The Eaton 2000 Series PTOs are premium, side-mount PTO units engineered for demanding hydraulic applications in commercial and vocational vehicles. Known for their reliability, modular configuration, and easy serviceability, these PTOs are a trusted solution in sectors ranging from construction and refuse collection to towing and municipal fleets.
Eaton uses a modular part numbering system that helps identify the exact configuration, this helps technicians and parts managers quickly identify and cross-reference to the correct unit. Each number is broken down into eight sections, so a product number will look like this:
PT 2000 X J N 01 1 DA
We'll break down each section below, but as a summary:
Eaton Part
Series
Versions
Internal Ratio
Shifter Type
Input Gear
Assembly Arrangements
Output Type
PT
2000
Standard mounting, 8 bolt
X
Standard
A
1:0.5
C
Cable
1
Fuller Series (R/675)
1
Right, Forward
DA
ISO 4-bolt
2010
Deep mounting, 8 bolt
G
Greaseable Output Shaft
B
1:0.55
W
Wire
2
Universal (R/683)
2
Right, Rear
IA
Flange SAE 1100
P
Oil Pressure Lube
C
1:0.73
M
Constant Mesh
3
Spicer (R/736)
3
Left, Forward
IB
Flange SAE 1300
E
1:0.8
N
Air
5
Spicer (R/677)
4
Left, Rear
IC
Flange SAE 1400
J
1:0.95
6
Fuller (Tremec) (R/679) 07
Navistar (R/693)
SE
SAE Type 1 1/4” round shaft
O
1:1.25
8
Spicer (R/682)
SF
SAE“A”2bolt9T
R
1:1.37
9
Spicer (R/684)
SH
SAE“AA”2bolt11T
S
1:1.50
10
Chevy (R/678)
RA
SAE “B” 2/4 bolt 13T. rotatable
T
1:1.165
11
Chevy/Spicer (R/699)
RB
SAE “BB” 2/4 bolt 15T. rotatable
13
New Process (R/718)
TP
Tyron Pump (Chelsea type)
14
Fuller (R/737)
15
Eaton/Fuller FS-4005C/4205C (R/717)
16
ZF (R/716)
17
Eaton 6305 A (R/680)
18
Eaton FS 3005/4005 AB (R/681)
20
Dodge (R/701)
21
ZF S5-42/5.72 (R/676)
22
Eaton/Fuller (R/738)
23
Eaton/Fuller FS-3005 B (R/714)
24
Mack (R/695)
25
Eaton/Fuller FS-7206 A (R/715)
27
Eaton/Fuller (R/692)
28
Fuller (R/771)
30
Eaton/Fuller (R/698)
33
Spicer (R/697)
34
Spicer (R/696)
36
New Process (R/739)
39
Warner (R/741)
41
Warner (R/743)
42
Fuller (R/770)
50
ZF (R/694)
51
Dodge (R/702)
52
ZED/F (R/700)
55
Mack/Renault (R/748)
56
Tremec (R/744)
57
ZF (R/740)
61
Ford (R/754)
64
Allison (R/752)
66
Fuller (R/862)
67
Aisin (R/870)
68
Tremec (R/897)
70
Mercedes G60 (R/956)
75
Endurant (G/210)
2000 vs. 2010 Series: What’s the Difference?
Feature
2000 Series
2010 Series
Mounting Depth
Shallow
Deep
Use Case
Frame clearance issues
Larger pumps & hoses
Common Fitment
Dump trucks, roll-offs
Cranes, refuse trucks
Both series share the same internal gear train, output shaft options, and torque ratings. The difference lies primarily in physical dimensions, allowing better pump clearance and chassis fitment.
Available Versions
There are three general versions available when choosing a 2000 series PTO:
Standard (X)
No self-lubrication. Gear teeth must be manually greased via service intervals.
Simpler design
Requires regular maintenance
Ideal for low-to-moderate use
Greasable Shaft (G)
Includes a zerc fitting on the output shaft for targeted lubrication.
Better for low RPM applications
Helps counter vibration and shaft misalignment
Common in paving equipment, refuse trucks
Pressure Lubricated (P)
Oil is fed directly from the transmission or an internal oil pump for constant lubrication.
Best for continuous-duty cycles
Handles high torque/high speed
Recommended for cranes, sweepers, or hydraulic drills
Internal Gear Ratios
PTO gear ratio affects output speed and torque. Eaton offers a wide range to match different applications:
Ratio Code
Output Speed (vs Engine)
Use Case
A (50%)
Half engine speed
Winches, basic hydraulic tools
C (73%)
Moderate speed/torque balance
Dump beds, tilts
E (86%)
Higher torque
Vacuum pumps, sweepers
S (150%)
Faster RPM
Smaller high-speed pumps
Tip: Higher output speed = less torque. Lower speed = more torque.
Always balance pump capacity with desired flow rate (GPM) to avoid overdriving.
Shifter Types
There are several types of shifting mechanisms available when choosing a PTO, each have their pros and cons:
C – Cable Shift
A mechanical control operated from inside the cab.
Simple & durable
Stiffer over long cable runs
Good for older trucks and manual systems
W – Wire Shift
A more rudimentary cable system, often using a push-pull throttle-like cable.
Cost-effective
Not as precise
Limited to legacy equipment
M – Constant Mesh
A clutchless system that keeps gears engaged, enabling instant PTO engagement.
No gear clash
Smooth, reliable
Requires matched RPMs during engagement
Ideal for high-use industrial trucks
N – Air Shift
Controlled by a cab-mounted pneumatic switch; engages a piston in the PTO.
Fast, smooth shift
Excellent for automated systems
Requires air supply & lines
Common in municipal fleets, tow trucks, fire apparatus
Input Gear
The input gear is a precision-machined spline or gear that transfers rotational energy from the transmission to the PTO.
How It's Selected
Transmission model
Tooth count & pitch
Rotation direction (CW or CCW)
Transmission Compatibility
Bezares provides input gears specifically keyed to:
Eaton/Fuller 10, 13, 18-speed
Allison 1000/2000/3000/4000 series
Mack Maxitorque
Spicer and Meritor 9-speed
Always verify OEM transmission specs before ordering a PTO.
Assembly Arrangements
These refer to shaft orientation and how the PTO is mounted to the vehicle.
Arrangement
Mounting Side
Output Faces
Notes
Right Rear
Passenger side
Backward
For direct shaft drive
Right Forward
Passenger side
Forward
Tight frame spaces
Left Rear
Driver side
Backward
Direct pump mounting
Left Forward
Driver side
Forward
Niche configurations
Use the correct orientation to align with hydraulic hose routing and avoid component interference.
Output Types
Each PTO can be equipped with different output types to fit specific accessories:
SAE 'B' / SAE 'C' Flange Mounts – Standard for hydraulic pumps
DIN Mounts – Common in European setups
Keyed Shaft – Direct coupling to mechanical devices
Splined Shaft – Better torque transfer, less slip
Proper alignment is essential to avoid pump damage and ensure efficient torque transfer.
The Eaton 2000 Series Power Take-Offs (PTOs) offer an exceptional combination of durability, versatility, and reliability, making them a trusted choice for a wide range of demanding hydraulic applications. Whether you're operating in construction, refuse collection, or any other heavy-duty sector, the 2000 Series ensures optimal performance with its robust construction, superior sealing, and flexible shifting options. With easy serviceability and a variety of configurations to suit different needs, these PTOs are designed to keep your operations running smoothly and efficiently for years to come.
More Information
Check out these other great resources about PTOs.
Power Take-off (PTO) Devices: Your Essential Guide
Welcome to today’s video! If you’ve ever needed to identify an Eaton 2000 series PTO, you’ve probably noticed that the part number can seem a bit intimidating at first. But don’t worry—once you know how to break it down, you’ll be able to quickly identify the unique features and variations. In this video, we’ll guide you through how to decode the Eaton PTO part number, focusing on the 2000 series. By the end, you’ll have all the tools you need to easily identify the specifications of your PTO. Plus, we’ve included a helpful article in the description for a deeper dive into all the available options. Let’s dive in!
While the part number may seem long and complex, once you know how to break it down, identifying the nuances of a PTO becomes much easier. Every Eaton PTO number follows a standard breakdown into sections. We’ll focus on the 2000 series in this video, but a similar format is used across all PTOs. The number is divided into 8 key sections.
Side note: We’re going to cover a lot of variations in this video. To help you with the more in-depth details, be sure to check out the article linked in the description for all the options available when identifying your PTO.
We’re looking at Eaton PTOs so the first two characters will always be PT, which identifies it as Eaton.
— The Next four digits represent the series. For instance, 2000 is for a standard mount, and 2010 is for a deep mount.
— The next letter indicates the version of the PTO. X represents the standard version, G is for a greaseable output shaft, and P is for oil pressure lube.
- After that, we have internal ratio. For example, A indicates a 1:0.5 ratio, while T indicates a 1:165 ratio.
Be sure to always refer to your Power take off application guide to make sure you’re choosing the correct final PTO speed ratio.
— The next number indicates the shifter type, whether it’s cable, wire, constant mesh, or air.
—Digits 10 and 11 identify the input gear. The input gear is specific to the type of transmission you have as it needs to mesh with the gearing. There are 44 variations, so be sure to refer to the article for detailed information about your specific PTO.
— Digit 12 shows the assembly arrangement, for example, is the PTO mounted right and forward? Left and rear? This number tells you.
— The two final letters indicate the output type, or how the PTO interfaces with your equipment’s pump, shaft, etc.
So for example, let’s look at the PTO in front of me, it’s a PT 2000 X C N 01 1 RA.
Let’s break this down:
• PT means we’re looking at an Eaton PTO.
• 2000 indicates it’s the 2000 series, a standard mount, 8-bolt version.
• X means it’s the standard version.
• C represents the internal ratio, so in this case, it’s a 1:0.73 ratio.
• N indicates the shifter type is air-shifted.
• 01 represents the input gear, specifically the Fuller series.
• 1 indicates the assembly is to the right and forward.
• Lastly, RA, which means the output setup is SAE “B” 2 or 4 bolt 13T, rotatable.
There you have it! You now know how to decode the Eaton 2000 series PTO part number and easily identify its key features. Remember, the article linked in the description is a great resource for further details on all the variations and options you might encounter. If this video was helpful, share it with a friend of colleague. Thanks for watching, and we’ll see you in the next one!
