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Spark Plug for 1989 Jeep Cherokee

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Bosch Platinum IR Fusion Spark Plug

Bosch Premium Class PlatinumIR Fusion Spark Plug uses surface air gap technology and 4 yttrium enhanced ground electrodes for both performance and extra long life. Provides multiple radial spark paths and surface air gap design that creates optimal exposure of the air/fuel mixture to the enhanced ignition spark.

Features:
  • Fuses iridium with platinum and combines the superior properties on both materials into a single fine wire center electrode
  • Reduces the voltage necessary to jump the gap as well as reduces quenching
  • Designed to give exceptional performance, reach self cleaning temperature faster for quicker starts, smoother acceleration, and increased fuel efficiency
Bosch Spark Plug, Bosch Platinum IR Fusion, Direct Fit, Sold Individually
$11.10 List Price $13.10 Save $2.00 Availability: In Stock
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  • SKU#: BS4501
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: 1-2 business days
  • Electrode Tip Material: Iridium/Platinum
  • Reach: 19 mm
  • Thread Size: 14 mm
  • Warranty: 12-month or 12,000-mile Bosch limited warranty
see more Fits the following 1989 Jeep Cherokee submodels:
  • 6 Cyl 4.0L | Base, Laredo, Limited, Pioneer, Sport
Rating: (see review/s)

"Great spark plugs! A little on the high end however, I have never noticed a difference until I installed these plugs. Engine seems to be running at a higher efficiency. I highly recommend their installation, especially on high mileage vehicles." posted by: Aquaman on October 13, 2011

"Bosch makes good quality spark plug, Mine had a pretty good spark plugs for stock but after changed even spark plugs don't incrase HP,I still able to tell the different. It goes more smoothly when shifting in my case(manaul) I like it" posted by: KK on September 26, 2010

Bosch Platinum+4 Spark Plug

Bosch Premium Class Platinum+4 Spark Plug contains the most platinum in the Bosch Platinum Plug Series and has a unique firing technology that combines the advantages of surface air gap technology and 4 yttrium enhanced ground electrodes.

Features:
  • Reduces the voltage necessary to jump the gap as well as quenching
  • Provides multiple radial spark paths and surface air gap design that creates optimal exposure of the air/fuel mixture to the enhanced ignition spark
  • Yttrium-enhancement of the ground electrodes further extend plug life
  • Designed to reach self cleaning temperature faster for quicker starts, smoother acceleration, and increased fuel efficiency
Bosch Spark Plug, Bosch Platinum+4, Direct Fit, Sold Individually
$6.51 List Price $7.68 Save $1.17 Availability: In Stock
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  • SKU#: BS4418
  • Electrode Core Material: Platinum
  • Plug Type: Resistor
  • Anticipated Ship Out Time: 1-2 business days
  • Electrode Tip Material: Platinum
  • Reach: 19 mm
  • Thread Size: 14 mm
  • Warranty: 12-month or 12,000-mile Bosch limited warranty
see more Fits the following 1989 Jeep Cherokee submodels:
  • 6 Cyl 4.0L | Base, Laredo, Limited, Pioneer, Sport
Rating: (see review/s)

"Got these to replace the plugs on a used car I bought. Very happy with them." posted by: on January 13, 2014

"I notice more acceleration & power right away! Quicker throttle response too!" posted by: BMW fanatic on December 19, 2013 view all 3 reviews

Bosch Spark Plug, Bosch Platinum+4, Direct Fit, Sold Individually
$6.48 List Price $7.65 Save $1.17 Availability: In Stock
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  • SKU#: BS4428
  • Electrode Core Material: Platinum
  • Plug Type: Resistor
  • Anticipated Ship Out Time: 1-2 business days
  • Electrode Tip Material: Platinum
  • Reach: 19 mm
  • Thread Size: 14 mm
  • Warranty: 12-month or 12,000-mile Bosch limited warranty
see more Fits the following 1989 Jeep Cherokee submodels:
  • 4 Cyl 2.5L | Base, Laredo, Pioneer, Sport
Rating: (see review/s)

"Great plugs. Grab em and get new wires while you are at it. I noticed a slight increase in gas mileage on my gas hog 01 Ram 5.2L. Engine runs smoother with no missing like it did with old AC Delco gapped plugs." posted by: Motorhead5 on September 28, 2013

"These plugs were 100K replacements and resulted in instant smoothing of idle faster initial start up and overall should result in improved fuel economy. Overall acceleration was also improved." posted by: Dave on September 17, 2013

Bosch Super Plus Spark Plug

Bosch Regular Class Super Plus Spark Plug has a heavy duty yttrium enhanced copper core center electrode for superior reliability and increased resistance to spark erosion.

Features:

  • Tapered V-profile nickel ground electrode provides improved starting in cold weather and increased fuel ignitibility
  • Metal glass fused resistor allows for maximum interference suppression while the ribbed insulator design prevents misfires due to current leakage
Bosch Spark Plug, Bosch Super Plus, Direct Fit, Sold Individually
$3.69 List Price $4.35 Save $0.66 Availability: In Stock
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  • SKU#: BS7927
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: 1-2 business days
  • Electrode Tip Material: Nickel alloy
  • Gap Size: 0.8 mm
  • Reach: 19 mm
  • Thread Size: 14 mm
  • Warranty: 12-month or 12,000-mile Bosch limited warranty
see more Fits the following 1989 Jeep Cherokee submodels:
  • 6 Cyl 4.0L | Base, Laredo, Limited, Pioneer, Sport
Bosch Spark Plug, Bosch Super Plus, Direct Fit, Sold Individually
$11.46 List Price $13.52 Save $2.06 Availability: In Stock
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  • SKU#: BS7961
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: 2-3 business days
  • Electrode Tip Material: Nickel alloy
  • Gap Size: 0.9 mm
  • Reach: 19 mm
  • Thread Size: 14 mm
  • Warranty: 12-month or 12,000-mile Bosch limited warranty
see more Fits the following 1989 Jeep Cherokee submodels:
  • 4 Cyl 2.5L | Base, Laredo, Pioneer, Sport

Bosch Platinum Plus Spark Plug

Bosch Super Class Platinum Plus Spark Plug reaches self cleaning temperature faster for quicker starts, smoother acceleration, and increased fuel efficiency. Metal glass fused resistor allows for maximum interference suppression while the ribbed insulator design prevents misfires due to current leakage.

Features:

  • Platinum center electrode that is heat fused into the extended ceramic insulator
  • Tapered V-profile nickel ground electrode provides improved starting in cold weather and increased fuel ignitability
Bosch Spark Plug, Bosch Platinum Plus, Direct Fit, Sold Individually
$11.71 List Price $13.82 Save $2.11 Availability: In Stock
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  • SKU#: BS4003
  • Electrode Core Material: Platinum
  • Plug Type: Resistor
  • Anticipated Ship Out Time: 1-2 business days
  • Electrode Tip Material: Platinum
  • Gap Size: 0.9 mm
  • Reach: 19 mm
  • Thread Size: 14 mm
  • Warranty: 12-month or 12,000-mile Bosch limited warranty
see more Fits the following 1989 Jeep Cherokee submodels:
  • 4 Cyl 2.5L | Base, Laredo, Pioneer, Sport

NGK Spark Plug

NGK V-Power Spark Plugs come with unique V-power design that directs spark to the edge of the electrode where it develops more rapidly to improve ignitability unlike other OE products.


Features:

  • Increase ignitability even in lean burn conditions and lower ignition system voltage requirements
  • Increase fuel economy and lower emissions
  • Trivalent metal plating has superior anti-corrosion and anti-seizing properties
  • Highly durable against electrical and chemical wear
NGK Spark Plug, NGK V-Power, Direct Fit, Sold Individually
$4.16 List Price $4.91 Save $0.75 Availability: In Stock
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  • SKU#: NG7252
  • Electrode Core Material: Copper
  • Plug Type: Resistor
  • Anticipated Ship Out Time: 1-2 business days
  • Notes: Ships to U.S. addresses only. Cannot be shipped internationally.
Fits the following 1989 Jeep Cherokee submodels:
  • 4 Cyl 2.5L | Laredo, Pioneer, Base, Sport

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