CAT 9S1366 BOLT for C18 Caterpillar Part - WSTPARTS

9S1366 BOLT is a Bolt/Nut component engineered for Caterpillar C18, 3516B and C15 machines, built to match original factory specifications. It is categorized under Bolt/Nut. Every unit is fitment-verified before dispatch. Manual reference: 3306: ELECTRICAL AND STARTING SYSTEM, group 100-4510, page 908; 3406C: BASIC ENGINE, group 287-3561, page 139.

9S1366 BOLT for Caterpillar C18 — Genuine CAT & Replacement Part

WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement BOLT (Part # 9S1366). Designed for CAT C18, 3516B, C15, 3516C, 3306, 3406C, 3406E, 3512, 3512C, 3516, 3608, 3616, G3508, G3608, G3616 equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT C18, 3516B, C15, 3516C, 3306, 3406C, 3406E, 3512, 3512C, 3516, 3608, 3616, G3508, G3608, G3616
• ✔ Meets Caterpillar original quality and performance standards
• ✔ Genuine CAT lines: New Genuine / Cat Reman / Cat Classic | OEM-equivalent direct replacements
• ✔ Available for order, contact for lead time

Specifications

Part Number (MPN)	9S1366
Product Name	BOLT
Brand	CAT
Applicable Models	C18, 3516B, C15, 3516C, 3306, 3406C, 3406E, 3512, 3512C, 3516, 3608, 3616, G3508, G3608, G3616
Weight	0.09 kg
Condition	New (Genuine CAT / OEM-equivalent direct replacement)
Warranty	12 Months

Where This Part Fits

Every row below is a real listing of 9S1366 in the Caterpillar parts manual: the machine it is published under, the system it belongs to, the group number and the manual page. Use it to confirm the part against your own parts book before ordering.

Machine	System	Group No.	Manual Page
3306	ELECTRICAL AND STARTING SYSTEM	100-4510	p.908
3406C	BASIC ENGINE	287-3561	p.139
3406E	BASIC ENGINE	124-9046	p.150
3512	LUBRICATION SYSTEM	133-6461	p.298
3512C	GENERATORS	144-1825	p.394
3516	LUBRICATION SYSTEM	133-6461	p.177
3516B	AIR INLET AND EXHAUST SYSTEM	243-1286	p.479
3516C	LUBRICATION SYSTEM	243-1286	p.137

System Notes — ELECTRICAL AND STARTING SYSTEM

The electrical and starting system covers the battery, starter motor, alternator, wiring harness, relays, switches and the instrument panel. It carries current from the batteries to the starter to crank the engine, and from the alternator back to keep the batteries charged. Because these machines work in dust, vibration and wide temperature swings, connectors corrode, harness insulation chafes against the frame, and starter solenoids burn out from repeated short cranks. Parts in this group are usually replaced on a symptom basis — slow cranking, a dash warning, lights that dim under load, or a no-start condition traced to an open circuit.

System Notes — BASIC ENGINE

The basic engine group covers the core structure and internals: cylinder block, cylinder head, pistons, rings, liners, connecting rods, crankshaft, bearings, camshaft and the gasket sets that seal them. These parts determine compression, oil pressure and power output. They wear gradually — rings lose tension, bearings show copper, liners glaze — and the first signs are usually blow-by from the breather, rising oil consumption, or a knock that gets louder as the engine warms. Replacing a basic engine part is a planned overhaul decision rather than a roadside fix, so matching the exact part number and serial number range matters more here than anywhere else on the machine.

FAQ

Is 9S1366 the right part for my machine?
Match the part number on your old part, or send us your equipment serial number — WSTPARTS verifies fitment free of charge for CAT C18.

Genuine CAT vs direct replacement — what is the difference?
Genuine CAT covers three factory lines: New Genuine, Cat Reman (core exchange with core charge) and Cat Classic (brand-new economy line). OEM-equivalent direct replacements are non-CAT parts; grade and warranty are confirmed in the quotation.

Stock, shipping and warranty?
Lead time confirmed on request; we quote the fastest available option. Every order is covered by a warranty per quotation.

📞 Get a Quote: Contact the WSTPARTS parts team | Email: cat@wstparts.com