Home/Caterpillar 3406E Parts/Caterpillar O-Ring, PAI 321320 (OEM 1123102), Pack of 10
O-RING
Caterpillar · Models: 3406E / C15 / C16 / C18

Caterpillar O-Ring, PAI 321320 (OEM 1123102), Pack of 10

Commercial diesel seal & o-ring. Match the listed part and engine identifiers before ordering.
2-Year WarrantyPAI Industries
$24.80
In stock — confirm dispatch timing
Fitment details

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PAI Part #321320
JAK'S Part #JAKS-321320
Catalog ref112-3102
Catalog ref1123102
Catalog ref118-5068
Catalog ref1185068
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Kit Membership

Used In These Kits

This part is included in 2 engine & overhaul kits — find yours below.

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Commonly sold with this product. These parts are sold separately.

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Caterpillar O-Ring, PAI 321320 (OEM 1123102), Pack of 10
BrandPAI Industries
Part CategorySeals & O-Rings
Sub-TypeO-Ring
Engine MakeCaterpillar
Engine Model3406E · C15 · C16 · C18
ConditionNew
Stage / TierStandard

Pack of 10.

PAI 321320 is an o-ring. PAI lists Viton material. The listed durometer is 75. Listed cross section is 0.103 inch. Listed inside diameter is 0.612 inches. The manufacturer designates product-level OEM 1123102.

Compatible Engines

PAI lists Caterpillar 3406E Series; Caterpillar C15 Engine; Caterpillar C16 Engines; Caterpillar C18 Engine. Match the complete required part number and listed application before ordering.

Manufacturer product cross-references
Caterpillar 112-3102
Caterpillar 1123102
Caterpillar 118-5068
Caterpillar 1185068

Compare the complete part number, material and required seal specification before ordering.

PAI Part #: 321320

OEM References:

  • CATERPILLAR 112-3102
  • CATERPILLAR 1123102
  • CATERPILLAR 118-5068
  • CATERPILLAR 1185068

Applications:

  • CATERPILLAR 3406E SERIES
  • CATERPILLAR C15 ENGINE
  • CATERPILLAR C16 ENGINES
  • CATERPILLAR C18 ENGINE

Warranty: 2.0 year(s)