CAT 5P7701 SEAL for 345C Caterpillar Part - WSTPARTS

Need a dependable Drivetrain part for your Caterpillar 345C, C18 and 3516B machine? The 5P7701 SEAL from WSTPARTS is manufactured to OEM-grade tolerances. It is categorized under Drivetrain. Every unit is fitment-verified before dispatch, backed by factory-direct pricing and warranty coverage, and currently in stock for dispatch within 24 hours. Manual reference: 330C: BASIC ENGINE, group 187-0473, page 79; 330D: BASIC ENGINE, group 229-3568, page 51.

5P7701 SEAL for Caterpillar 345C — Genuine & OEM Replacement Part

WSTPARTS supplies genuine and high-quality OEM replacement SEAL (Part # 5P7701). Designed for CAT 345C, C18, 3516B, 336D, 330C, 330D, 3406C, 345B, 3606, 3608, 3616, 365B, C13, C15, C27, C9, G3608, G3612, G3616, 345D equipment.

Compatible Models

Key Features

• ✔ 100% compatible with CAT 345C, C18, 3516B, 336D, 330C, 330D, 3406C, 345B, 3606, 3608, 3616, 365B, C13, C15, C27, C9, G3608, G3612, G3616, 345D
• ✔ Meets Caterpillar original quality and performance standards
• ✔ Genuine CAT parts with anti-counterfeit label | OEM alternatives with warranty
• ✔ In stock, ready to ship

Specifications

Part Number (MPN)	5P7701
Product Name	SEAL
Brand	CAT
Applicable Models	345C, C18, 3516B, 336D, 330C, 330D, 3406C, 345B, 3606, 3608, 3616, 365B, C13, C15, C27, C9, G3608, G3612, G3616, 345D
Weight	0.05 kg
Condition	New (Genuine / OEM Equivalent)
Warranty	12 Months

Where This Part Fits

Every row below is a real listing of 5P7701 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
330C	BASIC ENGINE	187-0473	p.79
330D	BASIC ENGINE	229-3568	p.51
336D	BASIC ENGINE	229-3568	p.63
3406C	LUBRICATION SYSTEM	155-4800	p.387
345B	BASIC ENGINE	138-1989	p.48
345C	BASIC ENGINE	230-8136	p.64
3516B	COOLING SYSTEM	166-5931	p.393
3606	BASIC ENGINE	194-0629	p.58

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.

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 5P7701 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 345C.

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?
In stock — ships within 24 hours. Every order is covered by a 12-month warranty.

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