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331240 Cat / Caterpillar 3400 SERIES UPPER GASKET KIT
Commercial diesel gasket kits. Match the listed part and engine identifiers before ordering.
2-Year WarrantyPAI Industries
$286.85$314.23
Save $27.38
In stock — ships same day
PAI Part #331240
JAK'S Part #JAKS-331240
Included Components
What’s In This Kit
Browse 27 included components with current product details and availability.
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331300Caterpillar 3400 Aftercooler Gasket In stock -
331250Caterpillar 3400 Cover Gasket In stock -
331285Cat / Caterpillar REGULATOR COVER GASKET (Pack of 5) In stock -
331212Cat / Caterpillar TURBOCHARGER GASKET (Pack of 5) In stock -
331261Caterpillar 3400 / 3406B / 3406C Cylinder Head Gasket In stock -
331271Caterpillar 3400 Cylinder Block Plate Gasket In stock -
331286Caterpillar 3400 Inlet Cover Gasket In stock -
331290Cat / Caterpillar REGULATOR HOUSING GASKET (Pack of 5) In stock -
331289Cat / Caterpillar EXHAUST GASKET (Pack of 6) In stock -
121284Cat / Caterpillar O-RING (Pack of 10) In stock -
321222Caterpillar 3400 O-Ring In stock -
321214Caterpillar 3400 O-Ring In stock -
321248Caterpillar 3400 O-Ring In stock -
EGA-2995O-RING (Pack of 5) In stock -
321249Caterpillar / Fuller 3406E / C15 / C16 O-Ring In stock -
121256Cummins O-Ring In stock -
321219Caterpillar 3400 O-Ring In stock -
321251Caterpillar 3406E / C15 / C16 O-Ring In stock -
321230Caterpillar 3406E / C15 / C16 O-Ring In stock -
321250Caterpillar 3400 O-Ring In stock -
331254Caterpillar 3406E / C15 / C16 Head Gasket Seal In stock -
EOS-3305Cat / Caterpillar SEAL In stock -
331211Cat / Caterpillar AIR COMPRESSOR GASKET (Pack of 5) In stock -
336025Cat / Caterpillar FELT SEAL (Pack of 6) In stock -
321218Caterpillar 3406E / C15 / C16 O-Ring In stock -
331298Caterpillar 3406E / C15 / C16 Valve Cover Gasket In stock -
321285Caterpillar 3406E / C15 / C16 O-Ring Kit In stock - No included components match that search.
Kit Membership
Used In These Kits
This part is included in 2 engine & overhaul kits — find yours below.
Complete The Rebuild
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
| Brand | PAI Industries |
| Part Category | Gasket Sets & Kits |
| Sub-Type | Gasket Set |
UPPER GASKET KIT
Fits:
- CATERPILLAR 3400 SERIES
OEM cross-references:
- 331300 2N8204
- 331250 2N8630
- 331285 4N1156
- 331212 1S4295
- 331261 6I3066
- 331271 6I4024
- 331286 7C6188
- 331290 1048585
- 331289 1384611
- 121284 3040817
- 321222 1171385
- 321214 1H1023
- 321248 3S5496
- EGA-2995 56AX283
- 321249 6J2245
- EF30190 21209
- 121256 3032787
- 321219 8C5196
- 321251 617539
- 321230 2385080
- 321250 8M5249
- 331254 3E6772
- EOS-3305 447GC216A
- 331211 1446142
- 336025 8H9204
- 321218 4J7533
- 331298 5P5678-8
- 321285 2481394
- 321282 9X7317
- 321327 2303728
- 321284 2303775
Warranty: 24 months
Most PAI parts carry a 2-year unlimited-mileage PAI warranty — 3 years on the High Performance tier, 1 year on Excel by PAI. See Warranty & Returns for full coverage terms, or call a specialist to confirm the exact coverage on this part.
PAI published warranty tiers: High Performance — 3-Year · Genuine PAI — 2-Year · Excel — 1-Year, unlimited mileage. The badge beside the price shows this product's recorded term; when no badge is shown, confirm coverage with a specialist.

































