5.9L Cummins Overhaul/Rebuild kit featuring Mahle Pistons & Rings
We are currently experiencing a very heavy demand for these kits.
Please allow up to 3-4 business days before your kit ships.
Fly cut pistons will add 1-2 weeks to delivery time. Please indicate cut depth desired in order comments.
Coated Pistons will add approx 2 weeks to the delivery time.
No returns on coated or fly cut pistons!
The stock bowls are identical to the stock pistons, while the larger bowl pistons are about 17.6:1 compression, stock is 17.9:1. We have had no reports of hard starting, etc with the larger bowl pistons, even in very cold climates. Everything that is pictured is included.
ALL COMPONENTS WILL BE SUPPLIED FROM A COMBINATION OF THE FOLLOWING MANUFACTURERS:
Mahle, Clevite, Pefect Circle, Interstate McBee, and/or Cummins (High demand on these kits has been running the manufacturers out of stock from time to time so we have to substitute what is available........we do NOT supply products that we feel are inferior in quality/durability.
**Kits do NOT come with wrist pin bushings, please add them separately if needed...................these need pressed & burnished by a machine shop into the connecting rod.........typically these do not need replaced**
Picture depicts standard bore pistons. 2 different piston bowl styles are available. See picture below, left depicts the smaller bowl pistons while the right depicts the larger (marine) style bowl.
We HIGHLY recommend the larger bowl piston. Please allow an extra 2 weeks delivery time if you would like the stock bowl size. THE TOP OF THE LARGE BOWL PISTONS ARE TAPERED IN OUR MACHINE SHOP TO AVOID STICKING. We do not recommend re-using stock head bolts. Wrist pin bushings are NOT included. *All engine blocks 1997.5 & newer have "Encore" blocks. (these have 2 turbo oil return holes on the passenger side of the block)*
(Large Bowl) Mahle Piston Specifications | Related Part Number 1: | S41518
| | Material: | Aluminum | | Casting Number: | 102L37 | | Maximum Oversize: | .040"
1.00mm | | Bore Diameter: | 4.016"
102.00mm | | Piston Skirt Clearance: | 0.0047" | | Measure Skirt Clearance At: | 0.472 from the bottom of skirt | | Piston Pin Diameter: | 1.575"
40.00mm | | Piston Pin Retention Type: | Floating | | Pin Hole Location: | Offset | | Head Type Description: | Reentrant Bowl Type Head | | Recess Depth: | 0.685" | | Recess Diameter: | 2.520" | | Recess Volume: | 47.1cc | | Compression Height: | Standard | | Compression Distance: | 2.817"
71.56mm | | Compression Ring Groove 1: | 3.00mm, this ring is 14MM down from the top of piston.
| | Compression Ring Groove 2: | 2.40mm | | Oil Ring Groove Width 1: | 4.00mm | | Note 1: | OE casting # 102O18 | | Note 2: | Keystone Top ring |
We also offer:
03-04 5.9L Commonrail Cummins Overhaul Kits, Click here.
04.5-07 5.9L Commonrail Cummins Overhaul Kits, Click Here.
98.5-2002 5.9L 24 Valve Cummins Overhaul Kits, Click Here .
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