3G839 OIL FILTER GROUP Serial No. 50W1 to 717, 722 to 725 and 756 to 50W772 inclusive. Part of 1V4916 and 1V4968 Lines Groups shown on Pages 164 and 227 988B

HYDRAULIC SYSTEM

FILTER GP

0. 3G-0839 FILTER GP-
1. 3G-0839 FILTER GP-
2. 3G-0839 FILTER GP-

STEERING SYSTEM

STEERING GP

3. 2V-6505 STEERING A

LINES GP

4. 1V-4856 LINES GP-S
5. 1V-4856 LINES GP-S
6. 1V-4856 LINES GP-S
7. 1V-4856 LINES GP-S

VALVE GP

8. 8J-6099 VALVE GP-D

BRAKING SYSTEM

PUMP GP

9. 8J-2611 GEAR PUMP
0. INFORMATION

WHEEL LOADER 988B WHEEL LOADER 50W
988B WHEEL LOADER 50W00001-06040 (MACHINE) POWERED BY 3408 ENGINE SEBP1079 988B 50W (1976)

HYDRAULIC SYSTEM

FILTER GP

3G-0839 FILTER GP-HYDRAULIC OIL

3G-7232 BYPASS GP-FILTER

6P-4603 FILTER GP-TRANSMISSION

#SEBP10790550

3G-0839: FILTER GP-HYDRAULIC OIL

FILTER GP-HYDRAULIC OIL

3G839 OIL FILTER GROUP
Serial No. 50W1 to 717, 722 to 725 and 756 to 50W772 inclusive. Part of 1V4916
and 1V4968 Lines Groups shown on Pages 164 and 227

c209691 SEBP1079

3G0839 FILTER GP-HYDRAULIC OIL Parts scheme

For full view, you need register

Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	6J-8877	[1]	BOLT
2.	9S-1366	[6]	BOLT
	3H-7654	[6]	WASHER
3.	3K-6696	[1]	SPRING
4.	6J-8876	[1]	WASHER
5.	6J-2672	[1]	COVER
6.	6H-3977	[1]	SEAL
	1S-0668	[1]	RING
7.	3G-0822	[1]	HOUSING
8.	7J-2656	[1]	SCREEN GROUP
9.	9S-8004	[1]	PLUG
	3J-1907	[1]	SEAL
10.	9S-8008	[1]	PLUG
	3D-2824	[1]	SEAL

#SEBP10790551

3G-0839: FILTER GP-HYDRAULIC OIL

FILTER GP-HYDRAULIC OIL

3G839 OIL FILTER GROUP
Serial No. 50W718 to 50W721, 50W726 to 50W755 and 50W773 to 50W872 inclusive
Part of 1V4916 and 1V4968 Lines Groups shown on Pages 164 and 227

c164331 SEBP1079

For full view, you need register

Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	2S-4078 C	[1]	SEAL
2.	9S-1366	[6]	BOLT
	3H-7654	[6]	WASHER
3.	9S-8010 C	[1]	PLUG
4.	3G-3281 C	[1]	GASKET
5.	8J-5994 C	[1]	COVER
6.	6H-3977	[1]	SEAL
	1S-0668	[1]	RING
7.	3G-0822	[1]	HOUSING
8.	7J-2656	[1]	SCREEN GROUP
9.	9S-8004	[1]	PLUG
	3J-1907	[1]	SEAL
10.	9S-8008	[1]	PLUG
	3D-2824	[1]	SEAL
	C		INDICATES CHANGE

#SEBP10790552

3G-0839: FILTER GP-HYDRAULIC OIL

FILTER GP-HYDRAULIC OIL

3G839 OIL FILTER GROUP
Serial No. 50W837-Up. Part of 1V4916 and 1V4968 Lines Groups shown on
Pages 164, 166A, 227 and 227B

c211550 SEBP1079

For full view, you need register

Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	2S-4078 C	[2]	SEAL
2.	9S-1366	[6]	BOLT
	3H-7654	[6]	WASHER
3.	9S-8010 C	[2]	PLUG
4.	3G-3281	[1]	GASKET
5.	8J-5994	[1]	COVER
6.	6H-3977	[1]	SEAL
	1S-0668	[1]	RING
7.	3G-4106 C	[1]	HOUSING
8.	7J-2656	[1]	SCREEN GROUP
9.	9S-8004	[1]	PLUG
	3J-1907	[1]	SEAL
	C		INDICATES CHANGE

#SEBP10790553

2V-6505: STEERING AR-SUPPLEMENTAL

STEERING AR-SUPPLEMENTAL

2V6505 SUPPLEMENTAL STEERING ARRANGEMENT
AN ATTACHMENT

SEBP10790553 SEBP1079

For full view, you need register

Parts for your 988B WHEEL LOADER:

Part No	Qty	Parts name
8J-2611 Y	[1]	GEAR PUMP GROUP
		- OR -
3G-6856 Y	[1]	GEAR PUMP GROUP
8J-6099 Y	[1]	DIVERTER VALVE GROUP
1V-4856 Y	[1]	SUPPLEMENTAL STEERING LINES GROUP
Y		SEPARATE ILLUSTRATION

#SEBP10790554

1V-4856: LINES GP-SUPPLEMENTAL STEERING

LINES GP-SUPPLEMENTAL STEERING

1V4856 SUPPLEMENTAL STEERING LINES GROUP--Side View--Type 1 Part 1 of 2
Part of 2V6505 Supplemental Steering Arrangement listed on Page 167
AN ATTACHMENT

c179002 SEBP1079

1V4856 LINES GP-SUPPLEMENTAL STEERING Parts scheme

For full view, you need register

Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	1A-1460	[8]	BOLT
2.	3B-4508	[16]	LOCKWASHER
3.	1P-3707	[4]	SEAL
4.	2V-2613	[1]	TUBE ASSEM.
5.	4J-0524	[3]	SEAL
6.	4K-5175	[2]	BOLT
	1Y-7945	[2]	STUD
	1D-4719	[2]	NUT
7.	0S-1571	[2]	BOLT
8.	4B-4278	[5]	WASHER
9.	2V-2988	[1]	HOSE ASSEM.
			(Includes)
	8S-9348 CH		HOSE 57.48 in.(146 cm)
	8S-8957	[1]	STEM ASSEM. (67.5 degrees)
10.	7S-1074	[1]	STEM ASSEM. (straight)
11.	3S-7116 C	[2]	SLEEVE
12.	4J-0522	[1]	SEAL
13.	0S-1587	[14]	BOLT
14.	4B-4280	[8]	WASHER
15.	1P-4579	[2]	FLANGE
16.	0S-1594	[1]	BOLT
17.	2V-2423	[1]	CLAMP
18.	1P-4582	[2]	FLANGE
19.	2V-2421	[1]	BRACKET ASSEM.
			(Includes)
20.	9F-2978	[1]	NUT
21.	0S-0509	[2]	BOLT
22.	1V-9415	[1]	TUBE ASSEM.
23.	1P-3705	[1]	SEAL
24.	1P-5762	[2]	FLANGE
25.	0S-1585	[1]	BOLT
	5P-1076	[1]	WASHER
26.	9K-2522	[2]	CLAMP
27.	2V-7709	[1]	TUBE ASSEM.
28.	2V-2979 C	[1]	HOSE ASSEM.
			(Includes)
	8S-8220 H		HOSE 55.91 in.(142 cm)
	5P-3229	[1]	STEM ASSEM. (45 degrees)
29.	3S-8330	[2]	SLEEVE
30.	3S-9327	[1]	STEM ASSEM. (22.5 degrees)
31.	2V-7708	[1]	TUBE ASSEM.
32.	0L-1329	[2]	BOLT
33.	1V-9414	[1]	TUBE ASSEM.
34.	4J-0527	[1]	SEAL
	C		INDICATES CHANGE
	H		ORDER BY THE INCH

#SEBP10790555

1V-4856: LINES GP-SUPPLEMENTAL STEERING

LINES GP-SUPPLEMENTAL STEERING

1V4856 SUPPLEMENTAL STEERING LINES GROUP--Top View--Type 1--Part 2 of 2
Part of 2V6505 Supplemental Steering Arrangement listed on Page 167
AN ATTACHMENT

c179003 SEBP1079

For full view, you need register

Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	2V-2986	[1]	HOSE ASSEM.
			(Includes)
	8S-8220 CH		HOSE 18.5 in.(47 cm)
2.	7S-9370	[1]	STEM ASSEM. (straight)
3.	7S-8439	[1]	STEM ASSEM (90 degrees)
4.	3S-8330	[2]	SLEEVE
5.	4J-0527	[1]	SEAL
6.	7L-6326	[1]	CLIP
7.	1A-2029	[1]	BOLT
	1D-4717	[1]	NUT
	5P-1075	[2]	WASHER
8.	2V-2905	[1]	TUBE ASSEM.
			(Includes)
9.	9S-4181	[1]	PLUG
	7M-8485	[1]	SEAL
10.	1N-5998	[2]	PLUG
	1N-6002	[1]	SEAL
11.	0S-1585	[4]	BOLT
12.	4J-0524	[5]	SEAL
13.	9J-4132	[1]	SWITCH ASSEM. (flow)
	3K-0360	[1]	SEAL
14.	3V-2661 C	[1]	HOSE ASSEM.
			(Includes)
	8S-8220 H		HOSE 11.81 in.(30 cm)
15.	3S-9330	[1]	STEM ASSEM. (60 degrees)
16.	3S-9331	[1]	STEM ASSEM. (67.5 degrees)
17.	3S-8330	[2]	SLEEVE
18.	3V-0839	[1]	ELBOW
	1P-3707	[1]	SEAL
19.	1P-4579	[8]	FLANGE
20.	0S-1587	[16]	BOLT
	4B-4280	[16]	WASHER
21.	3V-2660	[1]	HOSE ASSEM.
			(Includes)
	8S-8220 H		HOSE 17.32 in.(44 cm)
22.	3S-9329	[1]	STEM ASSEM. (45 degrees)
23.	3S-9331	[1]	STEM ASSEM. (67.5 degrees)
24.	3S-8330	[2]	SLEEVE
25.	1A-7669	[3]	BOLT
	1D-4719	[3]	NUT
	2M-0849	[6]	WASHER
26.	1A-1460	[2]	BOLT
27.	2V-2599	[1]	BRACKET
28.	1P-4582	[2]	FLANGE
29.	3B-1915 C	[2]	BOLT
30.	3V-7886 C	[1]	PLATE
31.	5F-3106	[1]	SEAL
32.	1D-4566	[4]	BOLT
	3B-4508	[4]	LOCKWASHER
	C		INDICATES CHANGE
	H		ORDER BY THE INCH

#SEBP10790556

1V-4856: LINES GP-SUPPLEMENTAL STEERING

LINES GP-SUPPLEMENTAL STEERING

1V4856 SUPPLEMENTAL STEERING LINES GROUP--Side View--Type 2--Part 1 of 2
Part of 2V6505 Supplemental Steering Arrangement listed on Page 167
AN ATTACHMENT

c179004 SEBP1079

For full view, you need register

Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	0S-1587 C	[24]	BOLT
2.	3B-4508 C	[4]	LOCKWASHER
3.	1P-3707	[4]	SEAL
4.	4V-7055 C	[1]	TUBE ASSEM.
5.	4J-0524	[3]	SEAL
6.	8M-2530 C	[4]	BOLT
7.	1V-9414	[1]	TUBE ASSEM.
8.	4B-4278 C	[3]	WASHER
9.	2V-2988	[1]	HOSE ASSEM.
			(Includes)
	8S-9348 CH		HOSE 57.48 in.(146 cm)
	8S-8957	[1]	STEM ASSEM. (67.5 degrees)
10.	7S-1074	[1]	STEM ASSEM. (straight)
11.	3S-7116	[2]	SLEEVE
12.	4J-0522	[1]	SEAL
13.	4J-0527	[1]	SEAL
14.	5P-8245 C	[10]	WASHER
15.	1P-4579	[2]	FLANGE
16.	0S-1594	[1]	BOLT
17.	2V-2423	[1]	CLAMP
18.	1P-4582	[2]	FLANGE
19.	2V-2421	[1]	BRACKET ASSEM.
			(Includes)
20.	9F-2978	[1]	NUT
21.	0S-0509	[2]	BOLT
22.	1V-9415	[1]	TUBE ASSEM.
23.	1P-3705	[1]	SEAL
24.	1P-5762	[2]	FLANGE
25.	0S-1585	[1]	BOLT
	5P-1076	[1]	WASHER
26.	9K-2522	[2]	CLAMP
27.	2V-7709	[1]	TUBE ASSEM.
28.	2V-2979 C	[1]	HOSE ASSEM.
			(Includes)
	8S-8220 H		HOSE 55.91 in.(142 cm)
	5P-3229	[1]	STEM ASSEM. (45 degrees)
29.	3S-8330	[2]	SLEEVE
30.	3S-9327	[1]	STEM ASSEM. (22.5 degrees)
31.	2V-7708	[1]	TUBE ASSEM.
32.	0L-1329	[2]	BOLT
	C		INDICATES CHANGE
	H		ORDER BY THE INCH

#SEBP10790557

1V-4856: LINES GP-SUPPLEMENTAL STEERING

LINES GP-SUPPLEMENTAL STEERING

1V4856 SUPPLEMENTAL STEERING LINES GROUP--Top View--Type 2--Part 2 of 2
Part of 2V6505 Supplemental Steering Arrangement listed on Page 167
AN ATTACHMENT

c179005 SEBP1079

For full view, you need register

Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	2V-2986	[1]	HOSE ASSEM.
			(Includes)
	8S-8220 CG		HOSE 18.5 in.(47 cm)
2.	7S-9370	[1]	STEM ASSEM. (straight)
3.	7S-8439	[1]	STEM ASSEM. (90 degrees)
4.	3S-8330	[2]	SLEEVE
5.	4J-0527	[1]	SEAL
6.	0S-1595 C	[2]	BOLT
7.	5P-1076 C	[2]	WASHER
8.	4V-7056 C	[1]	TUBE ASSEM.
			(Includes)
9.	9S-4181	[1]	PLUG
	7M-8485	[1]	SEAL
10.	1N-5998	[2]	PLUG
	1N-6002	[1]	SEAL
11.	8M-2530 C	[4]	BOLT
12.	4J-0524 C	[6]	SEAL
13.	9J-4132	[1]	SWITCH ASSEM. (flow)
	3K-0360	[1]	SEAL
14.	1D-4719 C	[3]	NUT
15.	3H-7654 C	[6]	WASHER
16.	5F-3106	[1]	SEAL
17.	1D-4566	[4]	BOLT
	3B-4508	[4]	LOCKWASHER
18.	3V-0839	[1]	ELBOW
19.	1P-4579	[8]	FLANGE
20.	0S-1587	[16]	BOLT
	5P-8245 C	[16]	WASHER
21.	3V-2660 C	[1]	HOSE ASSEM.
			(Includes)
	8S-8220 G		HOSE 17.32 in.(44 cm)
22.	3S-9329	[1]	STEM ASSEM. (45 degrees)
23.	3S-8330	[2]	SLEEVE
24.	3S-9331	[1]	STEM ASSEM. (67.5 degrees)
25.	1A-7669 C	[2]	BOLT
26.	1A-1460 C	[2]	BOLT
27.	4V-7024 C	[1]	BRACKET
28.	1P-4582	[2]	FLANGE
29.	2A-1531 C	[1]	BOLT
30.	3V-2661 C	[1]	HOSE ASSEM.
			(Includes)
	8S-8220 G		HOSE 11.81 in.(30 cm)
31.	3S-9330	[1]	STEM ASSEM. (60 degrees)
32.	3S-8330	[2]	SLEEVE
33.	3S-9331	[1]	STEM ASSEM. (67.5 degrees)
	C		INDICATES CHANGE
	G		ORDER BY THE INCH

#SEBP10790558

8J-6099: VALVE GP-DIVERTER

VALVE GP-DIVERTER

8J6099 DIVERTER VALVE GROUP
Part of 2V6505 Supplemental Steering Arrangement listed on Page 167
8J6790 Valve Parts are shown on Page 171
AN ATTACHMENT

c210156 SEBP1079

For full view, you need register

Parts for your 988B WHEEL LOADER:

Pos.	Part No	Qty	Parts name
1.	8J-6790 Y	[1]	VALVE GROUP
			(Separate Illustration)
2.	1J-8945	[2]	VALVE
3.	0S-1587	[7]	BOLT
4.	3B-4508	[8]	LOCKWASHER
5.	1J-9533	[2]	SPRING
6.	4J-0525	[3]	SEAL
7.	1B-2886	[1]	BOLT
8.	8J-6784	[1]	COVER
	4J-8997	[1]	SEAL
9.	3S-3433	[4]	SLEEVE
10.	8J-6785	[1]	SPRING
11.	4J-0528	[1]	SEAL
12.	8J-6783	[1]	PLATE
	7B-3028	[1]	SCREW
13.	1P-4579	[6]	FLANGE
14.	4J-0524	[4]	SEAL
15.	0S-1585	[8]	BOLT
16.	4B-4280	[12]	WASHER
17.	068-2121	[4]	BOLT
18.	8J-6782	[1]	COVER
	Y		SEPARATE ILLUSTRATION