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Mack RD688S Axles & Differentials For Sale

Browse Mack RD688S Axles & Differentials for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 14 listings. Mack RD688S pricing ranges from $1,800 to $2,000 based on recent marketplace data. Filter by condition, price, or year to find 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 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
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CRG Heavy Truck Parts
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
NUMBERCall Seller
Email Seller
Save
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: 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 Updated6/21/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
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
Email Seller
Save
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
Email Seller
Save
CRG Heavy Truck Parts
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