OS11378SA2
OS11378SA2 - Image 2
OS11378SA2 - Image 3

INCH OIL SEAL, STYLE SA2
NBR, SGL LIP W/ SPR, MTL OD W/ RFG PLATE
SHAFT: 3.938 IN (100.03 MM)
BORE: 5.251 IN (133.38 MM)
WIDTH: 0.438 IN (11.13 MM)

OS11378SA2

Quantity Pricing (ea)
  • 1 for $40.40
  • 10 for $32.30
  • 100 for $24.30
  • 500 for $16.20
  • 1000 for $12.10
Stock & Availability (ea)
In Stock: 0
Inbound Stock: 0
Offsite Stock: 75 ($50 Line Min)
Expedited Shipping*: 08/03/2026
Standard Shipping: 09/21/2026
New Production: Unlimited ($250 Line Min)
Expedited Shipping*: 09/14/2026
Standard Shipping: 11/02/2026
*Add your desired qty and click ADD TO CART to see expedite fees and options.

Interchange Part Numbers

  • (OLD) OS3.938-5.251-.438SA2
  • ARMCO YS3931
  • BEARINGSHEADQUARTERS C33RJ73360
  • BUCYRUS-ERIE 7-233-455E
  • COMBUSTIONENGINE FF313
  • FAILING,GEORGEE XCR525330
  • FAIRBANKS-MORSE CP6072J
  • HARNISCHEFEGER 18F681D177
  • HARNISCHEFEGER 18F682D167
  • HARNISCHEFEGER 18F682D297
  • JEFFERYELECTRIC 150046
  • L&S-SEALS 56182S
  • LETOURNEAU(WABCO) CE8649
  • LETOURNEAU(WABCO) HM1332
  • LINKBELT 1X3810
  • MACKDDS 145839320
  • MODERNPROCESSEQUIPM 39320
  • MOTIONINDUSTRIES X94630
  • NAVISTAR(IHC) 252098R91
  • NAVISTARPDC CR39320
  • SKF-SEALS OS39320
  • TIMKENSEALS 55191S
  • TRANSCOMINC(TCM) 39524SA
  • TRANSCOMINC(TCM) 39524TA
  • WESTINGHOUSEAIRBRAK 129F071
  • WESTON W52539343

Additional information

Weight 0.34744 lbs
Shipping Dimensions 5.251 × 5.251 × 0.438 in
Material

Size

11378
Style

Description

Product Drawing: OS11378SA2.pdf