9651 Bosch Iridium Spark Plug
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Bosch Iridium Spark Plug | 9651

Acura, BMW, Chevrolet, Chrysler, Dodge, Honda, Isuzu, Jeep, Lexus, Mazda & more
$7.19
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$7.49
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$15.08
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P/N: 9651 Bosch Iridium OEM
Description:
Bosch original equipment design with ultra-fine wire iridium center electrode and iridium-platinum tapered ground electrode deliver optimum performance and durability.
Cross References:
  • 73921062111
  • W01331920559

Spark plugs provide the spark needed to ignite the air/fuel mixture in each cylinder for engine combustion. High voltage from the ignition coil is transferred through the spark plug to an air gap between the spark plug tip and the spark plug ground to the engine. Once the voltage reaches the air gap, the voltage jumps the gap in the form of a spark, igniting a compressed air fuel charge inside the cylinder. The air fuel charge explodes, creating the force needed to push the cylinder down and turning the engine crankshaft to propel the engine. In short, spark plugs serve a vital function in keeping your vehicle running properly.

Components of a Spark Plug
  • A metal terminal that connects to the ignition system
  • A center electrode for current to flow through the spark plug with a tip for the current to jump making the spark
  • A ribbed ceramic insulator to keep current flowing through the spark plug center electrode and not into other parts of the engine
  • A threaded metal case to anchor the spark plug into the cylinder head with a ground electrode for the spark to jump to
  • A seal to seal the spark plug case to the cylinder head to prevent cylinder compression from escaping
Types of Spark Plugs

The biggest differences in spark plug construction are the materials used for the electrodes, their conductivity, and their wearability.

  • Copper is the base material for the center electrode on most spark plugs as it provides superb conductivity. These tend to wear quickly from the electrical transfer created by the spark and fully copper spark plugs need to be replaced every 15,000 miles.
  • Copper core spark plugs with yttrium or nickel tipped electrodes and grounds take longer to wear and can last up to 30,000 miles.
  • Platinum tipped copper core electrodes wear even less, provide superior conductivity, and can last up to 60,000 miles.
  • Iridium tipped copper core spark plugs wear the least and can last over 100,000 miles.

When a spark plug fails prematurely it will provide a weak spark or no spark at all. Causes of premature spark plug failure can include oil leaking from the valve cover into the spark plug chamber, your engine running too lean and overheating the spark plug, and your engine running too rich and fuel fouling the plug.

Most engines are designed to run on only one type of spark plug based on its use. Be sure to check your owner’s manual for the right type of spark plug needed for your vehicle.

View more Bosch Spark Plugs.

Bosch is the world's largest supplier of components to the automotive industry. The Bosch product line includes alternators & starters, brakes, electronic controls and sensors, fuel system parts and management, ignition system components, and steering system components. All Bosch automotive parts are either OEM (Original Equipment Manufacturer) or made to their specs as a replacement part for the OEM unit.
Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. "Per car" notes identify how many of a given part your car has and "Left/Right or Front/Rear" notes means the part fits the left or right side of the car. These parts are still sold individually and you'll need to select the appropriate quantity if you plan to replace more than one of this item.

Frequently Viewed Together

We found 10 additional part(s) that are frequently viewed together.

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What This Bosch Iridium Spark Plug Fits?

Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.

Acura
97-03 - CL Base, Premium
Do Not Gap, Gap is Preset
92-01 - Integra GS, LS, RS, Special Edition
Do Not Gap, Gap is Preset
01-02 - MDX Base, Touring
Do Not Gap, Gap is Preset
99-03 - TL
Do Not Gap, Gap is Preset
02-03 - TL Type-S
IRIDIUM OE FINEWIRE
BMW
88-94 - 750iL
93-94 - 850Ci
91-92 - 850i
Chevrolet
09-09 - Aveo LS, LT
IRIDIUM OE FINEWIRE L4
09-09 - Aveo5 LS, LT
IRIDIUM OE FINEWIRE L4
Chrysler
11-11 - 200 Limited, LX, Touring
Do Not Gap, Gap is Preset
07-10 - Sebring Base, Limited, LX, Touring
Do Not Gap, Gap is Preset
08-08 - Sebring AWD Limited
Do Not Gap, Gap is Preset
08-08 - Sebring FWD Limited
Do Not Gap, Gap is Preset
Dodge
11-11 - Avenger Express, Lux, Mainstreet
Do Not Gap, Gap is Preset
09-10 - Avenger Express, R/T, SE, SXT
Do Not Gap, Gap is Preset; Engine VIN: B
08-08 - Avenger SE, SXT
Do Not Gap, Gap is Preset; Engine VIN: J
Do Not Gap, Gap is Preset; Engine VIN: K
07-11 - Caliber Express, Heat, Mainstreet, SE, SXT & more
Do Not Gap, Gap is Preset
09-11 - Caliber R/T, Rush, SRT-4, Uptown
Do Not Gap, Gap is Preset; Engine VIN: B
08-08 - Caliber SRT-4
IRIDIUM OE FINEWIRE L4
07-08 - Caliber AWD R/T
Do Not Gap, Gap is Preset
07-08 - Caliber FWD R/T
IRIDIUM OE FINEWIRE L4
09-12 - Journey Base, AVP, Express, SE
Do Not Gap, Gap is Preset; Engine VIN: B
12-12 - Journey AWD SXT
Do Not Gap, Gap is Preset; Engine VIN: B
12-12 - Journey FWD SXT
Do Not Gap, Gap is Preset; Engine VIN: B
Honda
90-02 - Accord 10th Anniversary, 25th Anniversary Edition, DX, EX, LX & more
Do Not Gap, Gap is Preset
92-00 - Civic CX, DX, HX, LX, VX
Do Not Gap, Gap is Preset
96-97 - Civic CX, DX, EX, LX
IRIDIUM OE FINEWIRE
98-00 - Civic CX, DX, EX, GX, LX & more
IRIDIUM OE FINEWIRE; Cylinder Head Type: SOHC; Fuel Type: GAS
92-95 - Civic EX, Si
IRIDIUM OE FINEWIRE; Engine Version: VTEC
93-95 - Civic del Sol S
Do Not Gap, Gap is Preset
96-97 - Civic del Sol VTEC
IRIDIUM OE FINEWIRE L4
97-98 - CR-V EX, LX
Do Not Gap, Gap is Preset
98-98 - CR-V 4WD LX
Do Not Gap, Gap is Preset
98-98 - CR-V FWD LX
2.0L IRIDIUM OE FINEWIRE
95-04 - Odyssey Cargo, EX, EX-L, LX
Do Not Gap, Gap is Preset
03-04 - Pilot EX, LX
Do Not Gap, Gap is Preset
90-96 - Prelude 2.0 Si, S, Si, Si 4WS, Si ALB
Do Not Gap, Gap is Preset
90-90 - Prelude 2.0 S
IRIDIUM OE FINEWIRE
Isuzu
96-99 - Oasis LS, S
Do Not Gap, Gap is Preset
Jeep
07-11 - Compass 4WD Base, Latitude, Limited, Sport
Do Not Gap, Gap is Preset
09-10 - Compass 4WD Limited, Sport
Do Not Gap, Gap is Preset; Engine VIN: B
08-08 - Compass 4WD Limited, Sport
Do Not Gap, Gap is Preset; Engine VIN: W
07-11 - Compass FWD Base, Latitude, Limited, Sport
Do Not Gap, Gap is Preset
09-10 - Compass FWD Limited, Sport
Do Not Gap, Gap is Preset; Engine VIN: B
08-08 - Compass FWD Limited, Sport
Do Not Gap, Gap is Preset; Engine VIN: W
07-11 - Patriot 4WD Latitude, Latitude X, Limited, Sport
Do Not Gap, Gap is Preset
09-10 - Patriot 4WD Limited, Sport
Do Not Gap, Gap is Preset; Engine VIN: B
08-08 - Patriot 4WD Limited, Sport
Do Not Gap, Gap is Preset; Engine VIN: W
07-11 - Patriot FWD Latitude, Latitude X, Limited, Sport
Do Not Gap, Gap is Preset
09-10 - Patriot FWD Limited, Sport
Do Not Gap, Gap is Preset; Engine VIN: B
08-08 - Patriot FWD Limited, Sport
Do Not Gap, Gap is Preset; Engine VIN: W
Lexus
98-00 - GS300
Do Not Gap, Gap is Preset
98-00 - SC300
IRIDIUM OE FINEWIRE
Mazda
93-97 - 626 ES, LX
Do Not Gap, Gap is Preset
94-95 - 929
Do Not Gap, Gap is Preset
90-93 - 929 Base, S
IRIDIUM OE FINEWIRE
90-93 - B2600 4WD Base, LE-5, SE-5
Do Not Gap, Gap is Preset
90-93 - B2600 RWD Base, LE-5, SE-5
Do Not Gap, Gap is Preset
95-01 - Millenia Base, L, S
Do Not Gap, Gap is Preset
91-95 - MPV Cargo, L
Do Not Gap, Gap is Preset
91-91 - MPV Cargo
IRIDIUM OE FINEWIRE
91-95 - MPV 4WD LX, LXE, Passenger
Do Not Gap, Gap is Preset
91-93 - MPV 4WD Passenger
IRIDIUM OE FINEWIRE
91-95 - MPV RWD LX, LXE, Passenger
Do Not Gap, Gap is Preset
91-93 - MPV RWD Passenger
IRIDIUM OE FINEWIRE
93-97 - MX-6 LS, M Edition
Do Not Gap, Gap is Preset
99-01 - Protege DX, LX
Do Not Gap, Gap is Preset
Pontiac
09-09 - G3
IRIDIUM OE FINEWIRE L4
Subaru
98-98 - Forester Base, L, S
Do Not Gap, Gap is Preset
98-99 - Impreza RS
Do Not Gap, Gap is Preset
96-99 - Legacy GT, GT Limited, L, L 30th Anniversary, Limited 30th Anniversary & more
Do Not Gap, Gap is Preset
VW
93-95 - Corrado SLC, VR6
97-00 - EuroVan Base, Camper
96-01 - Golf GTI GLX, GTI VR6
99-99 - Golf MK3 GTI
99-99 - Golf MK4 GTI
95-02 - Jetta GLS, GLX, III GLS VR6
99-99 - Jetta MK3 GLX
99-99 - Jetta MK4 GLS, GLX
93-97 - Passat GLX