CAT 3S1546 NUT for 3516B Caterpillar Part - WSTPARTS

3S1546 NUT is a Bolt/Nut component engineered for Caterpillar 3516B, 3512 and G3508 machines, built to match original factory specifications. It is categorized under Bolt/Nut. Every unit is fitment-verified before dispatch. Manual reference: 3512: COOLING SYSTEM, group 120-7421, page 479; 3516C: LUBRICATION SYSTEM, group 312-6298, page 160.

3S1546 NUT for Caterpillar 3516B — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement NUT (Part # 3S1546). Designed for CAT 3516B, 3512, G3508, 3516C, 3516 equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT 3516B, 3512, G3508, 3516C, 3516
• ✔ 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)	3S1546
Product Name	NUT
Brand	CAT
Applicable Models	3516B, 3512, G3508, 3516C, 3516
Weight	0.05 kg
Condition	New (Genuine / OEM Equivalent)
Warranty	12 Months

Where This Part Fits

Every row below is a real listing of 3S1546 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	COOLING SYSTEM	120-7421	p.479
3516C	LUBRICATION SYSTEM	312-6298	p.160
3516	COOLING SYSTEM	127-5400	p.253
3516B	COOLING SYSTEM	127-5400	p.425
G3508	AIR INLET AND EXHAUST SYSTEM	116-7839	p.293
3512	COOLING SYSTEM	120-7421	p.481
3516	COOLING SYSTEM	127-5400	p.255
3516B	COOLING SYSTEM	127-5400	p.432

System Notes — COOLING SYSTEM

The cooling system covers the radiator, water pump, thermostat, fan and fan drive, coolant hoses, clamps, the surge tank and the belts that drive it. It holds engine temperature inside the range where clearances and oil film stay correct. Failures are usually slow and then sudden: a hose softens and balloons before it bursts, a water pump seal starts weeping from the weep hole, a thermostat sticks partly open so the engine runs cold and burns more fuel. On construction sites the radiator also packs with dust and debris, which raises pressure across the core and finds the weakest hose or clamp first.

System Notes — LUBRICATION SYSTEM

The lubrication system covers the oil pump, oil cooler, oil filter base, relief valves, dipstick tube, pan and the galleries that distribute oil to every bearing in the engine. It is the system that keeps metal off metal. Failures tend to be either pressure loss — a worn pump, a stuck relief valve, a collapsed filter — or contamination, where sludge and debris circulate and score bearing surfaces. Oil pressure that reads low at idle, a filter that comes out heavy, or oil that turns dark far sooner than usual are the signals. Parts in this group are replaced on measured oil pressure and lab results rather than on interval alone.

FAQ

Is 3S1546 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 3516B.

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