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Our office will be closed 9/7/2026 in observance of Labor Day. Orders placed during this time will be processed when our office opens 9/8/2026.

Our office will be closed 9/7/2026 in observance of Labor Day. Orders placed during this time will be processed when our office opens 9/8/2026.

DS-3905427 Flywheel Ring Gear For Cummins Engines

Compatible With 4B3.9, 6B5.9, B4.5, B5.9, B6.7, and ISB6.7 Engines (127 Teeth)

Base price: $255.23
$224.60
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Restocking Fee Applies

PRODUCT NOTES

This high quality aftermarket replacement part is guaranteed to meet OEM specifications and is shipped with a 12-month warranty.

Also available in genuine.


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FLYWHEEL RING GEAR - 4B3.9 / 6B5.9 / B4.5 / B5.9 / B6.7 / ISB6.7 (127 TEETH)

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