This page lists 10 electrical 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.
On the 1990 Avanti Ii, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors. 9 parts of the 10 listed are Battery Cable (5 parts), Battery Terminal (2 parts) and Speed Sensor (2 parts). The other 1 part type covers the remaining 1 part.
The 1990 Avanti Ii came with a single engine, the 5.0L 305cid V8, and every part is verified against it.
4 brands supply electrical parts for the 1990 Avanti Ii, led by DEKA (7 parts), ATP (1 part) and PIONEER (1 part), plus 1 more brand. Quality grades include Economy and Standard Replacement.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1990 Avanti Ii. 1 part has it: DEKA 00802 (Battery Cable). Each part number opens a page with every vehicle that part fits.
Battery Cable
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA Popular | 00802 | 🇺🇸 US | Black4 Gauge | View on Amazon |
| DEKA | 00286 | 🇺🇸 US | Red4 Gauge | View on Amazon |
| DEKA | 00297 | 🇺🇸 US | Red4 Gauge | View on Amazon |
| DEKA | 00801 | 🇺🇸 US | Black4 Gauge | View on Amazon |
| DEKA | 00296 | 🇺🇸 US | Red4 Gauge | View on Amazon |
This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early.
5 Battery Cable parts for the 1990 Avanti Ii come from DEKA. The "Popular" part is DEKA 00802.
Part numbers include DEKA 00802, DEKA 00286 and DEKA 00297, among others listed above.
Battery Terminal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DEKA | 00350 | 🇺🇸 US | Top Post Terminal | View on Amazon |
| DEKA | 01056 | 🇺🇸 US | Top Post Terminal Lead Free | View on Amazon |
This table covers the terminals and clamps that connect cables to the battery posts.
DEKA supplies both parts for the 1990 Avanti Ii.
Listed part numbers: DEKA 00350 and DEKA 01056.
Speed Sensor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ATP | CE11 | 🇺🇸 US | Bolt On with Bracket | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PIONEER | 771088 | 🇺🇸 US | Bolt On with Bracket | View on Amazon |
This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor.
2 Speed Sensor parts are listed for the 1990 Avanti Ii, from ATP and PIONEER.
In the Economy grade, ATP supplies 1 part: the catalog's value-priced group. A representative part number is ATP CE11.
The Standard Replacement section lists 1 option from PIONEER — built to original-equipment specification. PIONEER 771088 is listed in this group.
Part numbers include ATP CE11 and PIONEER 771088.
Starter Bolt
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ARP | 4303501 | 🇺🇸 US 🇨🇦 CA | 12 Point Bolt Head | View on Amazon |
This table covers the Starter bolts.
This group shows a single part: ARP 4303501.
Buying Electrical Parts for a 1990 Avanti Ii
On this vehicle, the electrical system covers charging, starting and the sensors and modules the vehicle relies on, from alternator and starter to oxygen sensors.
- 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, clean or renew the battery terminals and grounds with any charging-system repair.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Battery Cable and Battery Terminal .
Frequently Asked Questions
How many electrical parts fit the 1990 Avanti Ii?
Our catalog currently lists 10 electrical parts for the 1990 Avanti Ii across 4 subcategories and 4 brands, covering the 5.0L 305cid V8 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical problems on a 1990 Avanti Ii?
Common symptoms include slow cranking on cold mornings, a battery light that flickers, dim lights at idle, or a check-engine code pointing at a sensor circuit. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, clean or renew the battery terminals and grounds with any charging-system repair.
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 test before replacing — a failed alternator and a bad ground can look identical, and sensors are frequently condemned for wiring faults. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1990 Avanti Ii
Electrical Parts for Other Avanti Ii Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.