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LB7 Duramax Parts

Parts for the LB7 Duramax (2001 to 2004).

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    Yukon Gear Chrome Cover For 9.5in GM

    Yukon Gear & Axle
    $76.95 - $76.95
    $76.95
    $76.95 - $76.95
    $76.95

    These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.Installati...

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    $76.95 - $76.95
    $76.95
    $76.95 - $76.95
    $76.95
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    Yukon Gear Chrome Cover For 10.5in GM 14 Bolt Truck

    Yukon Gear & Axle
    $75.30 - $75.30
    $75.30
    $75.30 - $75.30
    $75.30

    These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.Installati...

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    $75.30 - $75.30
    $75.30
    $75.30 - $75.30
    $75.30
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    Yukon Gear 4340 Chrome Moly Rear Axle For GM 11.5in 14 Bolt Truck 30 Spline

    Yukon Gear & Axle
    $469.87 - $469.87
    $469.87
    $469.87 - $469.87
    $469.87

    Yukon 4340 cut to length shaft for GM 14T & 11.5", 30 spline, 34.8"-38.8". Yukon 4340 Chrome Moly alloy axles offer a strength increase over st...

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    $469.87 - $469.87
    $469.87
    $469.87 - $469.87
    $469.87
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    Yukon Gear 1541H Right Hand Long Side Stub Axle For 97-00 GM 9.25in IFS

    Yukon Gear & Axle
    $366.51 - $366.51
    $366.51
    $366.51 - $366.51
    $366.51

    Yukon Gear & Axle offers an extensive line of general replacement and high-performance axles for passenger car, truck and SUV applications. Hig...

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    $366.51 - $366.51
    $366.51
    $366.51 - $366.51
    $366.51
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    Yukon Gear 1541H Alloy Front Leftt Hand Short Side Stub Axle For GM 9.25in IFS (88+)

    Yukon Gear & Axle
    $259.89 - $259.89
    $259.89
    $259.89 - $259.89
    $259.89

    Fits 2007 and newer clamshell applications, will also work for 4WD/ AWD 2006 & older applications when used with YPKGM9.25IFS-S-33 internal gea...

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    $259.89 - $259.89
    $259.89
    $259.89 - $259.89
    $259.89
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    Yukon Gear 1541H Alloy 8 Lug Rear Axle For GM 99+ 9.5in

    Yukon Gear & Axle
    $415.92 - $415.92
    $415.92
    $415.92 - $415.92
    $415.92

    Yukon 1541H alloy 8 lug rear axle for '99-'07 GM 9.5" with a length of 33-5/16 inches and 33 splines. Yukon 1541H alloy axles offer a strength incr...

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    $415.92 - $415.92
    $415.92
    $415.92 - $415.92
    $415.92
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    Yukon Gear 1410 U/Joint w/Zerk Fitting 4.188in Snap Ring 1.118in Cap Diameter Outside Snap Ring

    Yukon Gear & Axle
    $66.89 - $66.89
    $66.89
    $66.89 - $66.89
    $66.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

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    $66.89 - $66.89
    $66.89
    $66.89 - $66.89
    $66.89
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    Yukon Gear 1480 Lifetime Series U/Joint 4.188in Ring Span 1.375in Cap Diameter Outside Snap Ring

    Yukon Gear & Axle
    $104.89 - $104.89
    $104.89
    $104.89 - $104.89
    $104.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

    View full details
    $104.89 - $104.89
    $104.89
    $104.89 - $104.89
    $104.89
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    Yukon Gear 1410 Lifetime Series U/Joint 4.188in Ring Span - 1.188in Capt Diameter Outside Snap

    Yukon Gear & Axle
    $80.89 - $80.89
    $80.89
    $80.89 - $80.89
    $80.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

    View full details
    $80.89 - $80.89
    $80.89
    $80.89 - $80.89
    $80.89
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    Yukon Gear 1350 Lifetime Series U-Joint 3.625in Ring Span 1.188in Cap Diameter Outside Snap Ring

    Yukon Gear & Axle
    $61.89 - $61.89
    $61.89
    $61.89 - $61.89
    $61.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

    View full details
    $61.89 - $61.89
    $61.89
    $61.89 - $61.89
    $61.89
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    Yukon Gear 11.5in GM Standard Open Cross Pin Shaft

    Yukon Gear & Axle
    $40.89 - $40.89
    $40.89
    $40.89 - $40.89
    $40.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

    View full details
    $40.89 - $40.89
    $40.89
    $40.89 - $40.89
    $40.89
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    Yukon Gear 11.5in GM Standard Open Side Gear Thrust Washer

    Yukon Gear & Axle
    $36.89 - $36.89
    $36.89
    $36.89 - $36.89
    $36.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

    View full details
    $36.89 - $36.89
    $36.89
    $36.89 - $36.89
    $36.89
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    Yukon Gear 11.5in GM & Chrysler Crush Sleeve

    Yukon Gear & Axle
    $31.89 - $31.89
    $31.89
    $31.89 - $31.89
    $31.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

    View full details
    $31.89 - $31.89
    $31.89
    $31.89 - $31.89
    $31.89
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    Yukon Gear 11.5in Chrysler & GM Helical Gear Type Positraction

    Yukon Gear & Axle
    $1,904.74 - $1,904.74
    $1,904.74
    $1,904.74 - $1,904.74
    $1,904.74

    Yukon gear-type helical limited slip differentials know how to put the power down. They use floating helical-cut worm gears that lock the torque do...

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    $1,904.74 - $1,904.74
    $1,904.74
    $1,904.74 - $1,904.74
    $1,904.74
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    Yukon Gear 11.5in Chrysler & GM Cover Gasket

    Yukon Gear & Axle
    $42.42 - $42.42
    $42.42
    $42.42 - $42.42
    $42.42

    Yukon Gear & Axle manufactures a full line of top-quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

    View full details
    $42.42 - $42.42
    $42.42
    $42.42 - $42.42
    $42.42
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    Yukon Gear - Yukon 1350 U-Joint w/Zerk Fitting

    Yukon Gear & Axle
    $59.89 - $59.89
    $59.89
    $59.89 - $59.89
    $59.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

    View full details
    $59.89 - $59.89
    $59.89
    $59.89 - $59.89
    $59.89
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    Yukon Full Float Rear Wheel Seal for GM 14T & 11.5in

    Yukon Gear & Axle
    $47.61 - $47.61
    $47.61
    $47.61 - $47.61
    $47.61

    Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit, that seals tight and lasts for years to come.In...

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    $47.61 - $47.61
    $47.61
    $47.61 - $47.61
    $47.61
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    Yukon Gear - Yukon 1350 To 1410 Conversion U/Joint

    Yukon Gear & Axle
    $85.89 - $85.89
    $85.89
    $85.89 - $85.89
    $85.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

    View full details
    $85.89 - $85.89
    $85.89
    $85.89 - $85.89
    $85.89
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    Yukon Dura Grip Composite Clutch Kit for GM 14 Bolt Truck

    Yukon Gear & Axle
    $309.06 - $309.06
    $309.06
    $309.06 - $309.06
    $309.06

    Fits: 30 vehicle models, including 1996 to 2015 GMC Savana 3500; 1979 to 1986, 1988 to 1998 GMC C2500; 1979 to 1986, 1988 to 1998 GMC C3500. See th...

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    $309.06 - $309.06
    $309.06
    $309.06 - $309.06
    $309.06
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    Yukon Dura Grip Clutch Kit for Chrysler/AAM 11.5in

    Yukon Gear & Axle
    $432.46 - $432.46
    $432.46
    $432.46 - $432.46
    $432.46

    This Yukon Gear & Axle clutch kit is a direct replacement for the popular Yukon Dura Grip positraction unit.Installation InstructionsInstallati...

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    $432.46 - $432.46
    $432.46
    $432.46 - $432.46
    $432.46
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    Yukon Dana 60 4.56 & Up Dura Grip Positraction Narrow 32 Spline ABS Compatible

    Yukon Gear & Axle
    $1,113.70 - $1,113.70
    $1,113.70
    $1,113.70 - $1,113.70
    $1,113.70

    Yukon Dura Grip is a positraction limited slip differential that provides smooth yet aggressive traction, giving you the confidence and performance...

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    $1,113.70 - $1,113.70
    $1,113.70
    $1,113.70 - $1,113.70
    $1,113.70
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    Yukon 1330 To Mechanics 3R Adaptor U-Joint

    Yukon Gear & Axle
    $55.89 - $55.89
    $55.89
    $55.89 - $55.89
    $55.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

    View full details
    $55.89 - $55.89
    $55.89
    $55.89 - $55.89
    $55.89
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    Yukon 1350 To Mechanics 3R Adaptor U-Joint

    Yukon Gear & Axle
    $107.89 - $107.89
    $107.89
    $107.89 - $107.89
    $107.89

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

    View full details
    $107.89 - $107.89
    $107.89
    $107.89 - $107.89
    $107.89
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    Yukon 11.5in AAM 4.56 Rear Ring & Pinion Install Kit Positraction 4.125in OD Pinion Bearing

    Yukon Gear & Axle
    $3,048.48 - $3,048.48
    $3,048.48
    $3,048.48 - $3,048.48
    $3,048.48

    Yukon Gear Kits combine all the parts you need for your re-gear project. It delivers front and rear ring and pinion gear sets and the proper Yukon ...

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    $3,048.48 - $3,048.48
    $3,048.48
    $3,048.48 - $3,048.48
    $3,048.48

The LB7 is the original 6.6L Duramax, built by GM and Isuzu for 2001 to 2004 Chevy Silverado HD and GMC Sierra HD trucks. It has a cast iron block, aluminum heads, a Bosch CP3 pump and no DPF or EGR, which makes it a favorite for high mileage reliability and tuning.

Shop LB7 Duramax Parts by Category

Not sure what fits? Send us your VIN or call 865.640.2097 and we will match the right part.

LB7 Duramax FAQ

What is the LB7 known for?

A strong bottom end and no emissions equipment, which makes it popular for tuning and long term reliability.

What are common LB7 problems?

Injector failure is the most common issue, often from fuel contamination. Keeping fuel filtration in good shape helps prevent it.