Detailed Parts List for Caterpillar RP7500E Generator

• Please note that all caterpillar portable generators were discontinued back in 2020
• Most smaller parts are part of a larger group (i.e. smaller parts may not be purchased individually)
• Parts listed in this page are for the EPA model (not the CARB model)

Table of Contents

Engine Cylinder Assembly (d)

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
3	Cover sub-assembly, cylinder head	N/A	1	501-5426	Unknown	COVER-GP-CYL-HD	TBD
4	Gasket, cylinder head cover	501-5425	1
6	Bolt	N/A	4
	—————————————————–
5	Tube, breather	511-8860	1	N/A		N/A	TBD
	—————————————————–
1	Head sub-assembly, cylinder	N/A	1	530-1267	Unknown	HEAD-GP-CYL-BSC	TBD
2	Gasket, cylinder head	511-7251	1
7	Stud	N/A	2
8	Stud	N/A	2
9	Pin	N/A	2
10	Bolt, cylinder head	N/A	4
	—————————————————–
11	Spark Plug	511-7297	1	N/A	Unknown	N/A	TBD
	—————————————————–
12	Gasket, cylinder head cover	N/A	1	N/A	Unknown	N/A	TBD
	—————————————————–
13	Retainer	N/A	1	530-1256	Unknown	RETAINER-GP	TBD
14	Bolt	N/A	1

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Crankcase Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
3	Sensor, engine oil	N/A	1	512-8285	815683021781	SENSOR-GP-LEVEL	$23.35
10	Bolt	501-5425	2
20	Nut	N/A	1
	—————————————————–
7	Arm, governor	N/A	1	512-8286	815683021798	LEVER-GP-CAL	$7.24
8	Washer, flat	N/A	1
9	Cotter	N/A	1
12	Seal, oil	N/A	1
	—————————————————–
2	Seal, oil	N/A	1	501-5442	815683021804	BEARING-GP-B	$7.30
11	Bearing, deep groove ball	N/A	1
	—————————————————–
1	Crankcase sub-assembly	N/A	1	512-8288 (old: 530-1246)	815683021811	CRANKCASE-GP	$164.29
4	Plug, rubber	N/A	1
5	Drain pipe	N/A	1
6	Bolt, drain plug	N/A	3
13	Clip	N/A	1
16	Washer, flat	N/A	2
19	Drain bolt	501-5404	1
21	Washer, flat	501-5404	1
	—————————————————–
17	Wire Protect Cover	N/A	1	512-8289	815683021828	COVER-GP	$22.46
15	Protector, oil	N/A	1
18	Bolt	N/A	1
14	Bolt, drain plug	N/A	1

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Crankcase Cover

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Cover, crankcase	N/A	1	512-8290 (old 511-7243)	815683021361	COVER-GP-REAR	TBD
2	Gasket, crankcase	511-7243	1
4	Pin	N/A	2
5	Bolt	N/A	7
	—————————————————–
6	Bearing, deep groove ball	N/A	1	501-5443	N/A	BEARING-GP-B	TBD
8	Seal, oil	N/A	1
9	Bearing, deep groove ball	N/A	1
	—————————————————–
3	Oil dipstick, sub-assembly	501-5087	1	N/A	N/A	N/A	$2.82
	—————————————————–
7	Gear assembly, governor	511-8847	1	N/A	N/A	N/A	$22.60

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Crankshaft Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Crankshaft Assembly	N/A	1	512-8292	815683021859	CRANKSHAFT-GP	$113.62
2	Shaft Assembly, balancing	N/A	1

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Piston / Connecting Rod Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
5	Piston rings set	511-7264	1	N/A	815683021392	N/A	TBD
	—————————————————–
1	Clip, piston pin	N/A	2	512-8293		PISTON-GP
2	Piston	N/A	1
3	Pin, piston	N/A	1			PISTON-GP
	—————————————————–
4	Road, connecting	N/A	1	512-8294		ROD-GP-CONN
6	Bolt, connecting rod	N/A	2

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Camshaft Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Camshaft assembly	N/A	1	530-1268	Unknown	CAMSHAFT-GP	TBD
2	Valves set	N/A	1
3	Guide, seal	N/A	1
4	Spring, valve	N/A	2
5	Seat, valve spring	N/A	2
6	Tappet, valve	N/A	2
7	Lifter subassembly, valve	N/A	2
8	Rocker shaft	N/A	2
9	Rotator, valve	N/A	2
10	Rocker arm, valve

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Recoil Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Starter assembly, recoil	N/A	1	512-8296	Unknown	PULLEY-GP-CSHAFT	TBD
2	Bolt	N/A	3

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Shroud Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Shroud	N/A	1	512-8297	815683021903	SHROUD-GP-AIR	TBD
2	Shroud, cylinder body	N/A	1
3	Bolt	N/A	1
4	Bolt	N/A	2
5	Clip	N/A	2

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Carburetor Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Caburetor assembly	511-7277	1	512-8298	815683021910	CARBURETOR-GP-B	TBD
2	Gasket, carburetor	511-7269	1
3	Plate, carburetor insulator	511-7271	1
4	Gasket, inlet	511-8857	1
5	High altitude kit (3k-6kft)	501-5088	1
6	High altitude kit (6k-8kft)	501-5089	1

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Air Cleaner Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Gasket, air cleaner	511-7286	2	512-8299	815683021927	CLEANER-GP-AIR-B	TBD
2	Cleaner, air	N/A	1
3	Nut	N/A	2
4	Filter, air cleaner	511-7290	1

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Muffler Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
3	Gasket, exhaust outlet	511-7291	1	512-8300	815683021934	MUFFLER-GP	TBD
4	Bolt	N/A	2
5	Bolt	N/A	2
8	Bracket, muffler	N/A	1
6	Muffler assembly	N/A	1
7	Nut	N/A	2
9	Muffler Air Guide Cover	N/A	1
10	Bolt	N/A	5
11	Spark Arrestor	501-5080	1

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Fuel Tank Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
6	Hose, fuel steam rubber	N/A	1	512-8302	815683021934	VENT-GP-FUEL	TBD
7	Rollover valve	N/A	1
8	Clamp	N/A	1
15	Clamp (** for older model only)	N/A	1
	—————————————————–
9	Fuel cap	N/A	1	512-8303	N/A	CAP-GP-FUEL	TBD
13	Chain, fuel cap	N/A	1
14	Clip. fuel cap chain	N/A	1
	—————————————————–
1	Bolt	N/A	4	501-5423	N/A	TANK-GP-FUEL-B	TBD
2	Washer	N/A	4
3	Bush	N/A	4
4	Sleeve, fuel tank rubber	N/A	4
5	Tank, fuel	511-7281	1
12	Leveler Gauge, fuel	501-5422	1
	—————————————————–
10	Strainer, Fuel	511-8851	1	511-8851	815683021514
	—————————————————–
11	Fuel Outlet nozzle	511-8853	1	511-8853	815683021521

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Flywheel Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
5	Bolt	N/A	2	512-8305	N/A	COIL-GP-IGNITION	TBD
6	Coil, ignition	N/A	1
7	Cap, spark plug	N/A	1
	—————————————————–
1	Nut, flywheel	N/A	1	512-8306	N/A	FLYWHEEL-GP	TBD
2	Cup, starter	N/A	1
3	Impeller	N/A	1
4	Flywheel, sub-assembly	N/A	1
	—————————————————–
8	Bolt	N/A	1	512-8307	N/A	CHARGER-GP-BTRY	TBD
9	Clamp, charge coil	N/A	1
10	Bolt	N/A	2
11	Coil sub-assembly, charge	N/A	1

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Governor Control Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Control assembly, throttle	N/A	1	512-8309	815683022016	GOVERNOT-GP-E	TBD
2	Bolt	N/A	3
3	Spring, throttle valve returning	N/A	1
4	Rod, governor	N/A	1
5	Spring, governor	511-7275	1
6	Support sub-assembly, governor	N/A	1
7	Bolt, governor support	N/A	1
8	Nut	N/A	1

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Frame Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Bolt	N/A	3	512-8310	815683022023	FRAME-GP	TBD
2	Clip	N/A	3
3	Frame assembly	N/A	1
29	Protect rubber		1
30	Nylon nut	N/A	2				TBD
31	Isolator	N/A	2
33	Rubber cushion	N/A	2
34	Cap nut	N/A	2
35	Sound absorbing cotton		2
	—————————————————–
4	Nut	N/A	4	512-8311	815683022047	ISOLATOR-GP	TBD
5	Nut	N/A	1
6	Isolator, frame	N/A	2
	—————————————————–
7	Left side panel	N/A		512-8312	815683022054	COVER-GP-LH
8	Bolt	N/A	1
28	Washer	N/A
	—————————————————–
9	Right side panel	N/A		512-8313	N/A	COVER-GP-RH
10	Bolt	N/A
28	Washer	N/A
	—————————————————–
11	Wire, positive	N/A		501-5428	815683022078	BATTERY-GP-MTG
12A	Wire, negative (from battery)	N/A
12B	Wire, negative (from G-head)	N/A
13	Bolt	N/A
14	Battery pressure plate	501-5090
15	Battery	511-7304
37	Bolt	N/A
	—————————————————–
16	Nut	N/A		512-8315	815683022085	SUPPORT-GP-FRAME
17	Bolt	N/A
18	Nut	N/A
19	Foot, frame support bracket	N/A
20	Support bracket, frame	N/A
	—————————————————–
21	Support bracket, ATR cleaner	N/A		512-8316	815683022092	SUPPORT-GP-ACL
22	Bolt	N/A
	—————————————————–
23	Handle	N/A		512-8317	815683022108	BRACKET-GP-D
24	Lock pin	N/A
25	Bolt	N/A
26	Nut	N/A
27	Foam, handle	N/A
36	Bolt	N/A
	—————————————————–			N/A	N/A	N/A
38	Foot, frame support bracket	N/A
39	Bolt	N/A
40	Nut	N/A

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Control Panel Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Bolt	512-8310	4	512-8319	815683022115	PANEL-GP-CONT-B	TBD
2	Panel sub-assembly, control	N/A	1
25	Washer	N/A	4
	—————————————————–
9	Fuel valve (individual UPC 815683021569)	511-7283	1	512-8320	815683022122	VALVE-GP-FUEL	TBD
10	Fuel valve, basement	N/A	1
11	Clamp	N/A	2
12	Tube, fuel	N/A	1
13	Tube, fuel	N/A	1
14	Jacket, rubber	N/A	1
15	Clamp	N/A	1
26	Clamp	N/A	1
	—————————————————–
5	Rain cover	511-8897	2	N/A	N/A		TBD
6	Rain cover, duplex	511-8898	2
8	Cover, panel rear	511-8894	1
16	Socket sub-assembly, power supply	511-8058	2
17	Protector, overcurrent	511-8047	2
18	Choke cable	511-8036	1
19	Timer	511-8060	1
20	Switch sub-assembly	511-8054	1
21	Socket sub-assembly, power supply	511-8057	1
22	Protector, overcurrent	511-5091	2
23	Socket sub-assembly, power supply	511-8056	1
24	LED light	501-5092	1		815683022078
27	Ground wire	530-1269	1
30	On / Off knob	501-5455	1

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Generator Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Terminal sub-assembly, grounding	N/A		N/A	N/A	N/A	TBD
2	Bolt	N/A
3	Bolt	N/A
4	Washer	N/A
6	Nut	N/A
	—————————————————–
7	Brush sub-assembly, carbon	N/A	1	501-5402	N/A	BRUSH-GP	TBD
8	Bolt	N/A	1
	—————————————————–
9	Block, terminal	N/A		N/A	N/A		TBD
10	Bolt	N/A
11	Washer	N/A
12	Motor assembly	N/A
13	Bolt	N/A
14	Bracket, motor	N/A
15	Bolt	N/A
16	Shroud, motor	N/A
22	Bolt	N/A
23	Band	N/A
24	Bolt	N/A
25	Nut	N/A
26	Lock washer	N/A
27	Ground wire	N/A
	—————————————————–
17	Bolt	N/A	1	512-8322		COVER-GP	TBD
18	Cover, motor tail	N/A	1
19	Stopper, motor right cover	N/A	1
	—————————————————–
20	Bolt	N/A	1	512-8323	815683022153	REGULATOR-GP-H	TBD
21	Regulator, voltage	511-7300	1
	—————————————————–
28	Gen head assembly (incl. items #1-27)	501-5093	1		815683021705		TBD

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Wheel Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Washer	N/A	2	512-8324	815683022160	WHEEL-GP-TIRE	TBD
2	Washer	N/A	2
3	Nut	N/A	2
4	Nut	N/A	2
6	Axle, wheel	511-7307	2
5	Wheel	N/A	2

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Starter Motor Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Motor, starting	511-8812	1	512-8325	815683022177	MOTOR-GP-ELECSTG	TBD
2	Bolt	N/A
3	Relay, starting	501-5095	1
4	Bolt	N/A

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Fuel Engine Assembly

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
E00-1	Engine, R420D-V	511-8016	1	N/A	N/A	N/A	TBD

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Tool Kit

Item #	Description	CAT Part #	Qty	CAT Grp Part #	Group UPC	Group Name	Price
1	Spark plug wrench kit	N/A	1	501-5146	N/A	TOOL-GP	TBD
2	Screwdriver	N/A	1
3	Spanner, double ended	N/A	2
4	Spanner, double ended	N/A	1
5	Tool kit bag	N/A	1
	—————————————————–
6	Funnel, filling oil	501-5147	1	N/A
	—————————————————–
7	Power cord 25′ L14-30P to (4) 5-20R	502-3692	1	N/A

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Reference Links

• Caterpillar RP7500 Detailed UPDATED Parts Diagrams (cat.com)
• Caterpillar RP7500 Parts Diagrams SUPERCEDED (cat.com does not allow direct linking to this page; please copy and paste; https://www.cat.com/en_US/by-industry/electric-power/product-support/port-generator-support.html )
• Maintenance Kit for RP6500, RP6500E, RP7500E, RP8000E
• Complete Troubleshooting Guide for Caterpillar RP7500E Portable Generators (AllThumbsDIY)
• Connecting a Portable Generator to the Home Main Electric Panel – Part 1
• Buying a Portable Generator Shed – Lifetime Horizontal Shed
• Building a Custom Portable Generator Shed
• Engine Tune up for Generac Wheelhouse 5500 / 5550 Portable Generator
• Fast and Easy Fix for Your Generac Wheelhouse 5500 / 5550 Portable Generator – Part 1
• Fast and Easy Fix for Your Generac Wheelhouse 5500 / 5550 Portable Generator – Part 2
• How to Properly Store Flammable Fuel
• What Fuel is Best for Small Engines
• Make Your Own Carburetor Gasket and Save Money
• Review – Neiko 10070A Torx Bit and External Torx Socket 35-piece Set
• Need a new generator? Consider DuroMax XP13000EH

Keywords

• rp7500 parts