Make sure this part fits

Jeep R8003778AA Caliper

2007-2018 Jeep R8003778AA

Customer Questions & Expert Answers (3)
R8003778AA Mopar Caliper
  • Part Description
    Caliper Assembly Disc Brake Rear
  • Manufacturer
    Mopar
Make sure this part fits
$213.55 MSRP: $294.00
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  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Jeep
    Manufacturer Part NumberR8003778AA
    Part DescriptionCaliper; Caliper Assembly Disc Brake Rear
    Item Dimensions14.6 x 6.1 x 6.2 inches
    Item Weight8.10 Pounds
    ConditionNew
    ManufacturerMopar
    SKUR8003778AA
    WarrantyThis genuine Mopar part is guaranteed by Mopar's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2008-2012 Jeep Liberty6 Cyl 3.7LLimited Edition 2WD, Limited Edition 4WD, Limited JET Edition 2WD, Limited JET Edition 4WD, Renegade 4WD, Sport 2WD, Sport 4WD
    2018, 2012-2015, 2007-2010 Jeep Wrangler6 Cyl 3.6L, 6 Cyl 3.8LRubicon, Rubicon 4WD, Sahara, Sahara 4WD, Sport, Sport 4WD, Unlimited Rubicon, Unlimited Rubicon 4WD, Unlimited Sahara 2WD, Unlimited Sahara 4WD, Unlimited Sport 2WD, Unlimited Sport 4WD, Unlimited X 2WD, Unlimited X 4WD, Unlimited X RHD 4WD, X, X RHD
  • Customer Questions & Expert Answers

    Q:
    Is this part guaranteed to fit my truck?
    A:
    You can Select Your Vehicle to check if R8003778AA fits your vehicle.
    Posted and answered by Mopar Parts Specialist Reggie
    Q:
    Is it recommended to replace Brake Calipers individually or in pairs for the 2007 Dodge Nitro? Posted by Delia M.
    A:
    It is recommended to always replace calipers in pairs, never just one. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Mopar Parts Specialist Cale / Jan 10, 2026
    Q:
    How do you bottom the piston in the Brake Caliper bore for the 2009 Jeep Wrangler years? Posted by Hehehd S.
    A:
    For models from 1987 to 1995 or 2007 and later, use a large C-clamp. For models from 1997 to 2006, a screwdriver may be needed to lever the piston back. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by Mopar Parts Specialist Jay / Mar 29, 2026

Genuine Mopar Part R8003778AA, the Right Choice

To ensure reliability, purchase Mopar part # R8003778AA Caliper. It is sometimes referred to as Brake Caliper. The OEM parts should be used when the Mopar owners want to maximize their driving experience. The high-tech factories that produce these parts utilize sophisticated technology specifically designed to meet stringent factory requirements. Additionally, they are thoroughly tested and can thus be used with reliability by Mopar owners. This part fits specific Jeep Liberty and Wrangler models.

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