331677 Cat / Caterpillar 3126 SERIES UPPER GASKET KIT
What’s In This Kit
Browse 28 included components with current product details and availability.
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321394O-RING (Pack of 4) In stock -
340115Caterpillar Exhaust Manifold Stud, PAI (OEM 1163715), Pack of 6 In stock -
331264Cat Cylinder Head Gasket, PAI (OEM 133-4995) In stock -
321387O-RING (Pack of 10) In stock -
331274Cat Turbo Oil Drain Gasket, PAI (OEM 197-8419), Pack of 6 In stock -
321270Viton O-Ring, PAI (OEM 335853), Pack of 10 In stock -
321276Caterpillar O-Ring, PAI (OEM 2147568), Pack of 10 In stock -
331486Cat C7 Thermostat Housing Gasket, PAI (OEM 2225915), Pack of 5 In stock -
321453Cat / Caterpillar UNIVERSAL COMPONENTS O-RING (Pack of 10) In stock -
321230Caterpillar Viton O-Ring, PAI (OEM 2385080), Pack of 10 In stock -
331637Caterpillar C7 Exhaust Manifold Gasket, PAI (OEM 2628387), Pack of 1 In stock -
331636Caterpillar C7 Turbo Mounting Gasket, PAI (OEM 2692904), Pack of 1 In stock -
331482Cat C7 Valve Cover Gasket, PAI (OEM 2720388), Pack of 1 In stock -
331354Caterpillar 3100/C7 Exhaust Gasket, PAI (OEM 2721956), Pack of 6 In stock -
331675Caterpillar C7 Valve Cover Breather Gasket, PAI (OEM 2730883), Pack of 5 In stock -
331673Caterpillar C7 Crankcase Breather Gasket, PAI (OEM 2732727), Pack of 4 In stock -
340117Cat / Caterpillar TURBO MOUNTING STUD (Pack of 4) In stock -
331491Caterpillar C7 Thermostat Housing Gasket, PAI (OEM 2850365), Pack of 2 In stock -
331605Caterpillar C15 Air Control Valve Gasket, PAI (OEM 2893107), Pack of 1 In stock -
321228Caterpillar Buna-N O-Ring, PAI (OEM 2M9780), Pack of 10 In stock -
FNU-0403OEMMack MULTI NUT (Pack of 10) In stock -
321229Caterpillar / Mack 3100 / C7 / T310 M TRANSMISISON O-Ring In stock -
EGA-3061Cat / Caterpillar 3300 SERIES O-RING (Pack of 25) In stock -
321393Caterpillar O-Ring, PAI (OEM 6V3250), Pack of 10 In stock -
321480Cat C7 Valve O-Ring, PAI (OEM 6V3917) In stock -
321223Caterpillar Viton O-Ring, PAI (OEM 6V5048), Pack of 10 In stock -
321481Cat C7 Valve Sealing O-Ring, PAI (OEM 6V5166) In stock -
321386Caterpillar O-Ring, PAI (OEM 7L6580), Pack of 4 In stock - No included components match that search.
Suggested Additional Parts
Commonly sold with this product. These parts are sold separately.
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331516Cat / Caterpillar LOWER GASKET KIT In stock -
321475Caterpillar C7 Injector O-Ring Kit, PAI (OEM 4566994), Pack of 1 In stock -
321348Caterpillar C7 Fuel Injector O-Ring Kit, PAI (OEM 2974841), Pack of 1 In stock -
331679Cat / Caterpillar C7 ENGINE FRONT COVER GASKET KIT In stock -
340006Caterpillar 3100/C7 12-Point Screw, PAI (OEM 1383252), Pack of 4 In stock
| Brand | PAI Industries |
| Part Category | Gasket Sets & Kits |
| Sub-Type | Gasket Set |
| Engine Make | Caterpillar |
| Engine Model | 3126 |
UPPER GASKET KIT
Fits:
- CATERPILLAR 3126 SERIES
OEM cross-references:
- EF29180 14197
- 321394 5P9890
- 340115 1163715
- 331264 1334995
- 321387 1634565
- 331274 1978419
- 321270 335853
- 321276 2147568
- 331486 2225915
- 321453 2287089
- 321230 2385080
- 331637 2628387
- 331636 2692904
- 331482 2720388
- 331354 2721956
- 331675 2730883
- 331673 2732727
- 340117 2459750
- 331491 2850365
- 331605 2893107
- 321228 2M9780
- FNU-0403OEM 191AM3
- 321229 0336042
- EGA-3061 8813-154129
- EF30130 13653
- 321393 6V3250
- 321480 6V3917
- 321223 6V5048
- 321481 6V5166
- 321386 7L6580
- 331674OEM 2725861
- CATERPILLAR 272-5861
- CATERPILLAR 5414572
Warranty: 24 months
These catalog references may identify this part or components in an assembly. A listed number alone does not confirm whole-assembly interchange or vehicle fitment. Confirm the required part before ordering.
| Number |
|---|
| EF29180 14197 |
| 321394 5P9890 |
| 340115 1163715 |
| 331264 1334995 |
| 321387 1634565 |
| 331274 1978419 |
| 321270 335853 |
| 321276 2147568 |
| 331486 2225915 |
| 321453 2287089 |
| 321230 2385080 |
| 331637 2628387 |
| 331636 2692904 |
| 331482 2720388 |
| 331354 2721956 |
| 331675 2730883 |
| 331673 2732727 |
| 340117 2459750 |
| 331491 2850365 |
| 331605 2893107 |
| 321228 2M9780 |
| FNU-0403OEM 191AM3 |
| 321229 0336042 |
| EGA-3061 8813-154129 |
| EF30130 13653 |
| 321393 6V3250 |
| 321480 6V3917 |
| 321223 6V5048 |
| 321481 6V5166 |
| 321386 7L6580 |
| 331674OEM 2725861 |
| CATERPILLAR 272-5861 |
| CATERPILLAR 5414572 |
| PAI 331677 |
No cross-reference numbers match that search.
Discovery models are listed below. Confirm the complete application and any ESN/CPL or size restrictions before ordering.
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.

































