996 | Acura | Integra | Special Edition |
| 1996 | Honda | Civic del Sol | VTEC |
| 1997 | Acura | Integra | GS |
| 1997 | Acura | Integra | GS-R |
| 1997 | Acura | Integra | LS |
| 1997 | Acura | Integra | RS |
| 1997 | Acura | Integra | Type R |
| 1997 | Honda | Civic del Sol | VTEC |
| 1998 | Acura | Integra | GS |
| 1998 | Acura | Integra | GS-R |
| 1998 | Acura | Integra | LS |
| 1998 | Acura | Integra | RS |
| 1998 | Acura | Integra | Type R |
| 1999 | Acura | Integra | GS |
| 1999 | Acura | Integra | GS-R |
| 1999 | Acura | Integra | LS |
| 1999 | Honda | Civic | Si |
| 2000 | Acura | Integra | GS |
| 2000 | Acura | Integra | GS-R |
| 2000 | Acura | Integra | LS |
| 2000 | Acura | Integra | Type R |
| 2000 | Honda | Civic | Si |
| 2001 | Acura | Integra | GS |
| 2001 | Acura | Integra | GS-R |
| 2001 | Acura | Integra | LS |
| 2001 | Acura | Integra | Type R |
Engine Fitment
Honda 1.8L/1834CC - 4 Cylinder (B18A1)
Honda 1.7L/1678CC - 4 Cylinder (B17A1)
Honda 1.8L/1797CC - 4 Cylinder (B18C1)
Honda 1.8L/1834CC - 4 Cylinder (B18B1)
Honda 1.8L/1797CC - 4 Cylinder (B18C5)
Honda 1.6L/1595CC - 4 Cylinder (B16A2)
Honda 1.6L/1588CC - 4 Cylinder (B16A3)
Honda 1.8L/1834CC - 4 Cylinder (B18A1)
Honda 1.7L/1678CC - 4 Cylinder (B17A1)
Honda 1.8L/1797CC - 4 Cylinder (B18C1)
Honda 1.8L/1834CC - 4 Cylinder (B18B1)
Honda 1.8L/1797CC - 4 Cylinder (B18C5)
Honda 1.6L/1595CC - 4 Cylinder (B16A2)
Honda 1.6L/1588CC - 4 Cylinder (B16A3)
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