| Home > Jeep Engine Parts > 4.2 liter (258) AMC Engine Parts |
Jeep AMC 6-Cylinder 4.2L (258ci) Engine Parts
Years: 1972-1990
The 258 cubic inch (4.2 L) "258" in-line six was manufactured from 1971 until 1990. It emphasized an 3.895 inch (98.93 mm) stroke and undersquare 3.75 inch (95.25 mm) bore. It was like the 199 and 232. Subsequent 258 models (starting with the 1980 model year for California AMCs, 1981 for California Jeeps and 1982 for all other applications) are furnished with AMC's CEC system.
Click on image numbers to find parts in table below
| Item | Image | Description | Years | Comments | Part Number |
Add To Cart |
| 1 |  |
Valve Cover, Plastic | 1981-1986 | Cover only | 83501398 |
$49.99
|
 |
Valve Cover, Plastic Kit | 1981-1986 | includes Neoprene Gasket | 83501398K |
$59.99
|
|
 |
Valve Cover, Aluminum Plain | 1981-1986 | includes Gasket & Hardware | 83501398-AL |
$109.99
|
|
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Valve Cover, Aluminum Black | 1981-1986 | includes Gasket & Hardware | 83501398-ALB |
$123.99
|
|
 |
Valve Cover, Aluminum Black | 1981-1986 | Cover Only | 4626079AB |
$299.99
|
|
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Valve Cover, Aluminum Polished | 1981-1986 | w/ "4.2L" Logo w/ Gasket & Hardware | 83501398K-AL-S |
$175.99
|
|
| 2 |  |
Gasket, Valve Cover | 1981-1986 | Layered Foam Rubber | 8053050 |
$24.99
|
 |
Gasket, Valve Cover | 1981-1986 | Gasket for Aluminum Cover Only | 8053050C-AL |
$12.99
|
|
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Gasket Set, Valve Cover | 1981-1986 | Gasket Kit w/ Hardware for Aluminum Cover | 258-HDW |
$22.99
|
|
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Gasket Set, Valve Cover | 1972-1980 | 6 Cyl, 258 or 232 | 3227854 |
$8.99
|
|
| 3 |  |
Cylinder Head | 1987-1990 | Cylinder Head Only - No Valves,Lifters,Springs,etc. | 83503322 |
$485.99
|
| 3a |  |
Gasket, Cylinder Head | 1968-1990 | 3237756 |
$16.99
|
|
| 4 |  |
Gasket Set, Upper | 1972-1990 | Includes Both Styles of Valve Cover Gasket | 83502384 |
$28.99
|
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Gasket Set, Upper | 1981-1990 | Late Style Valve Cover Casket | 8133352 |
$40.99
|
|
| 5 |  |
Gasket Set, Lower | 1975-1990 | 8125722 |
$24.99
|
|
| 6 |  |
Overhaul Gasket & Seal Kit | 1981-1990 | Includes 4 and 5 | FS31151 |
$53.99
|
 |
Overhaul Gasket Set | 1968-1980 | 8124691 |
$49.99
|
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| 7 |  |
Pump, Oil | 1972-1980 | Includes Inlet Tube | 3181340 |
$124.99
|
 |
Pump, Oil | 1981-1990 | Includes Inlet Tube | 3242141 |
$137.99
|
|
 |
Pump, Oil | 1981-1990 | Without Screen | 3242141WO | $134.99
|
|
| 8 |  |
Oil Pan | 1972-1989 | 3243152 |
$148.99
|
|
| 8a |  |
Oil Pan Gasket Set | 1972-1990 | Cork and Rubber set (4 pc.) | 83504662 |
$7.99
|
 |
Oil Pan Gasket | 1972-1990 | 1 Piece - Molded Reinforced Rubber | 53007568AC |
$36.99
|
|
| 9 |  |
Cap, Oil Filler | 1974-1980 | 8132312 |
$3.99
|
|
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Cap, Oil Filler | 1981-1990 | 33001016 |
$4.99
|
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| 10 |  |
Plug, Oil Pan | 1972-1984 | 1/2" x 20 magnetic | 3206696 |
$2.99
|
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Plug, Oil Pan | 1985-1990 | Plug & Gasket, Metric threads | 83501425 |
$2.99
|
|
| 11 |  |
Grommet | 1981-1986 | 0.48" Internal Diameter | 8134400 |
$0.99
|
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Grommet | 1987-1990 | 0.66" Internal Diameter | 53000957 |
$0.99
|
|
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Grommet | 1976-1986 | 0.45" Internal Diameter Export | 3225627 |
$0.99
|
|
| 11a |  |
PCV Valve | 1974-1978 | J3211538 |
$2.99
|
|
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PCV Valve | 1978-1980 | With AMC 232 or 258 | J3236680 |
$2.99
|
|
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PCV Valve | 1981 | AMC 258 | J3240359 |
$2.99
|
|
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PCV Valve | 1982-1986 | AMC 258 | J3241629 |
$2.99
|
|
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PCV Valve | 1983-1986 | 33000887 |
$2.99
|
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| 12 |  |
Piston & Pin (each) | 1966-1978 | Standard | 4488672 |
$34.99
|
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Piston & Pin (each) | 1979-1990 | Standard | 8134441 |
$52.99
|
|
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Piston & Pin (each) | 1979-1990 | .020" Oversize | 8134441.02 |
$55.99
|
|
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Piston & Pin (each) | 1979-1990 | .030" Oversize | 8134441.03 |
$54.99
|
|
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.020 Over Piston With Pin | 1966-1978 | .020" Oversize | 4488672.02 |
$34.99
|
|
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.030 Over Piston Ring Set | 1968-1990 | .030" Oversize | 4488672.03 |
$34.99
|
|
| 13 |  |
Ring Set For 6 Pistons Standard | 1968-1990 | Standard | 83506383 |
$79.99
|
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Ring Set For 6 Pistons .010 Over | 1968-1990 | .010" Oversize | 83506384 |
$85.99
|
|
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Ring Set For 6 Pistons .020 Over | 1968-1990 | .020" Oversize | 4485572.02 |
$49.99
|
|
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.030 Over Piston With Pin | 1966-1978 | .030" Oversize | 4485572.03 |
$49.99
|
|
| 14 |  |
Rod, Connecting | 1972-1990 | Includes Nut | 3237812 |
$29.99
|
| 15 |  |
Bolt, Connecting Rod | 1972-1990 | 53020123 |
$3.99
|
|
| 16 |  |
Main Bearing Set, Crankshaft | 1972-1990 | Includes 6 | 83507079K |
$96.99
|
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Main Bearing Set, Crankshaft | 1972-1990 | .010" Oversize Includes 6 | 4289M.010 |
$113.99
|
|
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Main Bearing Set, Crankshaft | 1972-1990 | .020" Oversize Includes 6 | 4289M.020 |
$107.99
|
|
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Main Bearing Set, Crankshaft | 1972-1990 | .030" Oversize Includes 6 | 4289M.030 |
$113.99
|
|
| 17 |  |
Thrust Bearing, Crankshaft | 1972-1990 | Standard (1 needed) | 83507084 |
$14.99
|
| 18 |  |
Bearing, Connecting Rod | 1972-1990 | Standard (6 needed) | 83500300AB |
$9.99
|
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Bearing, Connecting Rod | 1972-1990 | .001" Oversize (6 Needed) | 8126205 |
$9.99
|
|
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Bearing, Connecting Rod | 1972-1990 | .010" Oversize (6 needed) | 83500301AB |
$9.99
|
|
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Bearing, Connecting Rod | 1972-1990 | .020" Oversize (6 Needed) | 8126204.020 |
$9.99
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Bearing, Connecting Rod | 1972-1990 | .030" Oversize (6 Needed) | 8126204.030 |
$9.99
|
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| 19 |  |
Plug, Camshaft | 1972-1990 | 2-9/64" Diameter | 3172313 |
$1.99
|
| 20 |  |
Plug, Oil Hole | 1972-1990 | 2" Diameter | 3105394 |
$0.99
|
| 21 |  |
Sprocket, Crankshaft | 1972-1990 | 33004107 |
$13.99
|
|
| 22 |  |
Bearing, Crankshaft Pilot | 1972-1976 | 3213751 |
$2.99
|
|
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Bearing, Crankshaft Pilot | 1976-1979 | 3222723 |
$2.99
|
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Bearing, Crankshaft Pilot | 1980-1986 | Bushing type | 3236726 |
$4.99
|
|
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Bearing, Crankshaft Pilot | 1987-1990 | Bearing type | 33004041 |
$7.99
|
|
| 23 |  |
Ring Gear, Flywheel | 1972-1990 | w/ Manual Transmission | 3179741 |
$17.99
|
| 24 |  |
Flywheel Assembly | 1982-1987 | 1982-1986 CJ, 1987 YJ, 1982-1987 SJ | 3240094 |
$118.99
|
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Flywheel Assembly | 1988-1990 | Wrangler YJ | 33002672 |
$129.99
|
|
| 25 |  |
Seal, Crankshaft Rear | 1972-1990 | Rear Main Seal | 4778126 |
$6.99
|
| 26 |  |
Camshaft | 1968-1978 | 8132907 |
$99.99
|
|
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Camshaft | 1979-1990 | 8133009 |
$110.99
|
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Camshaft Kit | 1981-1990 | Includes camshaft, lifters & assembly lube | CLSRC8 |
$146.99
|
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| 27 |  |
Bearing Set, Camshaft | 1972-1990 | Set of 5 | 3205711 |
$32.99
|
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Bearing Set, Camshaft | 1972-1990 | Set of 5 - .010" Oversize | 3208985 |
$29.99
|
|
| 28 |  |
Valve, Intake | 1973-1980 | Standard | 3218732 |
$12.99
|
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Valve, Intake | 1973-1980 | .003" Oversize | 3218809 |
$13.99
|
|
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Valve, Intake | 1973-1980 | .015" Oversize | 3218810 |
$13.99
|
|
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Valve, Intake | 1981-1990 | Standard | 3240768 |
$15.99
|
|
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Valve, Intake | 1981-1990 | .003" Oversize | 3240166 |
$12.99
|
|
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Valve, Intake | 1981-1990 | .015" Oversize | 3240167 |
$15.99
|
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| 29 |  |
Valve, Exhaust | 1973-1980 | Standard | 3224597 |
$11.99
|
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Valve, Exhaust | 1973-1980 | .003" Oversize | 3224602 |
$12.99
|
|
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Valve, Exhaust | 1973-1980 | .015" Oversize | 3224603 |
$12.99
|
|
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Valve, Exhaust | 1981-1990 | Standard | 3240767 |
$18.99
|
|
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Valve, Exhaust | 1981-1990 | .003" Oversize | 3240163 |
$18.99
|
|
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Valve, Exhaust | 1981-1990 | .015" Oversize | 3240164 |
$20.99
|
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| 30 |  |
Deflector | 1972-1990 | Standard | 3218976 |
$0.99
|
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Deflector | 1972-1990 | .015" Oversize | 3218977 |
$0.99
|
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| 31 |  |
Lock, Valve Retainer | 1981-1990 | 3180458 |
$0.99
|
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| 32 |  |
Spring, Valve | 1977-1990 | 3228192 |
$9.99
|
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| 33 |  |
Rocker Arm | 1975-1982 | 3223888 |
$4.99
|
|
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Rocker Arm | 1983-1990 | 3242393 |
$4.99
|
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| 34 |  |
Pivot, Rocker Arm | 1972-1979 | CJ5, CJ6 and CJ7 | 3210178 |
$6.99
|
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Pivot, Rocker Arm | 1980-1990 | 3235090 |
$1.99
|
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| 35 |  |
Bridge, Rocker Arm Pivot | 1980-1990 | Without Stud | MRM1718 |
$3.99
|
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Bridge, Rocker Arm Pivot | 1981-1986 | With Stud (2 Required for Plastic Valve Covers) | 3237851 |
$4.99
|
|
| 36 |  |
Pivot Kit | 1980-1990 | Contains 2 Pivots & 1 Bridge | 3236513K |
$3.99
|
| 36a |  |
Rocker Arm Kit | 1974-1982 | 12 rocker arms and 6 aluminum pivots | 3223888K |
$59.99
|
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Rocker Arm Kit | 1974-1982 | 12 rocker arms and 6 steel pivots | 3223888KL |
$64.99
|
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| 36b |  |
Rocker Arm Kit | 1974-1982 | 2 rocker arms, 2 pivots and 1 bridge | MRK5412 |
$26.99
|
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Rocker Arm Kit | 1983-1990 | 2 rocker arms, 2 pivots and 1 bridge w/o Stud | MRK5512 |
$22.99
|
|
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Rocker Arm Kit | 1983-1990 | 2 rocker arms, 2 pivots and 1 bridge with Stud | MRK5522 |
$23.99
|
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| 37 |  |
Bolt, Rocker Arm Pivot | 1972-1990 | 9425708 |
$1.99
|
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| 38 |  |
Tappet (Lifter) | 1972-1990 | 4740269 |
$6.99
|
|
| 39 |  |
Push Rod | 1972-1977 | 1977 Models w/ Temp Sender in Front of Head | 3214013 |
$1.99
|
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Push Rod | 1977-1980 | 1977 Models w/ Temp Sender in Rear of Head | 3227329 |
$1.99
|
|
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Push Rod | 1981-1990 | 3242395 |
$2.99
|
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| 40 |  |
Timing Cover | 1965-1990 | 53005769 |
$48.99
|
|
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Timing Cover | 1975-1990 | With Molded Oil Pan Gasket | 4720223 |
$59.99
|
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| 41 |  |
Timing Cover Gasket & Seal Kit | 1965-1990 | 8129097 |
$6.99
|
|
| 42 |  |
Seal, Crankshaft Front | 1972-1990 | 33004681 |
$2.99
|
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| 43 |  |
Gasket, Timing Cover | 1972-1990 | 53020487 |
$2.99
|
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| 44 |  |
Chain, Timing | 1972-1990 | 3240781 |
$17.99
|
|
| 45 |  |
Sprocket, Camshaft | 1972-1990 | 3172306 |
$16.99
|
|
| 46 |  |
Kit, Timing | 1972-1990 | 8126681K |
$69.99
|
|
| 47 |  |
Vibration Damper - Harmonic Balancer | 1972-1990 | with V-belts | 3225201 |
$74.99
|
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Vibration Damper - Harmonic Balancer | 1981-1993 | 3242886 |
$55.99
|
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| 48 |  |
Slinger, Oil | 1972-1990 | 3173076 |
$1.99
|
|
| 49 |  |
Manifold, Exhaust | 1972-1979 | 8124999 |
$172.99
|
|
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Manifold, Exhaust | 1980-1990 | add 6-G444618 w/ no emissions pump | 3237427 |
$184.99
|
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| 49a |  |
Plugs for Manifold | 1980-1990 | For 3237427 Manifold w/o Emissions pump | 444618 |
$0.99
|
| 50 |  |
Gasket, Exhaust Manifold | 1972-1979 | Intake to Exhaust Manifold | 3184277 |
$1.99
|
| 52 |  |
Engine Mount, Front | 1977-1990 | CJ5, CJ7, CJ8 & Cherokee SJ | 8128488 |
$13.99
|
 |
Engine Mount, Front | 1987-1990 | Wrangler YJ | 52019201 |
$15.99
|
|
| 52a |  |
Engine Mount, Front Poly Red | 1977-1990 | CJ5, CJ7, CJ8 & Cherokee SJ | 21102R |
$31.99
|
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Engine Mount, Front Poly Black | 1977-1990 | CJ5, CJ7, CJ8 & Cherokee SJ Energy | 21102G |
$31.99
|
|
| 53 |  |
Mount, Rear (transmission) | 1972-1990 | CJ5, CJ7, CJ8 & Cherokee SJ Energy | 1370910 |
$11.99
|
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Mount, Rear (transmission) | 1987-1990 | Wrangler YJ | 52002625 |
$19.99
|
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| 54 |  |
Stud, Insulator | 1976-1990 | w/ manual transmission | 5358879 |
$3.99
|
| 55 |  |
Insulator | 1976-1990 | w/ manual transmission | 945266 |
$1.99
|
| 55A |  |
Insulator Poly Red | 1976-1990 | Energy Suspensions Polyurethane | 21101R |
$5.99
|
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Insulator Poly Black | 1976-1990 | Energy Suspensions Polyurethane | 21101G |
$5.99
|
|
| 56 |  |
Mount Kit | 1978-1986 | CJ5, CJ7 and CJ8 Scrambler | 8128488K |
$29.99
|
| 57 |  |
Filter, Engine Oil | 1972-1982 | 8993146 |
$5.99
|
|
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Filter, Engine Oil | 1983-1986 | 3242397 |
$5.99
|
||
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Filter, Engine Oil | 1987-1990 | w/ METRIC Threads | 33004195 |
$7.99
|
|
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Royal Purple Extended Life Oil Filter | 1976-1986 | Special Particle Removal 1976-1986 Jeep CJ7 4.2L & 2.5L |
RPL-10-47 |
$12.99
|
Years Covered: 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, & 1990
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