View 1 Photo View 0 Videos Caterpillar 3126 Vibration Damper Recently Updated $40 USD Good used, cleaned and inspected Caterpillar 3126 Harmonic Balancer. Part Number: 4P7378, 338-9809, 10R-0706 Quantity16ConditionUsedFits To Make(s)CATERPILLARFits To Model(s)3126Part Number4P7378Stock NumberRyd 4P7378 MLS Number10203993CategoryEngine Harmonic Balancers Last Updated3/24/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Caterpillar 3126 Vibration Damper $150 USD Caterpillar 3126 Vibration Damper, Dampener, Harmonic Balancer, P/N 4P73780. ConditionUsedStock Number4538985 MLS Number13892165CategoryEngine Harmonic Balancers Last Updated3/19/2026 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Used Caterpillar C10 Balancer $270 USD Used C10 Balancer, Type: Viscous, Diameter: 13-1/2" ConditionUsedPart Number1323171Stock Number579-10163 MLS Number14237454CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Used Caterpillar C9 Balancer $249.99 USD Used C9 Balancer, Type: Serpentine, Diameter: 9 3/8" ConditionUsedPart Number2178994Stock Number579-10407 MLS Number14236965CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Used Caterpillar C9 balancer $250 USD Used C9 balancer, Type: Serpentine, Diameter: 9-1/2" ConditionUsedPart Number2178994Stock Number579-10408 MLS Number14236964CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationDorr, MI, US Sold ByFrontier Truck Parts (855) 300-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Caterpillar C7 ACERT Vibration Damper for a 2004 Freightliner FS65 Contact for price 2004 Caterpillar C7 Harmonic Balancer / Dampener - Used - May have some cosmetic blemishes (see photos). Got questions or need more information? Give us a shout by phone, email, or text. We... ConditionUsedFits To Make(s)FreightlinerFits To Model(s)FS65Will Fit Year(s)2004Stock NumberC7-0456-3 MLS Number11110989CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Caterpillar C15 Vibration Damper for a 2006 Peterbilt 378 Contact for price Caterpillar C15 harmonic balancer, part # 1678125. Call us today, we ship everywhere., Serial#: 1678125, Casting#: 1678125 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2006Stock NumberC15-PT0451-16 MLS Number10133293CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Caterpillar C15 Vibration Damper for a 2007 Kenworth T800 Contact for price Caterpillar C15 Dampener/Balancer, Call us Today, We ship everywhere., Serial#: other, Casting#: other ConditionUsedFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2007Stock NumberKW-0413-44 MLS Number10127240CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 3 Photos View 0 Videos Caterpillar C15 Vibration Damper for a 2004 Kenworth T800 Contact for price 2004 Caterpillar C15 Harmonic Balancer P/N 9N-0722 09 - Used - May have some cosmetic blemishes (see photos). Got questions or need more information? Give us a shout by phone, email, or text... ConditionUsedFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)2004Part Number9N-0722 09Stock NumberKW-0476-29 MLS Number9991657CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 12 Photos View 0 Videos Caterpillar C7 Vibration Damper $100 USD Good used Harmonic balancer from a Caterpillar C7 engine. The harmonic balancer has been visually inspected and is in good condition. The harmonic balancer has rust and chipped paint, please... ConditionUsedPart NumberP-1013776Stock NumberP-1013776 MLS Number13824441CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 11 Photos View 0 Videos Caterpillar 3126 Vibration Damper $100 USD Good used Harmonic balancer from a Caterpillar 3126 engine. The Harmonic balancer has been visually inspected and is in good condition. The Harmonic balancer has chipped paint and corrosion.... ConditionUsedPart NumberP-1013729Stock NumberP-1013729 MLS Number13815384CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 12 Photos View 0 Videos Caterpillar 3208 Vibration Damper for a 1985 Ford LNT8000 $75 USD Good used harmonic balancer with pulley from a Caterpillar 3208 engine. The harmonic balancer with pulley has been visually inspected and is in good condition. The harmonic balancer with... ConditionUsedFits To Make(s)FordFits To Model(s)LNT8000Will Fit Year(s)1985Part Number220563-28Stock Number220563-28 MLS Number13476647CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 11 Photos View 0 Videos Caterpillar 3208 Vibration Damper for a 1985 Ford LN7000 $125 USD Good used Harmonic balancer from a Caterpillar 3208 engine. The harmonic balancer has been visually inspected and is in good condition. The harmonic balancer has rust and chipped paint,... ConditionUsedFits To Make(s)FordFits To Model(s)LN7000Will Fit Year(s)1985Part Number190286-24Stock Number190286-24 MLS Number13417157CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 14 Photos View 0 Videos Caterpillar 3406E Vibration Damper $175 USD Good used Balancer from a Caterpillar 3406E engine. The balancer has been visually inspected and is in good condition. The balancer has rust, please refer to the photos provided. The... ConditionUsedPart NumberP-1012196Stock NumberP-1012196 MLS Number13306931CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 16 Photos View 0 Videos Caterpillar C12 Vibration Damper for a 1999 Kenworth T800 $75 USD Good used Balancer from a Caterpillar C12 engine. The balancer has been visually inspected and is in good condition. The balancer has rust, corrosion, chipped paint, and scuff marks, please... ConditionUsedFits To Make(s)KenworthFits To Model(s)T800Will Fit Year(s)1999Part Number240092-17Stock Number240092-17 MLS Number13206246CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 11 Photos View 0 Videos Caterpillar 3406 Vibration Damper $175 USD Good used Balancer from a Caterpillar 3406 engine. The Balancer has been visually inspected and is in good working condition. The Balancer has corrosion and rust, refer to photos. All bolt... ConditionUsedPart NumberP-100230Stock NumberP-100230 MLS Number12675849CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 16 Photos View 0 Videos Caterpillar 3406 Vibration Damper $100 USD Good used Harmonic Balancer from a Caterpillar 3406 engine. The Harmonic balancer has been visually inspected and is in good working condition. The Harmonic balancer has one visible damage,... ConditionUsedPart NumberP-100196Stock NumberP-100196 MLS Number12670383CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 14 Photos View 0 Videos Caterpillar C10 Vibration Damper $100 USD Good, used balancer from a Caterpillar C10 engine. The balancer has been visually inspected and is in good working condition. The bolt holes are clean and clear from obstruction. There is... ConditionUsedPart NumberP-14976Stock NumberP-14976 MLS Number12487020CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 20 Photos View 0 Videos Caterpillar 3406E Vibration Damper $100 USD Good, used balancer from a Caterpillar 3406E engine. The balancer has been visually inspected and is in good working condition. There is no visual damage to the balancer. The balancer has... ConditionUsedPart NumberP-13337Stock NumberP-13337 MLS Number12028005CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 20 Photos View 0 Videos Caterpillar 3406 Vibration Damper $100 USD Good, used balancer from a Cat 3406 engine. The balancer has been visually inspected and is in good working condition. There is no visual damage to the balancer. The balancer has minor rust... ConditionUsedPart NumberP-13293Stock NumberP-13293 MLS Number12017194CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 19 Photos View 0 Videos Caterpillar C12 Vibration Damper for a 2000 Freightliner FLD120 $100 USD Good, used harmonic balancer from a CAT C12 engine. The balancer has been visually inspected and is in good working condition. There is no visible damage seen on the part. There is visible... ConditionUsedFits To Make(s)FreightlinerFits To Model(s)FLD120Will Fit Year(s)2000Part Number220503-10Stock Number220503-10 MLS Number11987740CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 20 Photos View 0 Videos Caterpillar C7 Vibration Damper for a 2005 Freightliner FS65 Chassis $75 USD Good, used harmonic balancer from a Caterpillar C7 engine. The steel harmonic balancer has been visually inspected and is in good working condition. There is no visible damage to the... ConditionUsedFits To Make(s)FreightlinerFits To Model(s)FS65 ChassisWill Fit Year(s)2005Part Number220358-9Stock Number220358-9 MLS Number11979508CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 16 Photos View 0 Videos Caterpillar C7 Vibration Damper for a 2005 Freightliner FS65 Chassis $100 USD Good, used steel harmonic balancer from a Caterpillar C7 engine. The steel harmonic balancer has been inspected and appears to be in good working condition. There is no visible damage to the... ConditionUsedFits To Make(s)FreightlinerFits To Model(s)FS65 ChassisWill Fit Year(s)2005Part Number220366-11Stock Number220366-11 MLS Number11830766CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 13 Photos View 0 Videos Caterpillar C7 Vibration Damper for a 2005 Blue Bird BB Conventional $100 USD Good, used Steel Harmonic Balancer from a Caterpillar C7 Acert Engine. The steel harmonic balancer has been inspected and appears to be in good working condition. There is no visible damage... ConditionUsedFits To Make(s)Blue BirdFits To Model(s)BB ConventionalWill Fit Year(s)2005Part Number220369-11Stock Number220369-11 MLS Number11817244CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 19 Photos View 0 Videos Caterpillar C7 Vibration Damper $75 USD Good, used steel harmonic balancer from a Caterpillar C7 engine. The harmonic balancer has been inspected and appears to be in good working condition. There is no visible damage to the... ConditionUsedPart NumberP-12513Stock NumberP-12513 MLS Number11817139CategoryEngine Harmonic Balancers Last Updated3/11/2026 LocationKankakee, IL, US Sold ByRiver Valley Truck Parts (844) 604-___ SHOWNUMBERCall Seller Email Seller Save More Info