Denso IU24A Spark Plug

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Rating

4.0 / 5 Overall
Denso	IU24A
Brand	Code
4.0 / 5 Materials
Copper	Iridium
Ground electrode	Center electrode
4.0 / 5 Design
Low-Angled	Fine Wire
Ground type	Center type

Specifications

0.9mm (.035")	24
Gap	Heat range
⌀10mm	1mm
Thread diameter	Thread pitch
19mm (3/4")	16mm (5/8")
Reach	Hex size
Gasket	Removable Nut
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

Cross-reference (3)

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

CR8EKPA

Copper-Platinum

3.6/ 5

.031"19mm, ⌀10x1HR 8

CR8EK

Copper

3.3/ 5

.028"19mm, ⌀10x1HR 8

CR8EKB

Copper

3.3/ 5

.028"19mm, ⌀10x1HR 8

Deep reference (1)

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

U24ETR

Copper

3.3/ 5

.028"19mm, ⌀10x1HR 24

One step colder (1)

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

IU27A

Copper-Iridium

-

4.0/ 5

.035"19mm, ⌀10x1HR 27

Two steps colder (1)

Two steps colder spark plugs with same characteristics for heavily modified engines (150-200 hp increase)

IU31A

Copper-Iridium

-

4.0/ 5

.035"19mm, ⌀10x1HR 31