D4 Steering Clutch
D4 STEERING CLUTCHES

4G     6G    7J    2T    5T     6U    7U

The old D4 steering clutches, from the 4G/6G series, the 7J, 2T, 5T, and 6U/7U series originally used the riveted on lining style of friction discs. We can convert you to the bimetallic style friction discs and eliminate a lot of your steering clutch problems. We highly recommend converting to the bimetallic driving discs vs. the old riveted on lining style discs. This is an update to the earlier style clutches and cuts down on the possibility of frozen clutches and gives increased life and higher coefficient of friction to your clutches for a longer period of time.

Instead of using 8 friction discs with the riveted on linings and 8 steel separator discs, you will use 12 3F5504 bimetallic discs (sintered bronze) and 12 steel discs for each steering clutch. No other changes are required in inner driving drums or brake drums. You can, in most cases, re-use your existing 8 steel discs and merely add four more new steel discs to go with the 12 sintered bronze bimetallic discs needed for the conversion.

                                        uspsfreeshippingicon.jpg (27000 bytes)  In US only, via Priority Mail, 2-3 day delivery, on orders $500 or higher.

ORDERING INFO: 
GRIMY_Man_SM.jpg (55040 bytes)  We can usually ship on the same day any items we have in stock that do not have to be pulled from a machine. 
We are set up to offer the payment choices of either Visa, Master Card, or the PayPal option (to the account of webmaster@tractorparts.com)

All items below are in stock and if you would like to get any of them on the way just let us know!  If you are in the US you may call  1-800-531-9021 or if you are outside the US, 1 208 342 8911.  You may also email webmaster@tractorparts.com for orders/questions.

Our hours are Monday through Friday from 10 am Eastern Time to 6 pm Eastern Time (8 am Mtn Time to 4 pm Mtn Time).  We are located 20 miles east of Boise, Idaho.



D4 3F5504 ( qty 12) Bimetallic friction discs @ $18.00 EA.
D4 2B8955 (EARLIER P/N 3F9073)  (qty 12) Steel Discs $10.00 EA.

CAT D4 STEERING CLUTCH PACK  D4 CLUTCH DISCS

In the later D4 7U the design of the steel separator plates changed to match a newer style inner driving drum.  The quantities used became 11 Bimetalic discs and 11 Steel separator plates:

D4 CLUTCH DISCS.JPG (87624 bytes)

Late D4 7U 3F5504 (qty 11) Bimetallic fricton discs @ 18.00 ea
Late D4 7U 2H6936 (qty 11) Steel Separator Plates @ 12.00 ea

CAT-8H1174DRUM.jpg (86162 bytes)   8H1174 inner driving drum for later D4's and 955 12A's        NEW         $185.00

CAT_2B8824_D4_BRAKE_DRUM.JPG (361701 bytes)    2B8824 BRAKE DRUMS FOR EARLY D4 MODELS
4G 6G 7J 2T 5T 6U 7U 40A 78A CRAWLERS AND 955 12A   TRACK LOADERS      NEW       $215.00 EA

 

D4CLUTCHSPRINGS.JPG (174371 bytes)    D4 STEERING CLUTCH SPRINGS AND CLUTCH COMPRESSION TOOL  NEW

6B8807 OUTER SPRING (8 REQUIRED)  4.00 EA
6B8804 INNER SPRING (8 REQUIRED)   3.50 EA
CLUTCH COMPESSION TOOL                 65.00 EA


CAT_D4_STEERING_CLUTCH_THROW-OUT_BEARING_1B4102.JPG (186758 bytes)  NEW D4 STEERING CLUTCH THROW-OUT BEARING       P/N 1B4102           $45.00 EA
FITS D4 4G 7J 2T 5T 6U 7U VINTAGE MODELS AS WELL AS D4C AND D4D TRACTORS
ALSO FITS 955 12A AND 955 60A     THIS BEARING WILL EVEN FIT THE DIESEL 40 CRAWLERS 

D4LININGKIT.JPG (94706 bytes) D4 LINING KITS FOR 3 PIECE BRAKE BAND. (Includes Rivets)
FITS MODELS D4 4G-6G-7J-2T-5T-6U-7U #1 thru 40736          5H6031       $42.00 for one complete brake band kit
The early parts manuals show a lining kit of 5F1016 that covers both brake bands.....The 5F1016 equals qty (2) of the 5H6031

CATERPILLAR FLYWHEEL CLUTCH PARTS

Caterpillar made periodic changes to the cast flywheel clutch pressure plates and backing plates.  Over time most of the early plates have been cracked/worn and replaced with the latest update 2H6776 and the 2H6777 (2H8380) cast plates.  If have the updated versions, you are in good shape as you only have to replace the casting that may be broken/worn/warped or no longer usable.  If you have any of the earlier castings and have to replace one of them,  you will have to replace both the front and back castings with the later castings.

5F7048DISC6Y7161.JPG (106884 bytes)       D4 FLYWHEEL CLUTCH PLATE  5F7048 --> 6Y7161 -->1177197  $75.00 EA

2H6776__D4_CLUTCH_DISC.JPG (169996 bytes)      2H6776_D4_CLUTCH_DISC.JPG (140998 bytes)    D4 FLYWHEEL CLUTCH PRESSURE PLATE    2H6776     NEW $160.00
(earlier casting numbers were 3B0606, 5B2921, 7B0749, 8F2950, 2F5461..........If you have one of these early numbers on your olsd clutch, you will either have to find a good used identical replacement with the same casting number or replace both the front and back castings of your flywheel clutch.

 

2H6777_2H8380_D4_CLUTCH_DISC.JPG (168987 bytes)      2H8380_2H6777_D4_CLUTCH_DISC.JPG (146884 bytes)    D4 FLYWHEEL CLUTCH PLATE (GEARED PLATE)  2H6777--->2H8380   NEW  $180.00
(earlier casting numbers were 3B0650,4B5923, 4B5924, 5B2924, 5B2922.......If you have one of these early numbers on your olsd clutch, you will either have to find a good used identical replacement with the same casting number or replace both the front and back castings of your flywheel clutch.


CAT-D4CLUTCHCOLLAR3B06963B06971M18161M1817.jpg (110315 bytes)      D4 FLYWHEEL CLUTCH COLLAR.....TWO PIECE THROW-OUT FOR D4 MODELS 4G, 7J, 2T, 5T, 6U, AND 7U                                                 P/N'S   3B0696->3B0697 -> 1M1617-> 1M1618      COMPLETE COLLAR          $155.00

CAT-4S9074DISC.jpg (25028 bytes)  D4 FLYWHEEL CLUTCH OIL TYPE CLUTCH DISCS.............ALSO FIT THE 955 12A   NEW   $42.00 EA
2H6121--->4H2923--->1S8183--->4S9074 PART NUMBERS  2 REQUIRED PER FLYWHEEL CLUTCH

CAT_FINAL_DRIVE_SEAL_ASSY.JPG (138527 bytes)        Bellows type final drive seals for the early D4 are in stock.  $119.00  CLICK HERE FOR DETAILS
D4 FINAL DRIVE SEAL 1A7589--->3B5706--> 1H9887--> 5H0425 BELLOWS SEAL


CAT_6B1360_PINION_GEAR.JPG (192278 bytes)   TO PROTECT YOUR FLYWHEEL RING GEAR WE HAVE PRODUCED NEW STARTER PINION GEARS...6B1360   $121.00

OR!!!!!IF YOU WANT TO GET RID OF THE STARTER PINION GROUP AND PONY MOTOR BOTH, YOU CAN CONVERT TO 24V DIRECT
ELECTRIC START.........AND YOU WILL NEED A FLYWHEEL HOUSING 
CAT_D4_FLYWHEEL_HSG_ELEC_START.JPG (382904 bytes)   THE ONE ON THE LEFT WILL FIT THE D4 7J, 2T, 5T, AND EARLY 6U AND 7U CRAWLERS   $400.00 AND THE ONE ON THE RIGHT WILL FIT LATE 6U'S AND 7U'S AND FIT BOTH THE DRY CLUTCH AND OIL TYPE CLUTCH 6U/7U'S.  ALSO $400.00


MAGNETO D4.JPG (154643 bytes)   D4 MAGNETO   Fits the D4400 and D315 engines used in the D4 crawlers model
4G, 7J, 2T, 5T, 6U, and 7U.  This magneto also fit the 955 12A track loader and early 112 Motor
Graders.  If the starting engine fit on top of the flywheel housing, this magneto was used.      $355.00


D4 STEERING CLUTCH DIS-ASSEMBLY IN PICTURES

CAT_D4_STEERING_CLUTCH_DISASSEMBLY1.JPG (180960 bytes)
CAT_D4_STEERING_CLUTCH_DISASSEMBLY2.JPG (186223 bytes) CAT_D4_STEERING_CLUTCH_DISASSEMBLY3.JPG (191597 bytes)
The "T" bar puller can be used with the center  push-bolt or a
hydraulic cylinder.
CAT_D4_STEERING_CLUTCH_DISASSEMBLY4.JPG (186527 bytes)
We have a lot of misc pins
laying around but this chunk
of steel fit perfectly.
CAT_D4_STEERING_CLUTCH_DISASSEMBLY5.JPG (181703 bytes)
On a D2 or a D4 the clutches
are pressed off end of bevel
gear cross shaft.  On
D5 D6 D7's you press off a tapered splined stub shaft and flange.
CAT_D4_STEERING_CLUTCH_DISASSEMBLY6.JPG (185380 bytes)
Removal of bearing cage and
bearing makes disassembly
easier.
Don't forget to remove set
screws in retainer nut!!
CAT_D4_STEERING_CLUTCH_DISASSEMBLY7.JPG (188198 bytes)
When you press down on the compression tool you want something to keep the studs in place so get a spacer to keep studs from dropping when you turn the clutch over.
CAT_D4_STEERING_CLUTCH_DISASSEMBLY8.JPG (190987 bytes)
You can use a press like we usually do but unless you do a lot of these clutches a simple piece of all-thread is all that you need.  Anchor it through your work bench or table.
CAT_D4_STEERING_CLUTCH_DISASSEMBLY9.JPG (192568 bytes)
Place compression tool and add a washer to disperse the pressure over the face of the tool.  Otherwise you can end up with a concave tool!
CAT_D4_STEERING_CLUTCH_DISASSEMBLY10.JPG (187226 bytes)
With your spacer underneath to keep your studs in place (shown above)
and compression tool on top
you are ready to compress the springs.
CAT_D4_STEERING_CLUTCH_DISASSEMBLY11.JPG (177407 bytes)
As the springs compress the end of the studs will gain clearance until the locks
are free from the retainers.
CAT_D4_STEERING_CLUTCH_DISASSEMBLY12.JPG (185189 bytes)
Remove all of the locks and be careful not to lose any!
When you put these back in you apply grease to the locks
keep them in place.
CAT_D4_STEERING_CLUTCH_DISASSEMBLY13.JPG (184208 bytes)
Release all pressure and remove compression tool.  You can now remove retainers and springs.
CAT_D4_STEERING_CLUTCH_DISASSEMBLY14.JPG (182223 bytes)
Now is time to check measurements on springs.
if any are shorter than the others by 1/8" it should be replaced. It is probably a good practice just to replace them due to low cost and the labor involved if you have to go back in there again!
CAT_D4_STEERING_CLUTCH_DISASSEMBLY15.JPG (186083 bytes) CAT_D4_STEERING_CLUTCH_DISASSEMBLY16.JPG (188792 bytes)
Now you can remove all the parts for inspection of discs and components.

Minor rippling on the inner drum is fine.

Make sure stud holes on pressure plate are not wallowed out or worn too far below the surface.

CATERPILLAR STEERING CLUTCH SPEC SHEET

CATERPILLAR D4 6U/7U GENERAL SPECIFICATIONS CLICK HERE
......and for a revised version (CLICK HERE)


Click HERE to view all of our new steering clutch discs.
 

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CLICK HERE FOR DETAILS

 

Email  webmaster@tractorparts.com for orders or questions.

 
CONTACT OUR OFFICE at 1-208-342-8911

General Gear and Machine, 733 Desert Wind Rd.,
Boise, Idaho, 83716  US
*All prices are in USD & do not include shipping
All prices are for new aftermarket unless stated otherwise
All OEM part numbers are for references only

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