Accel U-Groove Spark Plugs

Product images may differ from actual product appearance.

Put More Fire In The Hole!

One of the hottest features of Accel spark plugs is the unique U-Groove ground electrode. This specially design electrode was developed to meet the demand for improved ignitability and increased fuel combustion. The U-Groove design results in less flame dissipation. It gives the flame a groove to grow in, creating a larger flame front for a more complete combustion even in the case of lean air/fuel mixture. Effectively, it produces greater firing energy. On the other hand, conventional plugs squash the flame. This is called ''quenching effect'' and leads to spark plug misfire and rough idle. This has a negative effect on the spark. With the U-Groove ground electrode, firing can be greatly improved without increasing the spark gap. The U-Groove ground electrode also a larger spark nucleus which stimulates faster combustion, producing more power for higher RPM's of longer duration. The end result is an increase in performance with improved throttle response and, due to a more complete burn, greater fuel efficiency and reduced emissions. Click here for a close up of the U-Groove design.

Note: The higher the Part Number, the hotter the plug. Ex: 111-111 is the coolest plug and 111-117 is the hottest in that specific style spark plug.

Click Here for Accel Spark Plug Cross Reference

12mm Thread, 3/4'' Reach, 12mm Hex, Gasket Seat - Non-Projected Tip

Accel Spark Plugs 882 - Accel U-Groove Spark Plugs

111-882

Resistor Plug, Motorcycle, .035'' Nominal Gap, Each

$5.99
Ships
in 3 days

14mm Thread, .460'' Reach, 5/8'' Hex, Tapered Seat - Non-Projected Tip

Accel Spark Plugs 261 - Accel U-Groove Spark Plugs

111-261

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 262 - Accel U-Groove Spark Plugs

111-262

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 263 - Accel U-Groove Spark Plugs

111-263

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 265 - Accel U-Groove Spark Plugs

111-265

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 566 - Accel U-Groove Spark Plugs

111-566

Resistor Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 8178 - Accel U-Groove Spark Plugs

111-8178

Resistor Race Plug, .035'' Nomial Gap, 8/pkg of 566

$14.99
Ships
in 12 days

14mm Thread, .460'' Reach, 5/8'' Hex, Tapered Seat - Projected Tip

Accel Spark Plugs 272 - Accel U-Groove Spark Plugs

111-272

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 274 - Accel U-Groove Spark Plugs

111-274

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 276 - Accel U-Groove Spark Plugs

111-276

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 276S - Accel U-Groove Spark Plugs

111-276S

Shorty Race Plug, .035'' Nomial Gap, Each

$2.99
Ships

Accel Spark Plugs 574 - Accel U-Groove Spark Plugs

111-574

Resistor Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 574S - Accel U-Groove Spark Plugs

111-574S

Shorty Resistor Race Plug, .035'' Nomial Gap, Each

$3.99
Ships

Accel Spark Plugs 576 - Accel U-Groove Spark Plugs

111-576

Resistor Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 576S - Accel U-Groove Spark Plugs

111-576S

Shorty Resistor Race Plug, .035'' Nomial Gap, Each

$3.99
Ships

Accel Spark Plugs 586 - Accel U-Groove Spark Plugs

111-586

Ressistor Race Plug, .060'' Pre-Gapped 576 Plug, Each

$2.69
Ships
in 12 days

Accel Spark Plugs 8171 - Accel U-Groove Spark Plugs

111-8171

Standard Race Plug, .035'' Nomial Gap, 8/pkg of 274

$14.99
Ships

Accel Spark Plugs 8172 - Accel U-Groove Spark Plugs

111-8172

Standard Race Plug, .035'' Nomial Gap, 8/pkg of 276

$14.99
Ships

Accel Spark Plugs 8179 - Accel U-Groove Spark Plugs

111-8179

Resistor Race Plug, .035'' Nomial Gap, 8/pkg of 576

$14.99
Ships

Accel Spark Plugs 8180 - Accel U-Groove Spark Plugs

111-8180

Ressistor Race Plug, .060'' Pre-Gapped 576 Plug, 8/pkg of 586

$14.99
Ships

Accel Spark Plugs 8198 - Accel U-Groove Spark Plugs

111-8198

Shorty Resistor Race Plug, .035'' Nomial Gap, 8/pkg of 574S

$29.99
Ships
in 12 days

Accel Spark Plugs 8199 - Accel U-Groove Spark Plugs

111-8199

Shorty Resistor Race Plug, .035'' Nomial Gap, 8/pkg of 576S

$29.99
Ships

14mm Thread, .708'' Reach, 5/8'' Hex, Tapered Seat - Projected Tip

Accel Spark Plugs 514 - Accel U-Groove Spark Plugs

111-514

Resistor Race Plug, Ford Full Thread, .044'' Nominal Gap, Each

$2.69
Ships

Accel Spark Plugs 516 - Accel U-Groove Spark Plugs

111-516

Resistor Race Plug, Ford Full Thread, .044'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 526 - Accel U-Groove Spark Plugs

111-526

Resistor Race Plug, .060'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs P524S - Accel U-Groove Spark Plugs

111-P524S

Platinum Shorty Race Plug, .060'' Nomial Gap, Each

$11.99
Manufacturer's
Availability
Date Unknown

Accel Spark Plugs P526S - Accel U-Groove Spark Plugs

111-P526S

Platinum Shorty Race Plug, .060'' Nomial Gap, Each

$11.99
Ships

14mm Thread, .750'' Reach, 13/16'' Hex, Gasket Seat - Projected Tip

Accel Spark Plugs 111 - Accel U-Groove Spark Plugs

111-111

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 112 - Accel U-Groove Spark Plugs

111-112

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 113 - Accel U-Groove Spark Plugs

111-113

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 114 - Accel U-Groove Spark Plugs

111-114

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 116 - Accel U-Groove Spark Plugs

111-116

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 117 - Accel U-Groove Spark Plugs

111-117

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

14mm Thread, 3/4'' Reach, 13/16'' Hex, Gasket Seat - Non-Projected Tip

Accel Spark Plugs 141 - Accel U-Groove Spark Plugs

111-141

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 142 - Accel U-Groove Spark Plugs

111-142

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 143 - Accel U-Groove Spark Plugs

111-143

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 146 - Accel U-Groove Spark Plugs

111-146

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships
in 3 days

14mm Thread, 3/4'' Reach, 13/16'' Hex, Gasket Seat - Projected Tip

Accel Spark Plugs 494 - Accel U-Groove Spark Plugs

111-494

Resistor Race Plug, .035'' Nomial Gap, Each

$2.69
Manufacturer's
Availability
Date Unknown

Accel Spark Plugs 496 - Accel U-Groove Spark Plugs

111-496

Resistor Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 8181 - Accel U-Groove Spark Plugs

111-8181

Resistor Race Plug, .035'' Nomial Gap, 8/pkg of 496

$14.99
Ships
in 3 days

Accel Spark Plugs 8187 - Accel U-Groove Spark Plugs

111-8187

Resistor Race Plug, .035'' Nomial Gap, 4/pkg of 494

$12.99
Ships
in 3 days

14mm Thread, 3/4'' Reach, 5/8'' Hex, Gasket Seat - Non-Projected Tip

Accel Spark Plugs 761 - Accel U-Groove Spark Plugs

111-761

Standard Race Plug, .035'' Nomial Gap, Each

$2.99
Ships

Accel Spark Plugs 762 - Accel U-Groove Spark Plugs

111-762

Standard Race Plug, .35" Nomial Gap, Each

$2.99
Ships

14mm Thread, 3/4'' Reach, 5/8'' Hex, Gasket Seat - Partial Projected Tip

Accel Spark Plugs 763 - Accel U-Groove Spark Plugs

111-763

Standard Race Plug, .035'' Nomial Gap, Each

$2.99
Ships
in 12 days

Accel Spark Plugs 765 - Accel U-Groove Spark Plugs

111-765

Standard Race Plug, .035'' Nomial Gap, Each

$2.99
Ships

14mm Thread, 3/4'' Reach, 5/8'' Hex, Gasket Seat - Projected Tip

Accel Spark Plugs 414S - Accel U-Groove Spark Plugs

111-414S

Resistor Race Plug, .035'' Nominal Gap, Shorty Style Plug, Each

$3.99
Ships

Accel Spark Plugs 416 - Accel U-Groove Spark Plugs

111-416

Resistor Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 416S - Accel U-Groove Spark Plugs

111-416S

Shorty Race Plug, .035'' Nomial Gap, Each

$3.99
Ships

Accel Spark Plugs 736 - Accel U-Groove Spark Plugs

111-736

Resistor Race Plug, .035'' Nomial Gap, Each

Special Plug for Honda Engines

$2.69
Ships

Accel Spark Plugs 784 - Accel U-Groove Spark Plugs

111-784

ISO Resistor Plug, .044'' Nomial Gap, Each

$1.99
Ships

Accel Spark Plugs 786 - Accel U-Groove Spark Plugs

111-786

ISO Resistor Plug, .044'' Nomial Gap, Each

$1.99
Ships

Accel Spark Plugs 8192 - Accel U-Groove Spark Plugs

111-8192

ISO Resistor Plug, .044'' Nomial Gap, 4-Pack

$13.99
Ships
in 12 days

14mm Thread, 3/8'' Reach, 13/16'' Hex, Gasket Seat - Non-Projected Tip

Accel Spark Plugs 123 - Accel U-Groove Spark Plugs

111-123

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 124 - Accel U-Groove Spark Plugs

111-124

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

14mm Thread, 3/8'' Reach, 13/16'' Hex, Gasket Seat - Projected Tip

Accel Spark Plugs 134 - Accel U-Groove Spark Plugs

111-134

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 137 - Accel U-Groove Spark Plugs

111-137

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 138 - Accel U-Groove Spark Plugs

111-138

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 437 - Accel U-Groove Spark Plugs

111-437

Resistor Version of 111-137, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 437S - Accel U-Groove Spark Plugs

111-437S

Shorty Resistor Version of 111-137, .035'' Nomial Gap, Each

$3.99
Ships
in 12 days

Accel Spark Plugs 8170 - Accel U-Groove Spark Plugs

111-8170

Standard Race Plug, .035'' Nomial Gap, 8/pkg of 137

$14.99
Ships

Accel Spark Plugs 8197 - Accel U-Groove Spark Plugs

111-8197

Shorty Resistor Version of 111-137, .035'' Nomial Gap, 8/pkg of 437S

$29.99
Ships

18mm Thread, .460'' Reach, 13/16'' Hex, Tapered Seat - Projected Tip

Accel Spark Plugs 375 - Accel U-Groove Spark Plugs

111-375

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 378 - Accel U-Groove Spark Plugs

111-378

Standard Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 675 - Accel U-Groove Spark Plugs

111-675

Resistor Race Plug, .035'' Nomial Gap, Each

$2.69
Ships

Accel Spark Plugs 8173 - Accel U-Groove Spark Plugs

111-8173

Standard Race Plug, .035'' Nomial Gap, 8/pkg of 378

$14.99
Ships

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