HomeIgnition > Hardware, Fasteners and FittingsStandard Ignition JH-197 Distributor Cap
Part #: JH-197

Standard Ignition JH-197 Distributor Cap

⚙️ 14 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Lexus, LS400 and SC400
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Standard Ignition Distributor Cap JH-197

The Standard Ignition Distributor Cap JH-197 is designed specifically for Lexus LS400 and SC400 models. Engineered with durable aluminum contact terminals and a side tower position, this distributor cap ensures reliable ignition performance for your vehicle.

  • Contact terminal material: Aluminum for consistent conductivity
  • Distributor vent included to prevent moisture buildup
  • Screw mount type for secure installation
  • Five female terminals for distributor connections
  • Four female spark plug terminals
  • Includes screws and instruction sheet for installation
  • Black distributor cap color for OEM appearance

Detailed Product Description

The Standard Ignition JH-197 distributor cap is a direct replacement part designed to meet the specifications of Lexus LS400 and SC400 ignition systems. Featuring aluminum contact terminals, it provides reliable electrical conductivity and resistance to corrosion. The distributor vent helps reduce internal moisture, which can cause misfires or ignition failure. The screw mount type ensures a firm and stable fit, minimizing vibration and wear. This distributor cap includes five female terminals for distributor wire connections and four female terminals for spark plug wires, matching the original equipment configuration. The black finish maintains the factory look under the hood. While the package does not include gaskets, ignition rotors, or spark plug wires, it does come with screws and a detailed instruction sheet to assist with installation.

Compatible Vehicles and Applications

This distributor cap is compatible with the following Lexus models:

  • Lexus LS400
  • Lexus SC400

Use this part number JH-197 when searching for a replacement distributor cap for these specific vehicles to ensure proper fit and function.

Common Issues Addressed by Distributor Cap Replacement

  • Engine misfires caused by worn or corroded contact terminals
  • Ignition failure due to moisture buildup inside the distributor cap
  • Intermittent starting problems related to poor electrical connections
  • Excessive engine vibration from loose or damaged distributor mounts
  • Degraded spark delivery affecting engine performance and fuel efficiency

Installation Notes and Tips

  • Ensure the ignition is off and the battery is disconnected before installation
  • Use the included screws to securely fasten the distributor cap in place
  • Follow the instruction sheet carefully to align the side tower position correctly
  • Inspect spark plug wires and distributor rotor separately, as they are not included
  • Check for any signs of wear or damage on related ignition components during installation

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM standards for fit, form, and function. The JH-197 distributor cap undergoes rigorous quality control to ensure durability and reliable performance. Please refer to Standard Ignition's warranty policy for specific coverage details.

BrandStandard Ignition
Part NumberJH-197
Attachment MethodScrew
Coil Terminal GenderFemale
Contact Terminal MaterialAluminum
ContentsIncludes Instruction Sheet
Distributor Cap ColorBlack
Distributor VentYes
Gaskets IncludedNo
Ignition Rotor IncludedNo
Instructions IncludedYes
Screws includedYes
Spark Plug Terminal GenderFemale
Spark Plug Wires IncludedNo
Tower PositionSide

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1997LexusLS4004.0LV8N/A
1997LexusSC4004.0LV8N/A
1996LexusLS4004.0LV8N/A
1996LexusSC4004.0LV8N/A
1995LexusLS4004.0LV8N/A
1995LexusSC4004.0LV8N/A
1994LexusLS4004.0LV8N/A
1994LexusSC4004.0LV8N/A
1993LexusLS4004.0LV8N/A
1993LexusSC4004.0LV8N/A
1992LexusLS4004.0LV8N/A
1992LexusSC4004.0LV8N/A
1991LexusLS4004.0LV8N/A
1990LexusLS4004.0LV8N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

0335010-0239174-69891901709419101500202-498633-88974986J51-17645D120060-324C728CAC1563CAPB10331EP870W3077

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.