$5 Off Your $100 Mobile App Purchase - Get the App

$5 Off Your $100 Mobile App Purchase - Get the App

Summit Racing Gift Cards - ALWAYS the Perfect Gift!

Filters

  • In Stock
  • Make/Engine
  • Section
  • Part Type
  • Brand
  • Make/Model
  • Filter Options
  • Savings Central

Selected Filters

Filter Results by Vehicle

Loading...

Availability

  • Filters

  • Make/Engine
  • Section
  • Part Type
  • Brand
  • Make/Model
  • Filter Options
  • Savings Central

JEEP 4.0L/242 Engines & Components

Showing In Stock Items. Show All 76 Items.

Individual Parts
Part Groups

Results 1 - 25 of 76

PROMAXX Performance OE-Replacement Jeep Inline Cylinder Heads *:CHR640N

PROMAXX Performance OE-Replacement Jeep Inline Cylinder Heads *:CHR640N

PROMAXX Performance OE-Replacement Jeep Inline Cylinder Heads *:CHR640N

Cylinder Head, OE-Replacement Jeep Inline, Assembled, Cast Iron, Natural, Jeep, 4.0L, Each

Part Number: PMX-CHR640N

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Friday 1/2/2026

...Loading

Estimated Ship Date: Friday 1/2/2026

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-6670-3905

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-6670-3905

D.S.S. FX-Series Forged 2618 Alloy Piston and Ring Kits K2-6670-3905

Piston Set, 4.7 Jeep 6 Cyl. K2-FX Series -10cc Jeep Dish Top Piston Set. 3.905 bore

Part Number: DMS-K2-6670-3905

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6675-3935

Made in the USA D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6675-3935

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6675-3935

Piston Set, 4.7 Jeep 6 Cyl. K1-FX Series -27cc Jeep Dish Top Piston Set. 3.935 bore

Part Number: DMS-K1-6675-3935

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6670-3935

Made in the USA D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6670-3935

D.S.S. FX-Series Forged 4032 Alloy Piston and Ring Kits K1-6670-3935

Piston Set, 4.7 Jeep 6 Cyl. K1-FX Series -10cc Jeep Dish Top Piston Set. 3.935 bore

Part Number: DMS-K1-6670-3935

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

ICON Premium Forged Piston and Ring Kits IC944KTM.060

ICON Premium Forged Piston and Ring Kits IC944KTM.060

ICON Premium Forged Piston and Ring Kits IC944KTM.060

Piston and Ring Kit, Forged, Dish, 3.935 in. Bore, Stroked, AMC, Jeep, 4.0L, Kit

Part Number: UEM-IC944KTM-060

Not Yet Reviewed

Estimated Ship Date: Feb 5, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 5, 2026 if ordered today

VEGE - Cylinder Heads for 2000-2001 CHEROKEE, 1999-2004 GRAND CHEROKEE, 2000-2006 WRANGLER - 2A34N

VEGE - Cylinder Heads for 2000-2001 CHEROKEE, 1999-2004 GRAND CHEROKEE, 2000-2006 WRANGLER - 2A34N

VEGE - Cylinder Heads for 2000-2001 CHEROKEE, 1999-2004 GRAND CHEROKEE, 2000-2006 WRANGLER - 2A34N

Heads, NEWAMC4.0/24299-04CYLHD

Part Number: VRE-2A34N

Not Yet Reviewed

Estimated Ship Date: Feb 6, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 6, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6650-3875

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6650-3875

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6650-3875

Piston Set, 4.0 Jeep 6 Cyl. 3-FX Series -10cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-3-6650-3875

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6650-3905

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6650-3905

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6650-3905

Piston Set, 4.0 Jeep 6 Cyl. 3-FX Series -10cc Jeep Dish Top Piston Set. 3.905 bore

Part Number: DMS-3-6650-3905

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6650-3915

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6650-3915

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6650-3915

Piston Set, 4.0 Jeep 6 Cyl. 3-FX Series -10cc Jeep Dish Top Piston Set. 3.915 bore

Part Number: DMS-3-6650-3915

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6650-3935

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6650-3935

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6650-3935

Piston Set, 4.0 Jeep 6 Cyl. 3-FX Series -10cc Jeep Dish Top Piston Set. 3.935 bore

Part Number: DMS-3-6650-3935

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6652-3875

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6652-3875

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6652-3875

Piston Set, 4.0 Jeep 6 Cyl. 3-FX Series -15cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-3-6652-3875

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6652-3905

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6652-3905

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6652-3905

Piston Set, 4.0 Jeep 6 Cyl. 3-FX Series -15cc Jeep Dish Top Piston Set. 3.905 bore

Part Number: DMS-3-6652-3905

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6652-3915

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6652-3915

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6652-3915

Piston Set, 4.0 Jeep 6 Cyl. 3-FX Series -15cc Jeep Dish Top Piston Set. 3.915 bore

Part Number: DMS-3-6652-3915

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6652-3935

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6652-3935

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6652-3935

Piston Set, 4.0 Jeep 6 Cyl. 3-FX Series -15cc Jeep Dish Top Piston Set. 3.935 bore

Part Number: DMS-3-6652-3935

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3875

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3875

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3875

Piston Set, 4.0 Jeep 6 Cyl. 3-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-3-6653-3875

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3905

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3905

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3905

Piston Set, 4.0 Jeep 6 Cyl. 3-FX Series -21cc Jeep Dish Top Piston Set. 3.905 bore

Part Number: DMS-3-6653-3905

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3915

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3915

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3915

Piston Set, 4.0 Jeep 6 Cyl. 3-FX Series -21cc Jeep Dish Top Piston Set. 3.915 bore

Part Number: DMS-3-6653-3915

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3935

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3935

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6653-3935

Piston Set, 4.0 Jeep 6 Cyl. 3-FX Series -21cc Jeep Dish Top Piston Set. 3.935 bore

Part Number: DMS-3-6653-3935

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6670-3875

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6670-3875

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6670-3875

Piston Set, 4.7 Jeep 6 Cyl. 3-FX Series -10cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-3-6670-3875

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6670-3905

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6670-3905

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6670-3905

Piston Set, 4.7 Jeep 6 Cyl. 3-FX Series -10cc Jeep Dish Top Piston Set. 3.905 bore

Part Number: DMS-3-6670-3905

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6670-3915

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6670-3915

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6670-3915

Piston Set, 4.7 Jeep 6 Cyl. 3-FX Series -10cc Jeep Dish Top Piston Set. 3.915 bore

Part Number: DMS-3-6670-3915

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6670-3935

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6670-3935

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6670-3935

Piston Set, 4.7 Jeep 6 Cyl. 3-FX Series -10cc Jeep Dish Top Piston Set. 3.935 bore

Part Number: DMS-3-6670-3935

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6673-3875

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6673-3875

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6673-3875

Piston Set, 4.7 Jeep 6 Cyl. 3-FX Series -21cc Jeep Dish Top Piston Set. 3.875 bore

Part Number: DMS-3-6673-3875

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6673-3905

Made in the USA D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6673-3905

D.S.S. FX-Series Forged 2618 Alloy Pistons with XR Wrist Pins 3-6673-3905

Piston Set, 4.7 Jeep 6 Cyl. 3-FX Series -21cc Jeep Dish Top Piston Set. 3.905 bore

Part Number: DMS-3-6673-3905

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 19, 2026 if ordered today

ICON Premium Forged Piston and Ring Kits IC944KTM.020

ICON Premium Forged Piston and Ring Kits IC944KTM.020

ICON Premium Forged Piston and Ring Kits IC944KTM.020

Piston and Ring Kit, Forged, Dish, 3.875 in. Bore, Stroked, AMC, Jeep, 4.0L, Kit

Part Number: UEM-IC944KTM-020

Not Yet Reviewed

Estimated Ship Date: Feb 5, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 5, 2026 if ordered today

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.

Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

Jumpstart Your Next Project!

View Details|See if you Prequalify