The 1987 Maserati Biturbo has 15 ignition parts with verified fitment on this page — 3 part types and 6 brands, covering the 2.5L V6 Turbocharged engine. Each part includes a manufacturer part number and application notes.
On the 1987 Maserati Biturbo, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. All 15 listed parts are Spark Plug (13 parts), Spark Plug Non-Fouler (1 part) and Spark Plug Wire (1 part).
Every part on this page is matched to the 2.5L V6 Turbocharged — the only engine offered in the 1987 Maserati Biturbo.
The most listed brands for 1987 Maserati Biturbo ignition parts are NGK (5 parts), CHAMPION (4 parts) and ACDELCO (3 parts), plus 3 more brands. Quality grades include Copper / Nickel, Iridium and Double Platinum.
3 parts on this 1987 Maserati Biturbo page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including ACDELCO R42XLS (Spark Plug) and NGK 5534 (Spark Plug). Click any part number to see every vehicle that part fits.
Spark Plug
Summary: Notes include pre-set gaps of 0.025", 0.028", 0.03", 0.032", 0.035" and 0.041". Replacement brands in this table include NGK, CHAMPION and ACDELCO.
Copper / Nickel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular | R42XLS | 🇺🇸 US 🇨🇦 CA | ProfessionalConventional | View on Amazon |
| NGK Popular | 5534 | 🇺🇸 US 🇨🇦 CA | StandardPre-Set Gap: 0.032" | View on Amazon |
| NGK Popular | 3923 | 🇺🇸 US 🇨🇦 CA | StandardPre-Set Gap: 0.032" | View on Amazon |
| CHAMPION | 315 | 🇺🇸 US 🇨🇦 CA | Copper PlusPre-Set Gap: 0.025" | View on Amazon |
| CHAMPION | 332 | 🇺🇸 US 🇨🇦 CA | Copper PlusPre-Set Gap: 0.025" | View on Amazon |
| CHAMPION | 3321 | 🇺🇸 US 🇨🇦 CA | Copper Plus | View on Amazon |
Double Platinum (lasts up to 3x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 41804 | 🇺🇸 US 🇨🇦 CA | ProfessionalDouble Platinum | View on Amazon |
| NGK | 3200 | 🇺🇸 US 🇨🇦 CA | Laser PlatinumPre-Set Gap: 0.028" | View on Amazon |
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMPION | 9804 | 🇺🇸 US 🇨🇦 CA | IridiumPre-Set Gap: 0.03" | View on Amazon |
| NGK | 6684 | 🇺🇸 US 🇨🇦 CA | Iridium IXPre-Set Gap: 0.032" | View on Amazon |
| NGK | 4055 | 🇺🇸 US 🇨🇦 CA | Iridium IXPre-Set Gap: 0.032" | View on Amazon |
| SKP | SP1041 | 🇺🇸 US 🇨🇦 CA | Tapered Ground Electrode with Platinum Chip | View on Amazon |
Platinum (lasts up to 2x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 4 | 🇺🇸 US 🇨🇦 CA | ProfessionalRapidfire | View on Amazon |
This table covers the spark plugs for this engine. Typical signs include misfire under load, rough idle, or a flashing check-engine light. Verify the gap even on pre-gapped plugs, and replace coil boots that come off a high-mileage engine.
13 Spark Plug parts for the 1987 Maserati Biturbo come from 4 brands — NGK, CHAMPION, ACDELCO and 1 other brand. The "Popular" part is ACDELCO R42XLS.
The Copper / Nickel section lists 6 options from CHAMPION, NGK and ACDELCO — grouped under the catalog's "Copper / Nickel" designation — the notes column spells out what sets them apart. ACDELCO R42XLS is listed in this group.
The Double Platinum (lasts up to 3x longer than Copper / Nickel) section lists 2 options from ACDELCO and NGK — grouped under the catalog's "Double Platinum (lasts up to 3x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. ACDELCO 41804 is listed in this group.
In the Iridium (lasts up to 4x longer than Copper / Nickel) grade, NGK, CHAMPION and SKP supply 4 parts: grouped under the catalog's "Iridium (lasts up to 4x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is CHAMPION 9804.
The Platinum (lasts up to 2x longer than Copper / Nickel) section lists 1 option from ACDELCO — grouped under the catalog's "Platinum (lasts up to 2x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. ACDELCO 4 is listed in this group.
Spark Plug Non-Fouler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN | 42004 | 🇺🇸 US 🇨🇦 CA | 14mm Gasket Seat Long Reach | View on Amazon |
This table covers the non-foulers that space a spark plug away from oil fouling.
One part is listed for the 1987 Maserati Biturbo — DORMAN 42004.
Spark Plug Wire
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WALKER PRODUCTS | 9241341 | 🇺🇸 US 🇨🇦 CA | Direct FitSet | View on Amazon |
This table covers the Spark Plug wires.
One part is listed for the 1987 Maserati Biturbo — WALKER PRODUCTS 9241341.
Buying Ignition Parts for a 1987 Maserati Biturbo
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Confirm you have the 2.5L V6 Turbocharged engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Spark Plug and Spark Plug Non-Fouler .
Frequently Asked Questions
How many ignition parts fit the 1987 Maserati Biturbo?
Our catalog currently lists 15 ignition parts for the 1987 Maserati Biturbo across 3 subcategories and 6 brands, covering the 2.5L V6 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 1987 Maserati Biturbo?
Common symptoms include misfires under load, rough idle, flashing check-engine light, or poor starting in damp weather. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What spark-plug gap is listed for the 1987 Maserati Biturbo?
Notes on this page include pre-set gaps of 0.025", 0.028", 0.03", 0.032", 0.035" and 0.041". Still verify against spec — even “pre-gapped” plugs should be checked before they go in.
What should I replace at the same time?
Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 1987 Maserati Biturbo was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 1987 Maserati Biturbo?
Every part on this page is matched to the 2.5L V6 Turbocharged engine. Then gap matters even on “pre-gapped” plugs — verify against spec, and replace coil boots when they come off a high-mileage engine. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1987 Maserati Biturbo
Ignition Parts for Other Maserati Biturbo Years
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