3N-7327 Oil slinger CAT spare part

3N-7327 Oil slinger CAT spare part Featured Image
  • 3N-7327 Oil slinger CAT spare part
  • 3N-7327 Oil slinger CAT spare part
  • 3N-7327 Oil slinger CAT spare part

Short Description:

351-9210 CAT crankshaft assembly for G3520 gas generator engine, forged alloy steel with bolt-on counterweights and hardened journals. It converts reciprocating piston motion into rotary power for overhaul of CAT G3520 high-power gas engine.


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description

This oil slinger is a protective part for crankshaft front end of legacy CAT engines. It is a thin stamped carbon steel disc press-fitted on crank journal and rotates together with crankshaft. When running, oil hitting the slinger is thrown outward by centrifugal force and guided back to crankcase. It reduces continuous oil wash on the lip of front oil seal and delays seal aging and leakage. It is widely used for crank front seal repair on old dozers, construction machines and generator sets.

Part number: 3N-7327
Alternative name: Oil slinger, oil thrower ring
Material: Alloy Iron, Ductile (Spheroidal) Iron
Process: Sheet stamping, deburring, flatness correction
Mounting position: Crankshaft front end, between timing gear and front oil seal
Fit engine: CAT D342, D343, D353 legacy heavy diesel engines
Fit machine: Large track dozer, stationary mining power unit, marine auxiliary engine
Function: Throw oil away by centrifugal force, protect front oil seal and prevent crank front leakage

Advantages

1. Simple and durable structure, rotates with crankshaft with no extra drag.
2. Centrifugal oil diversion reduces oil wash on seal lip and extends seal service life.
3. Stamped flat disc maintains stable shape without high-speed distortion.
4. Press-fit design prevents loosening and shifting during operation.
5. Compact and low-cost, usually replaced together with front oil seal during overhaul.
6. Compatible with multiple legacy CAT heavy engines for easy stocking.

FAQ 

Q1: Can slightly rusted oil slinger be reused?
A1: Light surface rust can be cleaned. Replace if bent, cracked or deformed.
Q2: Can I install oil seal without this slinger?
A2: It works temporarily, but seal will suffer constant oil wash and leak again quickly.
Q3: Can 3N-7327 fit C15 crankshaft front end?
A3: Not interchangeable. Bore and outer diameter differ. It is for D342/D343/D353 only.
Q4: Is sealant required for slinger installation?
A4: No sealant needed. It relies on press fit. Loose glue may damage the oil seal.

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