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Sealed Power W369P Engine Piston
Sealed Power Engine Piston for Oldsmobile Vehicles
The Sealed Power W369P engine piston is designed for reliable performance in select Oldsmobile models. Engineered to meet standard size specifications, this cast piston offers precise fitment and durability for applications including the Oldsmobile Cutlass, Delta 88, and Toronado.
- Standard bore size of 4.1250 inches (104.8 mm)
- Recessed head design with .120 inch depth and 2.940 inch diameter
- Compression ratio of 9.75:1 for balanced engine performance
- Pin diameter of 0.9806 inches (24.907 mm) with 0.06 inch offset
- Includes two 5/64 inch width rings and one 3/16 inch width ring
- Minimum clearance of 0.0015 inches at 2.470 inches from top of head
- Constructed from durable cast material for longevity
Technical Details and Specifications
The W369P piston features a recessed head type with a .120 inch deep recess and a 2.940 inch diameter, supporting a compression ratio of 9.75:1. This design helps optimize combustion efficiency in compatible Oldsmobile engines. The piston bore measures 4.1250 inches (104.8 mm), matching standard size requirements for precise cylinder fitment. The pin diameter is 0.9806 inches (24.907 mm) with a 0.06 inch offset, which aids in reducing piston slap and improving engine smoothness. The piston rings include two rings at 5/64 inch width and one ring at 3/16 inch width, ensuring effective sealing and oil control.
Compatible Oldsmobile Models
This engine piston is compatible with a range of Oldsmobile vehicles, including:
- Oldsmobile 98
- Oldsmobile Custom Cruiser
- Oldsmobile Cutlass, Cutlass Salon, and Cutlass Supreme
- Oldsmobile Delta 88
- Oldsmobile Toronado
Common Applications and Problem Solving
The Sealed Power W369P piston is used primarily in engine rebuilds and repairs to address issues such as:
- Worn or damaged pistons causing loss of compression
- Engine knocking or piston slap due to improper fitment
- Reduced engine performance from compromised piston rings
- Oil consumption problems related to piston ring sealing
- Restoring engine efficiency in standard bore Oldsmobile engines
Installation Notes and Tips
- Verify bore size and piston specifications match engine requirements before installation
- Ensure proper clearance of 0.0015 inches at 2.470 inches from the top of the piston head
- Use appropriate ring compressors and lubricants during assembly
- Check pin diameter and offset compatibility with connecting rods
- Follow manufacturer torque specifications for piston pin and connecting rod installation
Quality Assurance and Warranty
Sealed Power pistons are manufactured from cast material to meet OEM standards for durability and performance. The W369P piston undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, Sealed Power products typically include coverage against manufacturing defects. Consult product documentation for exact warranty terms.
| Brand | Sealed Power |
| Part Number | W369P |
| Bore (Inch) | 4.1250 |
| Bore (mm) | 104.8000 |
| Compression Distance | 1.725 |
| Head Illustration | 28 |
| Head Type | Recessed Head .120 deep x 2.940 dia. - 9.75:1 C.R. |
| Minimum Clearance | 0.0015 @ 2.470 from top of head |
| Note 1 | Standard Size |
| Note 2 | Single Piston |
| Package Alert | Single Piston |
| Part Material | Cast |
| Pin Diameter (Inch) | 0.9806 |
| Pin Diameter (mm) | 24.907 |
| Pin Offset (Inch) | 0.06 |
| Pin Offset (MM) | 1.524 |
| Ring 1 Qty | 2 |
| Ring 1 Width | 5/64 |
| Ring 2 Qty | 1 |
| Ring 2 Width | 3/16 |
| Standard Size | Standard |
This part fits 48 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1976 | Oldsmobile | 98 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1976 | Oldsmobile | Custom Cruiser | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1976 | Oldsmobile | Cutlass | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1976 | Oldsmobile | Cutlass Salon | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1976 | Oldsmobile | Cutlass Supreme | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1976 | Oldsmobile | Delta 88 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1976 | Oldsmobile | Toronado | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1975 | Oldsmobile | 98 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1975 | Oldsmobile | Custom Cruiser | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1975 | Oldsmobile | Cutlass | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1975 | Oldsmobile | Cutlass Salon | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1975 | Oldsmobile | Cutlass Supreme | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1975 | Oldsmobile | Delta 88 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1975 | Oldsmobile | Toronado | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1974 | Oldsmobile | 98 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1974 | Oldsmobile | Custom Cruiser | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1974 | Oldsmobile | Cutlass | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1974 | Oldsmobile | Cutlass Supreme | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1974 | Oldsmobile | Delta 88 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1974 | Oldsmobile | Toronado | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1973 | Oldsmobile | 98 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1973 | Oldsmobile | Custom Cruiser | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1973 | Oldsmobile | Cutlass | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1973 | Oldsmobile | Cutlass Supreme | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1973 | Oldsmobile | Delta 88 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1973 | Oldsmobile | Toronado | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1972 | Oldsmobile | 98 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1972 | Oldsmobile | Custom Cruiser | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1972 | Oldsmobile | Cutlass | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1972 | Oldsmobile | Cutlass Supreme | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1972 | Oldsmobile | Delta 88 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1972 | Oldsmobile | Toronado | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1971 | Oldsmobile | 98 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1971 | Oldsmobile | Custom Cruiser | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1971 | Oldsmobile | Cutlass | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1971 | Oldsmobile | Cutlass Supreme | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1971 | Oldsmobile | Delta 88 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1971 | Oldsmobile | Toronado | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1970 | Oldsmobile | 98 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1970 | Oldsmobile | Cutlass | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1970 | Oldsmobile | Delta 88 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1970 | Oldsmobile | Toronado | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1969 | Oldsmobile | 98 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1969 | Oldsmobile | Delta 88 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1969 | Oldsmobile | Toronado | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1968 | Oldsmobile | 98 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1968 | Oldsmobile | Delta 88 | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
| 1968 | Oldsmobile | Toronado | 7.5L | V8 | N/A | High Compression; 1 Piston; 3 Ring Piston; 1.725 (in) Compression Distance; 0.120 (in) Deep x 2.940 (in) Diameter Recess; Cast Iron; with 9.75 :1 Compression Ratio; Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in); Sold Individually; Standard |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.