SKU: 21171470086

HP Copper Spark Plug - Shorty - 0416S-4

Sale price$44.96 Regular price$49.95
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Description

HP Copper Spark Plug - Shorty - 0416S-4Overview: ACCEL's patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3 16 in to 3 8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain

Overview:

ACCEL's patented race proven spark plugs in a Shorty configuration. The overall length has been reduced 3/16 in to 3/8 in (depending on the specific spark plug) to gain critical air gap between the spark plug boot and the exhaust manifold or header tube. This helps eliminate burning the spark plug boot or dimpling the header tube. The shorter spark plug length also can make it easier to install an remove the spark plugs in certain applications where there is not a lot of room to fit a socket or move a wrench around. ACCEL Shorty Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL Shorty Spark Plugs are gapable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL Shorty Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.

Features:

  • Shorty Spark Plugs For Tubular Exhaust Headers
  • Eliminates Dimpling Headers For Added Clearance
  • Improves Spark Plug Access To Fit Socket Or Wrench
  • Shorter Overall Plug Length Vs. OE Style Plug
  • Copper Core Center Electrode
  • Projected Tip
  • Helps Eliminate Burned Spark Plug Boots
  • Shorty Header Spark Plug

Application:

Year Make Model Submodel Engine Size
1972 Plymouth Fury Sport Suburban 440/7.2 V8
1972 Plymouth Fury Suburban 440/7.2 V8
1973 Plymouth Fury 440/7.2 V8
1972 - 1973 Plymouth Fury I Base 440/7.2 V8
1973 Plymouth Gran Fury Base 440/7.2 V8
1969 Plymouth GTX 440/7.2 V8
1970 - 1971 Plymouth Road Runner 440/7.2 V8
1970 - 1971 Dodge Charger 500 440/7.2 V8
1971 Dodge Charger Super Bee 440/7.2 V8
1972 Dodge Charger 440/7.2 V8
1970 Dodge Coronet Base 440/7.2 V8
1970 Dodge Coronet Deluxe 440/7.2 V8
1970 Dodge Coronet R/T 440/7.2 V8
1970 Dodge Coronet 500 440/7.2 V8
1970 Dodge Coronet 440 440/7.2 V8
1970 Dodge Coronet Super Bee 440/7.2 V8
1970 Dodge Monaco 440/7.2 V8
1970 - 1973 Dodge Polara 440/7.2 V8
1972 Plymouth Fury Custom Suburban 440/7.2 V8
1970 Dodge Challenger Base 440/7.2 V8
1970 Dodge Challenger R/T 440/7.2 V8
1970 - 1971 Dodge Charger Base 440/7.2 V8
1970 - 1971 Dodge Charger R/T 440/7.2 V8
1971 Dodge Charger Special Edition 440/7.2 V8
1965 - 1966 Buick Skylark 401/6.6 V8
1974 Plymouth Fury I Base 400/6.6 V8
1974 Dodge Charger 400/6.6 V8
1974 Dodge Coronet Base 400/6.6 V8
1974 Dodge Coronet Custom 400/6.6 V8
1974 Dodge Coronet Crestwood 400/6.6 V8
1968 - 1969 Oldsmobile Cutlass 350/5.7 V8
1972 - 1973 Oldsmobile Cutlass Supreme 350/5.7 V8
1969 Oldsmobile Delta 88 Base 350/5.7 V8
1969 Oldsmobile Delta 88 Custom 350/5.7 V8
1970 - 1973 Oldsmobile Delta 88 350/5.7 V8
1969 Oldsmobile F85 350/5.7 V8
1969 Oldsmobile Vista Cruiser 350/5.7 V8
1987 Chevrolet Camaro Iroc-Z 350/5.7 V8
1986 - 1987 Chevrolet Corvette 350/5.7 V8
1970 GMC Jimmy 307/5 V8
1986 - 1987 Buick Regal Limited 307/5 V8
1986 - 1987 Buick Regal Base 307/5 V8
1986 - 1990 Chevrolet Caprice 307/5 V8
1985 - 1987 Oldsmobile Cutlass Salon 307/5 V8
1985 - 1987 Oldsmobile Cutlass Supreme 307/5 V8
1988 Oldsmobile Cutlass Supreme Classic 307/5 V8
1988 Oldsmobile Cutlass Supreme Classic Brougham 307/5 V8
1986 - 1987 Buick Regal Limited 305/5 V8
1986 - 1987 Buick Regal Base 305/5 V8
1986 - 1990 Chevrolet Caprice 305/5 V8
1985 - 1987 Oldsmobile Cutlass Supreme 305/5 V8
1968 - 1969 Chrysler 300
1965 - 1966 Buick Gran Sport
1968 - 1969 Chrysler New Yorker

Specs:

Brand ACCEL
Emission Code 2
GAP .035"
Heat Range 6
Hex Size 5/8"
Length Shorty
Product Type Spark Plug
Projected Tip Yes
Qty 4
Reach .750"
Resistor Yes
Seat Type Gasket (Flat)
Style Copper Core
Thread Size 14mm
Weight 4.75
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21171470086

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Chris
Boise, US
★★★★★ 5
That it fits
Just as good as the factory and over half cheaper
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Reviewed in the United States on April 30, 2026
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RUGRAD9093
Grantham, US
★★★★★ 5
Very Good At Capturing Debris Of All Sizes
I have been using this for my 2015 Acura RDX for several years and each time I replace it, the old filter seems to do the job in capturing big and small debris.
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Reviewed in the United States on June 29, 2025
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Hannah
New York, US
★★★★★ 5
Great oil
Size: 1 Quart, Style: 6-Pack, Configuration: Euro LX 0W-30
Great oil I always use for my vw atlas. I even got an oil analysis after 8k miles and was told it looks great and could be ran even longer.
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Reviewed in the United States on May 15, 2026
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apex
Grantham, US
★★★★★ 5
This oil is hard to find locally and arrived on time.
Size: 1 Quart, Style: 6-Pack, Configuration: Euro LX 0W-30
This oil is hard to find locally. It arrived on time and every bottle was well sealed so not a drop leaked. It also was priced very fairly.
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Reviewed in the United States on April 8, 2026
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jim
Whiting, US
★★★★★ 5
This product is saying that it was not yet delivered, but it was delivered.
Size: 1 Quart, Style: 6-Pack, Configuration: Euro LX 0W-30
The product is a very good product, just like all Pennzoil synthetic oil that I have used.
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Reviewed in the United States on February 6, 2026

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