View 1 Photo View 0 Videos Spicer Synchronizer Assembly 4TH & 5TH Mainshaft ES52/ESO65/ESO66 Recently Updated $307.87 USD SYNCHRONIZER ASSEMBLY 4TH 5TH MAINSHAFT BACKTAP[ERED , SPICER ES52/ESO65/ESO66 Quantity2ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberCCT 101-464-2X EUR MLS Number13373865CategoryTransmission Parts Last Updated4/2/2026 LocationTampa, FL, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Synchro Assembly Back Taper 33 Teeth Recently Updated $307.87 USD SYNCHRO ASSEMBLY BACK TAPER 33 TEETH SPICER ESO66-7 6/7TH GEAR ES43-5 4/5TH GEAR , Quantity2ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberCCT 101-464-1X EUR MLS Number13373864CategoryTransmission Parts Last Updated4/2/2026 LocationTampa, FL, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer Mainshaft Gear 4TH Speed Non Back Taper ES52-7B/ES66-7B $131.10 USD MAINSHAFT GEAR 4TH SPEED NON BACK TAPER SPICER TTC ES52-7B/ES66-7B ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberGEN 101-8-8 MLS Number14189096CategoryTransmission Parts Last Updated3/20/2026 LocationHenderson, CO, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Spicer ESO66-7B Gear Clutch Collar 6TH & 7TH, 33 Teeth 26 Spline $29.10 USD GEAR CLUTCH COLLAR 6TH 7TH 33 TEETH 26 SPLINE SPICER ESO66-7B ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberGEN 101-466-2 MLS Number14189089CategoryTransmission Parts Last Updated3/20/2026 LocationHenderson, CO, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Input Shaft $94.10 USD INPUT SHAFT SPICER TTC ES066-7B Quantity2ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberGEN 101-35-28-1X MLS Number12413916CategoryTransmission Parts Last Updated3/20/2026 LocationHenderson, CO, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Countershaft Assembly $252.10 USD ASSY COUNTERSHAFT ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberGEN 101-30-2-1X MLS Number12413914CategoryTransmission Parts Last Updated3/20/2026 LocationHenderson, CO, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Synchro 2-3 Back Taper $263.40 USD SPICER ESO66-7B SYNCHRO 2-3 BACK TAPER Quantity2ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberINC TRK101-464-3X MLS Number14225180CategoryTransmission Parts Last Updated3/20/2026 LocationWatseka, IL, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer Synchronizer Assembly 4TH & 5TH Mainshaft Back Tapered ES52/ESO65/ESO66 $247.75 USD SYNCHRONIZER ASSEMBLY 4TH 5TH MAINSHAFT BACK TAPERED , SPICER ES52/ESO65/ESO66 Quantity2ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberINC TRK101-464-2X MLS Number14225179CategoryTransmission Parts Last Updated3/20/2026 LocationWatseka, IL, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Synchro Assembly Back Taper 33 Teeth 6/7TH & 4/5TH Gear $214.67 USD SYNCHRO ASSEMBLY BACK TAPER 33 TEETH SPICER ESO66-7 6/7TH GEAR ES43-5 4/5TH GEAR , Quantity2ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberINC TRK101-464-1X MLS Number14225178CategoryTransmission Parts Last Updated3/20/2026 LocationWatseka, IL, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos 1998 Spicer ESO66-7B Transmission $3,670.34 USD ConditionRemanufacturedTransmission7 SpeedFits To Make(s)SPICERFits To Model(s)ESO66-7BStock Number2613740 MLS Number14222304CategoryTransmissions Last Updated3/14/2026 LocationWatseka, IL, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Synchro 2-3 Back Taper $257.30 USD SPICER ESO66-7B SYNCHRO 2-3 BACK TAPER Quantity2ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberSST 101-464-3XR MLS Number13040027CategoryTransmission Parts Last Updated3/20/2026 LocationToledo, OH, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer Synchronizer Assembly 4TH & 5TH Mainshaft ES52/ESO65/ESO66 $224.10 USD SYNCHRONIZER ASSEMBLY 4TH 5TH MAINSHAFT BACKTAP[ERED , SPICER ES52/ESO65/ESO66 Quantity2ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberSST 101-464-2X MLS Number11313909CategoryTransmission Parts Last Updated3/20/2026 LocationToledo, OH, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos New Spicer ESO66-7B Mainshaft 2ND Gear, Part # 101-8-26 $188.63 USD MAINSHAFT 2ND GEAR SPICER ESO66-7B, CROSS: 101-8-26, ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberINC SGR104-8-7 MLS Number13864935CategoryTransmission Parts Last Updated3/20/2026 LocationAthens, GA, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 2 Photos View 0 Videos Spicer ESO66-7B Mainshaft 2ND Gear, Part # 101-8-26 $177.10 USD MAINSHAFT 2ND GEAR SPICER ESO66-7B, CROSS: 101-8-26, ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberGEN 104-8-7 MLS Number12413932CategoryTransmission Parts Last Updated3/20/2026 LocationHenderson, CO, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Mainshaft 2ND Gear, Part # 101-8-26 $85.10 USD MAINSHAFT 2ND GEAR SPICER ESO66-7B, CROSS: 101-8-26, ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberSST 104-8-7 MLS Number14183788CategoryTransmission Parts Last Updated3/20/2026 LocationPortland, OR, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Mainshaft 2ND Gear, Part # 101-8-26 $188.63 USD MAINSHAFT 2ND GEAR SPICER ESO66-7B, CROSS: 101-8-26, ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberINC SGR104-8-7 MLS Number14177655CategoryTransmission Parts Last Updated3/20/2026 LocationToledo, OH, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Mainshaft 2ND Gear, Part # 101-8-26 $176.91 USD MAINSHAFT 2ND GEAR SPICER ESO66-7B, CROSS: 101-8-26, Quantity2ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberSST 104-8-7 MLS Number14168604CategoryTransmission Parts Last Updated3/20/2026 LocationTampa, FL, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer Synchronizer Assembly 4TH & 5TH Mainshaft ES52/ESO65/ESO66 $224.10 USD SYNCHRONIZER ASSEMBLY 4TH 5TH MAINSHAFT BACKTAP[ERED , SPICER ES52/ESO65/ESO66 ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberSST 101-464-2X MLS Number14232988CategoryTransmission Parts Last Updated3/20/2026 LocationTampa, FL, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Synchro Assembly Back Taper 33 Teeth 6/7TH & 4/5TH Gear $224.10 USD SYNCHRO ASSEMBLY BACK TAPER 33 TEETH SPICER ESO66-7 6/7TH GEAR ES43-5 4/5TH GEAR , Quantity2ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberSST 101-464-1XR MLS Number11837369CategoryTransmission Parts Last Updated3/20/2026 LocationToledo, OH, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 4 Photos View 0 Videos Spicer ESO66-7B Transmission $3,670.34 USD ConditionRemanufacturedTransmission7 SpeedFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberREC ESO66-7B MLS Number13531847CategoryTransmissions Last Updated3/7/2026 LocationAthens, GA, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Input Shaft 1.180" Pilot 25 Teeth Back Tapered, Replaces 101-35-26-1X $202.06 USD INPUT SHAFT PILOT SIZE 1.180'' 25 TEETH BACK TAPERED SPICER ESO66-7B, REPLACED 101-35-26-1X ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberSST 101-35-39-1X MLS Number13808964CategoryTransmission Parts Last Updated3/20/2026 LocationAthens, GA, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Input Shaft 1.180" Pilot 25 Teeth Back Tapered $202.06 USD INPUT SHAFT PILOT SIZE 1.180'' 25 TEETH BACK TAPERED SPICER ESO66-7B, REPLACED 101-35-26-1X ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberSST 101-35-39-1X MLS Number13963236CategoryTransmission Parts Last Updated3/20/2026 LocationToledo, OH, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 5 Photos View 0 Videos Spicer ESO66-7B Transmission $3,795.34 USD REBUILT ESO66-7B HAS THREADED HOLES FOR TRANNY MT, NO REAR RETAINER ConditionRemanufacturedTransmission7 SpeedFits To Make(s)SPICERFits To Model(s)ESO66-7BStock Number2534054 MLS Number14218859CategoryTransmissions Last Updated3/2/2026 LocationTampa, FL, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Countershaft 4TH Gear $82.65 USD COUNTERSHAFT 4TH GEAR SPICER TTC ESO66-7B ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberSST 101-196-8 MLS Number14218389CategoryTransmission Parts Last Updated3/20/2026 LocationTampa, FL, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info
View 1 Photo View 0 Videos Spicer ESO66-7B Input Shaft $258.10 USD INPUT SHAFT SPICER TTC ES066-7B ConditionNewFits To Make(s)SPICERFits To Model(s)ESO66-7BStock NumberCCT 101-35-28-1X TT MLS Number14218288CategoryTransmission Parts Last Updated3/20/2026 LocationTampa, FL, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info