Bosch HR8KII33V 9655 Spark Plug

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Rating

4.5 / 5 Overall
Bosch	HR8KII33V
Brand	Code
5.0 / 5 Materials
Iridium	Iridium
Ground electrode	Center electrode
3.5 / 5 Design
Standard	Fine Wire
Ground type	Center type

Specifications

1.3mm (.050")	8
Gap	Heat range
⌀14mm	1.25mm
Thread diameter	Thread pitch
17.5mm (.689")	16mm (5/8")
Reach	Hex size
Tapered	Solid
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Same specs (2)

Products that have identical characteristics that impact interchangability

HR8DPP33V

Platinum

3.8/ 5

.050"17.5mm, ⌀14x1.25HR 8

242229737

Copper

2.9/ 5

.050"17.5mm, ⌀14x1.25HR 8

Bigger gap (3)

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

HR8KII33Y

Iridium

-

4.5/ 5

.059"17.5mm, ⌀14x1.25HR 8

HR8DPP33Y

Platinum

3.8/ 5

.059"17.5mm, ⌀14x1.25HR 8

HR8DPP30Y

Copper-Platinum

3.5/ 5

.059"17.5mm, ⌀14x1.25HR 8

One step colder (5)

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

HR7DII33V

Iridium

-

4.5/ 5

.050"17.5mm, ⌀14x1.25HR 7

HR7KII33V

Iridium

-

4.5/ 5

.050"17.5mm, ⌀14x1.25HR 7

HR7DPP33V

Platinum

3.8/ 5

.050"17.5mm, ⌀14x1.25HR 7

HR6KII30V

Copper-Iridium

3.8/ 5

.050"17.5mm, ⌀14x1.25HR 6

HR7DPP30V OSN

Copper-Platinum

3.5/ 5

.050"17.5mm, ⌀14x1.25HR 7