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Autolite AR51 Spark Plug

Autolite AR51 Spark Plug
Autolite AR51 Spark Plug Image 1
Autolite AR51 Spark Plug

Autolite
Brand:Autolite
Part Number: AR51
UPC: 009100017727
Weight: 0.15 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the Autolite AR51 Spark Plug for your vehicle. Buy now and secure your purchase online!

Autolite Racing spark plugs are engineered with a cut-back ground electrode, anti-corrosive nickel plating, and large ground electrode that deliver better heat transfer, ensuring maximum engine performance on the track.

Features and Benefits:

  • Designed with an anti-corrosive nickel-plating prevents rusting better than black oxide, allowing the plug to maintain its durability and efficiency.
  • Engineered with a cut-back ground electrode that delivers optimal ignitability of the flame kernel and better heat transfer, leading to quicker starts.
  • Its high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength while preventing flash-over.
  • The yttrium-enhanced alloy enables up to 8% reduction in ground wire temperature for colder heat ranges designed to enable performance modifications and handle intense conditions.

Specifications:

Center Electrode Core Material:
Copper
Center Electrode Insulator Tip Projection:
0.133 in.
Center Electrode Insulator Tip Projection:
3.38 mm
Center Electrode Projection:
Mid Projection
Center Electrode Tip Material:
Nickel
Core Nose Length:
0.244 in.
Core Nose Length:
6.2 mm
Electrical Terminal Type:
Non-Removable Nut
Grade Type:
Performance
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Standard
Ground Electrode Tip Material:
Nickel
Hex Size:
13/16 in.
Hex Type:
Hex
Indexed:
No
Insulator Height:
2.223 in.
Insulator Height:
56.46 mm
Insulator Material:
Ceramic
Manufacturer Heat Range:
12
Pre-Gap Size:
0.025 in.
Pre-Gap Size:
0.64 mm
Reach:
0.75 in.
Reach:
19.05 mm
Resistance:
1 Ohm
Resistor Type:
No
Seat Type:
Flat
Thread Diameter:
14 mm
Washer Included:
Yes
Washer Type:
Crush
ACDelco #:
41XLS
ACDelco #:
436XLS
ACDelco #:
438XLS
ACDelco #:
R41CXLS
Accel #:
111
Accel #:
112
Beru #:
14 R-5 DU
Beru #:
14-5 DTU
Beru #:
14-5 DU
Beru #:
14-5 DUO
Beru #:
UX 56
Bosch #:
W3DP0
Bosch #:
W4DP0
Champion Spark Plug #:
315
Champion Spark Plug #:
N6YC
Champion Spark Plug #:
RN4YC
Champion Spark Plug #:
RN6YC
DENSO Auto Parts #:
3274
DENSO Auto Parts #:
W24EP-U
DENSO Auto Parts #:
W24EPR-U
Motorcraft #:
AG092C
Motorcraft #:
AG902
Motorcraft #:
AG902C
NGK #:
2037
NGK #:
BP8ES
NGK #:
BP8ES SOLID
NGK #:
BP8EVX
NGK #:
BPR8EIX
NGK #:
BPR8ES
NGK #:
BPR8EVX
NGK #:
R5672-8
NGK #:
R5672-9
NGK #:
R5672A-9
Splitfire #:
TP6A
Country of Origin:
MX

Select a vehicle to narrow Autolite AR51 Spark Plug fitment info!

Last Updated: 10/05/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes
Alfa Romeo Duetto 1600

1.6L L4 Gas DOHC
4
 
High Performance Racing Non-Resistor
OE Style
Gap .025 (in)
 

Alfa Romeo Duetto 1600



1.6L L4 Gas DOHC High Performance Racing Non-Resistor
OE Style
Gap .025 (in)

4 Per Vehicle
Alfa Romeo Giulia Sprint

1.6L L4 Gas DOHC
4
 
High Performance Racing Non-Resistor
OE Style
Gap .025 (in)
 

Alfa Romeo Giulia Sprint



1.6L L4 Gas DOHC High Performance Racing Non-Resistor
OE Style
Gap .025 (in)

4 Per Vehicle
Alfa Romeo Giulia Sprint

1.6L L4 Gas,
1.6L L4 Gas DOHC
4
 
High Performance Racing Non-Resistor
OE Style
Gap .025 (in)
 

Alfa Romeo Giulia Sprint



1.6L L4 Gas,
1.6L L4 Gas DOHC High Performance Racing Non-Resistor
OE Style
Gap .025 (in)

4 Per Vehicle
Alfa Romeo Giulietta

1.3L L4 Gas
4
 
High Performance Racing Non-Resistor
OE Style
Gap .025 (in)
 

Alfa Romeo Giulietta



1.3L L4 Gas High Performance Racing Non-Resistor
OE Style
Gap .025 (in)

4 Per Vehicle
Ferrari 250 LM

3.3L V12 Gas SOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 250 LM



3.3L V12 Gas SOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 275 GT

3.3L V12 Gas SOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 275 GT



3.3L V12 Gas SOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 275 GTB

3.3L V12 Gas SOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 275 GTB



3.3L V12 Gas SOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 275 GTS

3.3L V12 Gas SOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 275 GTS



3.3L V12 Gas SOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 275 LM

3.3L V12 Gas SOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 275 LM



3.3L V12 Gas SOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 330 GT

4.0L V12 Gas SOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 330 GT



4.0L V12 Gas SOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 330 GTC

4.0L V12 Gas SOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 330 GTC



4.0L V12 Gas SOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 330 GTS

4.0L V12 Gas SOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 330 GTS



4.0L V12 Gas SOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 365 GT

4.4L V12 Gas SOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 365 GT



4.4L V12 Gas SOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 365 GT4

4.4L H12 Gas DOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 365 GT4



4.4L H12 Gas DOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 365 GT4

4.4L V12 Gas DOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 365 GT4



4.4L V12 Gas DOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 365 GT4 BB

4.4L H12 Gas DOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 365 GT4 BB



4.4L H12 Gas DOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 365 GTB/4

4.4L V12 Gas DOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 365 GTB/4



4.4L V12 Gas DOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 365 GTC

4.4L V12 Gas SOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 365 GTC



4.4L V12 Gas SOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 365 GTC/4

4.4L V12 Gas DOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 365 GTC/4



4.4L V12 Gas DOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 365 GTS

4.4L V12 Gas SOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 365 GTS



4.4L V12 Gas SOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 365 GTS/4

4.4L V12 Gas DOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 365 GTS/4



4.4L V12 Gas DOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Ferrari 400 Superamerica

4.0L V12 Gas SOHC
12
 
High Performance Racing Non-Resistor
OE Style
Gap .020 (in)
 

Ferrari 400 Superamerica



4.0L V12 Gas SOHC High Performance Racing Non-Resistor
OE Style
Gap .020 (in)

12 Per Vehicle
Fiat 124

1.6L L4 Gas DOHC
4
 
High Performance Racing Non-Resistor
OE Style
Gap .025 (in)
 

Fiat 124



1.6L L4 Gas DOHC High Performance Racing Non-Resistor
OE Style
Gap .025 (in)

4 Per Vehicle
Fiat 124

1.4L L4 Gas OHV
4
 
High Performance Racing Non-Resistor
OE Style
Gap .025 (in)
 

Fiat 124



1.4L L4 Gas OHV High Performance Racing Non-Resistor
OE Style
Gap .025 (in)

4 Per Vehicle
Fiat 124

1.4L L4 Gas DOHC
4
 
High Performance Racing Non-Resistor
OE Style
Gap .025 (in)
 

Fiat 124



1.4L L4 Gas DOHC High Performance Racing Non-Resistor
OE Style
Gap .025 (in)

4 Per Vehicle
Fiat 125

1.3L L4 Gas OHV
4
 
High Performance Racing Non-Resistor
OE Style
Gap .025 (in)
 

Fiat 125



1.3L L4 Gas OHV High Performance Racing Non-Resistor
OE Style
Gap .025 (in)

4 Per Vehicle
Fiat 1500

1.5L L4 Gas OHV
4
 
High Performance Racing Non-Resistor
OE Style
Gap .025 (in)
 

Fiat 1500



1.5L L4 Gas OHV High Performance Racing Non-Resistor
OE Style
Gap .025 (in)

4 Per Vehicle
Porsche 911

3.3L H6 Gas SOHC Turbo
6
 
High Performance Racing Non-Resistor
OE Style
Gap .024 (in)
 

Porsche 911



3.3L H6 Gas SOHC Turbo High Performance Racing Non-Resistor
OE Style
Gap .024 (in)

6 Per Vehicle
Porsche 911

3.3L H6 Gas SOHC Turbo
6
 
High Performance Racing Non-Resistor
OE Style
Gap .028 (in)
 

Porsche 911



3.3L H6 Gas SOHC Turbo High Performance Racing Non-Resistor
OE Style
Gap .028 (in)

6 Per Vehicle
Porsche 911

2.0L H6 Gas SOHC
6
 
High Performance Racing Non-Resistor
OE Style
Gap .024 (in)
 

Porsche 911



2.0L H6 Gas SOHC High Performance Racing Non-Resistor
OE Style
Gap .024 (in)

6 Per Vehicle
Porsche Carrera

2.0L H4 Gas DOHC
4
 
High Performance Racing Non-Resistor
OE Style
Gap .024 (in)
 

Porsche Carrera



2.0L H4 Gas DOHC High Performance Racing Non-Resistor
OE Style
Gap .024 (in)

4 Per Vehicle