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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4.7 ★★★★★
Based on 14 reviews
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Product Reviews
S
Verified Purchase
S R
Lexington, US
★★★★★ 5
Lots of nice features
Size: 5 FT (2 prong plug), Color: White
664Very nice. Even the slots on the sides will enable a larger than expected plug. Wish they included the screws for mounting. Didn't think it would be a big deal as I always keep the extras from projects, but it would have been a nice touch. If you do mount the power strip, it does reduce the size of the plug it will accommodate on the sides. Also wish I would have purchased the longer cord- NOT the fault of the product. Love the flat angled plug! I'm using it behind an adjustable bed frame that moves several times a night, so knowing I won't accidentally knock it out of the wall is nice. And you can easily use both wall plugs. Also very convenient to connect the USB & USB-c plugs without the bricks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
K
Verified Purchase
Kristine
West Palm Beach, US
★★★★★ 5
Works perfectly for what I needed
Size: 5 FT (2 prong plug), Color: White
We have an older house and I needed a 3 prong plug in our living room and this has absolutely done the job. I love that I can now plug my computer in and as a bonus, I can charge my phone if needed. The cord link is longer than I needed for the living room but worked great for a recent trip.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 20, 2025
R
Verified Purchase
R. W. K.
Boise, US
★★★★★ 5
GOOD VALUE/GOOD PRODUCT
Size: 5 FT (2 prong plug), Color: White
FINE. HOWEVER YOU BETTER UNDERSTAND HOW MANY WATTS EACH DEVICE IS PULLING IF YOU TRY TO USE ALL 12 AC OUTLETS. GOOD VALUE
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
S
Verified Purchase
SP
Louisville, US
★★★★★ 4
Great for behind a dresser
Size: 5 FT (2 prong plug), Color: White
Works great. Plug lays flat against the wall. Doesn't charge great on USB C ports, but it'll get you by. USB charging is 2 out of 5. Quality seems 4 out of 5.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
W
Verified Purchase
wmartinez0776
Natrona Heights, US
★★★★★ 5
Good product
Good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026

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