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    LLY Duramax Studs & Fasteners


    Upgrade your 2004.5–2005 LLY Duramax with premium studs and fasteners designed to handle high boost, heavy towing, and performance tuning. From head studs to main studs and critical hardware, these components offer superior tensile strength, precision fitment, and long-term reliability. Whether you're rebuilding or upgrading, trust high-quality fasteners to keep your Duramax engine sealed, secure, and ready for serious power.

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    Duramax 01-16 Head Studs ARP 230-4201
    Duramax 01-16 Head Studs ARP 230-4201 $814.20
    Fits: Duramax 2001-2016
    LB7|LLY Duramax Main Stud Kit ARP 230-5401
    LB7|LLY Duramax Main Stud Kit ARP 230-5401 $307.28
    Fits: LB7|LLY Duramax 2001-2005
    Duramax 2001-2010 Cylinder Head Bolts Mahle GS33504
    Duramax 2001-2010 Cylinder Head Bolts Mahle GS33504 $100.21
    Fits: Duramax 2001-2010
    Duramax 2001-2018 Balancer Bolt Kit ARP 129-2503
    Duramax 2001-2018 Balancer Bolt Kit ARP 129-2503 $30.42
    Fits: Duramax 2001-2023
    Duramax 01-16 Head Stud Kit PPE 118034300
    Duramax 01-16 Head Stud Kit PPE 118034300 $539.99
    Fits: Duramax 2001-2016
    Duramax 01-16 Performance Head Stud Kit Xotic CP877
    Duramax 01-16 Performance Head Stud Kit Xotic CP877 $368.88
    Fits: Duramax 2001-2016
    Duramax Camshaft Retainer Bolt Washer GM 97225125
    Duramax Camshaft Retainer Bolt Washer GM 97225125 $3.83
    Fits: Duramax trucks 2001-2022
    Duramax Engine Shield and Skid Plate Bolt GM 11518341
    Duramax Engine Shield and Skid Plate Bolt GM 11518341 $10.11
    Fits: Duramax 2001-2020
    Duramax 2001-2010 Stub Shaft Snap Ring GM 25931953
    Duramax 2001-2010 Stub Shaft Snap Ring GM 25931953 $7.21
    Fits: Silverado/Sierra 2500HD/3500 2001-2010
    Duramax Transmission Case Locator Pin GM 97228317
    Duramax Transmission Case Locator Pin GM 97228317 $13.04
    Fits: 2500/3500HD Silverado Sierra 2001-2022
    Duramax 01-18 Multi-Purpose Retaining Ring AcDelco 29541534
    Duramax 01-18 Multi-Purpose Retaining Ring AcDelco 29541534 $8.10
    Fits: 2500HD/3500 Silverado | Sierra 2001-2018
    Duramax 01-16 Up-Pipe Bolt Set PPE 116121500
    Duramax 01-16 Up-Pipe Bolt Set PPE 116121500 $35.99
    Fits: LB7 | LLY | LBZ | LMM | LML Duramax 2001-2016
    Duramax 01-18 High Strength Bolt Kit Fluidampr 300010
    Duramax 01-18 High Strength Bolt Kit Fluidampr 300010 $88.43
    Fits: Duramax 2001-2018
    Duramax 01-16 Gator Fasteners HSK66 Heavy Duty Head Stud Kit
    Duramax 01-16 Gator Fasteners HSK66 Heavy Duty Head Stud Kit $549.99
    Fits: Duramax 2001-2016
    2001-2010 Duramax Connecting Rod Bolt Kit ARP 230-6301
    2001-2010 Duramax Connecting Rod Bolt Kit ARP 230-6301 $277.11
    Fits: 2001-2010 Duramax
    LB7|LLY Duramax Heavy Duty Main Stud Kit Gator Fasteners MSK667Y
    LB7|LLY Duramax Heavy Duty Main Stud Kit Gator Fasteners MSK667Y $279.99
    Fits: LB7|LLY Duramax 2001-2005
    Duramax 2001-2010 Heavy Duty Connecting Rod Bolt Kit Gator Fasteners RBK66
    Duramax 2001-2010 Heavy Duty Connecting Rod Bolt Kit Gator Fasteners RBK66 $209.99
    Fits: LB7|LLY|LBZ|LMM Duramax
    Duramax 2001-2016 Connecting Rod Bolt GM 11610685
    Duramax 2001-2016 Connecting Rod Bolt GM 11610685 $16.43
    Fits: Duramax 2001-2016
    LB7|LLY Duramax Main Bearing Cap Bolt GM 97209622
    Temporarily Out of Stock
    LB7|LLY Duramax Main Bearing Cap Bolt GM 97209622 $3.43
    Fits: LB7|LLY Duramax 2001-2005
    Duramax 2001-2016 Head Bolt Set SBI 220-1099
    Duramax 2001-2016 Head Bolt Set SBI 220-1099 $108.09
    Fits: Duramax 2001-2016