The 1977 Triumph Spitfire has 53 ignition parts with verified fitment on this page — 9 part types and 17 brands, covering the 1.5L L4 engine. Each part includes a manufacturer part number and application notes.
The ignition system on the 1977 Triumph Spitfire delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. The largest groups are Spark Plug (26 parts), Spark Plug Wire (9 parts) and Ignition Coil (7 parts). The other 6 part types cover the remaining 11 parts.
The 1977 Triumph Spitfire came with a single engine, the 1.5L L4, and every part is verified against it.
17 brands supply ignition parts for the 1977 Triumph Spitfire, led by STANDARD MOTOR PRODUCTS (9 parts), DENSO (7 parts) and NGK (7 parts), plus 14 more brands. Quality grades include Copper / Nickel, Standard Replacement and Economy.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1977 Triumph Spitfire. 10 parts have it, including SPECTRA PREMIUM C632 (Ignition Coil) and CHAMPION 404 (Spark Plug). Each part number opens a page with every vehicle that part fits.
Ballast Resistor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | RU10T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | RU10 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Ballast resistors.
2 Ballast Resistor parts for the 1977 Triumph Spitfire come from STANDARD MOTOR PRODUCTS.
The Economy section lists 1 option from STANDARD MOTOR PRODUCTS — the catalog's value-priced group. STANDARD MOTOR PRODUCTS RU10T is listed in this group.
In the Standard Replacement grade, STANDARD MOTOR PRODUCTS supplies 1 part: built to original-equipment specification. A representative part number is STANDARD MOTOR PRODUCTS RU10.
Part numbers include STANDARD MOTOR PRODUCTS RU10T and STANDARD MOTOR PRODUCTS RU10.
Distributor Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | LU430 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS | 5D1042 | 🇺🇸 US 🇨🇦 CA | Distributor # 41697, 41698with Electronic Ignition | View on Amazon |
This table covers the Distributor caps. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
2 Distributor Cap parts are listed for the 1977 Triumph Spitfire, from STANDARD MOTOR PRODUCTS and WELLS.
Part numbers include STANDARD MOTOR PRODUCTS LU430 and WELLS 5D1042.
Distributor Reluctor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS | 1A4052 | 🇺🇸 US 🇨🇦 CA | Distributor # 41697, 41698with Electronic Ignition | View on Amazon |
This table covers the Distributor reluctors.
One part is listed for the 1977 Triumph Spitfire — WELLS 1A4052.
Distributor Rotor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | LU324 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS | 4R1189 | 🇺🇸 US 🇨🇦 CA | Distributor # 41697, 41698with Electronic Ignition | View on Amazon |
This table covers the Distributor rotors. Typical signs include shudder under braking, or a lip at the outer edge. Do not put new pads on a rotor that is below minimum thickness.
2 Distributor Rotor parts are listed for the 1977 Triumph Spitfire, from STANDARD MOTOR PRODUCTS and WELLS.
Listed part numbers: STANDARD MOTOR PRODUCTS LU324 and WELLS 4R1189.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SPECTRA PREMIUM Popular | C632 | 🇺🇸 US 🇨🇦 CA | Pack | View on Amazon |
| HOLSTEIN | 2IGC0146 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Popular | 5C1057 | 🇺🇸 US 🇨🇦 CA | Requires External Resistor: YES | View on Amazon |
| BECK/ARNLEY | 1788074 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS | UF2 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UNITED MOTOR PRODUCTS | C2 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS | 9201017 | 🇺🇸 US 🇨🇦 CA | Single Coil | View on Amazon |
This table covers the coils that fire each spark plug. Typical signs include a misfire that follows one cylinder, a snap in damp weather, or a coil that is swollen or cracked. Swap a suspect coil with a neighbor to confirm, then replace boots that tore on the way off.
7 Ignition Coil parts for the 1977 Triumph Spitfire come from 7 brands — SPECTRA PREMIUM, HOLSTEIN, WELLS and 4 other brands. The "Popular" part is SPECTRA PREMIUM C632.
The Economy section: 2 options from SPECTRA PREMIUM and HOLSTEIN. SPECTRA PREMIUM C632 is listed in this group.
Standard Replacement: 5 parts, from WELLS, BECK/ARNLEY, STANDARD MOTOR PRODUCTS and 2 other brands. A representative part number is WELLS 5C1057.
Part numbers include SPECTRA PREMIUM C632, HOLSTEIN 2IGC0146 and WELLS 5C1057, among others listed above.
Ignition Conversion Kit
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | LX806 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS | 1A4179 | 🇺🇸 US 🇨🇦 CA | Delco Distributor # D204, D200, Distributor marked "made in England"12 Volt | View on Amazon |
| WELLS | 1A4084 | 🇺🇸 US 🇨🇦 CA | Lucas Distributor # 47DM4, Factory Electronic Ignition, Except Distributor # 41812A12 Volt | View on Amazon |
This table covers the Ignition Conversion kits.
3 Ignition Conversion Kit parts are listed for the 1977 Triumph Spitfire, from WELLS and STANDARD MOTOR PRODUCTS.
Part numbers include STANDARD MOTOR PRODUCTS LX806, WELLS 1A4179 and WELLS 1A4084.
Spark Plug
Summary: Notes include pre-set gaps of 0.024", 0.025", 0.030", 0.031", 0.032", 0.035", 0.036", 0.040" and 0.044". Replacement brands in this table include NGK, DENSO and CHAMPION.
Copper / Nickel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMPION Popular | 404 | 🇺🇸 US 🇨🇦 CA | Copper PlusPre-Set Gap: 0.035" | View on Amazon |
| DENSO Popular | 3031 | 🇺🇸 US 🇨🇦 CA | U-Groove ConventionalPre-Set Gap: 0.032" | View on Amazon |
| NGK Popular | 1233 | 🇺🇸 US 🇨🇦 CA | V-PowerPre-Set Gap: 0.032" | View on Amazon |
| NGK Popular | 7734 | 🇺🇸 US 🇨🇦 CA | StandardPart Number: BPR5ES | View on Amazon |
| ACDELCO | R44F | 🇺🇸 US 🇨🇦 CA | ProfessionalConventional | View on Amazon |
| ACDELCO | R43XLS | 🇺🇸 US 🇨🇦 CA | ProfessionalConventional | View on Amazon |
| AUTOLITE | 275 | 🇺🇸 US 🇨🇦 CA | Copper Non-ResistorPre-Set Gap: 0.025" | View on Amazon |
| BOSCH | 7905 | 🇺🇸 US 🇨🇦 CA | NickelPre-Set Gap: 0.031" | View on Amazon |
| CHAMPION | 38 | 🇺🇸 US 🇨🇦 CA | Copper PlusPre-Set Gap: 0.032" | View on Amazon |
| CHAMPION | 4041 | 🇺🇸 US 🇨🇦 CA | Copper PlusClassification: Champion Copper Plus | View on Amazon |
| DENSO | 3027 | 🇺🇸 US 🇨🇦 CA | Pre-Set Gap: 0.032" | View on Amazon |
| MOTORCRAFT | SP436AX | 🇺🇸 US 🇨🇦 CA | Copper | View on Amazon |
| NGK | 7327 | 🇺🇸 US 🇨🇦 CA | V-Power PlugPre-Set Gap: 0.036" | View on Amazon |
| NGK | 4006 | 🇺🇸 US 🇨🇦 CA | StandardPart Number: BPR5ES Solid | 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 |
| AUTOLITE | APP64 | 🇺🇸 US 🇨🇦 CA | Double PlatinumHex Size: 13/16 In | View on Amazon |
| CHAMPION | 7415 | 🇺🇸 US 🇨🇦 CA | Double Platinum PowerPre-Set Gap: 0.032" | View on Amazon |
| DENSO | 3004 | 🇺🇸 US 🇨🇦 CA | Double PlatinumPre-Set Gap: 0.044" | View on Amazon |
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Popular | 6597 | 🇺🇸 US 🇨🇦 CA | Iridium IXPre-Set Gap: 0.032" | View on Amazon |
| DENSO | 5305 | 🇺🇸 US 🇨🇦 CA | Iridium PowerHex Size: 20.6 mm | View on Amazon |
| DENSO | 4708 | 🇺🇸 US 🇨🇦 CA | Iridium TTHex Size: 20.6 mm | View on Amazon |
| NGK | 95525 | 🇺🇸 US 🇨🇦 CA | Iridium IX | View on Amazon |
| SKP | SP1042 | 🇺🇸 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 |
|---|---|---|---|---|
| NGK Popular | 7082 | 🇺🇸 US 🇨🇦 CA | G-PowerPre-Set Gap: 0.040" | View on Amazon |
| DENSO | 4501 | 🇺🇸 US 🇨🇦 CA | Platinum TTTerminal Cap is Non-Removable | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 44XLS | 🇺🇸 US 🇨🇦 CA | Non Resistor | 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.
26 Spark Plug parts are listed for the 1977 Triumph Spitfire, from NGK, DENSO, CHAMPION and 5 other brands. CHAMPION 404 carries the "Popular" badge. Grades run from Copper / Nickel through Platinum (lasts up to 2x longer than Copper / Nickel); Copper / Nickel is the most populated section, led by NGK, CHAMPION, DENSO and 4 other brands.
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.
This group shows a single part: DORMAN 42004.
Spark Plug Wire
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| B&B | S428224 | 🇺🇸 US 🇨🇦 CA | Suppressor Wire Set | View on Amazon |
| STANDARD MOTOR PRODUCTS | 4500 | 🇺🇸 US 🇨🇦 CA | SetFederal Wire | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | 55437 | 🇺🇸 US 🇨🇦 CA | IntermotorSet | View on Amazon |
| DENSO | 6714114 | 🇺🇸 US 🇨🇦 CA | Spark Plug Wire Set7mm | View on Amazon |
| UNITED MOTOR PRODUCTS | 9403 | 🇺🇸 US 🇨🇦 CA | SetUnited-Packard | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | 29437 | 🇺🇸 US 🇨🇦 CA | Pro SeriesSet | View on Amazon |
| ACDELCO | 9044Q | 🇺🇸 US 🇨🇦 CA | GoldSet | View on Amazon |
| B&B | M428224 | 🇺🇸 US 🇨🇦 CA | Platinum Class Laser Mag | View on Amazon |
| WALKER PRODUCTS | 9241092 | 🇺🇸 US 🇨🇦 CA | Direct FitSet | View on Amazon |
This table covers the Spark Plug wires.
9 Spark Plug Wire parts for the 1977 Triumph Spitfire come from 6 brands — STANDARD MOTOR PRODUCTS, B&B, DENSO and 3 other brands. The "Popular" part is STANDARD MOTOR PRODUCTS 55437.
The Economy section: 2 options from B&B and STANDARD MOTOR PRODUCTS. B&B S428224 is listed in this group.
In the Premium grade, STANDARD MOTOR PRODUCTS, DENSO and UNITED MOTOR PRODUCTS supply 3 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is STANDARD MOTOR PRODUCTS 55437.
Standard Replacement: 4 parts, from STANDARD MOTOR PRODUCTS, ACDELCO, B&B and 1 other brand. A representative part number is STANDARD MOTOR PRODUCTS 29437.
Listed part numbers: STANDARD MOTOR PRODUCTS 55437, B&B S428224 and STANDARD MOTOR PRODUCTS 4500, plus the other parts above.
Buying Ignition Parts for a 1977 Triumph Spitfire
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Confirm you have the 1.5L L4 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 Wire .
Frequently Asked Questions
How many ignition parts fit the 1977 Triumph Spitfire?
Our catalog currently lists 53 ignition parts for the 1977 Triumph Spitfire across 9 subcategories and 17 brands, covering the 1.5L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 1977 Triumph Spitfire?
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 1977 Triumph Spitfire?
Notes on this page include pre-set gaps of 0.024", 0.025", 0.030", 0.031", 0.032", 0.035", 0.036", 0.040" and 0.044". 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 1977 Triumph Spitfire 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 1977 Triumph Spitfire?
Every part on this page is matched to the 1.5L L4 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 1977 Triumph Spitfire
Ignition Parts for Other Triumph Spitfire Years
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