Komatsu SAA6D125E-5-FR Fuel System Parts Hub

Komatsu SAA6D125E-5-FR Fuel System Parts is a focused 19PARTS hub for buyers working inside a specific Komatsu engine model and repair system. It is meant to reduce guesswork by tying engine-model navigation to related product listings and part-number references.

Diagram callout lookup for Komatsu SAA6D125E-5-FR Fuel System Parts

Use each diagram together with the table directly below it. The Diagram Ref. column corresponds to the location number shown on that specific image. Clickable part numbers link to matching 19PARTS product pages where a product match exists.

SAA6D125E-5-FR — 2) (#660001-)

Komatsu SAA6D125E-5-FR Fuel System Parts diagram ENGINES/0000180c/d009001a.png
ENGINES/0000180c/d009001a.png · 26 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 01435-01030 Bolt 2 SN: 660001-UP
11 07206-30710 Bolt, Joint 1 SN: 660001-UP
12 07005-01012 Seal, Washer 2 SN: 660001-UP, KIT-FLAG: S
14 01435-01020 Bolt 1 SN: 660001-UP
15 01643-31032 Washer 1 SN: 660001-UP
16 6251-71-5110 Tube, Fuel Supply, No.1 1 SN: 660001-660001, SCC: B1
16 6251-71-5111 Tube 1 SN: 660001-660139, SCC: A2
16 6251-71-5112 Tube 1 SN: 660140-UP
17 6251-71-5120 Tube, Fuel Supply, No.2 1 SN: 660001-660001, SCC: B1
17 6251-71-5121 Tube 1 SN: 660001-660139, SCC: A2
17 6251-71-5122 Tube 1 SN: 660140-UP
18 6251-71-5130 Tube, Fuel Supply, No.3 1 SN: 660001-660001, SCC: B1
18 6251-71-5131 Tube 1 SN: 660001-660139, SCC: A2
18 6251-71-5132 Tube 1 SN: 660140-UP
19 6251-71-5140 Tube, Fuel Supply, No.4 1 SN: 660001-660001, SCC: B1
19 6251-71-5141 Tube 1 SN: 660001-660139, SCC: A2
19 6251-71-5142 Tube 1 SN: 660140-UP
20 6251-71-5150 Tube, Fuel Supply, No.5 1 SN: 660001-660001, SCC: B1
20 6251-71-5151 Tube 1 SN: 660001-660139, SCC: A2
20 6251-71-5152 Tube 1 SN: 660140-UP
21 6251-71-5160 Tube, Fuel Supply, No.6 1 SN: 660001-660001, SCC: B1
21 6251-71-5161 Tube 1 SN: 660001-660139, SCC: A2
21 6251-71-5162 Tube 1 SN: 660140-UP
26 01435-00635 Bolt 7 SN: 660001-UP
31 01435-01020 Bolt 2 SN: 660001-UP
33 01435-01025 Bolt 1 SN: 660001-UP

SAA6D125E-5-FR — 2) (#660139-)

Komatsu SAA6D125E-5-FR Fuel System Parts diagram ENGINES/0000180c/d015001a.png
ENGINES/0000180c/d015001a.png · 24 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
7 07040-11209 Plug 1 SN: 660139-UP
8 07005-01212 Seal, Washer 1 SN: 660139-UP, KIT-FLAG: S
10 07005-00812 Seal, Washer 1 SN: 660139-UP, KIT-FLAG: S
11 01435-01030 Bolt 2 SN: 660139-UP
13 600-319-4500 Cartridge Assembly 1 SN: 660139-UP
14 600-311-3220 Cap 1 SN: 660139-UP
15 600-311-3230 Seal 1 SN: 660139-UP
22 6251-51-9910 O-Ring 2 SN: 660139-UP, KIT-FLAG: S
23 02896-11009 O-Ring 2 SN: 660139-UP, KIT-FLAG: S
25 07002-12034 O-Ring 1 SN: 660139-UP, KIT-FLAG: S
29 07002-12034 O-Ring 2 SN: 660139-UP, KIT-FLAG: S
30 02896-11015 O-Ring 2 SN: 660139-UP, KIT-FLAG: S
32 01435-01020 Bolt 1 SN: 660139-UP
36 07095-20523 Cushion 2 SN: 660139-UP
37 01435-01020 Bolt 2 SN: 660139-UP
38 01584-01008 Nut 2 SN: 660139-UP
41 07002-12034 O-Ring 1 SN: 660139-UP, KIT-FLAG: S
42 02896-11012 O-Ring 1 SN: 660139-UP, KIT-FLAG: S
43 04434-52511 Clip 1 SN: 660139-UP
47 01584-01008 Nut 1 SN: 660139-UP
49 01435-01020 Bolt 1 SN: 660139-UP
51 01435-01025 Bolt 1 SN: 660139-UP
52 01584-01008 Nut 1 SN: 660139-UP
53 01643-31032 Washer 1 SN: 660139-UP

SAA6D125E-5-FR — Fuel Return (#660001-)

Komatsu SAA6D125E-5-FR Fuel System Parts diagram ENGINES/0000180c/d010001a.png
ENGINES/0000180c/d010001a.png · 12 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 6215-11-6560 Bolt, Joint 1 SN: 660001-UP
3 07005-01012 Seal, Washer 2 SN: 660001-UP, KIT-FLAG: S
5 07005-01412 Seal, Washer 2 SN: 660001-UP
7 01435-01030 Bolt 2 SN: 660001-UP
8 6216-84-9740 Seal 1 SN: 660010-UP, KIT-FLAG: S
8 6261-81-6900 Sensor Assembly 1 SN: 660001-660009
8 6261-81-6901 Sensor Assembly 1 SN: 660010-UP
8 6261-81-6910 Sensor, Temperature 1 SN: 660001-660009
8 6261-84-9740 O-Ring 1 SN: 660001-660009, KIT-FLAG: S
10 01435-01030 Bolt 1 SN: 660001-UP
11 01643-31032 Washer 2 SN: 660001-UP
13 6251-51-9910 O-Ring 1 SN: 660001-UP, KIT-FLAG: S

SAA6D125E-5-FR — Fuel Filter, Piping (#660001-660138)

Komatsu SAA6D125E-5-FR Fuel System Parts diagram ENGINES/0000180c/d013001a.png
ENGINES/0000180c/d013001a.png · 20 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 07043-70108 Plug 1 SN: 660001-660138
15 07040-11209 Plug 1 SN: 660001-660138
16 07005-01212 Seal, Washer 1 SN: 660001-660138, KIT-FLAG: S
17 01435-01030 Bolt 2 SN: 660001-660138
22 07005-01412 Seal, Washer 2 SN: 660001-660138
26 04020-00616 Pin, Dowel 1 SN: 660001-660138
30 07005-01412 Seal, Washer 5 SN: 660001-660138
33 07005-01412 Seal, Washer 4 SN: 660001-660138
37 01435-01025 Bolt 1 SN: 660001-660138
38 01584-01008 Nut 1 SN: 660001-660138
39 01643-31032 Washer 1 SN: 660001-660138
43 07005-01412 Seal, Washer 3 SN: 660001-660138
45 01435-01025 Bolt 1 SN: 660001-660138
47 01435-01020 Bolt 1 SN: 660001-660138
52 01435-01030 Bolt 1 SN: 660001-660138
54 01435-01025 Bolt 1 SN: 660001-660138
55 01584-01008 Nut 1 SN: 660001-660138
56 01643-31032 Washer 1 SN: 660001-660138
62 01584-01008 Nut 1 SN: 660001-660138
63 01643-31032 Washer 1 SN: 660001-660138

SAA6D125E-5-FR — Fuel Filter, Priming Pump (#660001-660138)

Komatsu SAA6D125E-5-FR Fuel System Parts diagram ENGINES/0000180c/d013002a.png
ENGINES/0000180c/d013002a.png · 16 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
1 6210-21-1390 Pin 2 SN: 660001-660138
2 01435-01025 Bolt 4 SN: 660001-660138
11 07002-12034 O-Ring 1 SN: 660001-660138, KIT-FLAG: S
12 07040-12012 Plug 1 SN: 660001-660138
13 07002-12034 O-Ring 1 SN: 660001-660138, KIT-FLAG: S
16 07002-12034 O-Ring 1 SN: 660001-660138, KIT-FLAG: S
17 07206-30812 Bolt, Joint 2 SN: 660001-660138
18 07005-01212 Seal, Washer 4 SN: 660001-660138, KIT-FLAG: S
20 07206-30812 Bolt, Joint 1 SN: 660001-660138
21 07005-01212 Seal, Washer 2 SN: 660001-660138, KIT-FLAG: S
24 07002-12034 O-Ring 1 SN: 660001-660138, KIT-FLAG: S
25 02896-11012 O-Ring 1 SN: 660001-660138, KIT-FLAG: S
28 07005-01412 Seal, Washer 3 SN: 660001-660138
30 07005-01412 Seal, Washer 1 SN: 660001-660138
39 01435-01020 Bolt 1 SN: 660001-660138
40 01643-31032 Washer 1 SN: 660001-660138

SAA6D125E-5-FR — Fuel Injector (#660001-)

Komatsu SAA6D125E-5-FR Fuel System Parts diagram ENGINES/0000180c/d006001a.png
ENGINES/0000180c/d006001a.png · 8 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
1 6251-11-3100 Injector Assembly 6 SN: 660001-UP
2 6217-71-6112 Gasket 6 SN: 660001-UP, KIT-FLAG: S
3 6219-71-1150 O-Ring 12 SN: 660001-UP, KIT-FLAG: S
4 6219-71-1160 O-Ring 6 SN: 660001-UP, KIT-FLAG: S
9 6934-72-7190 Bolt, Joint 5 SN: 660001-UP
10 07005-01012 Seal, Washer 11 SN: 660001-UP, KIT-FLAG: S
12 07000-E3024 O-Ring 6 SN: 660001-UP, KIT-FLAG: S
14 01640-20610 Washer 6 SN: 660001-UP

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SAA6D125E-5-FR Fuel System Parts lookup notes

Use this hub when the repair has already been narrowed to fuel system parts. Confirm each part against the engine serial range, parts-book callout, quantity, and option notes before ordering.

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Parts-book verification before ordering

Komatsu engine parts often change by engine arrangement, serial range, diagram callout, and option note. 19PARTS uses engine-model organization to help you move from a broad Komatsu part number search into a tighter reference path, but final fitment should always be confirmed against your engine serial number and parts book.

Our Keep Ops Moving approach is simple: give buyers cleaner lookup paths, clear part-number references, and practical cross-navigation so rebuild shops, fleet teams, mechanics, and equipment owners can identify the right components faster.