CAT 8S2331 BOLT for C18 Caterpillar Part - WSTPARTS

WSTPARTS supplies the 8S2331 BOLT, a CAT Bolt/Nut replacement part designed for Caterpillar C18, 3516B and C15 applications. It is categorized under Bolt/Nut. Every unit is fitment-verified before dispatch. Manual reference: 3306: ELECTRICAL AND STARTING SYSTEM, group 106-5520, page 1215; 3406E: ELECTRICAL AND STARTING SYSTEM, group 130-1159, page 415.

8S2331 BOLT for Caterpillar C18 — Genuine CAT & Replacement Part

WSTPARTS supplies genuine CAT and OEM-equivalent direct-replacement BOLT (Part # 8S2331). Designed for CAT C18, 3516B, C15, 3516C, 3306, 3406E, 3508C, 3512, 3512C, 3516, C9, G3508 equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT C18, 3516B, C15, 3516C, 3306, 3406E, 3508C, 3512, 3512C, 3516, C9, G3508
• ✔ 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)	8S2331
Product Name	BOLT
Brand	CAT
Applicable Models	C18, 3516B, C15, 3516C, 3306, 3406E, 3508C, 3512, 3512C, 3516, C9, G3508
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 8S2331 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	106-5520	p.1215
3406E	ELECTRICAL AND STARTING SYSTEM	130-1159	p.415
3508C	BASIC ENGINE	101-0834	p.114
3512	BASIC ENGINE	116-9856	p.219
3512C	BASIC ENGINE	261-7305	p.119
3516	BASIC ENGINE	112-5674	p.120
3516B	BASIC ENGINE	101-0835	p.89
3516C	BASIC ENGINE	175-5203	p.85

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 8S2331 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