Spark Plugs for 2 & 4 Cycle Kart Engines
We offer a variety of spark plugs for 2-cycle and 4-stroke racing kart engines.
Denso W-Series Decoder:
W = 14mm thread, 13/16" hex
2nd and 3rd Digits: Heat range (see chart below)
E = 3/4" Reach - F = 1/2" Reach
SU = Standard Tip, U-grooved ground electrode
SZU = Standard Tip, Platinum, U-grooved ground electrode
Recommended plug gap is 0.8mm / 0.031"
Denso Q-Series Decoder:
Q = 14mm thread, 5/8" hex
2nd and 3rd Digits: Heat range (see chart below)
RU = Resistor, U-grooved ground electrode
PRU = Projected Tip, Resistor, U-grooved ground electrode
RZU = Resistor, Platinum Tip, U-grooved ground electrode
11 = Recommended plug gap is 1.1mm / 0.043"
| Denso Heat Range Chart | |||||
|---|---|---|---|---|---|
| Hotter ← → Colder | |||||
| 16 | 20 | 24 | 27 | 29 | 31 |
Recent Top Seller for this product group | |
| Denso W24FSU Std. Tip Spark Plug for Briggs Raptor The Denso W24FSU is a medium-cold spark plug for Briggs and Stratton Raptor 4-stroke kart racing engines. 14mm threads (13/16 hex), standard tip with 1/2 inch reach. |
| Image | Part No. | Description | Price | Status |
|---|---|---|---|---|
 | Clearance! Save 40% ND W16FSU | $1.43 | In Stock | |
 | Clearance! Save 40% ND W24FSU | $1.43 | In Stock | |
 | Clearance! Save 40% ND Q16RU11 | $1.49 | In Stock | |
 | Clearance! Save 40% ND Q20RU11 | $1.49 | In Stock | |
 | Clearance! Save 40% ND Q22PRU11 | $1.49 | In Stock | |
 | Clearance! Save 40% ND Q16RZU11 | $4.19 | In Stock | |
 | Clearance! Save 40% ND Q20RZU11 | $4.49 | In Stock |
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