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Mack RD688S Axles & Differentials For Sale

Browse Mack RD688S Axles & Differentials on MyLittleSalesman.com and compare listings with prices from $1,800 to $2,000. Sellers include Rocky Mountain Truck Parts, Badger Truck Parts Ltd, CRG Heavy Truck Parts, and more. Filter by condition, price, or year to quickly narrow down to the right Mack RD688S.
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Truck Parts (14)
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Axles & Differentials (14)
   Axle Assemblies, Front (10)    Spindles / Knuckles (4)
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Mack (14)
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RD688 (14)
   RD688S (14)
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Used (14)
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Showing 1 - 14 of 14 Listings

1 - 14 of 14 listings
1 - 14 of 14 listings
Mack RD688S Left Spindle

2001 Mack RD688S Left Spindle

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(Used) 2001 Mack RD688S, COMPLETE SPINDLE KNUCKLE- Side: Driver Left Side, Material: Steel, Make: Mack, Model: 3QHF545P2, Capacity: 18,000 Lbs, Hub Bolts: 10, Brake Type: Drum, For more...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD688S
Will Fit Year(s)2001
SideLEFT
Capacity18,000
Stock NumberP-105257
MLS Number13657817
CategorySpindles / Knuckles
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
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CRG Heavy Truck Parts
Mack RD688S Right Spindle

2001 Mack RD688S Right Spindle

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(Used) 2001 Mack RD688S, COMPLETE SPINDLE KNUCKLE- Side: Passenger Right Side, Material: Steel, Make: Mack, Model: 3QHF545P2, Capacity: 18,000 Lbs, Hub Bolts: 10, Brake Type: Drum, For more...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD688S
Will Fit Year(s)2001
SideRIGHT
Capacity18,000
Stock NumberP-105258
MLS Number13657818
CategorySpindles / Knuckles
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
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CRG Heavy Truck Parts
Mack RD688S Left Spindle

2001 Mack RD688S Left Spindle

Contact for price
(Used) 2001 Mack RD688S, COMPLETE SPINDLE KNUCKLE- Side: Driver Left Side, Material: Steel, Make: Mack, Model: 3QHF545-P2, Capacity: 18,000 Lbs, Hub Bolts: 10, Brake Type: Drum, For more...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD688S
Will Fit Year(s)2001
SideLEFT
Capacity18,000 lbs.
Stock NumberP-56055
MLS Number12234344
CategorySpindles / Knuckles
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
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CRG Heavy Truck Parts
Mack RD688S Right Spindle

2001 Mack RD688S Right Spindle

Contact for price
(Used) 2001 Mack RD688S, COMPLETE SPINDLE KNUCKLE- Side: Passenger Right Side, Material: Steel, Make: Mack, Model: 3QHF545-P2, Capacity: 18,000 Lbs, Hub Bolts: 10, Brake Type: Drum, For more...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD688S
Will Fit Year(s)2001
SideRIGHT
Capacity18,000 lbs.
Stock NumberP-56057
MLS Number12234346
CategorySpindles / Knuckles
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
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CRG Heavy Truck Parts
Mack RD688S Front Axle Assembly

2001 Mack RD688S Front Axle Assembly

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(Used) 2001 Mack RD688S, COMPLETE FRONT AXLE- Center Leaf to Center Leaf: 34", Make: Mack, Model: 3QHF545P2, Capacity: 18,000 Lbs, Hub Bolts: 10, Brake Type: Drum, For more information about...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD688S
Will Fit Year(s)2001
Capacity18,000 lbs.
Stock NumberP-105247
MLS Number13657804
CategoryAxle Assemblies, Front
Last Updated5/13/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
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CRG Heavy Truck Parts
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