CAT 1L6931 SCREW for C18 Caterpillar Part - WSTPARTS

Need a dependable Bolt/Nut part for your Caterpillar C18, 3516B and C15 machine? The 1L6931 SCREW from WSTPARTS is manufactured to OEM-grade tolerances. It is categorized under Bolt/Nut. Every unit is fitment-verified before dispatch. Manual reference: 3512: BASIC ENGINE, group 144-0742, page 133; 3516B: BASIC ENGINE, group 106-4595, page 154.

1L6931 SCREW for Caterpillar C18 — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement SCREW (Part # 1L6931). Designed for CAT C18, 3516B, C15, 3306, 3406C, 3512, 3516, C32, C7, C9 equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT C18, 3516B, C15, 3306, 3406C, 3512, 3516, C32, C7, C9
• ✔ Meets Caterpillar original quality and performance standards
• ✔ Genuine CAT parts with anti-counterfeit label | OEM alternatives with warranty
• ✔ Available for order, contact for lead time

Specifications

Part Number (MPN)	1L6931
Product Name	SCREW
Brand	CAT
Applicable Models	C18, 3516B, C15, 3306, 3406C, 3512, 3516, C32, C7, C9
Weight	0.05 kg
Condition	New (Genuine / OEM Equivalent)
Warranty	12 Months

Where This Part Fits

Every row below is a real listing of 1L6931 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
3512	BASIC ENGINE	144-0742	p.133
3516B	BASIC ENGINE	106-4595	p.154
C15	BASIC ENGINE	243-0551	p.187
C18	BASIC ENGINE	243-0551	p.123
C32	BASIC ENGINE	365-5161	p.39
C9	BASIC ENGINE	242-0674	p.110
3126B	BASIC ENGINE	132-3844	p.125
3306	BASIC ENGINE	164-7562	p.133

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 1L6931 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 vs OEM replacement — what is the difference?
Genuine CAT parts carry an anti-counterfeit label. OEM equivalents are built to the same specifications, bench-tested and supplied with full warranty at a better price.

Stock, shipping and warranty?
Lead time confirmed on request; we quote the fastest available option. Every order is covered by a 12-month warranty.

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