It looks like your browser does not have JavaScript enabled. Please read our
supported browser policy
for the best browsing experience.
Menu
FinditParts
Login
All orders proudly shipped from the U.S.A.
Close search
(888) 312-8812
Cart
Login
FinditParts
Find a Part
Shop by Manufacturer
Shop by Category
Shop by Truck
Track/Return Order
Contact Us
About FinditParts
Join FinditParts Pro
Industry News & Insights
Back
Average Truck Driver
Salaries
Truck Stop Safety
Dangerous Truck Roads
Safe Driving Around Semi Trucks
Truck Accident Statistics
Semi Truck Repair & Maintenance
Trucking Business Tips
View All Articles
Need help? We're here!
(888) 312-8812
Login
Signup
Electrical & Lighting
Engine & Drivetrain
Brakes, Suspension, & Steering
Body
Tire & Wheel
Other Parts & Supplies
Top Searches
Electrical, Lighting and Body
Air Bag System
Anti-Theft System
Body Actuators and Motors
Body Wiring Harness and Components
Brackets, Flanges and Hangers
Control Modules
Electrical Connectors
TOP SELLER
Electrical Sockets
Flasher Units, Fuses, and Circuit Breakers
Floor
Gaskets and Sealing Systems
Glass, Windows and Related Components
Hardware, Fasteners and Fittings
Lighting - Exterior
TOP SELLER
Lighting - Instrumentation
Lighting - Interior
Mobile Multi-Media
Power Outlets
Relays
Resistors
Sensors
Steering Wheel
Switches, Solenoids and Actuators
TOP SELLER
Towing
Trunk Lid and Compartment
Warning Buzzers
Wire, Cable and Related Components
Electrical, Charging and Starting
Alternator / Generator and Related Components
Battery and Related Components
Bearings
Brackets, Flanges and Hangers
Control Modules
Electrical Connectors
TOP SELLER
Hardware, Fasteners and Fittings
Lighting - Exterior
TOP SELLER
Relays
Sensors
Starter and Related Components
Switches, Solenoids and Actuators
TOP SELLER
Voltage Regulator
Close
Engine
Cylinder Block Components
Filters
TOP SELLER
Gaskets and Sealing Systems
Hardware, Fasteners and Fittings
Valve Train Components
Driveline and Axles
Axle Shaft
Bearings
Differential
Drive Shaft
Gaskets and Sealing Systems
Hardware, Fasteners and Fittings
Hubs and Related Components
Power Take Off (PTO) and Components
Service Kits
Switches, Solenoids and Actuators
Wheel Bearings, Seals, and Related Components
Air and Fuel Delivery
Carburetion
Filters
TOP SELLER
Fuel Injection System and Related Components
Fuel Pumps and Related Components
Fuel Storage
Gaskets and Sealing Systems
Hardware, Fasteners and Fittings
Turbocharger, Supercharger and Ram Air
Wire, Cable and Related Components
Transmission
Manual Transmission Components
TOP SELLER
Transmission Components
Transmission Hard Parts
Exhaust
Catalytic Converter
Exhaust and Tail Pipes
Hardware, Fasteners and Fittings
Mufflers
Ignition
Emission Control
Sensors
Belts and Cooling
Accessory Drive Belt System Components
TOP SELLER
Cooling Fan, Clutch and Motor
Gaskets and Sealing Systems
Hardware, Fasteners and Fittings
Hoses and Pipes
Radiators, Coolers and Related Components
Thermostat and Housing
Water Pump and Related Components
HVAC
A/C Clutch and Compressor
Air Heater Components
Filters
TOP SELLER
Hardware, Fasteners and Fittings
Hoses and Pipes
Motors, Core, Case and Related Components
Switches, Solenoids and Actuators
Close
Suspension
Air Bag System
Alignment
Brackets, Flanges and Hangers
Bushings
Hardware, Fasteners and Fittings
TOP SELLER
Instrument Panel
Sensors
Shocks and Struts
Suspension, Springs and Related Components
TOP SELLER
Switches, Solenoids and Actuators
Valves
TOP SELLER
Wire, Cable and Related Components
Steering
Brackets, Flanges and Hangers
Bushings
Control Modules
Filters
Gaskets and Sealing Systems
Hardware, Fasteners and Fittings
TOP SELLER
Power Steering Hoses, Pumps, and Related Components
Sensors
Steering Column
Steering, Gear and Related Components
Suspension, Springs and Related Components
TOP SELLER
Brake
ABS Components
Assortments
Body Wiring Harness and Components
Brackets, Flanges and Hangers
Brake Hydraulics
Brake System Service
Bushings
Control Cables
Control Modules
Disc Pads and Brake Shoes
Drums and Rotors
Electrical Connectors
Filters
Gaskets and Sealing Systems
Hardware, Fasteners and Fittings
TOP SELLER
Hoses and Pipes
Sensors
Service Kits
Switches, Solenoids and Actuators
Valves
TOP SELLER
Wire, Cable and Related Components
Close
Body
Appearance Products
Brackets, Flanges and Hangers
Bumper
Bushings
Console
Control Cables
Cowl
Dashboard
Doors
TOP SELLER
Fenders
Floor
Frame
TOP SELLER
Gaskets and Sealing Systems
Glass, Windows and Related Components
Glove Box
Grille
Hardware, Fasteners and Fittings
Hood
Horns
Hoses and Pipes
Instrument Panel
Mirrors
TOP SELLER
Pumps
Rear Body
Rocker Panel
Roof
Seats
Sensors
Service Kits
Side Body
Sleeper Cab
Steering Wheel
Switches, Solenoids and Actuators
Tailgate and Midgate
Towing
Truck Box
Truck Cab
Trunk Lid and Compartment
Universal
Vacuum Power System
Wire, Cable and Related Components
Wiper and Washer
Door Wiper Arm, Blade, and Related Components
Hardware, Fasteners and Fittings
Motors
Switches, Solenoids and Actuators
Windshield Washer and Related Components
Windshield Wiper Arm, Blade, and Related Components
Windshield Wiper Motor
Close
Tire and Wheel
Brackets, Flanges and Hangers
Control Modules
Gaskets and Sealing Systems
Hardware, Fasteners and Fittings
TOP SELLER
Hoses and Pipes
TOP SELLER
Sensors
Spare Tire and Wheel
Tire
Tire Service
Wheel
TOP SELLER
Close
Hardware and Service Supplies
Assortments
Bearings
Brackets, Flanges and Hangers
Bushings
Control Cables
Displays and Merchandisers
Electrical Connectors
Gaskets and Sealing Systems
TOP SELLER
Hardware, Fasteners and Fittings
TOP SELLER
Hoses and Pipes
Tubing
Valves
Wire, Cable and Related Components
Vehicles, Equipment, Tools, and Supplies
A/C Service
Body and Frame Equipment, Tools and Supplies
Brake System Service
Cleaning Tools, Equipment and Supplies
Disc Pads and Brake Shoes
Engine Service
Fuel Storage
Hand Tools
Hardware, Fasteners and Fittings
TOP SELLER
Hoist, Lift and Support
Hydraulic System Service
Information Labels
Lawn and Garden Equipment, Tools and Accessories
Power, Air, and Hand Tools and Accessories
Safety Equipment, Tools and Accessories
Shop Equipment, Tools and Accessories
TOP SELLER
Suspension, Springs and Related Components
Tire Service
Winch
Oil, Fluids and Chemicals
Adhesives, Sealants and Tape
Cleaners and Removers
Functional Fluid, Lubricant, Grease (including Additives)
Paint and Coatings
Multifunction Terms
Flasher Units, Fuses, and Circuit Breakers
Hardware, Fasteners and Fittings
TOP SELLER
Undercar
Underhood
Accessories
Brackets, Flanges and Hangers
Cylinder Block Components
Decals and Emblems
Exterior Accessories
Filters
Information Labels
Interior Accessories
Miscellaneous Merchandise
Close
Air Brake
Automatic Slack Adjuster
Bumper Bracket
Bumper Cover
Bumper Guard
Bumper Parts
Bumper Plate
Bumper Step
Console Cover
Console Cup Holder
Cowl Cover
Cowl Panel
Disc Brake Rotor
Door Hinge
Door Latch Striker Plate
Door Lock Actuator
Door Lock Kit
Door Lock Striker
Door Sill Plate
Fender
Fender Brace
Fender Bracket
Fender Cover
Fender Flare
Fender Liner
Fender Parts
Fender Support
Fender Trim
Hood Support
License Plate Bracket
Manual Slack Adjusters
Rear View Mirror Bracket
Side Skirt
Slack Adjuster
Steering Wheel Parts
Tow Hook Cover
Trailer Hitch Cover
Trailer Tow Hitch
Truck Bed Parts
Valance Panel
Window Crank Handle
Close
FREE ECONOMY SHIPPING
ON QUALIFYING ORDERS OVER $299
Categories
Transmission
Transmission Components
Transmission Countershaft
Transmission Countershaft
Searching...
1-48 of
80 results
Change Filters
Sort:
Sort by relevancy
Sort by bestselling
Sort by Price - Low to High
Sort by Price - High to Low
Sort by Manufacturer - A to Z
Sort by Manufacturer - Z to A
1 filter active
Clear all
PAI 900192
Transmission Countershaft - 43 / 16 Outer Teeth
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807093914
$
$172.99
In stock
Checking stock...
PAI EF60140
Transmission Auxiliary Countershaft - Fuller RTO B Transmission
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807107574
$
$147.49
In stock
Checking stock...
PAI 6373
Transmission Countershaft Gear - 4th / 8th Gear; Mack T2090, T2100, T2110 B & D, T2130, T2180, T309L, T310, T313L, T318L
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807240714
$
$411.49
In stock
Checking stock...
PAI 900190HP
Transmission Auxiliary Countershaft
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807086831
$
$436.99
In stock
Checking stock...
PAI 900186
Transmission Auxiliary Countershaft - Gear Fuller 14918/16918/18918/20918 Series Application
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807093846
$
$490.99
In stock
Checking stock...
PAI 6487
Transmission Countershaft Gear - T2090
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807241551
$
$405.99
In stock
Checking stock...
PAI 6484
Transmission Countershaft Gear - 5th Gear
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807241520
$
$420.49
In stock
Checking stock...
PAI 900191
Transmission Auxiliary Countershaft - 41/17/11 Outer Teeth 3/8in-16 Thread
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807093907
$
$404.49
In stock
Checking stock...
PAI EF60930
Transmission Countershaft - Fuller RT 14613 Transmission Application
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807110062
$
$376.99
In stock
Checking stock...
PAI 806912
Transmission Countershaft - Mack / Volvo
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807295318
$
$650.99
In stock
Checking stock...
PAI EF60140HP
Transmission Auxiliary Countershaft - High Performance; Fuller RTO B Transmission
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807065720
$
$269.99
In stock
Checking stock...
PAI 806905
Transmission Countershaft - w/o Rear Power Take Off w/ Oil Pump Mack T313L / T318L Series Application
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807231835
$
$1,356.99
In stock
Checking stock...
PAI EF60630
Transmission Countershaft - Fuller Transmission
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807109141
$
$171.49
In stock
Checking stock...
PAI 900051
Transmission Countershaft - Fuller 5005/5205 Midrange Trans Application
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807092542
$
$201.49
In stock
Checking stock...
PAI 6485
Transmission Countershaft Reverse Gear - T2090 Model
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807241544
$
$113.99
In stock
Checking stock...
PAI 6483
Transmission Countershaft Gear - 3rd Current Design Goes w/ GGB-6475 Must Change Both
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807241513
$
$202.49
In stock
Checking stock...
PAI 6710
Transmission Countershaft Cup
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807243739
$
$89.49
In stock
Checking stock...
PAI 900050
Transmission Countershaft - 21/17 Outer Teeth RTLO 16918
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807092535
$
$171.49
In stock
Checking stock...
PAI EF60170
Transmission Auxiliary Countershaft - Fuller RT 14609 Transmission
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807107604
$
$274.99
In stock
Checking stock...
PAI 2674
Transmission Countershaft Key
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807195045
$
$13.99
In stock
Checking stock...
PAI 6479
Transmission Countershaft Gear - 1st/5th T2080B
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807241490
$
$183.99
In stock
Checking stock...
PAI EF89980
Transmission Auxiliary Countershaft - 15/41/43 Teeth 11.04in Overall Length 3/8in-16 Thread Fuller RTLO 16918
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807029517
$
$261.49
In stock
Checking stock...
Newstar S-F317
Transmission Countershaft
Manufacturer
Newstar
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00643553226208
$
$311.99
In stock
Checking stock...
Newstar S-F232
Transmission Countershaft
Manufacturer
Newstar
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00643553226192
$
$300.49
In stock
Checking stock...
PAI 900055
Transmission Countershaft - Fuller 11709/12709/13709/14709/16709 Series Application
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
TOP SELLER
00193807092597
$
$372.49
In stock
Checking stock...
Newstar S-E072
Transmission Countershaft
Manufacturer
Newstar
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00643553224808
$
$341.49
In stock
Checking stock...
Fuller K3783
KT SHAFT,KIT COUN
Manufacturer
Fuller
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
$
$523.99
In stock
Checking stock...
Newstar S-20824
Transmission Countershaft
Manufacturer
Newstar
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00643553231677
$
$114.99
In stock
Checking stock...
Newstar S-6531
Transmission Countershaft
Manufacturer
Newstar
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00643553148395
$
$261.99
In stock
Checking stock...
Newstar S-27058
Transmission Countershaft
Manufacturer
Newstar
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00643553181507
$
$150.49
In stock
Checking stock...
Newstar S-17122
Transmission Countershaft
Manufacturer
Newstar
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00643553190349
$
$230.99
In stock
Checking stock...
Newstar S-11700
Transmission Countershaft
Manufacturer
Newstar
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00643553227984
$
$175.99
In stock
Checking stock...
Eaton K2944
Transmission Countershaft
Manufacturer
Eaton
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
$
$817.49
In stock
Checking stock...
Newstar S-21646
Transmission Countershaft
Manufacturer
Newstar
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00643553227069
$
$229.99
In stock
Checking stock...
Newstar S-20830
Transmission Countershaft
Manufacturer
Newstar
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00643553231738
$
$114.99
In stock
Checking stock...
Eaton K4491
Clutch Housing Front Cover Kit
Manufacturer
Eaton
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
$
$109.99
In stock
Checking stock...
Meritor 3297W1453
Transmission Countershaft - 26/17 Teeth, for 10-Speed Overdrive in.C in. Ratio
Manufacturer
Meritor
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
680502248386
$
$1,994.49
In stock
Checking stock...
PAI EF59170HP
Transmission Auxiliary Countershaft - Fuller
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00193807278496
$
$390.99
In stock
Checking stock...
PAI EF60210
Transmission Countershaft
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00193807107673
$
$471.99
In stock
Checking stock...
PAI EF60640
Transmission Countershaft - Fuller Transmission
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00193807109196
$
$304.49
In stock
Checking stock...
PAI EF60980
Transmission Countershaft - Fuller RT 15715 Transmission
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00193807110130
$
$358.49
In stock
Checking stock...
PAI 900188
Transmission Countershaft - 43/41/16 Outer Teeth Steel Includes washer
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00193807093877
$
$375.49
In stock
Checking stock...
PAI 900187OEM
Transmission Auxiliary Countershaft - Fuller
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00193807287184
$
$628.49
In stock
Checking stock...
PAI 806913
Transmission Countershaft - Mack / Volvo
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00193807295325
$
$650.99
In stock
Checking stock...
PAI EF60190
Transmission Auxiliary Countershaft - 16/46/43 Teeth 9.854in Length Fuller RTLO 16618/ RT/RTO/RTOO/RTLO 14613 / 14813 Transmission
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00193807107611
$
$376.49
In stock
Checking stock...
PAI EF60410
Transmission Countershaft - Auxiliary; Fuller RT/RTO A Transmission
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00193807108113
$
$313.49
In stock
Checking stock...
PAI 900189
Transmission Auxiliary Countershaft - 3/8in-16 Female Thread 43/41/16 Outer Teeth 11.040in Overall Length Early RTLO 16713A
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00193807093884
$
$382.99
In stock
Checking stock...
PAI EF60750
Transmission Countershaft - Fuller RTOF 14610 Transmission
Manufacturer
PAI
Part Type
Transmission Countershaft
Our Price
Fetching our lowest price...
00193807109769
$
$336.49
In stock
Checking stock...
1
2
Related Articles
Upgrade your Commercial Vehicle with Functional Features
General Trailer Maintenance Tips to Keep Your Trailer in Great Shape
5 Hilarious Trucking Stories that Will Crack You Up
