The Enginetech PK21B is a brass and steel engine expansion plug set for 1968-1984 Cadillac 7.7L engines.
Important Notes
- Note: This part number has a minimum order quantity requirement.
Specifications
| Part Number | PK21B |
| Product Type | Brass and Steel Freeze Plug Set |
| Material | Brass and Steel |
Vehicle Fitment
- 1968 Cadillac Eldorado 7.7L 472ci V8 OHV [VIN:8]
- 1968-1969 Cadillac Eldorado 7.7L 472ci V8
- 1968-1974 Cadillac Calais 7.7L 472ci V8 OHV
- 1968-1974 Cadillac Commercial Chassis 7.7L 472ci V8 OHV
- 1968-1974 Cadillac DeVille 7.7L 472ci V8 OHV
- 1968-1974 Cadillac Fleetwood 7.7L 472ci V8 OHV
- 1969 Cadillac Eldorado 7.7L 472ci V8 OHV [VIN:9]
- 1970-1976 Cadillac Eldorado 8.2L 500ci V8 OHV
- 1975-1976 Cadillac Calais 8.2L 500ci V8 OHV [VIN:S]
- 1975-1976 Cadillac Commercial Chassis 8.2L 500ci V8 OHV [VIN:S]
- 1975-1976 Cadillac DeVille 8.2L 500ci V8 OHV [VIN:S]
- 1975-1976 Cadillac Fleetwood 8.2L 500ci V8 [VIN:S]
- 1977-1978 Cadillac Commercial Chassis 7.0L 425ci V8 OHV [VIN:T]
- 1977-1978 Cadillac Eldorado 7.0L 425ci V8 OHV [VIN:S]
- 1977-1978 Cadillac Eldorado 7.0L 425ci V8 OHV [VIN:T]
- 1977-1979 Cadillac Commercial Chassis 7.0L 425ci V8 OHV [VIN:S]
- 1977-1979 Cadillac DeVille 7.0L 425ci V8 OHV [VIN:S]
- 1977-1979 Cadillac DeVille 7.0L 425ci V8 OHV [VIN:T]
- 1977-1979 Cadillac Fleetwood 7.0L 425ci V8 OHV [VIN:S]
- 1977-1979 Cadillac Fleetwood 7.0L 425ci V8 OHV [VIN:T]
- 1980 Cadillac DeVille 6.0L 368ci V8 OHV [VIN:6]
- 1980, 1982 Cadillac Fleetwood 6.0L 368ci V8 OHV [VIN:6]
- 1980-1981 Cadillac Eldorado 6.0L 368ci V8 OHV [VIN:9]
- 1980-1981 Cadillac Seville 6.0L 368ci V8 OHV [VIN:9]
- 1980-1984 Cadillac Commercial Chassis 6.0L 368ci V8 OHV [VIN:6]
- 1981 Cadillac DeVille 6.0L 368ci V8 OHV [VIN:9]
- 1981-1984 Cadillac Fleetwood 6.0L 368ci V8 OHV [VIN:9]
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.
WARNING: This product can expose you to chemicals including lead and nickel, which are known to the State of California to cause cancer, birth defects, or other reproductive harm.
