| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| << < 25 26 27 28 29 30 31 32 33 34 > >> | |||||
| 1981 | GMC | P3500 | 14 mm Tapered Seat | ||
| 1981 | GMC | P4500 | 14 mm Tapered Seat | ||
| 1981 | Jeep | CJ5 | L4 151 2.5L | 14 mm Tapered Seat | |
| 1981 | Jeep | CJ7 | L4 151 2.5L | 14 mm Tapered Seat | |
| 1981 | Jeep | DJ5 | L4 151 2.5L | 14 mm Tapered Seat | |
| 1981 | Jeep | Scrambler | L4 151 2.5L | 14 mm Tapered Seat | |
| 1981 | Lincoln | Mark VI | 14 mm Tapered Seat | ||
| 1981 | Lincoln | Town Car | 14 mm Tapered Seat | ||
| 1981 | Mercury | Capri | V8 255 4.2L | 14 mm Tapered Seat | |
| 1981 | Mercury | Cougar | V8 302 5.0L | 14 mm Tapered Seat | |
| 1981 | Mercury | Grand Marquis | 14 mm Tapered Seat | ||
| 1981 | Mercury | Marquis | 14 mm Tapered Seat | ||
| 1981 | Mercury | Zephyr | V8 255 4.2L | 14 mm Tapered Seat | |
| 1981 | Oldsmobile | 98 | V6 252 4.1L | 14 mm Tapered Seat | |
| 1981 | Oldsmobile | Cutlass | V6 231 3.8L (3800cc) | 14 mm Tapered Seat | |
| 1981 | Oldsmobile | Cutlass Calais | V6 231 3.8L (3800cc) | 14 mm Tapered Seat | |
| 1981 | Oldsmobile | Cutlass Cruiser | V6 231 3.8L (3800cc) | 14 mm Tapered Seat | |
| 1981 | Oldsmobile | Cutlass Supreme | V6 231 3.8L (3800cc) | 14 mm Tapered Seat | |
| 1981 | Oldsmobile | Delta 88 | V6 231 3.8L (3800cc) | 14 mm Tapered Seat | |
| 1981 | Oldsmobile | Omega | 14 mm Tapered Seat | ||
| 1981 | Oldsmobile | Toronado | V6 252 4.1L | 14 mm Tapered Seat | |
| 1981 | Plymouth | Gran Fury | L6 225 3.7L (3687cc) | 14 mm Tapered Seat | |
| 1981 | Plymouth | PB150 | L6 225 3.7L (3687cc) | 14 mm Tapered Seat | |
| 1981 | Plymouth | PB250 | L6 225 3.7L (3687cc) | 14 mm Tapered Seat | |
| 1981 | Pontiac | Bonneville | V6 231 3.8L (3800cc) | 14 mm Tapered Seat | |
| 1981 | Pontiac | Catalina | V6 231 3.8L (3800cc) | 14 mm Tapered Seat | |
| 1981 | Pontiac | Firebird | V8 301 4.9L | 14 mm Tapered Seat | |
| 1981 | Pontiac | Grand LeMans | V8 301 4.9L | 14 mm Tapered Seat | |
| 1981 | Pontiac | Grand Prix | V6 231 3.8L (3800cc) | 14 mm Tapered Seat | |
| 1981 | Pontiac | Laurentian | V8 265 4.3L | 14 mm Tapered Seat | |
| 1981 | Pontiac | LeMans | V8 301 4.9L | 14 mm Tapered Seat | |
| 1981 | Pontiac | Parisienne | V8 265 4.3L | 14 mm Tapered Seat | |
| 1981 | Pontiac | Phoenix | 14 mm Tapered Seat | ||
| 1981 | Pontiac | T1000 | 14 mm Tapered Seat | ||
| 1980 | American Motors | Concord | L4 151 2.5L; EngineMfr General Motors; VIN B | 14 mm Tapered Seat | |
| 1980 | American Motors | Spirit | L4 151 2.5L; EngineMfr General Motors; VIN B | 14 mm Tapered Seat | |
| 1980 | Buick | Century | V6 231 3.8L (3800cc) | 14 mm Tapered Seat | |
| 1980 | Buick | Electra | V8 350 5.7L; VIN X | 14 mm Tapered Seat | |
| 1980 | Buick | Estate Wagon | V8 350 5.7L; VIN X | 14 mm Tapered Seat | |
| 1980 | Buick | LeSabre | V6 231 3.8L (3800cc) | 14 mm Tapered Seat | |
| 1980 | Buick | Regal | V6 231 3.8L (3800cc) | 14 mm Tapered Seat | |
| 1980 | Buick | Riviera | V6 231 3.8L (3800cc) | 14 mm Tapered Seat | |
| 1980 | Buick | Skyhawk | V6 231 3.8L (3800cc) | 14 mm Tapered Seat | |
| 1980 | Buick | Skylark | V6 173 2.8L | 14 mm Tapered Seat | |
| 1980 | Cadillac | DeVille | V8 350 5.7L | 14 mm Tapered Seat | |
| 1980 | Cadillac | Eldorado | V8 350 5.7L | 14 mm Tapered Seat | |
| 1980 | Cadillac | Fleetwood | V8 350 5.7L | 14 mm Tapered Seat | |
| 1980 | Cadillac | Seville | V8 350 5.7L | 14 mm Tapered Seat | |
| 1980 | Chevrolet | B60 | V8 427 7.0L | 14 mm Tapered Seat | |
| 1980 | Chevrolet | C10 | V8 305 5.0L | 14 mm Tapered Seat | |