170-9986 18.9 mm OD Spring
Cat® 50.5 mm Long Piston Valve Spring
Description
Cat spring parts come in a variety of strengths and sizes to suit specific applications. Compression springs use a helical design that provides compression and tension as the spring compresses (shortens) when more weight is applied.
Specifications
| Spring Type | Compression |
|---|---|
| Outside Diameter | 18.9 mm (0.74 in) |
| Inside Diameter | 16.1 mm (0.63 in) |
| Length | 50.5 mm (1.99 in) |
Compatible Equipment
- Generator Sets: 3512B
- Excavators: 330D L, 349F L, 350, 325, 345 GC, 330 GC, 336, 352, 323 GX, 320 GX, 336E L, 336E, 333, 320, 340, 329D L, 329E L, 325D L, 349, 390F, 352F, 385C, 374F L, 349E L, 349E L VG, 349E, 385C L, 349D L, 345C, 345D L, 345C L, 345D, 365C, 385B, 385C FS, 365C L, 355, 320D L, 323, 340D2 L, 390D, 330D2, 336F L XE, 330C L, 336F L, 336D2 L, 325C, 324D L, 328D LCR, 336D L, 330C, 325C L, 336E LH, 325D, 336E H, 336D2 XE, 324D, 336F, 330GC, 350MHPU, 320 GC, 329E, 330D, 326, 336F LN, 336D2 GC, 336 GC, 330D2 L, 345B, 340D L, M325D L MH, 335, 323GC, 326GC, 333 GC, 326 GC, 323 GC, 326D L, 336E LN, 335F LCR, 326D2 L, 336D, 349D2 L, 349D2, 349D, 374D L, 390F L, 374F, 390D L, 329D2 L, 330, 336D2, 320D, 326D2, 329D, 329D2
Additional information
| Machine Model | 320, 320 GC, 320 GX, 320D, 320D L, 323, 323 GC, 323 GX, 323GC, 324D, 324D L, 325, 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, 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, 345 GC, 345B, 345C, 345C L, 345D, 345D L, 349, 349D, 349D L, 349D2, 349D2 L, 349E, 349E L, 349E L VG, 349F L, 350, 350MHPU, 3512B, 352, 352F, 355, 365C, 365C L, 374D L, 374F, 374F L, 385B, 385C, 385C FS, 385C L, 390D, 390D L, 390F, 390F L, M325D L MH |
|---|---|
| Equipment Type | |
| Part Source | Genuine OEM |







