95 Ignition parts are listed for the 1989 Geo Spectrum, in 11 part types, covering both the 1.5L L4 and the 1.5L L4 Turbocharged. Each one has a brand, a manufacturer part number and notes that say where it fits.
The ignition system on the 1989 Geo Spectrum delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. The largest groups are Spark Plug (24 parts), Spark Plug Wire (24 parts) and Distributor Cap (18 parts). The other 8 part types cover the remaining 29 parts.
The 1989 Geo Spectrum was sold with both the 1.5L L4 and the 1.5L L4 Turbocharged. 32 parts fit every engine; the other 63 are engine-specific. Each part shows which engine(s) it fits.
28 brands supply ignition parts for the 1989 Geo Spectrum, led by WELLS (14 parts), STANDARD MOTOR PRODUCTS (11 parts) and BOSCH (9 parts), plus 25 more brands. Quality grades include Standard Replacement, Economy and Copper / Nickel.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 1989 Geo Spectrum. 20 parts have it, including ULTRA-POWER JH158 (Distributor Cap) and STANDARD MOTOR PRODUCTS JR101T (Distributor Rotor). Each part number opens a page with every vehicle that part fits.
Distributor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOLINE Fits: 1.5L L4 Turbocharged | D2125 | 🇺🇸 US 🇨🇦 CA | Reman. | View on Amazon |
| CARDONE Fits: 1.5L L4 Turbocharged | 301460 | 🇺🇸 US 🇨🇦 CA | Remanufactured | View on Amazon |
This table covers the distributors that route spark.
2 Distributor parts are listed for the 1989 Geo Spectrum, from AUTOLINE and CARDONE.
This group includes AUTOLINE D2125 and CARDONE 301460.
Distributor Brush
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 1.5L L4 Turbocharged | 5A1186 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Distributor brushes.
One part is listed for the 1989 Geo Spectrum — WELLS 5A1186.
Distributor Cap
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ULTRA-POWER Popular Fits: 1.5L L4 | JH158 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BORG-WARNER Fits: 1.5L L4 | C265 | 🇺🇸 US 🇨🇦 CA | 7 Engine CODE | View on Amazon |
| BWD/NIEHOFF Fits: 1.5L L4 | C265 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FAMOUS BRAND Fits: 1.5L L4 | 250434300 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FAMOUS BRAND Fits: 1.5L L4 | CAC1262 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GUARANTEED PARTS Fits: 1.5L L4 | 225146 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| KEMPARTS Fits: 1.5L L4 | W3022 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SWITCHES Fits: 1.5L L4 | 410321 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Popular Fits: 1.5L L4 Turbocharged | 5D1152A | 🇺🇸 US 🇨🇦 CA | Premium | View on Amazon |
| WELLS Fits: 1.5L L4 Turbocharged | 3D1126A | 🇺🇸 US 🇨🇦 CA | Includes RotorPremium | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Popular Fits: 1.5L L4 | 1746919 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| STANDARD MOTOR PRODUCTS Popular Fits: 1.5L L4 | JH158 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BECK/ARNLEY Fits: 1.5L L4 Turbocharged | 1746934 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| BOSCH Fits: 1.5L L4 | 03242 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: 1.5L L4 | 5D1070 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: 1.5L L4 | 3D1053 | 🇺🇸 US 🇨🇦 CA | Includes Rotor | View on Amazon |
| WELLS Fits: 1.5L L4 Turbocharged | 3D1126 | 🇺🇸 US 🇨🇦 CA | Includes Rotor | View on Amazon |
| WELLS Fits: 1.5L L4 Turbocharged | 5D1152 | 🇺🇸 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.
18 Distributor Cap parts are listed for the 1989 Geo Spectrum, from WELLS, FAMOUS BRAND, BECK/ARNLEY and 8 other brands. ULTRA-POWER JH158 carries the "Popular" badge.
In the Economy grade, FAMOUS BRAND, ULTRA-POWER, BORG-WARNER and 4 other brands supply 8 parts: the catalog's value-priced group. A representative part number is ULTRA-POWER JH158.
The Premium section lists 2 options from WELLS — a step above OE specification in materials, tolerances or warranty terms. WELLS 5D1152A is listed in this group.
The Standard Replacement section lists 8 options from WELLS, BECK/ARNLEY, STANDARD MOTOR PRODUCTS and 1 other brand — built to original-equipment specification. BECK/ARNLEY 1746919 is listed in this group.
Distributor Pickup Coil
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 1.5L L4 | LX579 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: 1.5L L4 | 4P1226 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Distributor Pickup coils. Typical signs include a misfire that follows one cylinder, or a snap in damp weather. Swap with a neighbor to confirm, and replace a torn boot with the coil.
2 Distributor Pickup Coil parts for the 1989 Geo Spectrum come from 2 brands — STANDARD MOTOR PRODUCTS and WELLS.
This group includes STANDARD MOTOR PRODUCTS LX579 and WELLS 4P1226.
Distributor Rotor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: all 1989 Spectrum engines | JR101T | 🇺🇸 US 🇨🇦 CA | T-Series | View on Amazon |
| UNITED MOTOR PRODUCTS Fits: all 1989 Spectrum engines | IR4016 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 1989 Spectrum engines | 4R1053A | 🇺🇸 US 🇨🇦 CA | Premium | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: all 1989 Spectrum engines | JR101 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Fits: all 1989 Spectrum engines | 9261025 | 🇺🇸 US 🇨🇦 CA | Color: Red | View on Amazon |
| WELLS Fits: all 1989 Spectrum engines | 4R1053 | 🇺🇸 US 🇨🇦 CA | Contact Terminal 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 are listed for the 1989 Geo Spectrum, from STANDARD MOTOR PRODUCTS, WELLS, UNITED MOTOR PRODUCTS and 1 other brand. STANDARD MOTOR PRODUCTS JR101T carries the "Popular" badge. All of them fit every engine offered in the 1989 Spectrum.
Economy: 2 parts, from STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS. A representative part number is STANDARD MOTOR PRODUCTS JR101T.
The Premium section: 1 option from WELLS. WELLS 4R1053A is listed in this group.
The Standard Replacement section: 3 options from STANDARD MOTOR PRODUCTS, WALKER PRODUCTS and WELLS. STANDARD MOTOR PRODUCTS JR101 is listed in this group.
Part numbers include STANDARD MOTOR PRODUCTS JR101T, UNITED MOTOR PRODUCTS IR4016 and WELLS 4R1053A, among others listed above.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ULTRA-POWER Popular Fits: 1.5L L4 | UF103 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| B&B Fits: all 1989 Spectrum engines | BB5103 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| FAMOUS BRAND Fits: 1.5L L4 | EBC1643 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| PRENCO Fits: 1.5L L4 | 361135 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DELPHI Popular Fits: all 1989 Spectrum engines | GN10216 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NGK Popular Fits: 1.5L L4 Turbocharged | 49035 | 🇺🇸 US 🇨🇦 CA | Includes Hardware | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 1989 Spectrum engines | UF103 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| UNITED MOTOR PRODUCTS Fits: all 1989 Spectrum engines | C103 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WALKER PRODUCTS Fits: all 1989 Spectrum engines | 9201085 | 🇺🇸 US 🇨🇦 CA | Single Coil | View on Amazon |
| WELLS Fits: all 1989 Spectrum engines | 5C1073 | 🇺🇸 US 🇨🇦 CA | 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.
10 Ignition Coil parts for the 1989 Geo Spectrum come from 10 brands — ULTRA-POWER, B&B, FAMOUS BRAND and 7 other brands. The "Popular" part is ULTRA-POWER UF103. 6 parts fit every engine; the other 4 are engine-specific.
The Economy section: 4 options from ULTRA-POWER, B&B, FAMOUS BRAND and 1 other brand. ULTRA-POWER UF103 is listed in this group.
Premium: 1 part, from DELPHI. A representative part number is DELPHI GN10216.
Standard Replacement: 5 parts, from NGK, STANDARD MOTOR PRODUCTS, UNITED MOTOR PRODUCTS and 2 other brands. A representative part number is NGK 49035.
Ignition Control Module (ICM)
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTO-TUNE Fits: 1.5L L4 | PT7018 | 🇺🇸 US 🇨🇦 CA | 7 Engine CODE | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAI GLOBAL Fits: 1.5L L4 | NM472 | 🇺🇸 US 🇨🇦 CA | Denso System | View on Amazon |
| WELLS Fits: 1.5L L4 | 6H1057 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 1.5L L4 Turbocharged | E1979 | 🇺🇸 US 🇨🇦 CA | Professional | View on Amazon |
| WAI GLOBAL Fits: 1.5L L4 Turbocharged | NM472 | 🇺🇸 US 🇨🇦 CA | Denso System | View on Amazon |
| WELLS Fits: 1.5L L4 Turbocharged | 6H1111 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the Ignition control modules.
6 Ignition Control Module (ICM) parts for the 1989 Geo Spectrum come from 4 brands — WAI GLOBAL, WELLS, AUTO-TUNE and 1 other brand.
The Economy section: 1 option from AUTO-TUNE. AUTO-TUNE PT7018 is listed in this group.
Standard Replacement: 2 parts, from WAI GLOBAL and WELLS. A representative part number is WAI GLOBAL NM472.
3 further parts sit outside the graded sections, with the same engine-level match.
Part numbers include AUTO-TUNE PT7018, WAI GLOBAL NM472 and WELLS 6H1057, among others listed above.
Ignition Lock Cylinder
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 1989 Spectrum engines | 4H1033 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
This table covers the lock cylinders in the ignition switch.
This group shows a single part: WELLS 4H1033.
Spark Plug
Summary: Notes include pre-set gaps of 0.031", 0.032", 0.035", 0.036", 0.040", 0.041", 0.043", 0.044", 0.045", 0.054" and 0.063". Replacement brands in this table include DENSO, BOSCH and CHAMPION.
Copper / Nickel
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Popular Fits: all 1989 Spectrum engines | R42XLS | 🇺🇸 US 🇨🇦 CA | ProfessionalConventional | View on Amazon |
| NGK Popular Fits: all 1989 Spectrum engines | 2851 | 🇺🇸 US 🇨🇦 CA | V-PowerPre-Set Gap: 0.040" | View on Amazon |
| NGK Popular Fits: all 1989 Spectrum engines | 4006 | 🇺🇸 US 🇨🇦 CA | StandardPart Number: BPR5ES Solid | View on Amazon |
| BOSCH Fits: 1.5L L4 Turbocharged | 7911 | 🇺🇸 US 🇨🇦 CA | NickelPre-Set Gap: 0.031" | View on Amazon |
| CHAMPION Fits: all 1989 Spectrum engines | 301 | 🇺🇸 US 🇨🇦 CA | Copper PlusPre-Set Gap: 0.041" | View on Amazon |
| CHAMPION Fits: 1.5L L4 | 322S | 🇺🇸 US 🇨🇦 CA | Resistor Copper Plug OE StyleOE-Recommended Gap: 0.044 | View on Amazon |
| DENSO Fits: all 1989 Spectrum engines | 3067 | 🇺🇸 US 🇨🇦 CA | Gap 0.044Long # W20EXR-U11 | View on Amazon |
| DENSO Fits: all 1989 Spectrum engines | 3212 | 🇺🇸 US 🇨🇦 CA | U-Groove ConventionalPre-Set Gap: 0.044" | View on Amazon |
Double Platinum (lasts up to 3x longer than Copper / Nickel)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: all 1989 Spectrum engines | 41804 | 🇺🇸 US 🇨🇦 CA | ProfessionalDouble Platinum | View on Amazon |
| CHAMPION Fits: all 1989 Spectrum engines | 7415 | 🇺🇸 US 🇨🇦 CA | Double Platinum PowerPre-Set Gap: 0.032" | View on Amazon |
| DENSO Fits: all 1989 Spectrum engines | 3238 | 🇺🇸 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 |
|---|---|---|---|---|
| DENSO Popular Fits: all 1989 Spectrum engines | 5306 | 🇺🇸 US 🇨🇦 CA | Iridium PowerHex Size: 20.6 mm | View on Amazon |
| CHAMPION Fits: all 1989 Spectrum engines | 9007 | 🇺🇸 US 🇨🇦 CA | IridiumPre-Set Gap: 0.054" | View on Amazon |
| DENSO Fits: all 1989 Spectrum engines | 4709 | 🇺🇸 US 🇨🇦 CA | Iridium TTSolid Terminal | View on Amazon |
| NGK Fits: all 1989 Spectrum engines | 7214 | 🇺🇸 US 🇨🇦 CA | Iridium IXPre-Set Gap: 0.040" | View on Amazon |
| SKP Fits: all 1989 Spectrum engines | 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 Popular Fits: all 1989 Spectrum engines | 4 | 🇺🇸 US 🇨🇦 CA | ProfessionalRapidfire | View on Amazon |
| BOSCH Fits: 1.5L L4 | 6737 | 🇺🇸 US 🇨🇦 CA | OE Fine Wire PlatinumPre-Set Gap: 0.035" | View on Amazon |
| BOSCH Fits: 1.5L L4 | 4478 | 🇺🇸 US 🇨🇦 CA | PLATINUM+4Pre-Set Gap: 0.063" | View on Amazon |
| BOSCH Fits: 1.5L L4 | 4506 | 🇺🇸 US 🇨🇦 CA | PLATINUM IR FUSIONPre-Set Gap: 0.063" | View on Amazon |
| BOSCH Fits: 1.5L L4 Turbocharged | 6736 | 🇺🇸 US 🇨🇦 CA | OE Fine Wire PlatinumPre-Set Gap: 0.035" | View on Amazon |
| CHAMPION Fits: 1.5L L4 | 2319 | 🇺🇸 US 🇨🇦 CA | Gold Plug | View on Amazon |
| DENSO Fits: all 1989 Spectrum engines | 4502 | 🇺🇸 US 🇨🇦 CA | Platinum TTSolid Terminal | View on Amazon |
| NGK Fits: all 1989 Spectrum engines | 3351 | 🇺🇸 US 🇨🇦 CA | G-PowerPre-Set Gap: 0.040" | 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.
24 Spark Plug parts are listed for the 1989 Geo Spectrum, from DENSO, BOSCH, CHAMPION and 3 other brands. ACDELCO R42XLS carries the "Popular" badge. 17 parts fit every engine; the other 7 are engine-specific.
In the Copper / Nickel grade, NGK, CHAMPION, DENSO and 2 other brands supply 8 parts: grouped under the catalog's "Copper / Nickel" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO R42XLS.
In the Double Platinum (lasts up to 3x longer than Copper / Nickel) grade, ACDELCO, CHAMPION and DENSO supply 3 parts: 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. A representative part number is ACDELCO 41804.
The Iridium (lasts up to 4x longer than Copper / Nickel) section lists 5 options from DENSO, CHAMPION, NGK and 1 other brand — grouped under the catalog's "Iridium (lasts up to 4x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. DENSO 5306 is listed in this group.
In the Platinum (lasts up to 2x longer than Copper / Nickel) grade, BOSCH, ACDELCO, CHAMPION and 2 other brands supply 8 parts: grouped under the catalog's "Platinum (lasts up to 2x longer than Copper / Nickel)" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 4.
Spark Plug Non-Fouler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: all 1989 Spectrum engines | 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 |
|---|---|---|---|---|
| AUTOLITE Popular Fits: 1.5L L4 Turbocharged | 86454 | 🇺🇸 US 🇨🇦 CA | PRO-FitSet | View on Amazon |
| B&B Fits: 1.5L L4 | S429165 | 🇺🇸 US 🇨🇦 CA | Suppressor Wire Set | View on Amazon |
| B&B Fits: 1.5L L4 Turbocharged | S429173 | 🇺🇸 US 🇨🇦 CA | Suppressor Wire Set | View on Amazon |
| BORG-WARNER Fits: 1.5L L4 | CH474SP | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| BWD/NIEHOFF Fits: 1.5L L4 | CH474SP | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| FAMOUS BRAND Fits: 1.5L L4 | 354006 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| FEDERAL PARTS Fits: 1.5L L4 | 2484 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.5L L4 Turbocharged | 4541 | 🇺🇸 US 🇨🇦 CA | SetFederal Wire | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DENSO Popular Fits: 1.5L L4 | 6714006 | 🇺🇸 US 🇨🇦 CA | Spark Plug Wire Set7mm | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 1.5L L4 Turbocharged | 7440 | 🇺🇸 US 🇨🇦 CA | SetStandard® Premium | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 1.5L L4 | 55109 | 🇺🇸 US 🇨🇦 CA | IntermotorSet | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 1.5L L4 | 27419 | 🇺🇸 US 🇨🇦 CA | Pro SeriesSet | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 1.5L L4 | 27478 | 🇺🇸 US 🇨🇦 CA | Pro SeriesSet | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: 1.5L L4 Turbocharged | 27440 | 🇺🇸 US 🇨🇦 CA | Pro SeriesSet | View on Amazon |
| ACDELCO Fits: 1.5L L4 | 764F | 🇺🇸 US 🇨🇦 CA | WIRE KIT,Spark Plug | View on Amazon |
| ACDELCO Fits: 1.5L L4 Turbocharged | 764R | 🇺🇸 US 🇨🇦 CA | WIRE KIT,Spark Plug | View on Amazon |
| B&B Fits: all 1989 Spectrum engines | M429165 | 🇺🇸 US 🇨🇦 CA | Platinum Class Laser Mag | View on Amazon |
| BECK/ARNLEY Fits: 1.5L L4 | 1755874 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| BECK/ARNLEY Fits: 1.5L L4 Turbocharged | 1755909 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| BOSCH Fits: 1.5L L4 | 09163 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| BOSCH Fits: 1.5L L4 Turbocharged | 09052 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| BOSCH Fits: 1.5L L4 Turbocharged | 09182 | 🇺🇸 US 🇨🇦 CA | Set | View on Amazon |
| WALKER PRODUCTS Fits: 1.5L L4 | 9241136 | 🇺🇸 US 🇨🇦 CA | Direct FitSet | View on Amazon |
| WALKER PRODUCTS Fits: 1.5L L4 Turbocharged | 9241138 | 🇺🇸 US 🇨🇦 CA | Direct FitSet | View on Amazon |
This table covers the Spark Plug wires.
24 Spark Plug Wire parts for the 1989 Geo Spectrum come from 12 brands — STANDARD MOTOR PRODUCTS, B&B, BOSCH and 9 other brands. The "Popular" part is AUTOLITE 86454. 1 part fits every engine; the other 23 are engine-specific.
The Economy section: 8 options from B&B, AUTOLITE, BORG-WARNER and 4 other brands. AUTOLITE 86454 is listed in this group.
Premium: 3 parts, from STANDARD MOTOR PRODUCTS and DENSO. A representative part number is DENSO 6714006.
Standard Replacement: 13 parts, from STANDARD MOTOR PRODUCTS, BOSCH, ACDELCO and 3 other brands. A representative part number is STANDARD MOTOR PRODUCTS 27419.
Buying Ignition Parts for a 1989 Geo Spectrum
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Match the engine first. Some ignition parts fit every engine; others are 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 Spark Plug Wire .
Frequently Asked Questions
How many ignition parts fit the 1989 Geo Spectrum?
Our catalog currently lists 95 ignition parts for the 1989 Geo Spectrum across 11 subcategories and 28 brands, covering both the 1.5L L4 and the 1.5L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do ignition parts differ between 1989 Geo Spectrum engines?
Some do. 32 parts fit every engine; the other 63 are engine-specific. Each row (and the filter at the top) shows which. 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 1989 Geo Spectrum?
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 1989 Geo Spectrum?
Notes on this page include pre-set gaps of 0.031", 0.032", 0.035", 0.036", 0.040", 0.041", 0.043", 0.044", 0.045", 0.054" and 0.063". 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 1989 Geo Spectrum 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 1989 Geo Spectrum?
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 1989 Geo Spectrum
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