Denso K20TNR-S9 3305 Spark Plug

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Rating

3.1 / 5 Overall
Denso	K20TNR-S9
Brand	Code
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
3.3 / 5 Design
Semi-Surface Discharge	Standard
Ground type	Center type

Specifications

0.9mm (.035")	20
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
19mm (3/4")	16mm (5/8")
Reach	Hex size
Gasket	Solid
Seat	Terminal
2	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Cross-reference (1)

Alternative spark plugs found in cross-reference docs provided by manufacturers

BKR6EK

Copper

3.3/ 5

.035"19mm, ⌀14x1.25HR 6

Deep reference (7)

A second level of cross-reference: if A=B and B=C, then A=C

VK20

Iridium-Platinum

4.2/ 5

.043"19mm, ⌀14x1.25HR 20

FR6LDC

Copper

3.3/ 5

.035"19mm, ⌀14x1.25HR 6

K20TXR

Copper

3.3/ 5

.039"19mm, ⌀14x1.25HR 20

FLR8LDCU

Copper

3.2/ 5

.039"19mm, ⌀14x1.25HR 8

FLR8LDCU+

Copper

3.2/ 5

.039"19mm, ⌀14x1.25HR 8

K20TNR-S

Copper

-

3.1/ 5

.039"19mm, ⌀14x1.25HR 20

3922

Copper

2.9/ 5

.039"19mm, ⌀14x1.25HR 1

Bigger gap (2)

0.1..0.3 mm gap increase for better performance given your ignition system can handle it

K20TNR-S

Copper

-

3.1/ 5

.039"19mm, ⌀14x1.25HR 20

K20PBR-S10

Copper

-

3.1/ 5

.039"19mm, ⌀14x1.25HR 20

One step colder (1)

Colder spark plugs with same characteristics for moderately tuned engines (75–100 hp increase)

K22PBR-S

Copper

-

3.1/ 5

.035"19mm, ⌀14x1.25HR 22