Fiat 500, Abarth 500 / 595 / 695, Alfa MiTo & Jeep Renegade — 1.4 T-Jet Performance Ignition Coils
The Alfa 4C coil upgrade — done right. For years the only T-Jet ignition upgrade was a borrowed coil from the Alfa Romeo 4C / Giulietta QV — swap in the higher-output part, hope you got a good one, run without warranty. It works, but it means cross-referencing part numbers, no cover if it fails, and pot-luck on quality. The Mantis MTP-1018 is that upgrade, engineered and warrantied: one OE plug-and-play coil, UK-engineered around Mantis' neodymium magnetic core, delivering 12% more spark energy. Same fit, same connector — no coding, no compromise, no leap of faith.
- Years
- 2007 – 2024
- Chassis
- 312 (500) · 199 (Grande Punto) · 940 (Giulietta) · 356 (MiTo) · BU (Renegade)
- Engine code
- 198A4000 · 940A1000 · 940B1000 · 940B7000 (MultiAir)
- Engine
- 1.4 T-Jet / 1.4 MultiAir 4-cyl turbo
- Power
- 135 – 180 bhp
- Coils needed
- 4 × Fiat / Abarth 1.4 T-Jet MultiAir Performance Ignition Coil (500, MiTo, Renegade)
Set includes all 4 coils. Only need one? Choose "Just 1 coil" if you're replacing a single failed unit.
Signs your 1.4 T-Jet & 1.4 MultiAir 4-cyl turbo needs new coils
- Misfire codes P0301–P0304 on OBDII (very common on ageing T-Jet)
- Cold-start stumble — classic Abarth / MiTo symptom
- Rough idle first-thing, especially in winter
- Loss of pull under boost, especially between 2,500–4,500 rpm
- Occasional CEL that clears on the next start
Installation notes
Direct plug & play — no coding, no dealer tools required. Remove the plastic engine cover, disconnect the coil connectors (push-tab, then pull), single 8mm bolt per coil, coils lift straight up. Replace as a set of 4 — mixed-age coils cause uneven spark and the ECU pulls timing to compensate, killing the performance benefit. Torque to 8 Nm. Total install: 10–15 minutes on a 500 Abarth, similar across the range.
Common questions
Why not just fit the cheaper Alfa 4C coil like everyone on the forums says?
You can — but it's a part-number gamble with no warranty and variable quality depending on which Alfa 4C coil you happen to end up with. MTP-1018 is purpose-made to that higher-output spec, fits the same way, and is covered for 2 years. It's the proper version of the swap Abarth owners have been doing for years.
Do I need a remap to feel it?
No. A stronger, more complete burn helps stock and tuned cars alike — most noticeable on cold starts and at the top of the rev range. It complements a map (Squadra, Alfaholics, APR, EVOMS); it doesn't require one.
Will one part really fit all those models — 500, MiTo, Giulietta, Renegade?
Yes — they all share the FCA 1.4 T-Jet / MultiAir coil-on-plug design. Same physical coil, same connector, same wiring. Always check the OE number stamped on your existing coil against our cross-reference list below before ordering — it should be one of 55270223, 55233019, or 71744820.
This coil also fits
Full application list — FCA 1.4 T-Jet / MultiAir platform:
- Fiat 500 / 500C / 500L T-Jet & Abarth (2007+)
- Fiat 500X 1.4T (2014+)
- Abarth 500 / 595 / 695 (all variants — Turismo, Competizione, esseesse, 70° Anniversario)
- Abarth Grande Punto / Punto Evo
- Fiat Bravo II 1.4 T-Jet 150 (2007–2014)
- Fiat Linea 1.4 T-Jet
- Fiat Tipo 1.4 T-Jet (2015+)
- Fiat Doblò 1.4 T-Jet
- Alfa Romeo MiTo 1.4T (955)
- Alfa Romeo Giulietta 1.4 TB MultiAir (940, 2010–2020)
- Lancia Delta III 1.4 T-Jet
- Lancia Ypsilon 1.4T
- Jeep Renegade 1.4 MultiAir (BU, 2014–2018)
- Jeep Compass MP 1.4 MultiAir (2017+)
- Dodge Dart 1.4T (2013–2016)
- Fiat 124 Spider / 124 Spider Abarth 1.4T (2016+)
OE cross-references
These are the original manufacturer part numbers this coil directly replaces. Check the number stamped on your existing coil against this list before ordering to confirm your fitment.
Ready to fit your Fiat / Abarth / Alfa Romeo / Lancia / Jeep 1.4 T-Jet & 1.4 MultiAir 4-cyl turbo?
Full set · £119.96 · UK dispatch · Direct plug & play