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ARRMA Big Rock Parts

Replacement and upgrade parts that fit the ARRMA Big Rock, including diff outdrives and drivetrain components. Keep your crawler-style monster truck going.

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  • 15T 0.8Mod Safe-D5 Pinion Gear ARA310998
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    15T 0.8Mod Safe-D5 Pinion Gear ARA310998

    15T 0.8Mod Safe-D5 Pinion Gear ARA310998
    $13.99 USD
  • Big Rock Crew Cab 4X4 Clear Body (Inc. Decals): ARA402284
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    Big Rock Crew Cab 4X4 Clear Body (Inc. Decals): ARA402284

    Big Rock Crew Cab 4X4 Clear Body (Inc. Decals): ARA402284
    $34.99 USD
  • ARRMA Fan Set for Gorgon, Mojave, Big Rock, Kraton, Notorious, Infraction, Limitless & Felony (ARA390300)
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    ARRMA Fan Set for Gorgon, Mojave, Big Rock, Kraton, Notorious, Infraction, Limitless & Felony (ARA390300)

    ARRMA Fan Set for Gorgon, Mojave, Big Rock, Kraton, Notorious, Infraction, Limitless & Felony (ARA390300)
    $16.99 USD
  • ARRMA HD 57T Slipper Set (0.8Mod) for Big Rock, Granite, Kraton, Outcast & More (ARA311034)
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    ARRMA HD 57T Slipper Set (0.8Mod) for Big Rock, Granite, Kraton, Outcast & More (ARA311034)

    ARRMA HD 57T Slipper Set (0.8Mod) for Big Rock, Granite, Kraton, Outcast & More (ARA311034)
    $39.99 USD
  • ARRMA Composite Front Slider Driveshaft Set, 4x4 for Typhon, Senton, Granite, Big Rock & Vorteks (ARAC4041)
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    ARRMA Composite Front Slider Driveshaft Set, 4x4 for Typhon, Senton, Granite, Big Rock & Vorteks (ARAC4041)

    ARRMA Composite Front Slider Driveshaft Set, 4x4 for Typhon, Senton, Granite, Big Rock & Vorteks (ARAC4041)
    $18.99 USD