| US SEAL INC | VALVE | EXHAUST | |||||||||||
| liter | cu.in | cc | engine | years | head | cyl | # val | model | stem | g/od | SEAL | SEAL | |
| NISSAN | |||||||||||||
| NIS | 1.6L | 1597 | e16,e16i | 1983-88 | sohc | L4 | 8V | sentra,pulsar | .276 | .474 | VS510 | ||
| NIS | 1.6L | 098 | 1597 | vin a,e, "ga16de" | 1995-99 | dohc | L4 | 16V | 200sx, sentra,nx | .217 | .376 | VS53Y | |
| NIS | 1.6L | 098 | 1597 | vin a,e, "ga16de" | 1991-94 | dohc | L4 | 16V | 200sx, sentra,nx | .217 | .376 | VS53Y | |
| NIS | 1.8L | 107 | 1769 | qg18de | 2000-06 | dohc | L4 | 16V | sentra | .217 | .376 | VS53Y | |
| NIS | 1.8L | 1798 | mr18de | 2007-08 | dohc | L4 | 16V | versa | TBA | ||||
| NIS | 2.0L | 1997 | mr20de | 2007-08 | dohc | L4 | 16V | sentra | TBA | ||||
| NIS | 2.0L | 122 | 1998 | vin b,g, "sr20de" | 1991-99 | dohc | L4 | 16V | 200sx, sentra,nx | .236 | .395 | VS504 | |
| NIS | 2.0L | 122 | 1998 | vin b,g, "sr20de" | 2001-01 | dohc | L4 | 16V | 200sx, sentra,nx | .236 | .395 | VS504 | |
| NIS | 2.4L | 146 | 2389 | vin n,s, "z24" | 1983-89 | sohc | L4 | 8V | trucks | .315 | .474 | VS442 | |
| NIS | 2.4L | 146 | 2389 | vin f,h,s, "ka24e" | 1989-94 | sohc | L4 | 12V | pass & truck | .276 | .435 | VS503 | VS442 |
| NIS | 2.4L | 146 | 2389 | vin f,h,s, "ka24e" | 1995-97 | sohc | L4 | 12V | pass & truck | .315 | .474 | VS503 | VS442 |
| NIS | 2.4L | 146 | 2389 | vin a,b,d,m, "ka24de" | 1995-98 | dohc | L4 | 16V | 240sx | .276 | .435 | VS503L | |
| NIS | 2.4L | 146 | 2389 | vin a,b,d,m, "ka24de" | 1991-97 | dohc | L4 | 16V | altima | .276 | .435 | VS503 | |
| NIS | 2.4L | 146 | 2389 | vin a,b,d,m, "ka24de" | 1998-99 | dohc | L4 | 16V | altima | .276 | .435 | VS503L | |
| NIS | 2.4L | 146 | 2389 | vin a,b,d,m, "ka24de" | 2000-01 | dohc | L4 | 16V | altima | .276 | .435 | VS503L | |
| NIS | 2.4L | 146 | 2389 | vin a,b,d,m, "ka24de" | 1998-04 | dohc | L4 | 16V | frontier,xterra | .276 | .435 | VS503L | |
| NIS | 2.5L | 151 | 2488 | qr25de, "hybrid" | 2002-06 | dohc | L4 | 16V | altima,sentra | .236 | .395 | VS504 | |
| NIS | 2.5L | 151 | 2488 | qr25de, "hybrid" | 2005-07 | dohc | L4 | 16V | frontier,rogue | .236 | .395 | VS504 | |
| NIS | 2.5L | 151 | 2488 | qr25de, "hybrid" | 2007-09 | dohc | L4 | 16V | altima,frontier,sentra,rogue | .236 | .395 | VS504 | |
| NIS | 3.0L | 181 | 2960 | vin 1,h,w, "vg30,e" | 1984-98 | sohc | V6 | 12V | pass & truck | .276 | .434 | VS503 | VS442 |
| NIS | 3.0L | 181 | 2960 | vin r, "vg30de" | 1990-96 | dohc | V6 | 24V | 300zx | .236 | .395 | VS504 | |
| NIS | 3.0L | 181 | 2960 | vin c, "vg30det" turbo | 1990-96 | dohc | V6 | 24V | 300zx turbo | .236 | .395 | VS504 | |
| NIS | 3.0L | 181 | 2960 | vin c, "vq30de" | 1995-01 | dohc | V6 | 24V | maxima | .236 | .395 | VS504 | |
| NIS | 3.0L | 181 | 2960 | vin e, "ve30de" | 1992-94 | dohc | V6 | 24V | maxima | .236 | .395 | VS504 | |
| NIS | 3.3L | 199 | 3275 | vin a, "vg33e" | 1996-04 | sohc | V6 | 12V | frontier,pathfinder,quest,xterra | .276 | .434 | VS503L | VS442 |
| NIS | 3.3L | 199 | 3275 | vg33er "supercharged" | 2001-04 | sohc | V6 | 12V | frontier,xterra | .276 | .434 | VS503L | VS442 |
| NIS | 3.5L | 213 | 3498 | vin a, "vq35de" | 2001-09 | dohc | V6 | 24V | altima,maxima,murano,pathfinder,quest | .236 | .395 | VS504 | |
| NIS | 3.5L | 213 | 3498 | vq35hr | 2002-06 | dohc | V6 | 24V | 350z | .236 | .395 | VS504 | |
| NIS | 3.5L | 213 | 3498 | vq35hr | 2007-09 | dohc | V6 | 24V | 350z | .236 | .395 | VS504 | |
| NIS | 4.0L | 3954 | vq40de | 2005-09 | dohc | V8 | 24V | frontier,pathfinder,xterrra | .236 | .395 | VS504 | ||
| NIS | 5.6L | 5552 | vk56de | 2004-09 | dohc | 32V | amanda,pathfinder,titan | .236 | .395 | VS504 |
