JRX - Motor Mount

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Jr. Sprint motor mount parts – JRX motor mount plates, hardware and adapters for Jr. Sprint engines. The mount holds the motor square to the chassis and sets your chain alignment, so a tired or bent mount shows up as chain wear and lost drive.Built in Fresno, CA to the same standard as our 600 Micro Sprint line. Call 559.891.1901 if you are unsure what your car uses.

  • Jr. Sprint | Jack Shaft (JRX)

    $35.99
  • Jr. Sprint | Jack Shaft Housing - 2025 Design (JRX)
    Select options This product has multiple variants. The options may be chosen on the product page

    Jr. Sprint | Jack Shaft Housing – 2025 Design (JRX)

    Price range: $81.99 through $106.49
  • Jr. Sprint | Jack Shaft Housing - Original Design (JRX)
    Select options This product has multiple variants. The options may be chosen on the product page

    Jr. Sprint | Jack Shaft Housing – Original Design (JRX)

    Price range: $79.99 through $102.99
  • Jr. Sprint | Jack Shaft Housing Bearing (JRX)
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    Jr. Sprint | Jack Shaft Housing Bearing (JRX)

    Price range: $9.99 through $64.99
  • Jr. Sprint | Jack Shaft Plate - 2025 Design (JRX)
    Select options This product has multiple variants. The options may be chosen on the product page

    Jr. Sprint | Jack Shaft Plate – 2025 Design (JRX)

    Price range: $61.49 through $64.99
  • Jr. Sprint | JRX Motor Plate - Briggs World Formula
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    Jr. Sprint | JRX Motor Plate – Briggs World Formula

    Price range: $51.24 through $57.99
  • Jr. Sprint | Motor Slider Plate Set (JRX)
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    Jr. Sprint | Motor Slider Plate Set (JRX)

    Price range: $71.99 through $76.99
  • Jr. Sprint | Titanium Jack Shaft – JRX

    $174.24
  • Jr. Sprint | JRX Motor Plate – Jack Shaft Assembly

    $51.24