🛠️ Product Title
E3.42 Automotive Spark Plug – 14mm, 0.460” Reach, Taper Seat – DiamondFIRE Technology
📦 Product Description
The E3.42 Automotive Spark Plug is engineered for optimal performance in a wide range of domestic vehicles from the late 1960s through the mid-1990s. Designed with E3’s patented DiamondFIRE electrode technology, this spark plug improves combustion efficiency, delivering increased power, better fuel economy, and reduced emissions.
Its unique ground electrode design enhances flame kernel development, creating a more complete burn inside the cylinder. With a durable construction and advanced heat transfer capabilities, the E3.42 is built to perform reliably for up to 100,000 miles or 5 years.
⭐ Key Features
- Patented DiamondFIRE electrode for improved combustion
- Increases horsepower and fuel efficiency
- Reduces hydrocarbon emissions
- Three-leg ground electrode design for superior heat transfer
- Long-lasting performance (up to 100,000 miles)
- Factory pre-gapped – no adjustment needed
🔧 Product Specifications
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Part Number: E3.42
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Resistor: Yes
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Hex Size: 5/8"
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Thread Diameter: 14mm
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Thread Reach: 0.460"
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Seat Type: Tapered
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Gap Type: Fixed (Non-adjustable)
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Electrode Design: DiamondFIRE
🚗 Vehicle Fitment (Full Compatibility)
This plug fits a wide range of domestic vehicles. Below is the detailed application list:
Dodge
Aspen (1976–1980) — L6 3.7L
B100 (1975–1980) — L6 3.7L
B150 (1981–1989) — L6 3.7L, V6 3.9L
B200 (1975–1980) — L6 3.7L
B250 (1981–1989) — L6 3.7L, V6 3.9L
B300 (1975–1980) — L6 3.7L
CB300 (1975–1979) — L6 3.7L
Charger (1976) — L6 3.7L
Coronet (1975–1976) — L6 3.7L
D100 (1975–1987) — L6 3.7L
D150 (1977–1987) — L6 3.7L
D200 (1975–1980) — L6 3.7L
D250 (1981–1987) — L6 3.7L
D300 (1975–1978) — L6 3.7L
Diplomat (1978–1983) — L6 3.7L
Mirada (1980–1983) — L6 3.7L
Monaco (1977–1978) — L6 3.7L
Ramcharger (1975–1980) — L6 3.7L
St. Regis (1979–1981) — L6 3.7L
W100 (1975–1987) — L6 3.7L
W150 (1978–1987) — L6 3.7L
W200 (1975–1980) — L6 3.7L
W300 (1975–1978) — L6 3.7L
Ford
Bronco (1975–1996) — V8 5.0L, 5.8L, 6.6L
F-100 (1975–1983) — V8 5.0L–7.5L
F-150 (1975–1996) — V8 5.0L–7.5L
F-250 (1973–1997) — V8 5.0L–7.5L
F-350 (1973–1997) — V8 5.0L–7.5L
E-Series Vans (1975–1996) — V8 5.0L–7.5L
Thunderbird (1971–1993) — V8 4.2L–7.5L
Torino (1970–1976) — V8 5.8L–7.5L
Mustang (1969–1995) — V8 4.2L–7.0L
LTD / Crown Victoria (1969–1991) — V8 4.2L–7.5L
GMC
C1500 / C2500 / C3500 (1979–1995) — L6, V6, V8
K1500 / K2500 / K3500 (1979–1995) — L6, V6, V8
G1500 / G2500 / G3500 Vans (1979–1996) — L6, V6, V8
Jimmy (1970–1995) — L6, V8
Safari (1985–1995) — L4 2.5L, V6 4.3L
Sonoma (1991–1995) — V6 4.3L
Caballero (1978–1987) — V6, V8
Sprint (1971–1977) — L6, V8
R/V Series (1987–1991) — V8 5.7L, 7.4L
Yukon (1992–1995) — V8 5.7L
Jeep
CJ5 (1980–1983) — L4 2.5L
CJ7 (1980–1983) — L4 2.5L
Cherokee (1984–1986) — V6 2.8L
Comanche (1986) — V6 2.8L
Wagoneer (1968–1986) — V8 5.7L, V6 2.8L
Scrambler (1981–1983) — L4 2.5L
Pontiac
Firebird (1970–1995) — L4, V6, V8
Grand Prix (1972–1987) — V6, V8
LeMans (1970–1981) — L6, V6, V8
Bonneville (1972–1986) — V6, V8
Grand Am (1973–1991) — L4, V6, V8
Additional Makes
Includes select applications for:
Lincoln, Mercury, Oldsmobile, Plymouth, Excalibur, and more (1968–1995)
⚠️ Important Fitment Note
Due to the wide range of compatible vehicles, always confirm:
- Engine size
- Year / make / model
