Ignition Coil HART 521 377
Ignition Coil HART 521 377. Fits 38 car models (FORD, MAZDA). Replaces 57 OE numbers.

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Specification. From the manufacturer's data.
- Brand
- HART
- Category
- Ignition Coil
- MPN
- 521 377
- SKU
- 5251-521 377
- GTIN / EAN
- 5901219424562
- What's included
- 1x Ignition coil
OE numbers. The originals this part replaces.
Numbers the vehicle makers and other brands use for this part. Only a confirmed OE number links to its own page; other brands' equivalents are under “Equivalent products”.
- FORD1008886
- FORD1008887
- FORD1018139
- FORD1018140
- FORD1078349
- FORD12029CA
- FORD1649031
- FORD1649067
- MAZDA1E03-18-T51B
- MAZDA1E03-18-T52B
- MAZDA1E03-18-T53B
- MAZDA1E03-18-T54B
Show all 57 OE numbers
- MAZDA1E05-18-100
- MAZDA1E05-18-100A
- MAZDA1E08-18-10X
- FORD5008193
- FORD6181956
- FORD6497191
- FORD6503277
- FORD6503278
- FORD6503279
- FORD6503280
- FORD6503377
- FORD6594655
- FORD6684760
- FORD6823318
- FORD6860288
- FORD6860289
- FORD88F-12029-A1A
- FORD88SF-12029-A1A
- FORD88SF-12029-A2A
- FORD88SF-12029-AA
- FORD89BF-12024-A1B
- FORD8SF-12029-A1A
- FORD928F-12029-CA
- FORD938F-12024-DA
- FORD96FB-12257-AB
- MAZDAC201-18-100B
- FORDE8TF-12029-AA
- FORDE8TZ-12029-A
- FORDE9TF-12029-AA
- FORDF1VU-12029-A1A
- FORDF1VU-12029-A2A
- FORDF1VY-12029-A
- FORDF37U-12029-AA
- FORD / MAZDAF37Z-12029-A
- FORDF5LU-12029-AA
- FORDF5LY-12029-A
- FORDF5OU-12029-AA
- FORDF5OY-12029-A
- FORDF5OY-12029-B
- FORDF5RZ-12029-C
- FORDF5RZ-12029-D
- MAZDAFSD7-18-100
- FORDT101952
- MAZDAZZM0-18-100
- MAZDAZZMO-18-100
Where this part fits
Original-fit position for OE 88SF12029A2A. The red ring marks where this part installs on the vehicle.

Compatible cars. FORD, MAZDA, 38 models.
Matched from the manufacturer's data.
| Model | Engines | Years |
|---|---|---|
| FORD33 models | ||
| FORD ESCORT CLASSIC (AAL, ABL) | 1.6 16V | 1998–2000 |
| FORD ESCORT CLASSIC Turnier (ANL) | 1.6 16V | 1999–2000 |
| FORD ESCORT IV (GAF, AWF, ABFT) | 1.1, 1.3, 1.3 (GAF), 1.4, 1.6, 1.6 i | 1983–1994 |
| FORD ESCORT IV Convertible (ALF) | 1.4, 1.6 i, 1.6 XR3i | 1986–1992 |
| FORD ESCORT IV Express (AVF) | 1.1, 1.3, 1.4 i, 1.6 | 1986–1990 |
| FORD ESCORT IV Turnier (AWF, AVF) | 1.3, 1.4, 1.6 i | 1985–1990 |
FORD27 more models
| Model | Engines | Years |
|---|---|---|
| FORD ESCORT V (AAL, ABL) | 1.3, 1.4, 1.6, 1.6 i 16V, 1.8 16V XR3i, 1.8 XR3i 16V 4x4 | 1990–1996 |
| FORD ESCORT V Convertible (ALL, BJ2) | 1.4, 1.4 i, 1.6, 1.6 16V XR3i, 1.6 i 16V, 1.8 16V XR3i | 1990–1995 |
| FORD ESCORT V Express (AVF) | 1.3, 1.4 | 1990–1994 |
| FORD ESCORT V Saloon (AFL) | 1.3, 1.4, 1.6 i 16V, 1.8 i 16V | 1993–1995 |
| FORD ESCORT V Turnier (ANL) | 1.3, 1.4, 1.6, 1.6 i 16V, 1.8 16V, 1.8 i 16V | 1990–1995 |
| FORD ESCORT VI (GAL, AAL, ABL) | 1.3, 1.4, 1.6 16V, 1.6 16V 4x4, 1.6 i 16V, 1.8 16V, 1.8 16V (EDA, EHC) | 1995–2002 |
| FORD ESCORT VI Convertible (ALL) | 1.4, 1.6 16V XR3i, 1.8 16V XR3i | 1994–2000 |
| FORD ESCORT VI Estate Van (AVL) | 1.3, 1.4 | 1995–2001 |
| FORD ESCORT VI Saloon (GAL, AFL) | 1.3, 1.4, 1.6 i 16V, 1.8 16V | 1995–2002 |
| FORD ESCORT VI Turnier (GAL, ANL) | 1.3, 1.4, 1.6 16V, 1.6 i 16V, 1.8 16V | 1995–2002 |
| FORD FIESTA Box Body/MPV (F3L, F5L) | 1.3 | 1989–1996 |
| FORD FIESTA Box Body/MPV (J5, J3) | 1.3, 1.4 i | 1996– |
| FORD FIESTA III (GFJ) | 1.0, 1.1, 1.3, 1.3 Cat, 1.4, 1.6, 1.6 i 16V, 1.6 Turbo (FBJT), 1.6 XR2i, 1.8 16V, 1.8 XR2i 16V | 1989–1997 |
| FORD FIESTA IV (JA, JB) | 1.0 i, 1.25 i 16V, 1.3 i, 1.4 i 16V | 1995–2006 |
| FORD KA (RB) | 1.3 i | 1996–2008 |
| FORD MONDEO I (GBP) | 1.6 i 16V, 1.8 i 16V, 1.8 i 16V 4x4, 2.0 i 16V, 2.0 i 16V 4x4 | 1993–1996 |
| FORD MONDEO I Saloon (GBP) | 1.6 i 16V, 1.8 i 16V, 2.0 i 16V, 2.0 i 16V 4x4 | 1993–1996 |
| FORD MONDEO I Turnier (BNP) | 1.6 i 16V, 1.8 i 16V, 1.8 i 16V 4x4, 2.0 i 16V, 2.0 i 16V 4x4 | 1993–1996 |
| FORD MONDEO II (BAP) | 1.6 i, 1.6 i 16V, 1.8 i, 2.0 i | 1996–2000 |
| FORD MONDEO II Saloon (BFP) | 1.6 i, 1.6 i 16V, 1.8 i, 2.0 i | 1996–2000 |
| FORD MONDEO II Turnier (BNP) | 1.6 i, 1.6 i 16V, 1.8 i, 2.0 i | 1996–2000 |
| FORD ORION II (AFF) | 1.3, 1.4, 1.6 i, 1.6 i Cat | 1985–1990 |
| FORD ORION III (GAL) | 1.3, 1.4, 1.6, 1.6 i, 1.6 i 16V, 1.8 i 16V | 1990–1996 |
| FORD PUMA (EC) | 1.4 16V, 1.7 16V | 1997–2002 |
| FORD SIERRA II (GBG, GB4) | 1.6 i, 1.8 | 1987–1993 |
| FORD SIERRA II Hatchback (GBC, GBG) | 1.6 i, 1.8 | 1987–1993 |
| FORD SIERRA II Turnier (BNG) | 1.6 i, 1.8 | 1987–1993 |
MAZDA5 models
| Model | Engines | Years |
|---|---|---|
| MAZDA 121 III (JASM, JBSM) | 1.25, 1.3 | 1996–2003 |
| MAZDA 626 V (GF) | 1.8 (GF8P), 1.9, 2.0 (GFEP, GF12), 2.0 (GFEP) | 1997–2006 |
| MAZDA 626 V Hatchback (GF) | 1.8 (GF8P), 1.9, 1.9 (GF8P), 2.0 (GFEP) | 1997–2002 |
| MAZDA 626 V Station Wagon (GW) | 1.8 (GW8W), 1.9, 2.0 (GWEW), 2.0 H.P. (GWEW) | 1998–2003 |
| MAZDA MPV II (LW) | 2.0 (LWEW) | 1999–2006 |
Always verify compatibility with your vehicle before ordering.
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Common OE numbers for this part
Common original equipment numbers linked to replacement-part pages.
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2-year warranty against manufacturing defects on all parts, counted from delivery. 14-day money-back guarantee if the part doesn't fit your vehicle. Delivery terms
We ship from the EU to 201 countries. Deliveries within the EU carry no customs charges; outside the UK and the EU, the destination country may charge import duties and taxes, paid on delivery. Delivery times and prices by country
Delivery times to EU countries (working days)
Austria 4–7, Belgium 4–7, Bulgaria 5–9, Croatia 5–9, Cyprus 4–19, Czechia 4–7, Denmark 4–8, Estonia 3–4, Finland 6–10, France 5–8, Germany 3–5, Greece 6–10, Hungary 4–7, Ireland 5–9, Italy 5–9, Latvia 2–3, Lithuania 2–3, Luxembourg 4–7, Malta 4–9, Netherlands 4–7, Poland 3–6, Portugal 6–10, Romania 4–8, Slovakia 4–7, Slovenia 4–8, Spain 6–9, Sweden 5–10