5R6706 ENGINE ARRANGEMENT-Part 1 of 2 NOTE: WHEN ORDERING PARTS GIVE ENGINE ARRANGEMENT 621 WHEEL TRACTOR

Part No	Qty	Parts name
6N-4992 Y	[1]	CAMSHAFT GROUP
7N-3516 Y	[6]	CONNECTING ROD AND PISTON GROUP
2W-1732 Y	[1]	CRANKSHAFT GROUP
9N-0684 Y	[1]	CYLINDER BLOCK COVER GROUP
4N-2257 RY	[1]	CYLINDER BLOCK GROUP
4N-2270 RY	[1]	CYLINDER HEAD GROUP
4N-0744 Y	[1]	LIFTING EYE GROUP
4N-4953 Y	[1]	VALVE MECHANISM COVER GROUP
4N-2271 Y	[1]	VALVE MECHANISM GROUP
4N-2264 Y	[1]	FRONT ACCESSORY DRIVE GROUP
4N-2274 Y	[1]	FRONT TIMING GEAR GROUP
4N-4965 Y	[1]	FRONT HOUSING COVER GROUP
4N-6006 Y	[1]	FRONT HOUSING FASTENER GROUP
4N-3911 Y	[1]	FRONT HOUSING GROUP
4N-1560 Y	[1]	RUBBER DAMPER GROUP
4N-2276 Y	[1]	SUPPORT GROUP
4N-2273 Y	[1]	TRUNNION GROUP
7N-9651 Y	[1]	FLYWHEEL GROUP
4N-4792 Y	[1]	FLYWHEEL HOUSING COVER GROUP
8N-5941 Y	[1]	FLYWHEEL HOUSING GROUP
4N-0771 Y	[1]	OIL PAN GROUP
R		REMFG PART MAY BE AVAILABLE
Y		SEPARATE ILLUSTRATION

#SEBP24290002

5R-6706: ENGINE ARRANGEMENT

ENGINE ARRANGEMENT

5R6706 ENGINE ARRANGEMENT-Part 2 of 2
NOTE: WHEN ORDERING PARTS GIVE ENGINE ARRANGEMENT

SEBP24290002 SEBP2429

For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS

Part No	Qty	Parts name
2N-8220 Y	[1]	BREATHER GROUP
4N-2738 Y	[1]	FUMES DISPOSAL GROUP
4N-8121 Y	[1]	OIL FILLER GROUP
4N-8812 Y	[1]	OIL LEVEL GAUGE GROUP
4N-8733 Y	[1]	OIL LINES GROUP
4N-0733 RY	[1]	OIL PUMP GROUP
4N-2481 Y	[1]	OIL PUMP MOUNTING FASTENER GROUP
4N-0729 Y	[1]	OIL COOLER GROUP
4N-1641 Y	[1]	WATER LINES GROUP
9N-3288 Y	[1]	WATER PUMP GROUP
4N-9010 Y	[1]	AFTERCOOLER GROUP
4N-2474 Y	[1]	AFTERCOOLER WATER LINES GROUP
7N-6294 Y	[1]	AIR COMPRESSOR GROUP
8N-6024 Y	[1]	AIR COMPRESSOR LINES GROUP
8N-5416 Y	[1]	AIR LINES GROUP
9N-0022 Y	[1]	EXHAUST MANIFOLD GROUP
8N-5444 Y	[1]	TURBOCHARGER GROUP
9N-0013 Y	[1]	TURBOCHARGER OIL LINES GROUP
9N-3672 Y	[1]	FUEL INJECTION LINES GROUP
4N-1981 Y	[1]	FUEL FILTER GROUP
4N-2292 Y	[1]	FUEL FILTER LINES GROUP
9N-0792 Y	[1]	FUEL RATIO CONTROL GROUP
4N-3949 Y	[1]	FUEL TRANSFER PUMP GROUP
6N-5202 Y	[1]	GOVERNOR AND FUEL PUMP DRIVE GROUP
8N-5535 Y	[1]	GOVERNOR AND FUEL PUMP GROUP
4N-3064 Y	[1]	TACHOMETER DRIVE GROUP
R		REMFG PART MAY BE AVAILABLE
Y		SEPARATE ILLUSTRATION

#SEBP24290003

9N-0684: COVER GP-CYLINDER BLOCK

COVER GP-CYLINDER BLOCK

9N684 CYLINDER BLOCK COVER GROUP

c202822 SEBP2429

9N0684 COVER GP-CYLINDER BLOCK Parts scheme

For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	4N-0996	[2]	COVER
2.	4N-0699	[2]	GASKET
3.	0S-1594 C	[6]	BOLT
4.	4N-0790	[1]	GASKET
5.	4N-0794	[1]	COVER
6.	5M-2894 C	[6]	WASHER
	C		INDICATES CHANGE

#SEBP24290004

4N-2257: CYLINDER BLOCK GP

CYLINDER BLOCK GP

4N2257 CYLINDER BLOCK GROUP-Part 1 of 2

c939391 SEBP2429

For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	4N-1650	[2]	DOWEL
2.	7N-1199	[1]	PLATE
3.	7N-0625	[1]	GASKET
4.	8N-9266 R	[1]	CYLINDER BLOCK ASSEM.
	9L-5854	[6]	BAND
	1W-6280	[6]	LINER
	8N-9265	[1]	BLOCK
	6V-5121	[18]	SEAL
	3P-1323	[14]	BOLT
	9H-1031	[14]	WASHER
	4N-0795	[7]	CAP
5.	4N-0683	[4]	DOWEL
6.	1S-9540	[2]	DOWEL
	3S-5496	[2]	SEAL
7.	7M-7410	[1]	PLUG
	R		REMFG PART MAY BE AVAILABLE

#SEBP24290005

4N-2257: CYLINDER BLOCK GP

CYLINDER BLOCK GP

4N2257 CYLINDER BLOCK GROUP-Part 2 of 2

c939392 SEBP2429

For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9F-2247	[3]	PLUG
2.	4N-6658	[1]	BEARING
3.	7M-7410	[2]	PLUG
4.	1W-3133	[1]	COVER
5.	1W-3132	[1]	GASKET
6.	030-7571	[6]	BOLT
7.	4N-9881	[6]	TUBE ASSEM.
8.	7H-3171	[1]	PLUG
9.	2W-7041	[1]	COVER
	4N-0790	[1]	GASKET
10.	2M-6471	[2]	PLUG
11.	8S-9094	[1]	PLUG
12.	9S-4190	[2]	PLUG (use as required)
	2M-9780	[2]	O-RING (use as required)
13.	4N-0685	[6]	BEARING
14.	7H-3171	[2]	PLUG
15.	3J-5389	[1]	PLUG
16.	3J-5390	[5]	PLUG
17.	4N-9916	[6]	SCREW
18.	5M-6214	[1]	PLUG

#SEBP24290006

2W-1732: CRANKSHAFT GP

CRANKSHAFT GP

2W1732 CRANKSHAFT GROUP
2W440 Crankshaft parts are shown on Page 9

c939393 SEBP2429

For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	2W-0440 Y	[1]	CRANKSHAFT ASSEM.
2.	7N-8947	[2]	PLATE
3.	7N-1999	[2]	SEAL GROUP
			(EACH INCLUDES)
	5S-9022	[1]	SEAL
4.	4N-0848	[1]	SLEEVE
5.	1W-6589	[7]	BEARING
	Y		SEPARATE ILLUSTRATION

#SEBP24290007

2W-0440: CRANKSHAFT AS

CRANKSHAFT AS

2W440 CRANKSHAFT ASSEMBLY
Part of 2W1732 Crankshaft Group shown on Page 8

c939394 SEBP2429

For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	4N-0684	[1]	PIN
2.	9F-2247	[6]	PLUG
3.	1W-9302	[1]	GEAR (80 TEETH)
4.	7S-5005	[1]	DOWEL

#SEBP24290008

7N-3516: PISTON & ROD GP

PISTON & ROD GP

7N3516 CONNECTING ROD AND PISTON GROUP--6 Required

c939395 SEBP2429

For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8N-1608	[1]	PIN
2.	8N-7295	[2]	RING
3.	8N-1726 R	[1]	ROD ASSEM.
			(Includes)
	8N-2018	[1]	BEARING
4.	6N-8942	[2]	BOLT
	8L-3441	[2]	NUT
5.	1W-7524	[1]	BEARING
6.	1W-9373	[1]	PISTON GROUP
			(Includes)
7.	7N-7078	[1]	RING (oil)
8.	2P-2817	[1]	RING (intermediate)
9.	1W-9460	[1]	RING (top)
	R		REMFG PART MAY BE AVAILABLE

#SEBP24290009

6N-4992: CAMSHAFT GP-SINGLE

CAMSHAFT GP-SINGLE

6N4992 CAMSHAFT GROUP
6N4991 Camshaft parts are shown on Page 12

c156158 SEBP2429

For full view, you need register

Parts for your 621 WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	0S-0509	[2]	BOLT
2.	4N-0342	[1]	PLATE
3.	6N-4991 Y	[1]	CAMSHAFT ASSEM.
			(Separate Illustration)
	Y		SEPARATE ILLUSTRATION

Information:

ENGINE ARRANGEMENT

ENGINE AR

Truck Engine News

Service Magazines, Engine News, and Truck Engine News Articles Moved from Dealer.cat.com to SISweb {0374, 1000, 7000}
2015/09/23

A New Visualization Service Procedure (VSP) is Now Used for Certain Publications {0374, 1000, 7000}
A New Visualization Service Procedure (VSP) is Now Used for Certain Publications {0374, 1000, 7000}

Changes to the Way Serial Numbers are Displayed in Truck Engine News {0374, 1000, 7000}
Changes to the Way Serial Numbers are Displayed in Truck Engine News {0374, 1000, 7000}

Engine News

Improved Registration Process for Retrofit Products {1000, 7000}
2011/04/15

Service Magazines, Engine News, and Truck Engine News Articles Moved from Dealer.cat.com to SISweb {0374, 1000, 7000}
2015/09/18

A New Visualization Service Procedure (VSP) is Now Used for Certain Publications {0374, 1000, 7000}
A New Visualization Service Procedure (VSP) is Now Used for Certain Publications {0374, 1000, 7000}

Changes to the Way Serial Numbers are Displayed in Engine News {0374, 1000, 7000}
Changes to the Way Serial Numbers are Displayed in Engine News {0374, 1000, 7000}

Special Instruction

Installation of a 3406 Engine Emissions Upgrade Group for 621B, 623B, and 627B Wheel Tractor-Scrapers{1000}
Installation of a 3406 Engine Emissions Upgrade Group for 621B, 623B, and 627B Wheel Tractor-Scrapers{1000}

Caterpillar DPF Installation and Operation Guide for Diesel Engines - California Only {1000, 1091}
Caterpillar DPF Installation and Operation Guide for Diesel Engines - California Only {1000, 1091}

Generation 3 DPFdm Diagnostic Module Installation Manual - California Only {1000, 1091, 7490}
Generation 3 DPFdm Diagnostic Module Installation Manual - California Only {1000, 1091, 7490}

Storage Procedure for Caterpillar Products {0355, 1000, 7000}
Storage Procedure for Caterpillar Products {0355, 1000, 7000}

Instructions to Register the Retrofit and Submit Service Reporting {1000, 3000, 7000, 7570}
Instructions to Register the Retrofit and Submit Service Reporting {1000, 3000, 7000, 7570}

Differences in Appearance of Cat <SUP>®</SUP> Reman Parts when Compared to New Parts {1000, 1250}
Differences in Appearance of Cat ^® Reman Parts when Compared to New Parts {1000, 1250}

Introduction to Visualization Service Procedure (VSP) {0374, 1000, 7000}
Introduction to Visualization Service Procedure (VSP) {0374, 1000, 7000}

Technical Information Bulletin

A Recommendation for Initial Parts Stock Quantities Will Now Be Included in Service Letters{1000, 7000, 7751, 7752}
A Recommendation for Initial Parts Stock Quantities Will Now Be Included in Service Letters{1000, 7000, 7751, 7752}

368-9910 Multi-Tool Group with the 368-9911 Burn Rate Group Accuracy Issue{0599, 0701, 0702, 0706, 1000, 7610, 7620}
368-9910 Multi-Tool Group with the 368-9911 Burn Rate Group Accuracy Issue{0599, 0701, 0702, 0706, 1000, 7610, 7620}

Tool Operating Manual

Using the 1U-8860 Large Engine Blowby Pickup Group and the 8T-2700 Blowby/Airflow Indicator{0781, 0785, 1000}
Using the 1U-8860 Large Engine Blowby Pickup Group and the 8T-2700 Blowby/Airflow Indicator{0781, 0785, 1000}

NEHS1111: 368-9910 Multi-Tool Group 3 {0599, 0701, 0702, 0706, 1000, 7610, 7620}
NEHS1111: 368-9910 Multi-Tool Group 3 {0599, 0701, 0702, 0706, 1000, 7610, 7620}

142-6893 Adjustable Lifting Bracket Group{0599, 0629, 0632, 0701, 0717, 1000, 4000, 7000}
142-6893 Adjustable Lifting Bracket Group{0599, 0629, 0632, 0701, 0717, 1000, 4000, 7000}

Reuse And Salvage Guidelines

HVOF Identification and Polishing (Superfinishing){0674, 0679, 1000, 7000, 7562}
HVOF Identification and Polishing (Superfinishing){0674, 0679, 1000, 7000, 7562}

Cleaning Components with Carbon Dioxide (CO<SUB>2</SUB>) {0680, 1000, 7000}
Cleaning Components with Carbon Dioxide (CO₂) {0680, 1000, 7000}

Reuse and Salvage Guidelines Subscriptions {0374, 0599, 1000, 7000}
Reuse and Salvage Guidelines Subscriptions {0374, 0599, 1000, 7000}

Fundamentals of Plasma Transferred Wire Arc (PTWA) Spray for Reconditioning Components {0374, 0599, 0679, 1000}
Fundamentals of Plasma Transferred Wire Arc (PTWA) Spray for Reconditioning Components {0374, 0599, 0679, 1000}

Contamination Control Guidelines

Proper Oil Changing Procedures {1000, 1308, 1316, 1325, 1348, 3000, 3004, 3005, 3030, 3064, 3067, 3080, 3081, 4000, 4001, 4050, 4051, 5050, 5056, 5068, 5095}
Proper Oil Changing Procedures {1000, 1308, 1316, 1325, 1348, 3000, 3004, 3005, 3030, 3064, 3067, 3080, 3081, 4000, 4001, 4050, 4051, 5050, 5056, 5068, 5095}

Technical Analysis

Technical Analysis 1 (TA1) Visual Inspection for Wheel Tractor Scraper {0372, 0374, 1000, 7000, 753S, 7565}
Technical Analysis 1 (TA1) Visual Inspection for Wheel Tractor Scraper {0372, 0374, 1000, 7000, 753S, 7565}

Service Magazine

A New Screen In The TMI System Provides The Status Of Emission Certification Of Engines {1000}
2001/01/08

A List Of Contacts For Caterpillar Product Support Is Available {1000, 4450, 7000}
2002/03/25

Engine Upgrade Kits to Reduce Emissions are Available {1000}
2007/08/13

Procedure for Crankshafts that will not Rotate after Installation during a Rebuild {1000, 1202}
2008/09/08

Proper Long Term Storage of Caterpillar Products {0355, 1000, 7000}
2009/04/27

Changes To Caterpillar Incident Reporting Field Use Form And DSN Incident Report Entry Screens {1000, 7000}
2009/11/18

Redesigned Fluid Sampling Valves Are Now Available for All Cat Products {7542}
2011/02/11

Improved Registration Process for Retrofit Products {1000, 3000, 7000, 7570}
2011/02/17

TA2 (Technical Analysis) Inspections are Now Available on SIS {0372, 1000, 7000, 753T, 7565}
2013/01/10

Service Magazines, Engine News, and Truck Engine News Articles Moved from Dealer.cat.com to SISweb {0374, 1000, 7000}
2015/09/25

A New Visualization Service Procedure (VSP) is Now Used for Certain Publications {0374, 1000, 7000}
A New Visualization Service Procedure (VSP) is Now Used for Certain Publications {0374, 1000, 7000}

Similar Product Support Literature Available For Military Machines {0374, 1000, 7000}
Similar Product Support Literature Available For Military Machines {0374, 1000, 7000}

Military Electronic Technician (Military ET) Is Now Available For Military Personnel {0374, 0376, 0599, 1000, 7000, 7610, 7620}
Military Electronic Technician (Military ET) Is Now Available For Military Personnel {0374, 0376, 0599, 1000, 7000, 7610, 7620}

Process to Print Collage Schematics {0374, 1000, 7000}
Process to Print Collage Schematics {0374, 1000, 7000}

Changes to the Way Serial Numbers are Displayed on Service Magazines {0374, 1000, 7000}
Changes to the Way Serial Numbers are Displayed on Service Magazines {0374, 1000, 7000}

A New Process Is Available to Request Service Animations for Certain Service Information Procedures {1000, 7000}
A New Process Is Available to Request Service Animations for Certain Service Information Procedures {1000, 7000}

Caterpillar Parts SIS Catalog 621 :

5R-6706 ENGINE ARRANGEMENT

9N-0684 COVER GP-CYLINDER BLOCK

4N-2257 CYLINDER BLOCK GP

2W-1732 CRANKSHAFT GP

2W-0440 CRANKSHAFT AS

7N-3516 PISTON & ROD GP

6N-4992 CAMSHAFT GP-SINGLE

Truck sale:

699,500

Caterpillar 621K WT, water trucks, Transport
- water trucks
HOLT OF CALIFORNIA

379,500

Caterpillar 621K, Road Scraper, Construction
- Road Scraper
ALTORFER INC.

826,455

Caterpillar 621K, Road Scraper, Construction

500,000

Caterpillar 621K, Road Scraper, Construction

HOLT CAT

435,000

Caterpillar 621K, Road Scraper, Construction

CAROLINA CAT