Parts-HQ is a market leading supplier of replacement parts for a diverse range of products – from consumer electronics and appliances. Through distribution facilities strategically located throughout the world, Parts-HQ supplies new, refurbished exact and compatible alternative parts for nearly 200 top manufacturer brands. With the largest multi-vendor parts inventory in the industry, we provide access to 8+ million parts in our database, helping to ensure you get the parts you need, when you need them.

Filters

Clear All
Price
to

Less than $25

$25-49.99

$50-74.99

$75-99.99

Over $100

Dell OptiPlex 990 Parts

Model Number Finder

Shop for Your Specific model to find parts that fit
  • Showing 354 Product(s)
CMSX16GX3M2A1600C10 - 16GB Memory Module Kit
$ 119.79 453693 See Also 1.5 Volt Vengeance SODIMM kits are designed for notebooks with a 2nd or 3rd Generation Intel Core i5 or Core i7 processor. CORSAIR On Sale
See Also 1.5 Volt Vengeance SODIMM kits are designed for notebooks with a 2nd or 3rd Generation Intel Core i5 or Core i7 processor.
Save $ 37.83
Was 157.62
313-9009 - 16X Serial ATA HALF-HEIGHT DVD+/ -RW Drive
$ 14.79 311011 6WFGH Dell On Sale
Save $ 4.67
Was 19.46
X90ND - 16X, Dvdrw, Half Height, Bare, (Together With Screw 3J9X7V X2)
$ 14.79 380521 DVD+ -RW, 16X, HH, BARE, TSST Dell On Sale
DVD+ -RW 16X HH BARE TSST
Save $ 4.67
Was 19.46
VYY04 - 16X, Dvdrw, Half Height, Bare, SNO (Together With Screw 3J9X7V X2)
$ 14.79 379228 DVD+ -RW, S2, 16X, HH, BARE, SNO Dell On Sale
DVD+ -RW S2 16X HH BARE SNO
Save $ 4.67
Was 19.46
9M62C - 19" Flat Panel Display
$ 111.76 389384 Dell On Sale
Save $ 35.29
Was 147.05
TW149 - 1GB Memory Module (Dimm, 1G, DDR3, 1333M, 8, 240)
$ 31.76 232357 1333 128X64 Dell On Sale
1333 128X64
Save $ 10.03
Was 41.79
3F9XC - 1GB Radeon HD 7570 Low Profile Graphics Card Board
$ 187.18 528927 Dell On Sale
Save $ 59.11
Was 246.29
Y3YJ8 - 1TB Hard Drive (SATA3)
$ 39.95 381283 HD, 1T, S3, 7 9V4PG Equivalent in functionality to: 2T51W, 8WDYM, WN524, CW76M, G1XNT, 5P30F, D3YV6, 6TFN1, 8JYXK, 9YZ164-036, 0GTP0, 2VM6H, 342-3161, 3C46W, 7GPGH, 9FJPW, 9V4PG, 9YN162-501, 9YP154-520, A3555513 Dell On Sale
Save $ 12.62
Was 52.57
CTRY5 - 1TB Hard Drive Unit
$ 88.79 696624 Dell On Sale
Save $ 28.04
Was 116.83
400-AHJG - 1TB Hard Drive Unit
$ 88.79 696625 Dell On Sale
Save $ 28.04
Was 116.83
V6W2C - 2.50GHZ Processor Unit (Pymng - 2)
$ 143.76 378889 SR00S, PRC I5-2400S, 2.50GHz, . Dell On Sale
Save $ 45.40
Was 189.16
YYJJ8 - 2.80GHZ Processor 2.8GHZ, G840, 3MB, 65W, Intel Sandy Bridge, Q0
$ 104.17 382076 2.8ghz, g840, 3mb, 65w, sandy bridge, q0 (disptach kit 9yd8r) . Dell On Sale
2.8ghz g840 3mb 65w sandy bridge q0 (disptach kit 9yd8r) .
Save $ 32.90
Was 137.07
2TXYM - 240W Power Supply
$ 59.75 337491 PWR SPLY, 240W, SFF, APFC, LITEON Model No: L240AS-00 PN: PS-5241-5DF Dell On Sale
PWR SPLY 240W SFF APFC LITEON Model No: L240AS-00 PN: PS-5241-5DF
Save $ 18.87
Was 78.62
HNJC4 - 240W Power Supply, Slim Form Factor, EPA, (Halogen Free)
$ 59.75 371461 PWR SPLY, 240W, SFF, EPA, HIPRO, HF Dell On Sale
PWR SPLY 240W SFF EPA HIPRO HF
Save $ 18.87
Was 78.62
66VFV - 240W Power Supply, Slim Form Factor, EPA, (Halogen Free)
$ 59.75 365369 PWR SPLY, 240W, SFF, EPA, ACBEL, HF Dell On Sale
PWR SPLY 240W SFF EPA ACBEL HF
Save $ 18.87
Was 78.62
342-0860 - 250GB 7200 RPM Serial ATA Hard Drive
$ 39.79 311409 KMGP1 Dell On Sale
Save $ 12.57
Was 52.36
KMGP1 - 250GB 7200 RPM Serial ATA Hard Drive
$ 39.79 312268 Dell On Sale
Save $ 12.57
Was 52.36
YWFFW - 250GB Hard Drive (250G, S2)
$ 48.51 382006 HD, 250G, S2, 7 (Contains VV4P8 250GB S2 P11, 7) Dell On Sale
HD 250G S2 7 (Contains VV4P8 250GB S2 P11 7)
Save $ 15.32
Was 63.83
Y19R3 - 250GB Hard Drive (P11)
$ 39.79 381144 HD, 250GB, P11, 7 WD2500BEKT-75A25T0 Dell On Sale
HD 250GB P11 7 WD2500BEKT-75A25T0
Save $ 12.57
Was 52.36