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Motorcraft Spark Plug – SP420X (BSF42CX)
Motorcraft Spark Plug – SP420X (BSF42CX)
Load image into Gallery viewer, Motorcraft Spark Plug – SP420X (BSF42CX)
Load image into Gallery viewer, Motorcraft Spark Plug – SP420X (BSF42CX)

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Motorcraft Spark Plug – SP420X (BSF42CX)

MOTORCRAFT
ELE2086
In stock
$10.29 $8.99
Description The Motorcraft SP420X (BSF42CX) is a standard service spark plug engineered to meet Ford’s OEM...
$8.99
Motorcraft Spark Plug – SP420X (BSF42CX)
Description

Description

The Motorcraft SP420X (BSF42CX) is a standard service spark plug engineered to meet Ford’s OEM engineering standards, making it ideal for a wide range of classic Ford, Lincoln, and Mercury vehicles.

Designed to deliver consistent ignition performance, this plug helps maintain smooth engine operation, reduce misfires, and support proper fuel combustion. Built with high-quality materials, it provides long-lasting durability (typically 60,000–100,000 miles) and dependable performance in both daily drivers and restored classics.

Motorcraft spark plugs are precisely matched to engine requirements, ensuring optimal fitment, reliable starts, and efficient engine operation.

Key Features

  • OEM-quality Motorcraft engineering
  • Designed for classic and vintage applications
  • Helps reduce misfires and fuel consumption
  • Supports smooth idle and reliable ignition
  • Built for durability and long service life
  • Compatible with a wide range of Ford, Lincoln, and Mercury engines

Technical Specifications

  • Brand: Motorcraft
  • Part Number: BSF42CX
  • SKU: SP420X
  • Dimensions: 1.00 L x 1.00 W x 3.38 H in
  • Weight: 0.10 lb
  • Type: Standard Service Spark Plug

Vehicle Fitment

FORD

Club / Wagon

  • Club (1958–1959) — 5.8L
  • Club Wagon (1967) — 3.9L

Country Series

  • Country Sedan (1958–1974) — 3.9L, 4.7L, 5.0L, 5.8L, 6.4L, 7.0L, 7.5L
  • Country Squire (1958–1974) — 3.9L, 4.7L, 5.0L, 5.8L, 6.4L, 7.0L, 7.5L

Courier / Custom

  • Courier Sedan Delivery (1958) — 5.8L
  • Custom (1964–1972) — 3.9L, 4.7L, 5.0L, 5.8L, 6.4L, 7.0L
  • Custom 300 (1958–1960) — 5.8L
  • Custom 500 (1964–1974) — 3.9L, 4.7L, 5.0L, 5.8L, 6.4L, 7.0L

Wagons / Specialty

  • Del Rio Wagon (1958) — 5.8L

E-Series Vans

  • E-100 Econoline (1969–1974) — 3.9L, 5.0L
  • E-100 Econoline (1983) — 4.9L
  • E-100 Club Wagon (1983) — 4.9L
  • E-150 Econoline (1983–1986) — 4.9L (Gas/LPG)
  • E-150 Club Wagon (1983–1986) — 4.9L
  • E-200 Econoline (1969–1974) — 3.9L, 4.9L, 5.0L
  • E-250 Econoline (1983–1986) — 4.9L (Gas/LPG)
  • E-250 Club Wagon (1983–1986) — 4.9L
  • E-300 Econoline (1969–1974) — 3.9L, 4.9L, 5.0L
  • E-350 Econoline (1983–1986) — 4.9L (Gas/LPG)
  • E-350 Club Wagon (1983–1986) — 4.9L

Pickup Trucks

  • F-100 (1965–1983) — 3.9L, 4.9L, 5.0L, 5.8L, 5.9L, 6.4L
  • F-150 (1975–1986) — 4.9L, 5.9L, 6.4L
  • F-250 (1965–1986) — 3.9L, 4.9L, 5.0L, 5.8L, 5.9L, 6.4L
  • F-500 (1975) — 5.9L, 6.4L

Passenger Cars

  • Fairlane (1958–1970) — 4.7L, 5.0L, 5.8L, 6.4L, 7.0L
  • Falcon (1964–1970) — 4.7L, 5.0L, 5.8L, 7.0L
  • Falcon Sedan Delivery (1965) — 4.7L
  • Galaxie (1959–1967) — 3.9L, 4.7L, 5.8L, 6.4L, 7.0L
  • Galaxie 500 (1962–1974) — 3.9L, 4.7L, 5.0L, 5.8L, 6.4L, 7.0L
  • Gran Torino (1972–1974) — 5.0L, 5.8L, 7.0L
  • LTD (1965–1974) — 4.7L, 5.0L, 5.8L, 6.4L, 7.0L, 7.5L
  • Maverick (1971–1974) — 5.0L
  • Mustang (1964–1973) — 4.7L, 5.0L, 5.8L, 6.4L, 7.0L
  • Pinto (1971–1974) — 2.0L

Commercial / Utility

  • P-350 (1968–1972) — 3.9L, 5.0L
  • Ranch Wagon (1958–1974) — 3.9L–7.0L
  • Ranchero (1958–1959, 1965–1974) — 4.7L–7.0L

Classic Models

  • Skyliner (1958–1959) — 5.8L
  • Starliner (1960) — 5.8L
  • Sunliner (1958–1960) — 5.8L
  • Thunderbird (1958–1972) — 5.8L, 6.4L, 7.0L, 7.5L
  • Torino (1968–1974) — 5.0L, 5.8L, 6.4L, 7.0L
  • Victoria (1958–1960) — 5.8L

LINCOLN

  • Capri (1958–1959) — 7.0L
  • Continental (1958–1972) — 7.0L, 7.5L, 7.6L
  • Lincoln Series (1960) — 7.0L
  • Mark III (1968–1971) — 7.5L, 7.6L
  • Mark IV (1972) — 7.5L
  • Premier (1958–1960) — 7.0L

MERCURY

Full-Size / Wagon

  • Brougham (1967) — 6.7L, 7.0L
  • Colony Park (1958–1973) — 4.8L–7.5L
  • Commuter (1958–1968) — 4.7L–7.0L
  • Country Cruiser (1959–1963) — 3.6L, 6.3L, 7.0L

Mid-Size / Performance

  • Caliente (1964–1967) — 4.3L, 4.7L, 6.4L, 7.0L
  • Comet (1963–1974) — 4.3L–7.0L
  • Cougar (1967–1974) — 4.7L–7.0L
  • Cyclone (1964–1971) — 4.3L–7.0L
  • Montego (1968–1974) — 5.0L–7.0L

Luxury

  • Marquis (1967–1973) — 5.8L–7.5L
  • Monterey (1958–1973) — 4.8L–7.5L
  • Montclair (1958–1968) — 6.3L–7.0L
  • Park Lane (1958–1968) — 6.3L–7.0L

Other Models

  • Capri (1971–1974) — 2.0L
  • Marauder (1963–1970) — 6.4L, 7.0L
  • Villager (1963–1967) — 4.3L–7.0L
  • Voyager (1958–1967) — 4.7L–7.0L

Summary

  • Vehicle Coverage: Ford, Lincoln, Mercury
  • Years Covered: 1958–1986
  • Engine Range: 2.0L to 7.5L
  • Application: Classic carbureted and early fuel-system engines
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