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Jeep Willys Engine Block Parts

This page brings together engine block parts for the Jeep Willys, covering model years 1941–1958. The range spans piston ring sets, individual piston rings, and engine mounts, with options in cast iron and OE-replacement styles. Choose your model year above and this page keeps only the engine block parts that fit your Jeep Willys. Each listing is matched to our vehicle fitment data before it appears here.

31 - 56 of 56 results

Best Seller
Picture of MAHLE 5007.040 Engine Piston Ring Set Oversize - 0.040

MAHLE 5007.040 Engine Piston Ring Set Oversize - 0.040

27 reviews
Part: 5007.040
Vehicle Specific
$34.46
Ships from manufacturer
Picture for manufacturer MAHLE
Best Seller Free Shipping
Picture of MAHLE 50134CP.040 Original Standard Engine Piston Ring Set Oversize - 0.040

MAHLE 50134CP.040 Original Standard Engine Piston Ring Set Oversize - 0.040

12 reviews
Part: 50134CP.040
Vehicle Specific
$65.81
Ships from manufacturer
Picture for manufacturer MAHLE
Best Seller Free Shipping
Picture of MAHLE 40460.040 Engine Piston Ring Set +0.040" Oversize

MAHLE 40460.040 Engine Piston Ring Set +0.040" Oversize

52 reviews
Part: 40460.040
Vehicle Specific
$120.29
Ships from manufacturer
Picture for manufacturer MAHLE
Free Shipping
Picture of MAHLE 42192CP.030 Engine Piston Ring Set Oversize - 0.030

MAHLE 42192CP.030 Engine Piston Ring Set Oversize - 0.030

47 reviews
Part: 42192CP.030
Vehicle Specific
$81.84
Ships from manufacturer
Picture for manufacturer MAHLE
Picture of MAHLE 51104CP.030 Engine Piston Ring Set Oversize - 0.030 Representative Photo, actual item may vary

MAHLE 51104CP.030 Engine Piston Ring Set Oversize - 0.030

28 reviews
Part: 51104CP.030
Vehicle Specific
$38.11
Ships from manufacturer
Picture for manufacturer MAHLE
Picture of MAHLE 50533CP Engine Piston Ring Set

MAHLE 50533CP Engine Piston Ring Set

17 reviews
Part: 50533CP
Vehicle Specific
$44.66
Ships from manufacturer
Picture for manufacturer MAHLE
Picture of MAHLE 41470CP Engine Piston Ring Set

MAHLE 41470CP Engine Piston Ring Set

29 reviews
Part: 41470CP
Vehicle Specific
$29.27
Ships from manufacturer
Picture for manufacturer MAHLE
Free Shipping
Picture of MAHLE 41226 Engine Piston Ring Set Representative Photo, actual item may vary

MAHLE 41226 Engine Piston Ring Set

43 reviews
Part: 41226
Vehicle Specific
$72.57
Ships from manufacturer
Picture for manufacturer MAHLE
Picture of MAHLE 51874CP.030 Engine Piston Ring Set Oversize - 030 Representative Photo, actual item may vary

MAHLE 51874CP.030 Engine Piston Ring Set Oversize - 030

33 reviews
Part: 51874CP.030
Vehicle Specific
$31.56
Ships from manufacturer
Picture for manufacturer MAHLE
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Picture of MAHLE 51497CP.060 Standard Piston Ring Set Bore Oversize - 4.060 0.060

MAHLE 51497CP.060 Standard Piston Ring Set Bore Oversize - 4.060 0.060

41 reviews
Part: 51497CP.060
Vehicle Specific
$88.20
Ships from manufacturer
Picture for manufacturer MAHLE
Picture of MAHLE 51457CP Engine Piston Ring Set

MAHLE 51457CP Engine Piston Ring Set

19 reviews
Part: 51457CP
Vehicle Specific
$27.97
Ships from manufacturer
Picture for manufacturer MAHLE
Free Shipping
Picture of MAHLE 40533CP.020 Premium Engine Piston Ring Set Over - 0.020

MAHLE 40533CP.020 Premium Engine Piston Ring Set Over - 0.020

36 reviews
Part: 40533CP.020
Vehicle Specific
$83.83
Ships from manufacturer
Picture for manufacturer MAHLE
Picture of MAHLE 5007.080 Engine Piston Ring Set Oversize - 0.80mm

MAHLE 5007.080 Engine Piston Ring Set Oversize - 0.80mm

12 reviews
Part: 5007.080
Vehicle Specific
$35.10
Ships from manufacturer
Picture for manufacturer MAHLE
Picture of MAHLE 5007.060 Standard Piston Ring Set 3.125 in. Bore 0.060 Over Cast Iron

MAHLE 5007.060 Standard Piston Ring Set 3.125 in. Bore 0.060 Over Cast Iron

73 reviews
Part: 5007.060
Vehicle Specific
$28.69
Ships from manufacturer
Picture for manufacturer MAHLE
Free Shipping
Picture of MAHLE 40843CP Clevite Engine Piston Ring Set Representative Photo, actual item may vary

MAHLE 40843CP Clevite Engine Piston Ring Set

26 reviews
Part: 40843CP
Vehicle Specific
$111.12
Ships from manufacturer
Picture for manufacturer MAHLE
Picture of MAHLE 50620.060 Engine Piston Ring Set Representative Photo, actual item may vary

MAHLE 50620.060 Engine Piston Ring Set

17 reviews
Part: 50620.060
Vehicle Specific
$38.98
Ships from manufacturer
Picture for manufacturer MAHLE
Free Shipping
Picture of MAHLE 42146CP.010 Premium Engine Piston Ring Set Oversize - 0.010

MAHLE 42146CP.010 Premium Engine Piston Ring Set Oversize - 0.010

6 reviews
Part: 42146CP.010
Vehicle Specific
$117.72
Ships from manufacturer
Picture for manufacturer MAHLE
Picture of MAHLE 41240CP.040 Premium Engine Piston Ring Set 4.040in Bore .040 Oversize L4 Representative Photo, actual item may vary

MAHLE 41240CP.040 Premium Engine Piston Ring Set 4.040in Bore .040 Oversize L4

36 reviews
Part: 41240CP.040
Vehicle Specific
$31.19
Ships from manufacturer
Picture for manufacturer MAHLE
Picture of MAHLE 51284CP.040 Premium Engine Piston Ring Set - 0.040" Oversize Bore Representative Photo, actual item may vary

MAHLE 51284CP.040 Premium Engine Piston Ring Set - 0.040" Oversize Bore

44 reviews
Part: 51284CP.040
Vehicle Specific
$40.80
Ships from manufacturer
Picture for manufacturer MAHLE
Free Shipping
Picture of MAHLE 41247 Engine Piston Ring - Set Representative Photo, actual item may vary

MAHLE 41247 Engine Piston Ring - Set

28 reviews
Part: 41247
Vehicle Specific
$79.80
Ships from manufacturer
Picture for manufacturer MAHLE
Free Shipping
Picture of MAHLE 41286CP.040 Original Engine Piston Ring Set Oversize - 040

MAHLE 41286CP.040 Original Engine Piston Ring Set Oversize - 040

71 reviews
Part: 41286CP.040
Vehicle Specific
$62.49
Ships from manufacturer
Picture for manufacturer MAHLE
Free Shipping
Picture of MAHLE 4007.060 Engine Piston Ring Set Oversize - 0.060

MAHLE 4007.060 Engine Piston Ring Set Oversize - 0.060

57 reviews
Part: 4007.060
Vehicle Specific
$64.57
Ships from manufacturer
Picture for manufacturer MAHLE
Picture of MAHLE 41097CP.020 Original Premium Engine Piston Ring Set Oversize - 0.020

MAHLE 41097CP.020 Original Premium Engine Piston Ring Set Oversize - 0.020

10 reviews
Part: 41097CP.020
Vehicle Specific
$40.64
Ships from manufacturer
Picture for manufacturer MAHLE
Picture of MAHLE 51550CP.030 Engine Piston Ring Set Oversize Cast Iron - 0.030

MAHLE 51550CP.030 Engine Piston Ring Set Oversize Cast Iron - 0.030

52 reviews
Part: 51550CP.030
Vehicle Specific
$48.30
Ships from manufacturer
Picture for manufacturer MAHLE
Picture of MAHLE 50849CP Premium Plasma-Moly Engine Piston Ring Set

MAHLE 50849CP Premium Plasma-Moly Engine Piston Ring Set

49 reviews
Part: 50849CP
Vehicle Specific
$48.60
Ships from manufacturer
Picture for manufacturer MAHLE
Free Shipping
Picture of MAHLE 42209.010 Engine Piston Ring Set Representative Photo, actual item may vary

MAHLE 42209.010 Engine Piston Ring Set

30 reviews
Part: 42209.010
Vehicle Specific
$116.53
Ships from manufacturer
Picture for manufacturer MAHLE

What's here for your Jeep Willys

  • Engine piston ring sets — multi-piece sets designed to match the bore specifications of Willys engines from this era
  • Individual engine piston rings — single rings available for targeted replacement
  • Engine mounts — cast iron and OE-replacement style mounts for securing the engine block

The widest selection here comes from MAHLE, Hastings, King Engine Bearings, and Crown Automotive. Other categories Jeep Willys owners shop for: Jeep Willys Steering Gear and Parts, Jeep Willys Steering Bearings and Jeep Willys Fuel Injectors and Injection Parts, or browse all Jeep Willys parts and accessories.