1. Home
  2. For Sale
  3. Truck Parts
  4. Mack
  5. RD685S

Mack RD685S Truck Parts For Sale

Close
Your Current Search
Industry
Truck Parts
Manufacturer
Mack
Model
RD685S
Click the to remove the filter.
Save Search
Email Alert
What's Save Search and Email Alert?
Narrow Your Search
Keyword Search
Search within the selected criteria
Equipment Type
Truck Parts (28)
Category
Air Cleaners / Air Filter Housings (1)Air Tanks (1)Axles & Differentials (3)   Axle Assemblies, Front (1)   Spindles / Knuckles (2)Battery Box Covers (2)Battery Boxes / Trays (2)Bumpers, Front (1)Cabs (1)Cooling & HVAC (3)   Intercoolers (1)   Radiator Overflow Bottles / Surge Tanks (1)   Radiators (1)Dashboards (1)Fuel Tanks (Truck) (2)Hoods (1)Instrument Panel Clusters (3)Interior Misc. Parts (1)Leaf Springs, Front (2)Power Steering Reservoirs (1)Seats (1)Side View Mirrors (1)Steering Columns (1)
Make
Mack (28)
Model
Select a category to view all available models.
Condition
Used (28)
Model Year
-
Horsepower
-
Price
-
Country
United States (28)
State / Region
Select a state below and click Refine Results.
Market Type
For Sale (28)

Shop Truck Parts by Category

Showing 1 - 25 of 28 Listings

1 - 25 of 28 listings
1 - 25 of 28 listings
Mack RD685S Dashboard Assembly

1978 Mack RD685S Dashboard Assembly

Contact for price
(Used) 1978 Mack RD685S, DASH ASSEMBLY- Color: Tan, Material: Plastic, Less Instrumentation, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84990
MLS Number13017008
CategoryDashboards
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Used 1978 Mack RD685S Miscellaneous Dash Switches

Used 1978 Mack RD685S Miscellaneous Dash Switches

Contact for price
(Used) 1978 Mack RD685S, MISCELLANEOUS DASH SWITCHES- Controls: Wiper Arm, Washer Fluid, Parking Brake, Trailer Air Release., Material: Plastic
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84987
MLS Number13017005
CategoryInterior Misc. Parts
Last Updated3/25/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Instrument Panel Cluster

1978 Mack RD685S Instrument Panel Cluster

Contact for price
(Used) 1978 Mack RD685S, INSTRUMENT CLUSTER- Guages: (P) Brake Air Pressure, Fuel Level, Pyrometer, Material: Plastic, For more information about this item, give us a call. We ship...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84985
MLS Number13017003
CategoryInstrument Panel Clusters
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Instrument Panel Cluster

1978 Mack RD685S Instrument Panel Cluster

Contact for price
(Used) 1978 Mack RD685S, INSTRUMENT CLUSTER- Guages: Water Temperature, Oil Pressure, Battery Voltage, Material: Plastic, For more information about this item, give us a call. We ship...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84983
MLS Number13017001
CategoryInstrument Panel Clusters
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Instrument Panel Cluster

1978 Mack RD685S Instrument Panel Cluster

Contact for price
(Used) 1978 Mack RD685S, INSTRUMENT CLUSTER- Guages: RPM, MPH, Material: Plastic, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84980
MLS Number13016998
CategoryInstrument Panel Clusters
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Steering Column

1978 Mack RD685S Steering Column

Contact for price
(Used) 1978 Mack RD685S, STEERING COLUMN- Type: Telescopic, Color: Tan, Includes: Steering wheel, Column Switches,For more information about this item, give us a call. We ship Worldwide!...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84978
MLS Number13016996
CategorySteering Columns
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Left Seat

1978 Mack RD685S Left Seat

Contact for price
(Used) 1978 Mack RD685S, SEATS- Side: Driver Left Side, Color: Tan, Type: Air Ride, Manual, Material: Vinyl, For more information about this item, give us a call. We ship Worldwide! (CRG...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
SideLEFT
Stock NumberP-84974
MLS Number13016992
CategorySeats
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Left Side View Mirror

1978 Mack RD685S Left Side View Mirror

$249.98 USD
(Used) 1978 Mack RD685S, SIDE VIEW MIRROR- Side: Driver Left Side, Color: Black, Type: Manual, Mounts: Door, For more information about this item, give us a call. We ship Worldwide! (CRG...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
SideLEFT
Stock NumberP-84973
MLS Number13016991
CategorySide View Mirrors
Last Updated10/30/2025
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Battery Box Cover

1978 Mack RD685S Battery Box Cover

Contact for price
(Used) 1978 Mack RD685S, BATTERY BOX COVER- Side: Passenger Right Side, Capacity: 2, Material: Metal, Dimensions: L=14", W=11", H=10", For more information about this item, give us a call...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84949
MLS Number13016967
CategoryBattery Box Covers
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Battery Box Cover

1978 Mack RD685S Battery Box Cover

Contact for price
(Used) 1978 Mack RD685S, BATTERY BOX COVER- Side: Driver Left Side, Capacity: 2, Material: Metal, Dimensions: L=14", W=17", H=10", For more information about this item, give us a call. We...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84948
MLS Number13016966
CategoryBattery Box Covers
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Cab Assembly

1978 Mack RD685S Cab Assembly

Contact for price
(Used) 1978 Mack RD685S, CAB- Part Number: 123277, Color: Blue, Type: Day Cab, Engine: 1977 Mack ENDT-676, Less Doors, Less Interior, For more information about this item, give us a call....
ConditionUsed
Engine ModelMack ENDT676
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Part Number123277
Stock NumberP-84934
MLS Number13016952
CategoryCabs
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Used 1978 Mack RD685S 51" Blue Fiberglass Hood Assembly

Used 1978 Mack RD685S 51" Blue Fiberglass Hood Assembly

$1,399.98 USD
(Used) 1978 Mack RD685S, HOOD ASSEMBLY- Length: 51", Color: Blue, Material: Fiberglass, Hood has Damage Reference Images For Condition For more information about this item, give us a call....
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84930
MLS Number13016948
CategoryHoods
Last Updated3/23/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Front Bumper

1978 Mack RD685S Front Bumper

$424.98 USD
(Used) 1978 Mack RD685S, BUMPERS- Color: Black, Material: Steel, Dimensions: L=93", H=15", Bumper has Damage Reference Images for Condition For more information about this item, give us...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84925
MLS Number13016944
CategoryBumpers, Front
Last Updated11/13/2025
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Power Steering Reservoir

1978 Mack RD685S Power Steering Reservoir

Contact for price
(Used) 1978 Mack RD685S, POWER STEERING RESERVOIR- Engine: 1977 Mack ENDT-676, Location: Frame, Material: Metal, For more information about this item, give us a call. We ship Worldwide!...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84917
MLS Number13016937
CategoryPower Steering Reservoirs
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Radiator Overflow Bottle / Surge Tank

1978 Mack RD685S Radiator Overflow Bottle / Surge Tank

Contact for price
(Used) 1978 Mack RD685S, RADIATOR OVERFLOW BOTTLE- Location: Front, Top of Radiator, Material: Metal, Dimensions: L=35", W=8", H=5, For more information about this item, give us a call....
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84916
MLS Number13016936
CategoryRadiator Overflow Bottles / Surge Tanks
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Intercooler

1978 Mack RD685S Intercooler

Contact for price
(Used) 1978 Mack RD685S, INTERCOOLER- Part Number: 735G856, Serial Number: 105GC55170, Engine: 1977 Mack ENDT-676, Dimensions: L=15", H=8",, For more information about this item, give us a...
ConditionUsed
Engine ModelMack ENDT676
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Part Number735G856
Stock NumberP-84914
MLS Number13016934
CategoryIntercoolers
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Radiator

1978 Mack RD685S Radiator

$574.99 USD
(Used) 1978 Mack RD685S, RADIATOR- Price is for Radiator ONLY-Picture is for display Only, Engine: 1978 Mack ENDT676, Dimensions: L=37", H=29 Less Overflow Tank, Sold Separately, For...
ConditionUsed
Engine ModelMack ENDT676
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84911
MLS Number13016931
CategoryRadiators
Last Updated4/2/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Right Air Cleaner / Air Filter Housing

1978 Mack RD685S Right Air Cleaner / Air Filter Housing

Contact for price
(Used) 1978 Mack RD685S, AIR CLEANER- Side: Passenger Right Side, Color: Blue, Material: Metal, Engine: 1977 Mack ENDT676, Dimensions: H=29", D=13, For more information about this item,...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
SideRIGHT
Stock NumberP-84907
MLS Number13016927
CategoryAir Cleaners / Air Filter Housings
Last Updated7/22/2025
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Air Tank

1978 Mack RD685S Air Tank

$224.98 USD
(Used) 1978 Mack RD685S, AIR TANKS- Side: Driver Left Side, Location: Inside Frame, Material: Steel, Dimensions: L=42", D=11", Front Ports: 1, Rear Ports: 1, Top Ports: 3, Tank Has Damage...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84900
MLS Number13016920
CategoryAir Tanks
Last Updated11/22/2025
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Battery Box

1978 Mack RD685S Battery Box

Contact for price
(Used) 1978 Mack RD685S, BATTERY BOXES- Side: Passenger Right Side, Capacity: 2, Material: Steel, Dimensions: L=14", W=19", H=11", For more information about this item, give us a call. We...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84899
MLS Number13016919
CategoryBattery Boxes / Trays
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Battery Box

1978 Mack RD685S Battery Box

Contact for price
(Used) 1978 Mack RD685S, BATTERY BOXES- Side: Driver Left Side, Capacity: 2, Material: Steel, Dimensions: L=14", W=19", H=11", For more information about this item, give us a call. We...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
Stock NumberP-84895
MLS Number13016915
CategoryBattery Boxes / Trays
Last Updated7/30/2024
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Right Fuel Tank

1978 Mack RD685S Right Fuel Tank

$549.98 USD
(Used) 1978 Mack RD685S, FUEL TANK- Side: Passenger Right Side, Capacity: 85 Gallon, Material: Steel, Shape: Rectangular, Dimensions: L=33", W=24", H=20, For more information about this...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
SideRIGHT
Capacity85
Stock NumberP-84891
MLS Number13016911
CategoryFuel Tanks (Truck)
Last Updated2/5/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Left Fuel Tank

1978 Mack RD685S Left Fuel Tank

$549.98 USD
(Used) 1978 Mack RD685S, FUEL TANK- Side: Driver Left Side, Capacity: 85 Gallon, Material: Steel, Dimensions: L=33", W=24", H=20, For more information about this item, give us a call. We...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
SideLEFT
Capacity85
Stock NumberP-84888
MLS Number13016909
CategoryFuel Tanks (Truck)
Last Updated2/5/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Right Spindle

1978 Mack RD685S Right Spindle

Contact for price
(Used) 1978 Mack RD685S, FRONT SPINDLE/KNUCKLE- Side: Passenger Right Side, Make: Mack, Model: 3QHF414EP, Capacity: 12,000Lbs, Hub Bolts: 6, Brake Type: Drum, For more information about...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
SideRIGHT
Capacity12,000Lbs,
Stock NumberP-84849
MLS Number13012587
CategorySpindles / Knuckles
Last Updated9/30/2025
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Mack RD685S Left Spindle

1978 Mack RD685S Left Spindle

Contact for price
(Used) 1978 Mack RD685S, FRONT SPINDLE/KNUCKLE- Side: Driver Left, Make: Mack, Model: 3QHF414EP, Capacity: 12,000Lbs, Hub Bolts: 6, Brake Type: Drum, For more information about this item, ...
ConditionUsed
Fits To Make(s)Mack
Fits To Model(s)RD685S
Will Fit Year(s)1978
SideLEFT
Capacity12,000Lbs
Stock NumberP-84847
MLS Number13012586
CategorySpindles / Knuckles
Last Updated2/9/2026
Location
Elkton, MD, US
Sold By
CRG Heavy Truck Parts
(844) 402-___  SHOW
NUMBERCall Seller
Email Seller
Save
CRG Heavy Truck Parts
Save Search
Email Alert
What's Save Search and Email Alert?
Want to narrow or modify your search criteria?
Filter by Price
Filter by Year
Filter by Location
Filter by Model
Filter by Keyword
Modify your search
Did you find what you were looking for? Yes No