T: +8615609213525
E: 15829336298@139.com
E: 15829336298@139.com
Room 1212-G107, Unit 2, Building 1, Block A, Shenglong Plaza, No. 80 Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province
| Quantity: | |
|---|---|
K1A00-3705061A
Sinotruk HOWO
| Attribute | Description |
|---|---|
| Part Name | Natural Gas Ignition Coil / Spark Coil / Coil-on-Plug (COP) |
| OEM Number | K1A00-3705061A (also written as K1A003705061A) |
| Type | Independent Ignition System (Coil-on-Plug Design) — one coil per cylinder |
| Output Voltage | Up to 25 kV (kilovolts) — ensures strong spark under high compression |
| Primary Input Voltage | 12V DC (from vehicle battery/ECU control circuit) |
| Winding Material | High-purity copper wire with low resistance and excellent conductivity |
| Insulation Material | High-temperature epoxy resin + glass fiber insulation — prevents flashover |
| Housing Material | Heat-resistant ABS engineering plastic + metal shielding casing |
| Operating Temperature Range | -40°C to +105°C (resistant to under-hood heat buildup) |
| Weight | Approx. 0.4 – 1.0 kg |
| Function | Converts low-voltage signal from ECU into high-voltage pulse to fire spark plug |
| Sealing Level | IP65-rated — dustproof and water-resistant |
| Condition | Brand new (OEM fresh stock or premium aftermarket) |
Name1
Name2
Professional Installation Required
Involves handling high-voltage components and accessing tight spaces near the engine head.
Must be performed by trained technicians familiar with CNG engine systems.
Disconnect Battery Before Work
Prevents electrical shock and protects sensitive ECU circuits.
Wait at least 5 minutes after disconnection.
Use Correct Spark Plugs
Must pair with natural gas-specific double-iridium or platinum spark plugs (e.g., NGK ILKAR7A7, Denso SK20RPR-U).
Standard gasoline plugs will fail quickly.
Inspect Plug Well for Moisture
Remove coil carefully and check for water or oil contamination.
Dry thoroughly before installing new unit.
Avoid Dropping or Impacting
Internal windings can break — never drop the coil on hard surfaces.
Ensure Full Seating and Locking
Push firmly until clip clicks into place.
Loose connection causes intermittent faults.
Check Wiring Harness Condition
Inspect for cracked insulation, rodent damage, or chafing.
Repair or replace damaged wiring.
Do Not Clean With Solvents
Avoid alcohol, acetone, or brake cleaner — can degrade housing or seals.
Wipe gently with dry cloth only.
Replace One at a Time (for Diagnosis)
Swap suspected coils between cylinders to confirm misfire movement.
Storage Advice
Store upright in dry indoor environment.
Keep protective cap on terminals until installation.
| Attribute | Description |
|---|---|
| Part Name | Natural Gas Ignition Coil / Spark Coil / Coil-on-Plug (COP) |
| OEM Number | K1A00-3705061A (also written as K1A003705061A) |
| Type | Independent Ignition System (Coil-on-Plug Design) — one coil per cylinder |
| Output Voltage | Up to 25 kV (kilovolts) — ensures strong spark under high compression |
| Primary Input Voltage | 12V DC (from vehicle battery/ECU control circuit) |
| Winding Material | High-purity copper wire with low resistance and excellent conductivity |
| Insulation Material | High-temperature epoxy resin + glass fiber insulation — prevents flashover |
| Housing Material | Heat-resistant ABS engineering plastic + metal shielding casing |
| Operating Temperature Range | -40°C to +105°C (resistant to under-hood heat buildup) |
| Weight | Approx. 0.4 – 1.0 kg |
| Function | Converts low-voltage signal from ECU into high-voltage pulse to fire spark plug |
| Sealing Level | IP65-rated — dustproof and water-resistant |
| Condition | Brand new (OEM fresh stock or premium aftermarket) |
Name1
Name2
Professional Installation Required
Involves handling high-voltage components and accessing tight spaces near the engine head.
Must be performed by trained technicians familiar with CNG engine systems.
Disconnect Battery Before Work
Prevents electrical shock and protects sensitive ECU circuits.
Wait at least 5 minutes after disconnection.
Use Correct Spark Plugs
Must pair with natural gas-specific double-iridium or platinum spark plugs (e.g., NGK ILKAR7A7, Denso SK20RPR-U).
Standard gasoline plugs will fail quickly.
Inspect Plug Well for Moisture
Remove coil carefully and check for water or oil contamination.
Dry thoroughly before installing new unit.
Avoid Dropping or Impacting
Internal windings can break — never drop the coil on hard surfaces.
Ensure Full Seating and Locking
Push firmly until clip clicks into place.
Loose connection causes intermittent faults.
Check Wiring Harness Condition
Inspect for cracked insulation, rodent damage, or chafing.
Repair or replace damaged wiring.
Do Not Clean With Solvents
Avoid alcohol, acetone, or brake cleaner — can degrade housing or seals.
Wipe gently with dry cloth only.
Replace One at a Time (for Diagnosis)
Swap suspected coils between cylinders to confirm misfire movement.
Storage Advice
Store upright in dry indoor environment.
Keep protective cap on terminals until installation.
