103-8252 8.08 mm ID Ring

Description

Backup rings can prevent seal extrusion in high-pressure applications and can also be used to protect the life of the overall sealing system under sudden pressure changes.

Features

Cat® backup rings are designed together with the elastomeric seal and mating components and contribute greatly to the life and performance of sealing systems in high-pressure applications.

Backup ring dimensions strictly follow tight tolerances, ensuring they properly bridge the seal groove and the mating surfaces. Materials are selected based on their pressure resistance and wear resistance.

Backup rings are available in two types: closed rings and split rings. Split rings are used to ensure ease of installation.

Cat sealing systems prevent leaks and contamination of more expensive parts. Genuine Cat seals protect your investment.

Applications

Backup rings are used in high-pressure static and dynamic sealing applications, for example, hydraulic pumps, valves, and engine systems.

Specifications

Cross-Section Width	1.2 mm (0.05 in)
Inside Diameter	8.1 mm (0.319 in)
Cross-Section Height	1.7 mm (0.07 in)
Gasket Type	Flat Washer
Fits Bolt Size	1/4 in
Material	PTFE
Material Description	PTFE has a service temperature range of -40 to 260C and is resistant to air, fuel, oil, lubricants and coolant.
Outside Diameter	11.5 mm (0.453 in)
Thickness	1.3 mm (0.051 in)

Compatible Equipment

Generator Sets: 3512B, C7.1
Excavators: 349F L, 330D L, 320D FM, 340, 323 GC, 326 GC, 320, 320 GC, 336, 335, 325, 330D2, 333, 320D L, 328D LCR, 325C, 330 GC, 329D L, 323D L, 320C, 320D2 L, 325B, 320C L, 325D L, 330D2 L, 330C L, 323, 323D2, 336E L, 325B L, 320E, 330GC, 330D, 336F L, 325D, 329E L, 336D L, 336E, 320D GC, 312C L, 336D2 GC, 324D, 336D2 L, 325C L, 324D L, 330B, 323D2 L, 336F, 320B, 352F, 345C L, 345C, 349D L, 345D L, 340D L, 349E, 349E L, 340D2 L, 345D, 349E L VG, M325D L MH, 320 GX, 320D3, 326, 336 GC, 336F LN, 336E LN, 330C, 335F LCR, 323GC, 330 L, 336F L XE, 320D RR, 336D2 XE, 336E LH, 312C, 320D2 GC, 323 GX, 323D, 336E H, 329E, 326D L, 326GC, 333 GC, 320D, 336D, 330, 320D2, 349D2 L, 329D2 L, 336D2, 329D, 326D2 L, 349D2, 349D, 329D2, 326D2

Machine Model	312C, 312C L, 320, 320 GC, 320 GX, 320B, 320C, 320C L, 320D, 320D FM, 320D GC, 320D L, 320D RR, 320D2, 320D2 GC, 320D2 L, 320D3, 320E, 323, 323 GC, 323 GX, 323D, 323D L, 323D2, 323D2 L, 323GC, 324D, 324D L, 325, 325B, 325B L, 325C, 325C L, 325D, 325D L, 326, 326 GC, 326D L, 326D2, 326D2 L, 326GC, 328D LCR, 329D, 329D L, 329D2, 329D2 L, 329E, 329E L, 330, 330 GC, 330 L, 330B, 330C, 330C L, 330D, 330D L, 330D2, 330D2 L, 330GC, 333, 333 GC, 335, 335F LCR, 336, 336 GC, 336D, 336D L, 336D2, 336D2 GC, 336D2 L, 336D2 XE, 336E, 336E H, 336E L, 336E LH, 336E LN, 336F, 336F L, 336F L XE, 336F LN, 340, 340D L, 340D2 L, 345C, 345C L, 345D, 345D L, 349D, 349D L, 349D2, 349D2 L, 349E, 349E L, 349E L VG, 349F L, 3512B, 352F, C7.1, M325D L MH
Equipment Type	Excavators, Generator Sets
Part Source	Genuine OEM

Machine Model

312C, 312C L, 320, 320 GC, 320 GX, 320B, 320C, 320C L, 320D, 320D FM, 320D GC, 320D L, 320D RR, 320D2, 320D2 GC, 320D2 L, 320D3, 320E, 323, 323 GC, 323 GX, 323D, 323D L, 323D2, 323D2 L, 323GC, 324D, 324D L, 325, 325B, 325B L, 325C, 325C L, 325D, 325D L, 326, 326 GC, 326D L, 326D2, 326D2 L, 326GC, 328D LCR, 329D, 329D L, 329D2, 329D2 L, 329E, 329E L, 330, 330 GC, 330 L, 330B, 330C, 330C L, 330D, 330D L, 330D2, 330D2 L, 330GC, 333, 333 GC, 335, 335F LCR, 336, 336 GC, 336D, 336D L, 336D2, 336D2 GC, 336D2 L, 336D2 XE, 336E, 336E H, 336E L, 336E LH, 336E LN, 336F, 336F L, 336F L XE, 336F LN, 340, 340D L, 340D2 L, 345C, 345C L, 345D, 345D L, 349D, 349D L, 349D2, 349D2 L, 349E, 349E L, 349E L VG, 349F L, 3512B, 352F, C7.1, M325D L MH

Equipment Type

Excavators, Generator Sets

Part Source

Genuine OEM

103-8252 8.08 mm ID Ring