The 1978 Saab 99 has 47 ignition parts with verified fitment on this page — 5 part types and 14 brands, covering both the 2.0L L4 and the 2.0L L4 Turbocharged. Each part includes a manufacturer part number and application notes.
The ignition system on the 1978 Saab 99 delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. The largest groups are Spark Plug (20 parts), Distributor Cap (10 parts) and Spark Plug Wire (10 parts). The other 2 part types cover the remaining 7 parts.
The 1978 Saab 99 was sold with both the 2.0L L4 and the 2.0L L4 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1978 Saab 99 ignition parts are STANDARD MOTOR PRODUCTS (9 parts), NGK (7 parts) and CHAMPION (5 parts), plus 11 more brands. Quality grades include Standard Replacement, Copper / Nickel and Premium.
10 parts on this 1978 Saab 99 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including BOSCH 03010 (Distributor Cap) and BOSCH 04038 (Distributor Rotor). Click any part number to see every vehicle that part fits.
Distributor Cap
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | GB423T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| LILAND GLOBAL Fits: 2.0L L4 Turbocharged | GB423LG | 🇺🇸 US 🇨🇦 CA | Tan Brass | View on Amazon |
| LILAND GLOBAL Fits: 2.0L L4 Turbocharged | GB423BLBLG | 🇺🇸 US 🇨🇦 CA | Blue Brass | View on Amazon |
| WELLS Fits: 2.0L L4 Turbocharged | 5D1012A | 🇺🇸 US 🇨🇦 CA | Premium | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Popular Fits: 2.0L L4 Turbocharged | 03010 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Popular Fits: 2.0L L4 Turbocharged | 9251068 | 🇺🇸 US 🇨🇦 CA | Bosch | View on Amazon |
| LILAND GLOBAL Fits: 2.0L L4 Turbocharged | GB423TLG | 🇺🇸 US 🇨🇦 CA | Color: BlackBody Material: PBT | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | GB423 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: 2.0L L4 Turbocharged | 3D1012 | 🇺🇸 US 🇨🇦 CA | Includes Rotor | View on Amazon |
| WELLS Fits: 2.0L L4 Turbocharged | 5D1012 | 🇺🇸 US 🇨🇦 CA | Distributor Cap Contacts Material: Aluminum | 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.
10 Distributor Cap parts for the 1978 Saab 99 come from 5 brands — LILAND GLOBAL, WELLS, STANDARD MOTOR PRODUCTS and 2 other brands. The "Popular" part is BOSCH 03010.
The Economy section lists 1 option from STANDARD MOTOR PRODUCTS — the catalog's value-priced group. STANDARD MOTOR PRODUCTS GB423T is listed in this group.
In the Premium grade, LILAND GLOBAL and WELLS supply 3 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is LILAND GLOBAL GB423LG.
In the Standard Replacement grade, WELLS, BOSCH, WALKER PRODUCTS and 2 other brands supply 6 parts: built to original-equipment specification. A representative part number is BOSCH 03010.
Distributor Rotor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | GB344T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BOSCH Popular Fits: 2.0L L4 Turbocharged | 04038 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Popular Fits: 2.0L L4 Turbocharged | GB344 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| KARLYN / BREMI / STI Fits: 2.0L L4 Turbocharged | 239082 | 🇺🇸 US 🇨🇦 CA | Bremi | View on Amazon |
| LILAND GLOBAL Fits: 2.0L L4 Turbocharged | GB344LG | 🇺🇸 US 🇨🇦 CA | Gray BrassPremium | View on Amazon |
| WELLS Fits: 2.0L L4 Turbocharged | 4R1209 | 🇺🇸 US 🇨🇦 CA | Contact Material: Brass | 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.
6 Distributor Rotor parts for the 1978 Saab 99 come from 5 brands — STANDARD MOTOR PRODUCTS, BOSCH, KARLYN / BREMI / STI and 2 other brands. The "Popular" part is BOSCH 04038.
The Economy section: 1 option from STANDARD MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS GB344T is listed in this group.
Standard Replacement: 5 parts, from BOSCH, STANDARD MOTOR PRODUCTS, KARLYN / BREMI / STI and 2 other brands. A representative part number is BOSCH 04038.
Listed part numbers: BOSCH 04038, STANDARD MOTOR PRODUCTS GB344T and STANDARD MOTOR PRODUCTS GB344, plus the other parts above.
Spark Plug
Summary: Notes include pre-set gaps of 0.025", 0.028", 0.03", 0.031", 0.032", 0.035", 0.036", 0.040", 0.044" and 0.045". Replacement brands in this table include NGK, CHAMPION and DENSO.
Copper / Nickel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMPION Popular Fits: 2.0L L4 Turbocharged | 415 | 🇺🇸 US 🇨🇦 CA | Copper PlusPre-Set Gap: 0.032" | View on Amazon |
| NGK Popular Fits: 2.0L L4 Turbocharged | 4008 | 🇺🇸 US 🇨🇦 CA | StandardPre-Set Gap: 0.032" | View on Amazon |
| ACDELCO Fits: 2.0L L4 Turbocharged | R42XLS | 🇺🇸 US 🇨🇦 CA | ProfessionalConventional | View on Amazon |
| BOSCH Fits: 2.0L L4 Turbocharged | 7911 | 🇺🇸 US 🇨🇦 CA | NickelPre-Set Gap: 0.031" | View on Amazon |
| CHAMPION Fits: 2.0L L4 Turbocharged | 300 | 🇺🇸 US 🇨🇦 CA | Copper PlusPre-Set Gap: 0.032" | View on Amazon |
| CHAMPION Fits: 2.0L L4 Turbocharged | 4151 | 🇺🇸 US 🇨🇦 CA | Copper PlusClassification: Champion Copper Plus Small Engine | View on Amazon |
| DENSO Fits: 2.0L L4 Turbocharged | 3066 | 🇺🇸 US 🇨🇦 CA | U-Groove ConventionalHex Size: 20.6 mm | View on Amazon |
| NGK Fits: 2.0L L4 Turbocharged | 6427 | 🇺🇸 US 🇨🇦 CA | V-PowerPre-Set Gap: 0.032" | View on Amazon |
| NGK Fits: 2.0L L4 Turbocharged | 7131 | 🇺🇸 US 🇨🇦 CA | StandardPre-Set Gap: 0.036" | View on Amazon |
Double Platinum (lasts up to 3x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 2.0L L4 Turbocharged | 41804 | 🇺🇸 US 🇨🇦 CA | ProfessionalDouble Platinum | View on Amazon |
| CHAMPION Fits: 2.0L L4 Turbocharged | 7415 | 🇺🇸 US 🇨🇦 CA | Double Platinum PowerPre-Set Gap: 0.032" | View on Amazon |
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Popular Fits: 2.0L L4 Turbocharged | 6637 | 🇺🇸 US 🇨🇦 CA | Iridium IXPre-Set Gap: 0.032" | View on Amazon |
| CHAMPION Fits: 2.0L L4 Turbocharged | 9804 | 🇺🇸 US 🇨🇦 CA | IridiumPre-Set Gap: 0.03" | View on Amazon |
| DENSO Fits: 2.0L L4 Turbocharged | 5306 | 🇺🇸 US 🇨🇦 CA | Iridium PowerHex Size: 20.6 mm | View on Amazon |
| DENSO Fits: 2.0L L4 Turbocharged | 4709 | 🇺🇸 US 🇨🇦 CA | Iridium TTSolid Terminal | View on Amazon |
| SKP Fits: 2.0L L4 Turbocharged | 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 |
|---|---|---|---|---|
| NGK Popular Fits: 2.0L L4 Turbocharged | 7084 | 🇺🇸 US 🇨🇦 CA | G-PowerPre-Set Gap: 0.040" | View on Amazon |
| BOSCH Fits: 2.0L L4 Turbocharged | 6736 | 🇺🇸 US 🇨🇦 CA | OE Fine Wire PlatinumPre-Set Gap: 0.035" | View on Amazon |
| DENSO Fits: 2.0L L4 Turbocharged | 4502 | 🇺🇸 US 🇨🇦 CA | Platinum TTSolid Terminal | View on Amazon |
| NGK Fits: 2.0L L4 Turbocharged | 6764 | 🇺🇸 US 🇨🇦 CA | Platinumuse Iridium #6637 | 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.
20 Spark Plug parts for the 1978 Saab 99 come from 6 brands — NGK, CHAMPION, DENSO and 3 other brands. The "Popular" part is CHAMPION 415.
The Copper / Nickel section lists 9 options from CHAMPION, NGK, ACDELCO and 2 other brands — grouped under the catalog's "Copper / Nickel" designation — the notes column spells out what sets them apart. CHAMPION 415 is listed in this group.
The Double Platinum (lasts up to 3x longer than Copper / Nickel) section lists 2 options from ACDELCO and CHAMPION — 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, DENSO, NGK, CHAMPION and 1 other brand supply 5 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 NGK 6637.
The Platinum (lasts up to 2x longer than Copper / Nickel) section lists 4 options from NGK, BOSCH and DENSO — grouped under the catalog's "Platinum (lasts up to 2x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. NGK 7084 is listed in this group.
Spark Plug Non-Fouler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 2.0L L4 Turbocharged | 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 1978 Saab 99 — DORMAN 42004.
Spark Plug Wire
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DENSO Fits: 2.0L L4 Turbocharged | 6714016 | 🇺🇸 US 🇨🇦 CA | Spark Plug Wire Set7mm | View on Amazon |
| NGK Fits: 2.0L L4 Turbocharged | 54392 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | 55430 | 🇺🇸 US 🇨🇦 CA | IntermotorSet | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | 55109 | 🇺🇸 US 🇨🇦 CA | IntermotorSet | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | 9459 | 🇺🇸 US 🇨🇦 CA | United-PackardSet | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| B&B Popular Fits: 2.0L L4 Turbocharged | M429272 | 🇺🇸 US 🇨🇦 CA | Platinum Class Laser Mag | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 2.0L L4 Turbocharged | 27478 | 🇺🇸 US 🇨🇦 CA | Pro SeriesSet | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | 27419 | 🇺🇸 US 🇨🇦 CA | Pro SeriesSet | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 2.0L L4 Turbocharged | 29483 | 🇺🇸 US 🇨🇦 CA | Pro SeriesSet | View on Amazon |
| WALKER PRODUCTS Fits: 2.0L L4 Turbocharged | 9241038 | 🇺🇸 US 🇨🇦 CA | Direct FitSet | View on Amazon |
This table covers the Spark Plug wires.
10 Spark Plug Wire parts are listed for the 1978 Saab 99, from STANDARD MOTOR PRODUCTS, DENSO, NGK and 3 other brands. B&B M429272 carries the "Popular" badge.
The Premium section: 5 options from STANDARD MOTOR PRODUCTS, DENSO, NGK and 1 other brand. DENSO 6714016 is listed in this group.
The Standard Replacement section: 5 options from STANDARD MOTOR PRODUCTS, B&B and WALKER PRODUCTS. B&B M429272 is listed in this group.
Buying Ignition Parts for a 1978 Saab 99
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Match the engine first. Every ignition part here is engine-specific; each row shows which engine(s) it fits.
- 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 Distributor Cap .
Frequently Asked Questions
How many ignition parts fit the 1978 Saab 99?
Our catalog currently lists 47 ignition parts for the 1978 Saab 99 across 5 subcategories and 14 brands, covering both the 2.0L L4 and the 2.0L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do ignition parts differ between 1978 Saab 99 engines?
Yes. Every ignition part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of ignition problems on a 1978 Saab 99?
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 1978 Saab 99?
Notes on this page include pre-set gaps of 0.025", 0.028", 0.03", 0.031", 0.032", 0.035", 0.036", 0.040", 0.044" and 0.045". 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 1978 Saab 99 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 1978 Saab 99?
First match the engine — each row shows which engine(s) the part fits. 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 1978 Saab 99
Ignition Parts for Other Saab 99 Years
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