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A7TP Platinum Nickel Marine Spark Plugs 16mm Hex Size 12.7mm Reach

Key Attributes

Brand Name: MS-MARSHAL
Model Number: A7TP
Place of Origin: Ningbo, China
Certification: IATF:16949 ISO:9001
Minimum Order Quantity: 2000 Pcs
Price: TBD
Supply Ability: Annual Capacity: 120M Units
Delivery Time: 45-60days
Payment Terms: T/T
Standard Packaging: 4 pcs/pack, 120 pcs/ctn

Specifications

Highlight Features

A7TP Marine Spark Plugs

,

16mm Marine Spark Plugs

,

12.7mm boat engine spark plugs

Thread Diameter:
10mm
Thread Pitch:
1mm
Seat Type:
Gasket
Resistor:
No
Reach:
12.7mm
Hex Size:
16mm
Ignition Position:
≤3mm
Center Electrode:
Platinum-tipped
Ground Electrode:
Nickel
Product Description
A7TP Platinum-Nickel Marine Spark Plug
Item Specification / Material
Thread Diameter 10 mm
Thread Pitch 1 mm
Seat Type Gasket
Resistor No
Reach 12.7 mm
Hex Size 16 mm
Ignition Position ≤ 3 mm
Center Electrode Platinum-tipped
Ground Electrode Nickel
Key Advantages
  • Concentrated ignition energy for complete combustion and stable idle
  • High-density ceramic insulator with superior dielectric strength
  • Electrodes made of high-performance materials, resistant to high temperature and ablation
  • Heat range matching design optimization for balanced heat dissipation and self-cleaning performance
  • Long service life with competitive operating costs
Frequently Asked Questions
Why upgrade from copper spark plugs to iridium ones?

Iridium spark plugs offer 26% faster starts and more concentrated ignition. They deliver higher horsepower and better fuel efficiency for steady engine performance.

What is the core function of a spark plug?

A spark plug feeds high-voltage current into the combustion chamber to ignite the air-fuel mixture and drive the piston, enabling engine operation.

What causes spark plug fouling?

Fouling happens when fuel, oil or carbon deposits cover the plug insulator. It causes current short circuits, weakens or kills sparks, leading to hard starts and rough engine running.

What is pre-ignition?

Pre-ignition is an abnormal combustion where the air-fuel mixture ignites early via hot chamber spots. It can melt plug electrodes and cause serious, permanent engine damage.

How to find the perfect-fit spark plug for my vehicle?

Our smart matching system precisely matches OEM heat ranges and dimensions, ensuring perfect, hassle-free fit for your vehicle.