A20 Series Power Take-Off

Designed for Allison 3000 & 4000 Series Transmissions

The A20 is the new 10-bolt medium-duty, clutch-shift PTO rated for up to 415 lbs.ft. torque intermittent/continuous and features various product improvements allowing for easier installation and a more durable PTO for Allison 3000 and 4000 Series transmissions.

 

ROTATABLE PUMP FLANGE

  • Stamped with position codes
  • 30 unique positions allows for optimal clearance
  • More flexibility when mounting pumps
  • Flange is easily adjustable without seal disturbance
  • Can be shipped loose or at a specific position code for quicker mounting

SELECT FLANGE POSITION

 

TARGET MARKETS

  • Class 7-8 trucks with automatic transmissions
  • Dump
  • Fire
  • Refuse
  • Utility
  • Tow & Recovery
  • Snow & Ice
  • Bulk Hauling
Crossover legacy for CS24, CS25, HS24, and MC1 PTOs below.

PTO Series
Gear
Ratio
Shift Type
Assembly
Output
Feature

A20 - xxx xx - xx - x xx xx

  • New rotatable pump flange 
  • Increased clearance for easier installation
  • Shift cover allowing 360-degree rotation
  • Proven clutch pack design 
  • Tapered roller bearings increasing PTO life 
  • Increased output shaft diameter for  higher durability 
  • Reduced leak paths 
  • Maximized gear design for noise reduction
  • Single intermittent/continuous  torque rating 
  • Three housing arrangements 
  • Extended length PTO mounting fasteners  
  • Compatible with EX Drive shaft extension  
  • Tool kit available for easier installation 

 

AVAILABLE WITH THE MUNCIE START®

The Muncie Start is an electronically controlled, modulated clutch engagement system from Muncie Power Products that eliminates torque spikes through the power take-off, truck drivetrain and mounted auxiliary equipment upon startup for high-inertia loads. Allowing for a smooth engagement of the power take-off, Muncie Start increases the life of the PTO and driven mechanical components

AVAILABLE WITH THE EX DRIVE SHAFT EXTENSION

The Muncie EX Drive was designed to fit on Allison 3000 and 4000 series transmissions with retarder or cooler, and allows for large gear or piston pumps to be direct mounted, eliminating the need for timely driveline installations. The EX Drive provides maximum torque from the PTO, and is available for the A20 Series PTO.

Brochure
  • A20 EX Drive Brochure
    MP21-03
    VIEW
  • A20 Series Power Take-Off Brochure
    MP21-01
    VIEW
  • Installation Tool Kit Brochure for A20 and A30 PTOs
    MI21-01
    VIEW
Installation Instructions
  • A20 10-Bolt Clutch Shift PTO Activation Hino Chassis/Allison 3000
    IN21-03
    VIEW
  • A20 10-Bolt Muncie Start® PTO Activation
    IN21-04
    VIEW
  • A20 10-Bolt PTO Installation
    IN21-01
    VIEW
  • A20 Series 10-Bolt Clutch Shift PTO Activation
    IN21-02
    VIEW
  • PTO Operator's Manual
    IN17-04
    VIEW
  • Rebuild Instructions for A20 PTO
    IN21-06
    VIEW
Service Parts Manual
  • A20 Service Parts Manual
    SP21-01
    VIEW
  • Product Bulletin - A20 Series PTO Product Launch
    PB00096
    VIEW
 

SPEED

RATIO

3000 SERIES

ENGINE %

4000 SERIES

ENGINE %

INTERMITTENT CONTINUOUS HP (KW)

@ 1,000 RPM

INTERMITTENT/CONTINOUS

TORQUE LBS.FT. (NM)

05 74% 105% 77 (57) 400 (542)

06

85% 122% 77 (57) 400 (542)

07

99% 141% 79 (59) 415 (563)

08

114% 163% 69 (51) 360 (488)

09

122% 175% 65 (48) 340 (461)

10

131% 187% 59 (44) 310 (420)

11

151% 215% 52 (39) 275 (373)

12

162% 231% 50 (37) 265 (359)

15

201% 287% 39 (29) 205 (278)

Approximate Weight: 47.2 lbs. (21.4 Kg.)

The Muncie Power Take-Off is warranted to be free of defects in material or workmanship and to meet Muncie’s standard written specifications at the time of sale. Muncie’s obligation and liability under this warranty is expressly limited to repairing or replacing, at Muncie’s option, within one year (two years on Allison World Transmission PTOs) after date of original installation any defective part or parts or any product not meeting the specifications.

 

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED. MUNCIE MAKES NO WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR ANY PARTICULAR PURPOSE. MUNCIE’S OBLIGATION UNDER THIS WARRANTY SHALL NOT INCLUDE ANY TRANSPORTATION CHARGES OR COSTS OF INSTALLATION OR ANY LIABILITY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR DELAY. THE REMEDIES SET FORTH HEREIN ARE EXCLUSIVE, AND MUNCIE’S LIABILITY WITH RESPECT TO ANY CONTRACT OR SALE OR ANYTHING DONE IN CONNECTION THEREWITH, WHETHER IN CONTRACT, IN TORT, UNDER ANY WARRANTY, OR OTHERWISE, SHALL NOT, EXCEPT AS EXPRESSLY PROVIDED HEREIN, EXCEED THE PRICE OF THE PRODUCT OR PART ON WHICH SUCH LIABILITY IS BASED.

 

If requested by Muncie, products or parts for which a warranty claim is made are to be returned transportation prepaid to a Muncie Service Center. Any installation or use not in accordance with catalog or package instructions, other improper use, operation beyond capacity, substitution of parts not approved by Muncie, use with equipment other than the equipment on which the Power Take-Off is first installed, or alteration or repair made to the Power Take-Off other than at a Muncie Service Center, shall void this warranty. No employee or representative of Muncie is authorized to change this warranty in any way or to grant any other warranty.