8D9040 LINES GP-RETARDER-PART 1 OF 2 TYPE 2 8P7703-PAGE 135 PART OF 6G4499 RETARDER AR AN ATTACHMENT 621B

POWER TRAIN

LINES GP-RETARDER

0. 8D-9040 LINES GP-R
1. 8D-9040 LINES GP-R

VALVE GP

2. 6D-3943 VALVE AS

VALVE GP-RETARDER CONTROL

3. 8P-7703 VALVE GP-R

PUMP GP

4. 8D-6050 PUMP GP-GE

RETARDER GP

5. 6G-4499 RETARDER A
6. 2P-9305 RETARDER G
7. 2P-9305 RETARDER G

DIFFERENTIAL & BEVEL GEAR GP

8. 8D-5059 DIFFERENTI

PUMP GP

9. 2P-9313 PUMP GP-GE
0. INFORMATION

WHEEL TRACTOR 621B WHEEL TRACTOR 45P
621B TRACTOR / POWERSHIFT / 45P02712-UP (MACHINE) POWERED BY 3406 ENGINE SEBP1266 621B 45P (1973)

POWER TRAIN

LINES GP-RETARDER

8D-9040 LINES GP-RETARDER

#SEBP12660330

8D-9040: LINES GP-RETARDER

LINES GP-RETARDER

8D9040 LINES GP-RETARDER-PART 1 OF 2
TYPE 2
8P7703-PAGE 135
PART OF 6G4499 RETARDER AR
AN ATTACHMENT

c333086 SEBP1266

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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	030-7950	[1]	ELBOW
2.	3D-2824	[2]	SEAL-O-RING
3.	2G-9938	[1]	TUBE AS
4.	8M-5661	[5]	SEAL-O-RING (O-RING)
5.	9D-4906	[1]	TUBE AS
	1P-3705	[1]	SEAL (RECTANGULAR)
6.	1A-5822	[1]	BOLT 6.99CM(2.75IN.)LG.
7.	2P-1297	[1]	TEE
8.	6V-0314	[4]	BOLT-SELF LOCKING
9.	3D-7587	[2]	ELBOW
10.	5B-5059	[3]	BOLT
	5P-8244	[3]	WASHER
11.	1P-4577	[8]	FLANGE-HALF
12.	8M-4987	[2]	SEAL-O-RING
13.	5P-9938	[16]	BOLT-SELF LOCKING
14.	5M-2894	[17]	WASHER
15.	7K-2828	[1]	CLIP
16.	9D-5379	[1]	HOSE AS
17.	8P-7703 Y	[1]	VALVE GP-RETARDER CONTROL
18.	8M-8281	[1]	SEAL
19.	9M-7539	[1]	SEAL
20.	8M-5010	[1]	SEAL
21.	8D-9035	[1]	HOSE AS
22.	1P-4579	[8]	FLANGE-HALF
23.	5K-7143	[17]	BOLT 3.81CM(1.5 IN.)LONG
24.	5P-8245	[20]	WASHER
25.	3J-5389	[1]	PLUG
26.	8D-8429	[1]	HOSE AS
27.	9D-5374	[1]	HOSE AS
28.	4J-0520	[2]	SEAL
29.	8D-9036	[1]	HOSE AS
30.	5K-9107	[1]	BOLT-SELF LOCKING
31.	8D-8430	[1]	HOSE AS
32.	7D-7233	[1]	CLIP
33.	030-7965 C	[1]	ELBOW
34.	5P-7213	[2]	WASHER-HARD
35.	2Y-1834	[1]	CLIP
	C		CHANGE FROM PREVIOUS TYPE
	Y		SEPARATE ILLUSTRATION

#SEBP12660331

8D-9040: LINES GP-RETARDER

LINES GP-RETARDER

8D9040 LINES GP-RETARDER-PART 2 OF 2
TYPE 2
6D3943-PAGE 134
PART OF 6G4499 RETARDER AR
AN ATTACHEMNT

c333087 SEBP1266

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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	4S-7563 C	[2]	HOSE AS
2.	3B-7273 C	[1]	NIPPLE-PIPE
3.	8D-4765	[1]	REGULATOR
4.	5H-4778 C	[2]	ELBOW-EXTERNAL PIPE THREAD
5.	9D-6677	[1]	HOSE AS
6.	4H-6147 C	[3]	CONNECTOR-PIPE
7.	6D-3943 Y	[1]	VALVE AS
8.	4S-7530	[1]	HOSE AS
9.	3J-7354 C	[1]	SEAL-O-RING
10.	1P-4577	[4]	FLANGE-HALF
11.	8W-0251 C	[1]	BRACKET
12.	030-8538	[2]	BOLT
13.	5P-8245	[2]	WASHER
14.	030-8537	[4]	BOLT-SELF LOCKING 3.81CM(1.5 IN.)LONG
15.	9D-5378	[1]	HOSE AS
16.	9D-5377	[1]	HOSE AS
17.	4J-0520	[2]	SEAL
18.	5P-9938	[4]	BOLT-SELF LOCKING 3.49CM(1.375IN.)LG.
19.	3P-0777	[1]	VALVE GP-BYPASS
	3P-0775	[1]	BODY-CONTROL VALVE
	6P-3206	[1]	VALVE AS-CONTROL
	3P-0774	[1]	GASKET
20.	9M-8662 C	[1]	COUPLING
21.	9D-8040 C	[1]	HOSE AS
	5P-1421 BE		HOSE
22.	4D-1097	[1]	COUPLING
23.	3D-9129	[1]	COUPLING
24.	4J-5268 C	[1]	SEAL
25.	5D-0353 C	[2]	BOLT-SELF LOCKING
26.	5M-2894 C	[10]	WASHER
27.	5P-7981 C	[1]	ELBOW-O-RING
	2P-9481 F	[1]	FILM-HYDRAULIC RETARDER
	B		USE AS REQUIRED
	C		CHANGE FROM PREVIOUS TYPE
	E		ORDER BY THE CENTIMETER
	F		NOT SHOWN
	Y		SEPARATE ILLUSTRATION

#SEBP12660332

6D-3943: VALVE AS

VALVE AS

6D3943 VALVE AS
RETARDER
PART OF 8D9040 LINES-RETARDER
AN ATTACHMENT

c529569 SEBP1266

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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	4B-1328	[2]	SCREW-MACHINE
2.	4D-5253	[1]	SCREW-SET
3.	4D-7066	[1]	HANDLE AS
4.	7D-4048	[1]	KNOB-BROWN
5.	4D-5254	[1]	RING-LOCKWASHER
6.	4D-5252 C	[1]	RING-ADJUSTING
7.	4D-5256	[1]	SEAL-O-RING
8.	7D-2117	[1]	CAM & FOLLOWER AS
9.	4D-5245	[1]	COVER
10.	4D-5248	[1]	GASKET
11.	7D-4049	[1]	PISTON AS
12.	3H-1461	[1]	SEAL-O-RING
13.	4D-5262	[1]	SPRING-RETURN
14.	7D-4050	[1]	VALVE AS
15.	4M-8303	[1]	SEAL-O-RING
16.	4B-1319	[2]	SCREW-MACHINE
	3B-4504	[2]	LOCKWASHER
17.	4D-5243	[2]	LOCKWASHER
18.	4D-5239	[2]	BOLT-12 POINT HEAD
19.	4D-5238	[1]	CLAMP
	C		CHANGE FROM PREVIOUS TYPE

#SEBP12660333

8P-7703: VALVE GP-RETARDER CONTROL

VALVE GP-RETARDER CONTROL

8P7703 VALVE GP-RETARDER CONTROL
PART OF 8D9040 LINES-RETARDER
AN ATTACHMENT

c226113 SEBP1266

8P7703 VALVE GP-RETARDER CONTROL Parts scheme

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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	6P-8600	[1]	COVER
2.	9G-0041 C	[1]	DIAPHRAGM
3.	1S-5646	[1]	SPRING
4.	7D-4637	[1]	COVER
5.	9S-4684	[1]	PLUG
	3J-1907	[1]	SEAL
6.	9H-2367	[1]	SPRING
7.	1S-2121	[1]	PLUNGER
8.	0S-1571	[4]	BOLT
9.	5S-4498	[1]	SLUG
10.	6P-4638	[1]	SPOOL
11.	8P-7702	[1]	BODY
12.	2S-6547	[1]	STOP
13.	2S-6538	[1]	SPRING
14.	9M-7539	[1]	SEAL
15.	6P-8601	[1]	STUD
16.	5K-0419	[1]	BOLT
17.	7H-3171 C	[1]	PLUG
18.	8L-6565	[1]	PIN
19.	3B-4506	[8]	LOCKWASHER
20.	0S-1588	[4]	BOLT
	C		INDICATES CHANGE

#SEBP12660334

8D-6050: PUMP GP-GEAR

PUMP GP-GEAR

8D6050 PUMP GP-GEAR
FLYWHEEL SCAVENGE
2P9313-PAGE 137

c623558 SEBP1266

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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8T-2502	[3]	BOLT (3/8-16X1.125IN)
2.	8T-4896	[4]	WASHER-HARD (2.5MM THK)
3.	5D-0353	[1]	BOLT-LOCKING (3/8-16X1IN)
4.	8D-4400	[1]	GEAR (27 TEETH)
	1B-8702	[1]	KEY-WOODRUFF
5.	2N-8611	[1]	RING-RETAINING
6.	8D-4408	[1]	WASHER-THRUST
7.	5H-6734	[1]	SEAL-O-RING (113.89MM ID)
8.	2P-9313 Y	[1]	PUMP GP-GEAR
	Y		SEPARATE ILLUSTRATION

#SEBP12660335

6G-4499: RETARDER AR

RETARDER AR

6G4499 RETARDER AR
FACTORY INSTALLATION
AN ATTACHMENT

SEBP12660335 SEBP1266

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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS

Part No	Qty	Parts name


8D-9040 Y	[1]	LINES GP-RETARDER

4N-2856 Y	[1]	COOLER GP-BRAKE OIL

7N-3282 Y	[1]	LINES GP-WATER

8N-6314 Y	[1]	RADIATOR GP

2P-9305 Y	[1]	RETARDER GP (WITH HOUSING)
Y		SEPARATE ILLUSTRATION

#SEBP12660336

2P-9305: RETARDER GP

RETARDER GP

2P9305 RETARDER GP (WITH HOUSING)
TYPE 1
PART OF 6G4499 RETARDER AR
AN ATTACHMENT

c228161 SEBP1266

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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9S-4191	[1]	PLUG
	3J-1907	[1]	SEAL
2.	9S-8008	[1]	PLUG
	3D-2824	[1]	SEAL
3.	4F-5192	[1]	BOLT
	3K-6113 C	[1]	WASHER
4.	2P-9341	[1]	HOUSING ASSEM.
			(Includes)
	1F-1006	[1]	DOWEL
5.	9F-7104	[1]	RING
6.	7S-8669	[1]	CARRIER
7.	8P-5827 C	[1]	RACE
8.	2P-9181	[1]	ROTOR
9.	1A-2029	[12]	BOLT
10.	2P-9211	[1]	STATOR
11.	3B-1915	[4]	BOLT
	5M-2894	[4]	WASHER
12.	9P-6589 C	[1]	RACE
13.	2S-6498	[3]	RING
14.	7S-8672	[1]	CARRIER
	C		INDICATES CHANGE

#SEBP12660337

2P-9305: RETARDER GP

RETARDER GP

2P9305 RETARDER GP (WITH HOUSING)
TYPE 2
PART OF 6G4499 RETARDER AR
AN ATTACHMENT

c582591 SEBP1266

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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9S-4191	[2]	PLUG-O-RING
	3J-1907	[2]	SEAL-O-RING
2.	9S-8008	[1]	PLUG-O-RING
	3D-2824	[1]	SEAL-O-RING
3.	7X-0314	[1]	BOLT
	7X-0561	[1]	WASHER-HARD
4.	7T-7706 C	[1]	HOUSING AS
	1F-1006	[1]	DOWEL
5.	9F-7104	[1]	RING-RETAINING
6.	7S-8669	[1]	CARRIER-RING
7.	5T-9430 C	[1]	RACE-SEAL RING
8.	2P-9181	[1]	ROTOR-RETARDER
9.	1A-2029	[12]	BOLT
10.	2P-9211	[1]	STATOR-RETARDER
11.	3B-1915	[4]	BOLT
	5M-2894	[4]	WASHER
12.	9P-6589	[1]	RACE-SEAL RING
13.	2S-6498	[3]	RING-SEAL
14.	7S-8672	[1]	CARRIER-RING
	C		CHANGE FROM PREVIOUS TYPE

#SEBP12660338

8D-5059: DIFFERENTIAL GP

DIFFERENTIAL GP

8D5059 DIFFERENTIAL GP
PART OF 8D5060 DIFFERENTIAL & BEVEL GEAR

c671790 SEBP1266

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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9D-2706	[8]	BOLT
	2K-0337	[8]	LOCKNUT
	5P-8248	[8]	WASHER-HARD
2.	118-7805	[4]	PINION-BEVEL
3.	3D-6509	[8]	DOWEL
4.	8D-4027	[1]	HOUSING-DIFFERENTIAL
5.	8D-4026 C	[1]	HOUSING-DIFFERENTIAL
6.	118-7804	[2]	GEAR-BEVEL
7.	5D-5532	[2]	WASHER-THRUST
8.	5D-5498	[4]	BEARING-SLEEVE
9.	5D-9675	[1]	SPIDER
10.	5D-5533	[4]	WASHER-THRUST
	C		CHANGE FROM PREVIOUS TYPE

#SEBP12660339

2P-9313: PUMP GP-GEAR

PUMP GP-GEAR

2P9313 PUMP GP-GEAR
SINGLE SECTION
PART OF 8D6050 PUMP-GEAR

c201263 SEBP1266

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Parts for your 621B WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	2P-9304	[1]	COVER ASSEM.
			(Includes)
2.	8S-0922	[2]	BEARING
3.	2P-9331	[1]	MANIFOLD ASSEM.
			(Includes)
4.	8M-8489	[2]	DOWEL
5.	8S-0922	[2]	BEARING
6.	7S-3029	[1]	SEAL
7.	4M-0189	[1]	SEAL
8.	5S-1599	[1]	GEAR ASSEM. (10 teeth)
9.	2P-9332	[1]	GEAR ASSEM. (10 teeth)
10.	1T-0720	[4]	BOLT
	3S-0004	[4]	WASHER