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INTERSTATE MCBEE

INTERSTATE-MCBEE M-3802132 PISTON KIT .020 OVER MARINE BOWL 89–98 5.9L CUMMINS (AFTERMARKET REPLACEMENT)

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SKU:
MCBM-3802132
MPN:
M-3802132
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  • INTERSTATE-MCBEE M-3802132 PISTON KIT .020 OVER MARINE BOWL 89–98 5.9L CUMMINS (AFTERMARKET REPLACEMENT)
  • INTERSTATE-MCBEE M-3802132 PISTON KIT .020 OVER MARINE BOWL 89–98 5.9L CUMMINS (AFTERMARKET REPLACEMENT)
$112.14

Description

Interstate-McBee M-3802132 Piston Kit – .020 Over Marine Bowl (89–98 5.9L Cummins 12V)

Restore compression and durability on your 1989–1998 5.9L Cummins 12-valve (6BT) with the Interstate-McBee M-3802132 piston kit. This .020" (0.50 mm) oversize, marine-style large bowl piston is a proven upgrade for 12V builds that need an overbore, delivering OEM-style fit with aftermarket value.

  • .020" (0.50 mm) oversize: Ideal for blocks machined during rebuilds.
  • Marine-style large bowl: Popular choice for 12V performance and towing builds.
  • OEM-equivalent form, fit & function: Built to Cummins-spec geometry.
  • Aftermarket value: Save versus OEM while maintaining dependable quality.

Specifications

Interstate-McBee P/N M-3802132
OEM Cross-Reference Cummins 3802132
Bore Size .020" over (0.50 mm)
Bowl Type Marine-style large bowl
Kit Contents Piston, wrist pin, retainers; rings sold separately (see related .020 ring set)
Recommended Ring Set Interstate-McBee M-3802422 (.020) – sold separately

Vehicle Fitment

Always verify by engine serial number (ESN) for best results.

  • Dodge Ram 2500/3500, 5.9L Cummins 12-Valve (6BT):
    • Model Years: 1989–1998
  • Additional B-Series Applications: 4B/6B industrial and marine (varies by ESN and piston spec).

Install Notes

  • Measure and confirm cylinder finish and piston-to-wall clearance after machining.
  • Check ring end-gaps and orientation; follow Cummins service manual specs.
  • Verify piston protrusion and head gasket selection during assembly.

What’s Included

  • (1) Piston – .020" over marine-style bowl
  • (1) Wrist pin
  • (2) Pin retainers (circlips)
  • Rings sold separately – add Interstate-McBee M-3802422 (.020) ring set

Why Buy From CPP Diesel

  • ESN-verified fitment support from real diesel techs
  • Fast shipping and easy returns
  • Deep inventory of B-Series rebuild parts to finish the job

FAQ

Will this fit my 12-valve 5.9L Dodge Ram?
Yes. M-3802132 is specified for 1989–1998 5.9L Cummins 12V (6BT) applications that are bored .020" (0.50 mm). Always verify by ESN before ordering.
What’s the difference with the “marine-bowl” piston?
The marine-style piston uses a large bowl design favored on 12V builds for drivability and durability. It’s a direct-fit replacement when your block is machined .020" over.
Are piston rings included?
Rings are typically sold separately. For .020" over builds, add Interstate-McBee M-3802422 piston ring set to complete the cylinder.
Is there a standard-bore or .040" alternative?
Yes. Standard-bore and .040" over marine-bowl options are available in matching series for 1989–1998 5.9L Cummins 12V. See related products on this page.
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Additional Information

YEAR:
1989-1998
MAKE:
DODGE
ENGINE:
5.9L
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