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Home > Jeep Engine Parts > 4.0L AMC Engine Parts Page 2

4.0 Liter (242) AMC Engine

1987–2001 Jeep Cherokee
1993–2004 Jeep Grand Cherokee
1987–1990 Jeep Wagoneer
1987–1992 Jeep Comanche
1991–2006 Jeep Wrangler

The 4.0 engine appeared in 1987 and was in production in North America until 2006, when the Jeep Wrangler TJ was replaced by the new JK. The 4.0 was discontinued at the end of the 2006. This engine has performance features suited for off-road use. The ample low end torque is ideal for trailing and rock crawling. The only downfall to the engine is the relatively low power output, especially at high rpm, for mudding applications but this can be fixed with various aftermarket options including a supercharger for the engine. Interchangeability within the late AMC/Jeep engine family is superb. The better flowing 4.0 L heads can easily be modified to fit earlier engines right along with the fuel injection system.
Click for Diagram 1

Click on images to find parts in table below

Click for Diagram 1

Item# Description Years Comments Part Number Price Buy Now
#24 Valve, Intake, Std. 87/98 with head marked “ 15 “, w/ 1 groove 33003515 $12.99
Valve, Intake, Std. 98/06 w/ 3 radius cut grooves (on stem) 53010512AA $8.99
#25 Valve, Exhaust, Std. 87/99 .015 Oversize 4637539 $18.99
Valve, Exhaust, Std. 87/98 Std. w/ 1 radius cut groove (on stem) 4637537 $15.99
Valve, Exhaust, Std. 98/06 w/ 3 radius cut grooves (on stem) 53010513AA $12.99
#26 Seal, Valve Stem 87/06 Intake 53009886 $4.99
Seal, Valve Stem Exhaust 53009887 $4.99
#27 Lock, Valve Retainer 87/98 w/ 1 radius cut groove (on stem) 33003521 $0.99
Lock, Value Retainer 98/06 w/ 3 radius cut grooves (on stem) 53010515AA $0.99
#28 Rocker Arm 87/06 3242393 $4.99
Rocker Arm Kit 83/04 3242393K $49.99
#29 Pivot, Rocker Arm 87/06 3235090 $1.99
#30 Bridge, Rocker Arm Pivot 87/06 MRM1718 $3.99
#31 Pivot Kit 87/06 contains 2 pivots & 1 bridge 3236513K $3.99
#32 Bolt, Rocker Arm Pivot 87/06 9425708 $1.99
#33 Spring, Valve 96/06 53010388 $4.99
#34 Tappet (Lifter) 87/01 4740269 $6.99
#35 Push Rod 87/06 33002986 $2.99
#36 Timing Cover 87/92 $0.00
Timing Cover 93/99 53020222 $39.99
#37 Gasket & Seal Kit, Timing 87/91 8129097 $6.99
#38 Seal, Crankshaft Front 87/06 Front Main Seal 33004681 $2.99
#39 Gasket, Timing Cover 87/06 53020487 $2.99
#40 Guide, Timing Chain 87/06 33003446 $6.99
#41 Chain, Timing 87/93 Sprocket tooth thickness = .28" 33002977 $14.99
Chain, Timing 94/06 Sprocket tooth thickness = .40" 53020444 $48.99
#42 Sprocket, Camshaft 87/93 Sprocket tooth thickness = .28" 33002978 $26.99
Sprocket, Camshaft 94/98 Sprocket tooth thickness = .40" 53020445 $25.99
Sprocket, Camshaft 99/06 53010557AA $82.99
#43 Sprocket, Crankshaft 87/93 Sprocket tooth thickness = .28" 33002979 $20.99
Sprocket, Crankshaft 94/06 Sprocket tooth thickness = .40" 53020443 $21.99
#44 Damper, Vibration 87/04 $0.00
Damper and Seal Kit 87/04 33002920K $59.99
#45 Slinger, Oil 87/00 3173076 $1.99
#46 Bearing, Crankshaft Pilot 87/91 33004041 $7.99
Bearing, Crankshaft Pilot 92/99 53009181 $9.99
#47 Ring Gear, Flywheel 87/93 w/ Manual Transmission 3179741 $17.99
#48 Flywheel Assembly 97/04 TJ, 91-95 YJ, 91-01 XJ, 93-96 ZJ 53020519AB $139.99
Flywheel Assembly 87/90 XJ 33002672 $139.99
#49 Seal Kit, Crankshaft Rear 87/99 Rear Main Seal 4778126 $6.99
Seal Kit, Crankshaft Rear 00/05 5018594AA $9.99
#50 Manifold, Exhaust 87/90 53006244 $209.99
Manifold, Exhaust 91/99 Includes Flex Bellows 4883385 $199.99
Manifold, Exhaust 93/99 w/ Gasket 4883385K $249.99
Manifold, Exhaust 00/06 Cast Iron- Front ( WJ 99/04) 53010196 $199.99
Manifold, Exhaust 00/06 Cast Iron- Rear ( WJ 99/04) 53010199 $199.99
#51 Gasket, Manifold 87/90 4713263 $9.99
Gasket, Manifold 91/99 w/ Tubular 1 pc. Manifold 53010238 $14.99
Gasket, Manifold 00/06 w/ Cast Iron Split Manifold ( WJ 99/04) 4854038 $29.99
#52 Mount, Front 87/99 XJ & YJ 52040267 $15.99
Mount, Front 93/96 XJ RHD Right 52020018 $39.99
Mount, Front 93/99 XJ RHD Left $0.00
Mount, Front 00/01 XJ 52019201AC $55.99
Mount, Front 97/06 TJ Left & Right 52019278 $16.99
Mount, Front 93/98 ZJ Right 52018280 $29.99
Mount, Front 93/98 ZJ Left 52018281 $29.99
Mount, Front 99/04 WJ Right 52058928 $49.99
Mount, Front 99/04 WJ Left 52058929 $46.99
#53 Mount, Rear (transmission) 91/95 YJ 52002625 $19.99
Mount, Rear (transmission) 87/99 XJ 52002334 $40.99
Mount, Rear (transmission) 00/01 XJ 52059347AB $46.99
Mount, Rear (transmission) 97/06 TJ 52058551AB $28.99
#54 Insulator, Support Bracket 87/95 XJ 53000101 $2.99
#55 Cushion Assembly 87/90 w/ Peugeot BA10/5 Transmission 83505567 $74.99
#56 Bracket Assembly, Rear 93/96 ZJ- w/ Automatic Transmission 52018857 $35.99
Bracket Assembly, Rear 93/96 ZJ- w/ Manual Transmission 52018096 $29.99
#57 Support, Transmission 97/98 52058485 $38.99
Support, Transmission 99/04 WJ 2WD only 52058995 $42.99
Support, Transmission 99/04 WJ 4WD only 52058994 $44.99
#58 Mount Kit 87/95 YJ only 52019201K $39.99
#58a Engine Mount, 6 Cyl 4.0 L 87/06 RED- PAIR 1-502 $159.99
Engine Mount, 6 Cyl 4.0 L 87/06 BLACK- PAIR 1-502BL $163.99
#59 Engine Conversion System 91/98 65140 $1,049.99
Engine Conversion System 91/98 Hi-Torque 65141 $1,299.99
Click for Diagram 1