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1998 - 2000 Lexus GS400 Spark Plug (Champion) NEW

$ 14 .30

Product Notes

⚠️ Most jobs typically require 8 of this item.
Gap 0.032in; Plug Type RC9WMPB4
Champion Iridium
Champion® Iridium - the ultimate element. This spark plug's fine-wire iridium center and platinum ground electrodes provide the sharpest spark focus for maximum performance.
Brand: Champion
Condition: New
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
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Specifications & Info


Attribute Value
Center Electrode Tip Material Iridium
Classification Champion Iridium
Electrical Terminal Type Non-removable Nut
Ground Electrode Core Material Platinum
Ground Electrode Tip Design J Gap
Hex Size 0.625, 15.880
Insulator Height 0.12
Plug Type Rc8wmpb4
Pre Gap Size 0.041, 1.05
Reach 0.75
Seat Type Flat

Vehicle Fitment Guide

This part fits the following vehicles:

Lexus 1 model (tapclick to expand)(tapclick to hide)
GS400 1998-2000 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL
Body Style Years Engine Attributes
Base Sedan 1998 - 2000 V8 4.0L RWD Automatic
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
Champion® Iridium - the ultimate element. This spark plug's fine-wire iridium center and platinum ground electrodes provide the sharpest spark focus for maximum performance.

Interchange Parts

Brand Part Number
Champion Spark Plug RC8WMPB4
DENSO SK20R11
General Motors 88969636
NGK IFR6A11
NGK IFR6T11
Toyota 90080-91180
Toyota 90080-91181

Fits Years: 1998 1999 2000

Fits Models: GS400

Go-Parts Garage · Featured Guide

Lexus GS400 Spark Plug Guide (1998-2000): Choosing the Right Replacement

Keep your GS400's V8 running smoothly by picking the correct spark plugs for its specific needs.

Read Full Guide

⚠️ Related Trouble Codes (OBD-II)

1 matching guide

If your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.

↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.
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120
Day Return Window

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Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.

NEW
Direct-Fit Replacement

Engineered To OEM Specs

Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.

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