Spark Plugs

Spark Plugs
Catalogue: Issue 3.2
4
About ACDelco
regular spark plugs
ACDelco REGULAR SPARK PLUGS
With coverage for most older vehicles on the road today and robust long-life design, ACDelco Regular Spark Plugs are
an economical choice for solid performance.
Features and Benefits
Copper-core centre electrode that helps provide improved heat transfer to the tip, giving you the reliability you’re
looking for while improving its resistance to low-speed carbon fouling.
Precisely engineered and manufactured to provide everyday reliability and efficient performance.
The hot-tip insulator heats fast and fires hot.
The nickel-chrome alloy on the ground electrode and centre electrode sheathing resists wear from spark erosion
and the corrosive environment of the combustion chamber.
Buttress top insulator
has a long flashover path
Super ceramic insulator
exhibits near-diamond
hardness for durability
Nickel alloy centre electrode
with a copper core
Nickel alloy ground electrode
5
About ACDelco
platinum (rapidfire ) spark plugs
®
ACDelco PLATINUM (RAPIDFIRE®) SPARK PLUGS
Designed for today’s most popular vehicles, ACDelco’s (Rapidfire®) Platinum Spark Plug fits engines using conventional plugs, as well as newer vehicles requiring platinum performance.
Features and Benefits
Ribless insulator that improves the plug-to-boot seal.
Tapered centre wire electrode with a platinum pad reduces the firing diameter and helps improve the firing
efficiency by concentrating and directing energy needed to fire the plug with less voltage.
One-piece integral suppressor seal helps reduce radio frequency interference, meters spark plug energy to help
provide long electrode life and seals against compression leakage.
When compared to regular spark plugs:- Reduced sparking voltage - Greater corrosion protection.
Longer life and improved efficiency over regular plugs.
Ribless insulator improves
plug-to-boot seal
Nickel-plated shell
Tapered and
columned centre
wire electrode with
a platinum pad
Extended firing location for
enhanced combustion
Clipped ground electrode
6
About ACDelco
double platinum spark plugs
ACDelco DOUBLE PLATINUM SPARK PLUGS
An ideal plug for vehicles requiring platinum performance or older vehicles calling for conventional plugs, ACDelco’s
Double Platinum Spark Plugs can give up to 100,000 kms* of service in some applications.
* Maintenance needs vary with different uses and conditions. See vehicle Owner’s Manual for more information.
Features and Benefits
Dual platinum tip for improved resistance to spark erosion and corrosive combustion chamber environment.
A platinum centre electrode and a platinum pad lower the ignition demand voltage.
One-piece integral suppressor seal helps reduce radio frequency interference, meters spark plug energy to help
provide long electrode life and seals against compression leakage.
Designed with a corrosion resistant shell.
Spark gap remains virtually unchanged during the life of the plug.
Ribless insulator improves
plug-to-boot seal
Nickel-plated shell
Platinum tip centre
wire electrode
Platinum tip ground electrode
53
Spark Plug Specifications
regular spark plugs
ACDelco Regular Spark Plugs (Common characteristics - J type electrode, Resistor style except for 42XLS & 43XLS which are a Non Resistor style)
Refer to
Illustration
on page 55
ACDelco
Part #
1
2
3
3
4
5
6
7
8
Max.
Side
Insulator Installed
Spark
Side Wire
Reach Reach
Gap Side Wire
Wire
Barrel
Height
Location
Thickness
(mm) (")
(mm) Projection
Width
Diameter (mm)
(mm)
(mm)
(mm)
(mm)
9
Thread
Pitch
10
IMEP Heat
"Hex Size
Range Value
(Socket
(The lower the
Size heat range the
Inches)"
hotter the plug)
12
13
14
Seat
Type
Terminal
Type
(Solid or
Loose)
Insulator
Profile
(Ribbed or
Smooth)
41602
10.24
50.50
19.05 3/4"
3.38
0.89
6.35
1.52
2.79
M14x1.25
5/8"
320
Flat
Solid
Smooth
41629
10.24
50.98
19.05 3/4"
3.38
0.89
6.35
1.52
2.79
M14x1.25
5/8"
240
Flat
Solid
Smooth
42XLS
12.29
56.49
19.05 3/4"
3.38
0.89
6.50
1.52
2.79
M14x1.25
13/16"
320
Flat
Solid
Ribbed
43XLS
12.20
56.90
19.05 3/4"
3.42
0.70
5.72
1.60
2.60
M14x1.25
13/16"
N/A
Flat
Loose
Ribbed
CR42XLSX
12.20
56.90
19.05 3/4"
3.00
1.10
5.70
1.62
2.70
M14x1.25
13/16"
N/A
Flat
Loose
Ribbed
FR1LS
10.50
50.50
19.05 3/4"
3.38
0.89
6.35
1.52
2.79
M14x1.25
5/8"
375
Flat
Solid
Ribbed
FR2LS
10.50
50.50
19.05 3/4"
2.98
1.00
5.58
1.60
2.70
M14x1.25
5/8"
320
Flat
Solid
Ribbed
FR3LS
10.50
50.50
19.05 3/4"
3.00
1.00
5.30
1.30
2.50
M14x1.25
5/8"
N/A
Flat
Loose
Ribbed
R42LTS
10.50
51.46
17.25 11/16"
3.38
1.12
6.80
1.52
2.79
M14x1.25
5/8"
280
Conical
Solid
Ribbed
R42LTS6
10.50
51.46
17.25 11/16"
3.38
1.52
6.60
1.27
2.79
M14x1.25
5/8"
240
Conical
Solid
Ribbed
R42XLS
12.29
56.49
19.05 3/4"
3.38
0.89
6.50
1.52
2.79
M14x1.25
13/16"
320
Flat
Solid
Ribbed
R43S
12.20
62.56
9.40
3/8"
3.38
0.89
6.10
1.27
2.54
M14x1.25
13/16"
240
Flat
Solid
Ribbed
R43T
10.52
57.79
10.92 7/16"
1.12
1.02
3.90
1.27
2.79
M14x1.25
5/8"
250
Conical
Solid
Ribbed
R43XLS
12.29
56.49
19.05 3/4"
3.38
1.02
6.60
1.52
2.79
M14x1.25
13/16"
275
Flat
Solid
Ribbed
R44LTS6
10.50
51.46
17.25 11/16"
3.38
1.52
7.00
1.27
2.79
M14x1.25
5/8"
240
Conical
Solid
Ribbed
R44TS
10.90
60.25
11.00 7/16"
3.38
1.12
6.50
1.27
2.79
M14x1.25
5/8"
245
Conical
Solid
Ribbed
R44XLS
12.29
56.49
19.05 3/4"
3.38
1.02
6.35
1.27
2.79
M14x1.25
13/16"
250
Flat
Solid
Ribbed
12
13
14
ACDelco Regular Spark Plugs (Common characteristics - J type electrode, Resistor style)
Refer to
Illustration
on page 55
1
2
3
3
4
5
6
7
8
ACDelco
Max.
Side
Insulator Installed
Spark
Side Wire
Part #
Reach Reach
Gap Side Wire
Wire
Barrel
Height
Location
Thickness
(Euro style
(mm) (")
(mm) Projection
width
Diameter (mm)
(mm)
(mm)
numbers)
(mm)
(mm)
9
10
Thread
Pitch
"Hex Size
(Socket
Size Inches)"
Heat Range
(0 = cold,
9 = hot)
Seat
Type
Terminal
Type
(Solid or
Loose)
Insulator
Profile
(Ribbed or
Smooth)
R4600
10.50
53.00
17.50 11/16"
3.00
1.10
5.73
1.60
2.70
M14x1.25
5/8"
4
Conical
Loose
Ribbed
R5602*
10.50
50.20
19.05 3/4"
5.70
0.80
5.80
1.80
3.00
M14x1.25
5/8"
5
Flat
Solid
Smooth
R5610
10.50
50.50
19.05 3/4"
4.90
1.10
7.60
1.60
2.70
M14x1.25
5/8"
5
Flat
Solid
Ribbed
R6602
10.50
53.00
17.50 11/16"
3.00
0.90
5.50
1.60
2.70
M14x1.25
5/8"
6
Conical
Loose
Ribbed
R6606
12.20
56.90
19.05 3/4"
3.08
1.10
5.98
1.80
2.80
M14x1.25
5/8"
6
Flat
Loose
Ribbed
R8602
10.50
50.50
19.05 3/4"
4.80
1.10
7.50
1.60
2.70
M14x1.25
5/8"
8
Flat
Solid
Ribbed
R9601
12.20
56.90
19.05 3/4"
4.48
1.10
7.18
1.60
2.70
M14x1.25
13/16"
9
Flat
Loose
Ribbed
* Two electrodes
54
Spark Plug Specifications
platinum (rapidfire ) spark plugs
®
ACDelco Platinum Spark Plugs (Common characteristics - Resistor style, Solid Terminal type, Smooth Insulator Profile, J type electrode)
Refer to
Illustration
on page 55
ACDelco
Part #
AC2
AC3
AC4
AC5
AC6
AC8
AC14
1
2
3
3
4
5
6
7
8
Insulator
Max.
Side
Installed
Spark
Side Wire
Barrel
Reach Reach
Gap Side Wire
Wire
Height
Location
Thickness
Diameter
(mm) (")
(mm) Projection
Width
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
10.90
10.49
11.76
10.24
10.49
10.49
10.49
62.69
51.38
56.49
50.98
51.38
52.71
51.38
10.92 7/16"
17.25 11/16"
19.05 3/4"
19.05 3/4"
17.25 11/16"
17.25 11/16"
17.25 11/16"
3.38
3.37
3.38
3.38
4.82
3.37
3.37
1.12
1.12
1.02
1.12
1.12
0.89
1.52
6.52
6.52
6.47
6.52
7.97
6.29
6.93
1.27
1.52
1.52
1.52
1.27
1.52
1.27
2.79
2.79
2.79
2.79
2.79
2.79
2.79
9
Thread
Pitch
M14x1.25
M14x1.25
M14x1.25
M14x1.25
M14x1.25
M14x1.25
M14x1.25
10
11
12
Electrode
Enhancements
Seat
Type
220
Single platinum
pad on the center
electrode with corners
of ground electrode
trimmed off
Conical
240
Single platinum
pad on the center
electrode with corners
of ground electrode
trimmed off
Conical
320
Single platinum
pad on the center
electrode with corners
of ground electrode
trimmed off
Flat
280
Single platinum
pad on the center
electrode with corners
of ground electrode
trimmed off
Flat
240
Single platinum
pad on the center
electrode with corners
of ground electrode
trimmed off
Conical
280
Single platinum
pad on the center
electrode with corners
of ground electrode
trimmed off
Conical
240
Single platinum
pad on the center
electrode with corners
of ground electrode
trimmed off
Conical
IMEP Heat
Hex size
Range Value
(Socket
(The lower the
Size heat range the
Inches)
hotter the plug)
5/8"
5/8"
13/16"
5/8"
5/8"
5/8"
5/8"
55
Spark Plug Specifications
double platinum spark plugs
ACDelco Double Platinum Spark Plugs (Common characteristics - Resistor style, Solid Terminal type, Smooth Insulator Profile, J type electrode)
Refer to
Illustration
on page 55
ACDelco
Part #
1
2
3
3
4
5
6
7
8
Insulator
Max.
Side
Installed
Spark
Side Wire
Barrel
Reach Reach
Gap Side Wire
Wire
Height
Location
Thickness
Diameter
(mm) (")
(mm) Projection
Width
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
9
Thread
Pitch
10
IMEP Heat
Hex size
Range Value
(Socket
(The lower the
Size heat range the
Inches)
hotter the plug)
11
12
Electrode
Enhancements
Seat
Type
41800
10.24
50.98
19.05 3/4"
3.38
1.12
6.60
1.52
2.79
M14x1.25
5/8"
275
Platinum pad on the center
electrode with a platinum
pad on the ground electrode
Flat
41801
10.24
50.98
19.05 3/4"
3.38
1.12
6.60
1.52
2.79
M14x1.25
5/8"
320
Platinum pad on the center
electrode with a platinum
pad on the ground electrode
Flat
41802
11.76
56.49
19.05 3/4"
3.38
1.12
6.60
1.52
2.79
M14x1.25 13/16"
275
Platinum pad on the center
electrode with a platinum
pad on the ground electrode
Flat
41804
11.76
56.49
19.05 3/4"
3.38
0.86
6.35
1.52
2.79
M14x1.25 13/16"
320
Platinum pad on the center
electrode with a platinum
pad on the ground electrode
Flat
41805
10.50
52.78
17.25 11/16"
4.83
1.37
7.90
1.27
2.79
M14x1.25
5/8"
245
Platinum pad on the center
electrode with a platinum Conical
pad on the ground electrode
41806
10.24
50.98
19.05 3/4"
4.75
1.12
7.90
1.52
2.79
M14x1.25
5/8"
275
Platinum pad on the center
electrode with a platinum
pad on the ground electrode
41810
10.50
52.78
17.25 11/16"
3.38
1.12
6.50
1.52
2.79
M14x1.25
5/8"
280
Platinum pad on the center
electrode with a platinum Conical
pad on the ground electrode
41814
10.90
49.66
24.94
3.38
1.3
6.70
1.52
2.79
M14x1.25
5/8"
350
Platinum pad on the center
electrode with a platinum Conical
pad on the ground electrode
41825
10.24
52.98
19.05 3/4"
3.38
1.12
6.50
1.52
2.79
M14x1.25
5/8"
320
Platinum pad on the center
electrode with a platinum
pad on the ground electrode
41826
10.90
62.74
10.95 7/16"
3.38
1.78
7.00
1.27
2.79
M14x1.25
5/8"
220
Platinum pad on the center
electrode with a platinum Conical
pad on the ground electrode
41833
11.76
62.56
9.40
3/8"
3.45
0.86
6.10
1.27
2.54
M14x1.25 13/16"
240
Platinum pad on the center
electrode with a platinum
pad on the ground electrode
41834
10.50
55.68
25.00
1"
3.38
1.27
6.17
1.52
2.79
M14x1.25
5/8"
320
Finewire platinum center
electrode with a platinum Conical
pad on the ground electrode
41835
10.24
50.95
25.00
1"
3.38
1.12
6.02
1.52
2.79
M14x1.25
5/8"
320
Finewire platinum center
electrode with a platinum
pad on the ground electrode
41942
10.49
51.38
17.25 11/16"
3.37
1.27
6.25
1.27
2.79
M14x1.25
5/8"
240
Platinum pad on the center
electrode with a platinum Conical
pad on the ground electrode
41963
10.49
52.79
17.25 11/16"
3.37
1.27
6.75
1.27
2.79
M14x1.25
5/8"
280
Finewire platinum center
electrode with a platinum Conical
pad on the ground electrode
1"
Flat
Flat
Flat
Flat
56
Spark Plug Specifications
illustration
13
Detail “B”
1
5
14
2
11
10
6
7
12
4
3
8
9
See Detail “B”
1
ACDelco
Part #
2
3
3
4
5
6
7
8
9
Max.
Side
Insulator Installed
Spark
Side Wire
Reach Reach
Gap Side Wire
Wire
Barrel
Height
Location
Thickness
(mm) (")
(mm) Projection
Width
Diameter (mm)
(mm)
(mm)
(mm)
(mm)
10
Thread
Pitch
11
"Hex Size
(Socket
Electrode
Size - Enhancements
Inches)"
12
13
14
Seat
Type
Terminal
Type
(Solid or
Loose)
Insulator
Profile
(Ribbed or
Smooth)
Spark Plug Specifications
metric / imperial gap conversion table
mm
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
2.0
inches
.016
.020
.024
.028
.032
.036
.040
.044
.048
.052
.056
.060
.064
.080
ACD020913
Available from:
1800 ACDelco
acdelco.com.au