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CP247
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BrandTOPRAN
MPN623 903
OE refs3
SKU0301-623 903

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Details

SpecificationValue
BrandTOPRAN
Number of pins3 -pin connector

OE/OEM numbers (3)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE ZJ2018100. The red ring marks where this part installs on the vehicle.

PART — Others
OthersPosition main

About this product

The TOPRAN Ignition Coil (623 903) is a professional-grade replacement component engineered for long service life and reliable operation across all conditions your vehicle encounters. The part is built to the following specification: Number of pins: Cast Iron -pin connector, Ignition Coil: 70, Supplementary Article/Info 2: 846, Connector Shape: Cast Iron. Each dimension is checked against the OEM reference to ensure the component seats and functions correctly first time. Verified to fit MAZDA models. All compatibility data is cross-checked against the TecDoc database — select your vehicle to confirm the part matches your specific engine and year. This part supersedes original equipment references: 0880186, 0 986 221 092, 10660, 12163 and 36 more. Matching these numbers confirms a like-for-like replacement with no loss of function. TOPRAN is a recognised supplier of automotive ignition components to independent workshops and dealer networks across Europe. All parts are sourced from authorised distribution channels and carry full manufacturer traceability — you receive exactly the same component supplied to professional garages and dealer workshops. If fitment or specifications do not match your vehicle, our technical team can help identify the correct alternative — use the vehicle selector or contact us with your VIN for a guaranteed-fit recommendation. Replacing worn components on schedule preserves your vehicle's safety, reliability, and resale value — and aftermarket parts from established brands deliver OEM-equivalent performance at a fraction of the dealer price. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.

Ignition Coil buying guide

Why replace this part?

Ignition coils transform battery voltage into the high voltage needed to create a spark at the spark plug. A failing coil causes misfires, rough running, and can damage the catalytic converter if left unaddressed.

Signs you need a replacement

  • Engine misfires
  • rough idle
  • loss of power
  • poor fuel economy
  • check engine light with misfire diagnostic codes
  • difficulty starting

When to replace

No fixed interval — replace when symptoms or diagnostic codes indicate failure. Some mechanics recommend replacing all coils together.

Installation difficulty:Moderate — requires basic tools and mechanical knowledge

About TOPRAN

TOPRAN, part of the Hans Thomsen Group headquartered in Hamburg, Germany, is a growing independent aftermarket brand focused on providing quality parts at accessible prices. TOPRAN offers a comprehensive range covering engine, cooling, electrical, braking, and body components for European vehicles. All TOPRAN products are manufactured to meet OE specifications and undergo quality testing before distribution. Combining German quality management with competitive pricing, TOPRAN is an excellent choice for cost-conscious motorists and workshops who do not want to compromise on part quality.

Suitable cars

Equivalent products (38)

Show all 38 OE numbers
ASHUKI by PalidiumM980-35
BBTIC17126
BRECAV132.002
BREMI20686£44.99
CHAMPIONBAEA489
DIPASPORTBBA313N
EFI AUTOMOTIVE155194
ERA880385
EUROCABLEDC-1336
FACET9.6416
FISPA85.30424
HERTH+BUSS JAKOPARTSJ5373003
HOFFER8010660
INTERMOTOR12163
JAPANPARTSBO-303
JAPKO78303£33.99
METZGER AUTOTEILE0880186
MOTAQUIPLVCL1160
NGK49068£69.99
OSSCA16713
QUINTON HAZELLXIC8539
SIDAT85.30424
STELLOX61-00138-SX
TESLACL905
TRISCAN8860 50021
VALEO245358£127.99
VEMOV32-70-0018
WAICUF2163
WALKER921-2113
WILMINK GROUPWG1012458

Ignition Coil TOPRAN 623 903compatible car models

Car modelsMAZDA: 2 (DE, DH), 3 (BL), 3 (BM, BN), 3 Saloon (BK), 3 Saloon (BL), 3 Saloon (BM, BN)
Engines1.3 (DE3FS); 1.6 MZR; 1.6 (BM4, BN4); 1.6 (BK12); 1.6 MZR (BL12); 1.6
Year of manufacture1999-2019
Manufacturer article number (MPN)623 903
OE part numbers133936, ZJ20 18 100, ZJ20 18 100A
Compatibility check

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Description and what's included

TOPRAN 623903 . Connector Shape: 3. Ignition Coil: 70. Number of pins: 3 -pin connector. Supplementary Article/Info 2: 846

What's included:
  • 1x Ignition coil
Shipping, returns, warranty

Free UK delivery on orders over £99.00. Express and standard shipping available.

  • Standard delivery: 2-5 business days
  • Express delivery: 1-2 business days
  • Free returns within 14 days
  • All parts backed by manufacturer warranty

Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.

Frequently Asked Questions

Is this Ignition Coil compatible with my car?

This Ignition Coil fits MAZDA vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.

What specifications does this TOPRAN Ignition Coil have?

This TOPRAN Ignition Coil has the following specifications: Number of pins: 3 -pin connector; Ignition Coil: 70; Supplementary Article/Info 2: 846; Connector Shape: 3. Check the full specifications table above for complete details.

What OE part numbers does this Ignition Coil replace?

This Ignition Coil replaces OE part numbers: 133936, ZJ20 18 100, ZJ20 18 100A. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a Ignition Coil cost?

This TOPRAN Ignition Coil is available for £31.99. Ignition Coil prices vary depending on brand, specifications, and vehicle compatibility. TOPRAN parts offer a balance of quality and value, backed by our 14-day money-back guarantee.

How do I know when to replace my Ignition Coil?

Watch for engine misfires, rough idle, reduced power, poor fuel economy, difficulty starting, or the check engine light with misfire codes.

What tools do I need to replace a Ignition Coil?

Tools needed: 8mm or 10mm socket, ratchet, electrical contact cleaner, dielectric grease, OBD-II scanner (to identify the misfiring cylinder). Difficulty: Moderate DIY. Safety warning: Disconnect the battery negative terminal before removing ignition coils -- the secondary voltage from a coil-on-plug unit can exceed 40,000 V and cause serious injury.

Can I use this part as a replacement for OE 133936?

Yes, this TOPRAN Ignition Coil is a direct replacement for OE part number 133936. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.

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