CADILLAC STS Spark Plugs

Spark Plugs, Iridium TT, Tapered Seat, 14mm Thread, 18mm Reach, Resistor, Each

Part Number: DNP-4713

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

• $10 Summit Bucks

Spark Plugs, Iridium Long Life, Gasket Seat, 14mm Thread, 26.5mm Reach, Resistor, Each

Part Number: DNP-3421

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

• $10 Summit Bucks

Spark Plugs, Iridium TT, Gasket Seat, 14mm Thread, 26.5mm Reach, Resistor, Each

Part Number: DNP-4704

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

• $10 Summit Bucks

Spark Plugs, Platinum TT, Tapered Seat, 14mm Thread, 18mm Reach, Resistor, Each

Part Number: DNP-4511

Not Yet Reviewed

Estimated Ship Date: Monday 3/9/2026 if shipped by air

• $10 Summit Bucks

Spark Plug, Iridium Power, IT16, 14mm Thread, 18.00mm Reach, Tapered Seat, Universal, Each

Part Number: DNP-5325

Not Yet Reviewed

Estimated Ship Date: Monday 3/9/2026 if shipped by air

• $10 Summit Bucks

Spark Plugs, Iridium TT, Tapered Seat, 14mm Thread, 25mm Reach, Resistor, Each

Part Number: DNP-4718

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/9/2026 if shipped by air

• $10 Summit Bucks

Spark Plugs, Iridium Power, Tapered Seat, 14mm Thread, 25mm Reach, Resistor, Each

Part Number: DNP-5338

Not Yet Reviewed

Estimated Ship Date: Monday 3/9/2026 if shipped by air

• $10 Summit Bucks