Home› Ignition > Secondary Ignition› Denso 3305 Spark Plug
Denso 3305 Spark PlugOE Quality 60-Day Returns
Denso 3305 Spark Plug - view 1
Denso 3305 Spark Plug - view 2
Part #: 3305

Denso 3305 Spark Plug

U-Groove Conventional
⚙️ 1 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$11.28Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦U-Groove Conventional
🚗Fitment: Porsche, Boxster
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Spark Plug options
Denso 3305 Spark Plug
BrandDenso
Part Number3305
PositionU-Groove Conventional
Resistance5000
Ground Electrode Tip DesignMulti-electrode
Ground ConfigurationMulti-electrode
Ground Electrode Core MaterialNickel
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialNickel
Pre-Gap Size0.9
Ground Electrode Quantity2
Hex Size16.0
Manufacturer Heat Range20
Seat TypeFlat
Reach19.00
Thread Diameter14.00

This part fits 1 vehicles. Search below:

YearMakeModelPositionNotes
1999PorscheBoxsterN/AU-Groove Conventional

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

K20TNR-S9

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

Related Articles