Enginetech PK42 is a steel freeze plug set (expansion plug set) for 1977-1993 American Motors, Buick, Chevrolet, GMC, Jeep, Pontiac engines (2.5L 151ci I4). Sold as a complete set covering all block expansion plug positions.
Product Specifications
| Part Number | PK42 |
| Brand | Enginetech |
| Product Type | Freeze Plug Set (Expansion Plug Set) |
| Material | Steel |
| Quantity | Sold as a complete set (1 set per order) |
| Application | 1977-1993 American Motors, Buick, Chevrolet, GMC, Jeep, Pontiac |
| Engine | 2.5L 151ci I4 |
Vehicle Fitment
- 1977 Pontiac Astre 2.5L 151ci I4 OHV [VIN:V]
- 1977 Pontiac Ventura 2.5L 151ci I4 [VIN:V]
- 1977-1978 Pontiac Phoenix 2.5L 151ci I4 OHV [VIN:V]
- 1977-1980 Pontiac Sunbird 2.5L 151ci I4 OHV [VIN:V]
- 1978-1979 Chevrolet Monza 2.5L 151ci I4 OHV [VIN:1]
- 1978-1979 Pontiac Sunbird 2.5L 151ci I4 OHV [VIN:1]
- 1978-1980 Chevrolet Monza 2.5L 151ci I4 OHV [VIN:V]
- 1979 Chevrolet Monza 2.5L 151ci I4 OHV [VIN:9]
- 1979 Pontiac Sunbird 2.5L 151ci I4 OHV [VIN:9]
- 1980-1981 Buick Skylark 2.5L 151ci I4 OHV [VIN:5]
- 1980-1981 Chevrolet Citation 2.5L 151ci I4 OHV [VIN:5]
- 1980-1982 American Motors Concord 2.5L 151ci I4 OHV [VIN:B]
- 1980-1982 American Motors Spirit 2.5L 151ci I4
- 1980-1982 Pontiac Phoenix 2.5L 151ci I4 OHV [VIN:5]
- 1980-1983 Jeep CJ5 2.5L 151ci I4 OHV
- 1980-1983 Jeep CJ7 2.5L 151ci I4 OHV
- 1980-1983 Jeep DJ5 2.5L 151ci I4 OHV
- 1981-1983 American Motors Eagle 2.5L 151ci I4
- 1981-1983 Jeep Scrambler 2.5L 151ci I4 OHV [VIN:B]
- 1982 Buick Century 2.5L 151ci I4 OHV [VIN:5]
- 1982-1983 Chevrolet Citation 2.5L 151ci I4 OHV [VIN:R]
- 1982-1984 Pontiac Phoenix 2.5L 151ci I4 OHV [VIN:R]
- 1982-1985 Buick Skylark 2.5L 151ci I4 OHV [VIN:R]
- 1982-1986 Pontiac Firebird 2.5L 151ci I4 OHV [VIN:2]
- 1982-1990 Chevrolet Celebrity 2.5L 151ci I4 OHV [VIN:R]
- 1982-1991 Pontiac 6000 2.5L 151ci I4 OHV [VIN:R]
- 1982-1992 Buick Century 2.5L 151ci I4 OHV [VIN:R]
- 1984-1985 Chevrolet Citation II 2.5L 151ci I4 OHV [VIN:R]
- 1984-1988 Pontiac Fiero 2.5L 151ci I4 OHV [VIN:R]
- 1985 Buick Somerset Regal 2.5L 151ci I4 OHV [VIN:U]
- 1985-1988 Chevrolet S10 Blazer 2.5L 151ci I4 OHV [VIN:E]
- 1985-1988 GMC S15 Jimmy 2.5L 151ci I4 OHV [VIN:E]
- 1985-1990 Chevrolet Astro 2.5L 151ci I4 OHV [VIN:E]
- 1985-1990 GMC S15 2.5L 151ci I4 OHV [VIN:E]
- 1985-1990 GMC Safari 2.5L 151ci I4 OHV [VIN:E]
- 1985-1991 Chevrolet S10 2.5L 151ci I4 OHV [VIN:E]
- 1985-1991 Pontiac Grand Am 2.5L 151ci I4 OHV [VIN:U]
- 1986-1987 Buick Somerset 2.5L 151ci I4 OHV [VIN:U]
- 1986-1991 Buick Skylark 2.5L 151ci I4 OHV [VIN:U]
- 1987-1991 Chevrolet LLV 2.5L 151ci I4 OHV [VIN:E]
- 1990-1992 Chevrolet Lumina 2.5L 151ci I4 OHV [VIN:R]
- 1991 GMC Sonoma 2.5L 151ci I4 OHV [VIN:E]
- 1991-1993 Chevrolet LLV 2.5L 151ci I4 OHV [VIN:A]
- 1991-1993 Chevrolet S10 2.5L 151ci I4 OHV [VIN:A]
- 1991-1993 GMC Sonoma 2.5L 151ci I4 OHV [VIN:A]
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.
