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Crankshaft Gear Compatible With Hyundai R360lc-7/R360lc-7A/Hl770-7 2000S-2010S Cummins 6Ct 8.3L

C3918776A2
OEM PART NUMBERS:
• Cummins: 3918776 (Crankshaft gear 42-tooth for 6CT/6CTA)
• Cummins: J918776 (Cross-reference number)
• Cummins: 391-8776 (Alternative format)

SPECIFICATIONS:
• Teeth Count: 42
• Gear Type: Crankshaft Gear
• Position: Crankshaft
• Engine Family: Cummins C Series
• Displacement: 8.3L
• Condition: New

APPLICATION:
• Compatible with Hyundai R290LC-7/R305LC-7/R320LC-7/R320LC-7A (2000s-2010s)

PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.

WARNING - This product may expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

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Sale: $166.34
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Description

HYUNDAI:
• Hyundai R290LC-7/R305LC-7/R320LC-7/R320LC-7A Cummins 6CT 8.3L (2000s-2010s)
• Hyundai R360LC-7/R360LC-7A/HL770-7/HL770-7A Cummins 6CT 8.3L (2000s-2010s)


IMPORTANT:
42-tooth crankshaft gear for Cummins 6CT/6CTA/ISC/QSC 8.3L engines. Cross-refs: J918776, 391-8776. This is the CRANKSHAFT gear — do NOT confuse with the 84T camshaft gear (3918777). The crank gear is the master timing component that drives the entire gear train.

Used in Hyundai excavators (R290LC-R360LC), wheel loaders (HL770), Case IH tractors, and various industrial/marine Cummins applications. Verified 8.3L displacement. When replacing, ALL timing marks must be aligned — the cam gear (84T) runs at exactly half crank speed. One tooth off causes catastrophic valve timing failure. Replace the front seal and inspect all mating gears.

⚠️ Crankshaft gear (42T). Camshaft gear (84T) is 3918777. Align timing marks.

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  • Item Requires Shipping
  • 2.5 lbs.
  • W6.0000” x H3.0000” x L6.0000”
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