Mahle Motorsport Cummins 5.9L 24V Steel Monotherm Piston Set 4.015 in. Bore

SKU: mhl929969315 UPC: 929969315
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Regular price $3,247.06

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This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.

Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm. For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase. Orders shipping to restricted areas may be canceled.

Mahle Motorsport forged steel Monotherm pistons for the 2003-2007 Cummins 5.9L 24V common rail, machined to a 4.015 in. bore. The one-piece steel design replaces the factory aluminum piston in builds where cylinder pressure is the limiting factor.

Key Features

  • One-piece forged steel Monotherm construction
  • Bore: 4.015 in. | Stroke: 4.724 in. | Rod: 7.559 in
  • Compression height 2.804 in., reduced 0.010 in. from stock
  • Crown volume -48.6cc for a 15.9:1 compression ratio
  • Modified 04.5-07 bowl for reduced compression ratio
  • 0.075 in. valve pockets
  • DLC coated wrist pin included
  • S42170 ring set included
  • Listed weight: 1681 grams each

Fitment

  • Cummins 5.9L B-Series 24V common rail, 2003-2007
  • Uses 04.5-07 style injectors
  • 4.015 in. bore

Product Details

  • Manufacturer Part Number: 929969315
  • Brand: Mahle Motorsport
  • Bore: 4.015 in
  • Stroke: 4.724 in
  • Rod length: 7.559 in
  • Compression height: 2.804 in
  • Pin diameter: 1.575 in
  • Crown volume: -48.6cc
  • Compression ratio: 15.9:1
  • Material: Forged steel
  • Weight: 1681 grams
  • Ring set: S42170 included
  • Quantity: Set of 6
  • Compression ratio calculated with 0.010 in. piston protrusion above deck and a 0.060 x 4.150 in. head gasket

Shipping Height: 8.0

Shipping Length: 13.0

Shipping Width: 11.0

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