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Bosch
OE Fine Wire Double IridiumBosch 96321 Spark Plug
| Brand | Bosch 96321 |
|---|---|
| Center Electrode Core Material | Nickel-Yttrium and Copper |
| Center Electrode Tip Material | Iridium |
| Ground Configuration | Standard |
| Ground Electrode Quantity | 1 |
| Ground Electrode Tip Design | Tapered |
| Ground Electrode Tip Material | Platinum-Iridium and Nickel-Yttrium |
| Hex Size | 16 |
| Insulator Material | Ceramic |
| Insulator Type | Projected |
| Manufacturer Heat Range | 7 |
| Outdoor Power Equipment Application | No |
| Package Contents | Spark Plug |
| Pre-Gap Size | 1.1 |
| Product Length | 3.336614 in |
| Product Width | 0.712598 in |
| Reach | 26.5 |
| Resistance | 6000 |
| Resistor | Yes |
| Seat Type | Flat |
| Short Style | No |
| Spark Plug Type | 4-Cycle |
| Thread Diameter | 12 |
| Product line | OE Fine Wire Double Iridium |
| Fits | Hyundai, Kia, and Genesis · 95 vehicles |
OE fine wire design. Engineered for strong ignitability and long service life.
Iridium center electrode. Delivers high-performance firing with lasting durability.
Laser-welded ground electrode. Tapered tip helps maintain consistent spark performance.
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Bosch OE Fine Wire Double Iridium Spark Plug
Bosch 96321 is an OE Fine Wire Double Iridium spark plug built for direct replacement in a wide range of Hyundai, Kia, Genesis, and Mitsubishi applications. It combines a fine-wire iridium center electrode with a laser-welded ground electrode design to support strong ignitability, stable combustion, and long service life.
The OE Fine Wire Double Iridium line is Boschβs OE-style spark plug family for modern engines that call for precise gap control and durable electrode materials. Part number 96321 follows that approach with a preset 1.1 mm gap, a projected ceramic insulator, and a resistor design for consistent ignition performance in daily driving and highway use.
Key Features
- Fine-wire double iridium construction for durable electrode performance
- Laser-welded tapered ground electrode for improved spark exposure
- Iridium-alloy center electrode firing pin for consistent ignition
- Preset 1.1 mm gap; do not regap when the application calls for preset spacing
- Resistor spark plug design with 6000 ohm resistance
- Flat seat, 12 mm thread diameter, 16 mm hex size, and 26.5 mm reach
- Projected ceramic insulator for OE-style fit and heat control
Detailed Description
Bosch 96321 is engineered for vehicles that require an OE-style 4-cycle spark plug with fine-wire iridium technology. The tapered ground electrode and iridium-alloy center electrode help maintain a focused spark path, while the nickel-y yttrium and copper core materials support heat transfer and durability. This makes it a practical choice for drivers servicing Hyundai Tucson, Kia Sportage, and Genesis G90 ignition systems, as well as other listed applications.
Compatible With 2022-2025 Hyundai Palisade, 2022-2025 Hyundai Santa Cruz, 2022-2025 Hyundai Sonata, 2021-2025 Hyundai Tucson, 2022-2025 Hyundai Venue, 2022-2025 Kia Telluride, 2021-2024 Kia Sorento, 2022-2024 Kia Sportage, 2021-2023 Hyundai Santa Fe, 2021-2023 Kia Rio, 2017-2022 Genesis G90, and additional listed Hyundai, Kia, Genesis, and Mitsubishi models. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Issues This Part Can Address
- Misfires caused by worn or eroded spark plug electrodes
- Hard starting from weak ignition output
- Rough idle from inconsistent spark delivery
- Reduced throttle response from degraded plug performance
- Service intervals reached on OE-style iridium plug applications
Installation Notes and Tips
- Verify the engine calls for Bosch 96321 before installation.
- Do not gap plugs marked with preset gap requirements.
- Use the correct torque specification for the cylinder head material.
- Inspect ignition coils and boots during spark plug service.
- Confirm flat-seat fitment, 12 mm thread diameter, 16 mm reach, and 16 mm hex size match the engine specification.
Quality Assurance
Bosch OE Fine Wire Double Iridium spark plugs are built to OE-style specifications for modern ignition systems and are designed around durable iridium electrode materials, laser-welded construction, and precise fitment dimensions. Part number 96321 is intended for direct replacement in the listed Hyundai, Kia, Genesis, and Mitsubishi applications.
This part fits 95 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Drive Type | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2025 | Hyundai | Palisade | — | 3.8L | V6 | — | N/A | OE Fine Wire Double Iridium |
| 2025 | Hyundai | Santa Cruz | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2025 | Hyundai | Sonata | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2025 | Hyundai | Tucson | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2025 | Hyundai | Venue | — | 1.6L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2025 | Kia | Telluride | — | 3.8L | V6 | — | N/A | OE Fine Wire Double Iridium |
| 2024 | Hyundai | Palisade | — | 3.8L | V6 | — | N/A | OE Fine Wire Double Iridium |
| 2024 | Hyundai | Santa Cruz | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2024 | Hyundai | Sonata | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2024 | Hyundai | Tucson | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2024 | Hyundai | Venue | — | 1.6L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2024 | Kia | Sorento | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2024 | Kia | Sportage | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2024 | Kia | Telluride | — | 3.8L | V6 | — | N/A | OE Fine Wire Double Iridium |
| 2023 | Hyundai | Palisade | — | 3.8L | V6 | — | N/A | OE Fine Wire Double Iridium |
| 2023 | Hyundai | Santa Cruz | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2023 | Hyundai | Santa Fe | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2023 | Hyundai | Sonata | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2023 | Hyundai | Tucson | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2023 | Hyundai | Venue | — | 1.6L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2023 | Kia | Rio | — | 1.6L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2023 | Kia | Sorento | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2023 | Kia | Sportage | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2023 | Kia | Telluride | — | 3.8L | V6 | — | N/A | OE Fine Wire Double Iridium |
| 2022 | Genesis | G90 | — | 5.0L | V8 | — | N/A | OE Fine Wire Double Iridium |
| 2022 | Hyundai | Palisade | — | 3.8L | V6 | — | N/A | OE Fine Wire Double Iridium |
| 2022 | Hyundai | Santa Cruz | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2022 | Hyundai | Santa Fe | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2022 | Hyundai | Sonata | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2022 | Hyundai | Tucson | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2022 | Hyundai | Venue | — | 1.6L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2022 | Kia | Rio | — | 1.6L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2022 | Kia | Sorento | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2022 | Kia | Sportage | — | 2.4L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2022 | Kia | Telluride | — | 3.8L | V6 | — | N/A | OE Fine Wire Double Iridium |
| 2021 | Genesis | G90 | — | 5.0L | V8 | — | N/A | OE Fine Wire Double Iridium |
| 2021 | Hyundai | Palisade | — | 3.8L | V6 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2021 | Hyundai | Santa Fe | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2021 | Hyundai | Sonata | — | 2.0L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2021 | Hyundai | Sonata | — | 2.5L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2021 | Hyundai | Tucson | — | 2.4L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2021 | Hyundai | Venue | — | 1.6L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2021 | Kia | Rio | — | 1.6L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2021 | Kia | Sedona | — | 3.3L | V6 | — | N/A | OE Fine Wire Double Iridium |
| 2021 | Kia | Sorento | — | 2.5L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2021 | Kia | Sportage | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2021 | Kia | Telluride | — | 3.8L | V6 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Genesis | G80 | — | 3.8L | V6 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Genesis | G90 | — | 5.0L | V8 | — | N/A | OE Fine Wire Double Iridium |
| 2020 | Hyundai | Palisade | — | 3.8L | V6 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Hyundai | Santa Fe | FWD | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Hyundai | Sonata | — | 2.0L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Hyundai | Sonata | — | 2.5L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Hyundai | Tucson | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Hyundai | Venue | — | 1.6L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Kia | Cadenza | — | 3.3L | V6 | — | N/A | OE Fine Wire Double Iridium |
| 2020 | Kia | Optima | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Kia | Sedona | — | 3.3L | V6 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Kia | Sorento | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Kia | Sorento | — | 3.3L | V6 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Kia | Sportage | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Kia | Telluride | — | 3.8L | V6 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2020 | Mitsubishi | Outlander | — | 2.4L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2019 | Genesis | G80 | AWD | 3.8L | V6 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2019 | Genesis | G90 | — | 5.0L | V8 | — | N/A | OE Fine Wire Double Iridium |
| 2019 | Hyundai | Santa Fe | AWD | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2019 | Hyundai | Sonata | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2019 | Hyundai | Tucson | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2019 | Kia | Cadenza | — | 3.3L | V6 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2019 | Kia | Optima | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2019 | Kia | Sedona | — | 3.3L | V6 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2019 | Kia | Sportage | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2019 | Mitsubishi | Outlander | — | 2.4L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2018 | Genesis | G80 | — | 3.8L | V6 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2018 | Genesis | G90 | — | 5.0L | V8 | — | N/A | OE Fine Wire Double Iridium |
| 2018 | Hyundai | Santa Fe Sport | FWD | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2018 | Hyundai | Sonata | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2018 | Hyundai | Tucson | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2018 | Kia | Cadenza | — | 3.3L | V6 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2018 | Kia | Optima | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2018 | Kia | Sportage | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2018 | Mitsubishi | Outlander | — | 2.4L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2017 | Genesis | G90 | — | 5.0L | V8 | — | N/A | OE Fine Wire Double Iridium |
| 2017 | Hyundai | Santa Fe Sport | FWD | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2017 | Hyundai | Sonata | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2017 | Kia | Cadenza | — | 3.3L | V6 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2017 | Kia | Optima | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2017 | Kia | Sportage | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2017 | Mitsubishi | Outlander | — | 2.4L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2016 | Hyundai | Sonata | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2016 | Kia | Sportage | — | 2.4L | L4 | — | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2016 | Mitsubishi | Outlander | — | 2.4L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2015 | Hyundai | Sonata | — | 2.4L | L4 | GAS | N/A | Do Not Gap, Gap is Preset; Original Center Electrode Material is Iridium; OE Fine Wire Double Iridium |
| 2015 | Mitsubishi | Outlander | — | 2.4L | L4 | — | N/A | OE Fine Wire Double Iridium |
| 2014 | Mitsubishi | Outlander | — | 2.4L | L4 | — | N/A | OE Fine Wire Double Iridium |
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