Enginetech PK72 is a steel freeze plug set (expansion plug set) for 1995-2007 Buick, Chevrolet, Oldsmobile, Pontiac engines (3.8L 231ci V6). Sold as a complete set covering all block expansion plug positions.
Important Notes
- Block plugs are 1.517 diameter
- Steel plugs. Block plugs are 1.517 diameter
- Steel plugs. Block plugs are 1.517 diameter.
Product Specifications
| Part Number | PK72 |
| Brand | Enginetech |
| Product Type | Freeze Plug Set (Expansion Plug Set) |
| Material | Steel |
| Quantity | Sold as a complete set (1 set per order) |
| Application | 1995-2007 Buick, Chevrolet, Oldsmobile, Pontiac |
| Engine | 3.8L 231ci V6 |
Vehicle Fitment
- 1995 Buick LeSabre 3.8L 231ci V6 OHV
- 1995 Buick Regal 3.8L 231ci V6 OHV [VIN:L]
- 1995 Oldsmobile 88 3.8L 231ci V6 OHV [VIN:1] Supercharged
- 1995 Oldsmobile 98 3.8L 231ci V6 OHV [VIN:1] Supercharged
- 1995-1996 Oldsmobile 98 3.8L 231ci V6 OHV [VIN:K]
- 1995-1997 Buick Park Avenue 3.8L 231ci V6 OHV [VIN:K]
- 1995-1997 Buick Riviera 3.8L 231ci V6 OHV [VIN:K]
- 1995-1997 Chevrolet Camaro 3.8L 231ci V6 OHV [VIN:K]
- 1995-1997 Oldsmobile 88 3.8L 231ci V6 OHV [VIN:K]
- 1995-1997 Pontiac Bonneville 3.8L 231ci V6 OHV [VIN:K]
- 1995-1997 Pontiac Firebird 3.8L 231ci V6 OHV [VIN:K]
- 1995-1999 Buick Riviera 3.8L 231ci V6 OHV [VIN:1] Supercharged
- 1995-2002 Pontiac Bonneville 3.8L 231ci V6 OHV [VIN:1]
- 1995-2005 Buick Park Avenue 3.8L 231ci V6 OHV [VIN:1] Supercharged
- 1996-1997 Buick LeSabre 3.8L 231ci V6 OHV
- 1996-1997 Buick Regal 3.8L 231ci V6 OHV [VIN:K]
- 1996-1997 Oldsmobile LSS 3.8L 231ci V6 OHV [VIN:K]
- 1996-1999 Oldsmobile LSS 3.8L 231ci V6 OHV [VIN:1] Supercharged
- 1997 Oldsmobile Regency 3.8L 231ci V6 OHV [VIN:K]
- 1997 Pontiac Grand Prix 3.8L 231ci V6 OHV [VIN:K]
- 1997-2003 Pontiac Grand Prix 3.8L 231ci V6 OHV [VIN:1] Supercharged
- 1997-2004 Buick Regal 3.8L 231ci V6 OHV [VIN:1] Supercharged
- 2004-2005 Chevrolet Impala 3.8L 231ci V6 OHV [VIN:1] Supercharged
- 2004-2005 Chevrolet Monte Carlo 3.8L 231ci V6 OHV [VIN:1] Supercharged
- 2004-2007 Pontiac Grand Prix 3.8L 231ci V6 OHV [VIN:4] Supercharged
Enginetech freeze plug sets (also known as expansion plugs, core plugs, or Welsh plugs) are produced using high quality cold-rolled steel with zinc plating for excellent corrosion resistance, or brass for superior long-term protection in severe-duty and high-mileage applications. Enginetech offers a full selection including standard cup design, reverse taper, disc, and deep cup styles. Always replace all expansion plugs during a complete engine rebuild - old plugs left in place are a common source of coolant leaks on rebuilt engines. Apply a thin coat of thread sealant or anaerobic gasket maker to the plug outer diameter before installation. Verify all plug diameters match your engine block before ordering.
