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3803478 | Cummins N14 Fuel Pump Overhaul Seal and Gasket Kit, New

Pricing: $55.89

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Think you know the truth about OE Fuel Pump Overhaul Seal and Gasket Kits? We'd bet you'd be surprised.

If we tried to sell you used parts for your Fuel Pump Overhaul Seal and Gasket, you’d call us crazy. But, if you’ve ever bought an OE Fuel Pump Overhaul Seal and Gasket Kit, you may have unknowingly paid a premium for used parts! Replacing used parts with more used parts!?! That sure doesn't sit right with us. How about you?

When it comes to engine parts, the aftermarket often gets a bad rep. The idea that the aftermarket retailers sell cheap parts, delivered in a beat-up box written in another language is just plain wrong. HHP is here to set the record straight. We only sell Fuel Pump Overhaul Seal and Gasket Kits with new parts and zero core charges. On top of only offering premium quality parts, we also make sure you save up to 50% off OEM prices. Now, doesn’t that sound more like the parts you should be installing in the biggest investment of your career?

Need a little extra proof? Let’s talk Rebuild Kits.

  • This kit is manufactured to the Original Equipment Manufacturers' Specifications.

  • This 3803478 Cummins N14 Fuel Pump Overhaul Seal and Gasket Kit has equivalent or better quality when compared to the OE at a considerably lower price.

  • This kit is manufactured and assembled in an ISO 9001: 2008 certified facility, ensuring quality and consistency with these Fuel Pump Overhaul Seal and Gaskets.

  • Keep More Money In Your Pocket when you choose HHP!


  • (1) Diaphragm
  • (1) Ring Seal
  • (2) O-Ring Seals
  • (2) Turbo Oil Inlet O-Ring Seal
  • (4) O-Ring Seals
  • (1) Front Cover Fuel Pump Gasket
  • (1) Front Drive Shaft Seal Kit
  • (1) O-Ring Seal
  • (1) Fuel Pump Gasket
  • (1) Gasket
  • (2) Square Cut Seals
  • (1) Seal
  • (1) Screen
  • (1) O-Ring Seal
  • (1) Fuel Pump Damper Washer


1-Year Unlimited Mileage Warranty

OEM Applications:

  • 3803478

Technical Data

Torque Specs:
Intake Manifold: 35 FT/LBS
Exhaust Manifold: 35,60 FT/LBS
Flywheel: 200 FT/LBS
Flywheel Surfacing: 2.932-2.942 CUP
Damper: 190 FT/LBS
Main Bearing Cap: 90, 170, 255 FT/LBS LOOSEN & REPEAT
Connecting Rod: 75, 195 FT/LBS
Cyl Head: 100, 220, 220 FT/LBS, + 90°
Camshaft Gear Bolt: CAM FOLLOWER ASSEMBLY 15, 35 FT/LBS

Tune-up Spec:
Compression Ratio: 16.3:1 RATIO
Firing Order: 1-5-3-6-2-4
Oil Pressure At Idle: 10 PSI @ 700RPM
Oil Pressure: 35-45 PSI
Intake Valve Lash: .014" COLD
Exhaust Valve Lash: .027" COLD (.686 MM)



Shipping Information

  • Item Requires Shipping
  • 0.6 lbs.
  • W8.0000” x H0.2500” x L10.0000”

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