This page lists 21 ignition parts for the 1990 Avanti Ii, across 4 part types, covering the 5.0L 305cid V8 engine. Every part shows its brand, manufacturer part number and fitment notes.
The ignition system on the 1990 Avanti Ii delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. The largest groups are Spark Plug (10 parts), Ignition Coil (6 parts) and Distributor Mounting Gasket (3 parts). The other 1 part type covers the remaining 2 parts.
Every part on this page is matched to the 5.0L 305cid V8 — the only engine offered in the 1990 Avanti Ii.
The most listed brands for 1990 Avanti Ii ignition parts are CHAMPION (3 parts), ACDELCO (3 parts) and UNITED MOTOR PRODUCTS (2 parts), plus 11 more brands. Quality grades include Copper / Nickel, Economy and Platinum.
4 parts on this 1990 Avanti Ii page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including STANDARD MOTOR PRODUCTS DR37T (Ignition Coil) and CHAMPION 18 (Spark Plug). Click any part number to see every vehicle that part fits.
Distributor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| UNITED MOTOR PRODUCTS | 9366 | 🇺🇸 US | Premium QualityHigh-Performance Engineered, with Aluminum Housing & Brass Cap & Rotor | View on Amazon |
| UNITED MOTOR PRODUCTS | 99366 | 🇺🇸 US | with Electronic Spark Selectionwith Vertical Distributor Cap Towers | View on Amazon |
This table covers the distributors that route spark.
2 Distributor parts for the 1990 Avanti Ii come from UNITED MOTOR PRODUCTS.
This group includes UNITED MOTOR PRODUCTS 9366 and UNITED MOTOR PRODUCTS 99366.
Distributor Mounting Gasket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FEL-PRO | 70194 | 🇺🇸 US | Thickness: 0.053 In | View on Amazon |
| MAHLE / CLEVITE | B25934 | 🇺🇸 US | Paper | View on Amazon |
| VICTOR REINZ | 711350200 | 🇺🇸 US | Inside Diameter: 1.280 In | View on Amazon |
This table covers the gaskets that seal the Distributor Mounting. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for.
3 Distributor Mounting Gasket parts for the 1990 Avanti Ii come from 3 brands — FEL-PRO, MAHLE / CLEVITE and VICTOR REINZ.
Listed part numbers: FEL-PRO 70194, MAHLE / CLEVITE B25934 and VICTOR REINZ 711350200.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular | DR37T | 🇺🇸 US | T-Series | View on Amazon |
| FVP | DR37F | 🇺🇸 US | View on Amazon | |
| HOLSTEIN | 2IGC0026 | 🇺🇸 US | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | DR37 | 🇺🇸 US | Blue Streak | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Popular | 19418995 | 🇺🇸 US 🇨🇦 CA | Secondary Resistance: 11000 OhmsVoltage: 12 VDC | View on Amazon |
| WELLS | 5C1029 | 🇺🇸 US | Requires External Resistor: YES | 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.
6 Ignition Coil parts are listed for the 1990 Avanti Ii, from STANDARD MOTOR PRODUCTS, FVP, HOLSTEIN and 2 other brands. STANDARD MOTOR PRODUCTS DR37T carries the "Popular" badge.
In the Economy grade, STANDARD MOTOR PRODUCTS, FVP and HOLSTEIN supply 3 parts: the catalog's value-priced group. A representative part number is STANDARD MOTOR PRODUCTS DR37T.
The Premium section lists 1 option from STANDARD MOTOR PRODUCTS — a step above OE specification in materials, tolerances or warranty terms. STANDARD MOTOR PRODUCTS DR37 is listed in this group.
The Standard Replacement section lists 2 options from GM GENUINE and WELLS — built to original-equipment specification. GM GENUINE 19418995 is listed in this group.
Listed part numbers: STANDARD MOTOR PRODUCTS DR37T, FVP DR37F and HOLSTEIN 2IGC0026, plus the other parts above.
Spark Plug
Summary: Notes include pre-set gaps of 0.040", 0.043", 0.044" and 0.045". Replacement brands in this table include CHAMPION, ACDELCO and MOTORCRAFT.
Copper / Nickel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMPION Popular | 18 | 🇺🇸 US | Copper PlusPre-Set Gap: 0.045" | View on Amazon |
| ACDELCO | CR44TS | 🇺🇸 US 🇨🇦 CA | ProfessionalConventional | View on Amazon |
| MOTORCRAFT | SP450X | 🇺🇸 US | Copper | View on Amazon |
Double Platinum (lasts up to 3x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO | 41803 | 🇺🇸 US 🇨🇦 CA | ProfessionalDouble Platinum | View on Amazon |
| CHAMPION | 7018 | 🇺🇸 US | Double Platinum PowerPre-Set Gap: 0.04" | View on Amazon |
Iridium (lasts up to 4x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOLITE | XP25 | 🇺🇸 US | Display PackQTY2 | View on Amazon |
| SKP | SP1009 | 🇺🇸 US | 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 Popular | 2 | 🇺🇸 US 🇨🇦 CA | GoldRapidfire | View on Amazon |
| CHAMPION | 3018 | 🇺🇸 US | Platinum PowerPre-Set Gap: 0.04" | View on Amazon |
| MOTORCRAFT | SP502 | 🇺🇸 US | Platinum | 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.
10 Spark Plug parts for the 1990 Avanti Ii come from 5 brands — CHAMPION, ACDELCO, MOTORCRAFT and 2 other brands. The "Popular" part is CHAMPION 18.
The Copper / Nickel section lists 3 options from CHAMPION, ACDELCO and MOTORCRAFT — grouped under the catalog's "Copper / Nickel" designation — the notes column spells out what sets them apart. CHAMPION 18 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 41803 is listed in this group.
In the Iridium (lasts up to 4x longer than Copper / Nickel) grade, AUTOLITE and SKP supply 2 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 AUTOLITE XP25.
The Platinum (lasts up to 2x longer than Copper / Nickel) section lists 3 options from ACDELCO, CHAMPION and MOTORCRAFT — 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 2 is listed in this group.
Buying Ignition Parts for a 1990 Avanti Ii
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Confirm you have the 5.0L 305cid V8 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 Ignition Coil .
Frequently Asked Questions
How many ignition parts fit the 1990 Avanti Ii?
Our catalog currently lists 21 ignition parts for the 1990 Avanti Ii across 4 subcategories and 14 brands, covering the 5.0L 305cid V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of ignition problems on a 1990 Avanti Ii?
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 1990 Avanti Ii?
Notes on this page include pre-set gaps of 0.040", 0.043", 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 1990 Avanti Ii 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 1990 Avanti Ii?
Every part on this page is matched to the 5.0L 305cid V8 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 1990 Avanti Ii
Ignition Parts for Other Avanti Ii Years
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