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Mahle P27820 Axle Housing Cover GasketOE Quality 60-Day Returns
Part #: P27820

Mahle P27820 Axle Housing Cover Gasket

40 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet, Pontiac, Buick, and Oldsmobile, Bel Air, Biscayne, Brookwood, Caprice, Impala, Kingswood, Townsman, Grand Prix, LeMans, Electra, Estate Wagon, LeSabre, Riviera, Skylark, Sportwagon, Wildcat, GTO, Special, Firebird, Tempest, Cutlass Supreme, and F85
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Axle Housing Cover Gasket for OE-Style Sealing

The Mahle P27820 axle housing cover gasket is an OEM-standard paper gasket built for a precise seal at the differential cover. It is made for service on classic GM and Pontiac rear axle applications where the cover must seal cleanly against the housing to help prevent gear oil seepage.

Compatible with 1964-1972 Buick, Chevrolet, Oldsmobile, and Pontiac applications listed below, this gasket supports a proper axle housing cover seal on vehicles such as the Pontiac GTO, Chevrolet Impala, and Buick Skylark. Mahle gaskets are used by OEMs and technicians worldwide for sealing performance in driveline service.

Key Features

  • Paper gasket material for axle housing cover sealing
  • OEM standard item grade for service replacement use
  • Designed for 10-bolt cover applications measuring 10 in x 10-7/16 in
  • Direct replacement for Mahle P27820
  • Cross-references FEL-PRO RDS 13410 for the same application

Detailed Description

The Mahle P27820 is an axle housing cover gasket for rear differential service on select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. It is specified for 10-bolt hole covers with the listed dimensions and paper construction, making it a practical OE-style sealing solution for driveline maintenance. This part number, P27820, is commonly searched for classic GM axle cover gasket replacement on vehicles including the Pontiac Firebird, Chevrolet Caprice, and Buick LeSabre.

This gasket helps restore the seal between the axle housing and cover after inspection, fluid service, or differential work. Mahle P27820 is also cross-referenced to Chrysler Z3282 and General Motors 1234482, 1367346, 2775089, and 9775683.

What This Part Helps Address

  • Gear oil seepage at the axle housing cover
  • Leaks caused by an aged or compressed paper gasket
  • Seal loss after differential cover removal
  • Maintenance issues during rear axle fluid service
  • Fitment problems on 10-bolt, 10 in x 10-7/16 in cover applications

Installation Notes and Tips

  • Clean both sealing surfaces thoroughly before installation
  • Inspect the axle cover and housing flange for nicks, corrosion, or warping
  • Use the listed cover dimensions and bolt-hole count to confirm application before service
  • Follow the vehicle service manual for torque sequence and fluid refill specifications

Quality Assurance

Mahle supplies sealing products used by OEMs and technicians around the world, and this gasket is built to OEM standard specifications for service replacement use.

Compatible With: 1971-1972 Chevrolet Bel Air, 1971-1972 Chevrolet Caprice, 1971-1972 Chevrolet Impala, 1970-1972 Pontiac Grand Prix, 1968-1972 Pontiac LeMans, 1965-1970 Buick LeSabre, 1968-1970 Buick Riviera, 1965-1970 Buick Skylark, 1970 Pontiac GTO, 1967-1969 Pontiac Firebird, 1964-1969 Pontiac Tempest, and 1967 Oldsmobile Cutlass Supreme.

BrandMahle
Part NumberP27820
Gasket MaterialPaper
Item GradeOEM Standard

This part fits 40 vehicles. Search below:

YearMakeModelPositionNotes
1972ChevroletBel AirN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1972ChevroletCapriceN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1972ChevroletImpalaN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1972PontiacGrand PrixN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1972PontiacLeMansN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1971ChevroletBel AirN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1971ChevroletCapriceN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1971ChevroletImpalaN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1971PontiacGrand PrixN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1971PontiacLeMansN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1970BuickLeSabreN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1970BuickRivieraN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1970BuickSkylarkN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1970PontiacGrand PrixN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1970PontiacGTON/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1970PontiacLeMansN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1969BuickLeSabreN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1969BuickRivieraN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1969BuickSkylarkN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1969PontiacFirebirdN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1969PontiacLeMansN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1969PontiacTempestN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1968BuickLeSabreN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1968BuickRivieraN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1968BuickSkylarkN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1968PontiacFirebirdN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1968PontiacLeMansN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1968PontiacTempestN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1967BuickLeSabreN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1967BuickSkylarkN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1967OldsmobileCutlass SupremeN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1967PontiacFirebirdN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1967PontiacTempestN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1966BuickLeSabreN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1966BuickSkylarkN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1966PontiacTempestN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1965BuickLeSabreN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1965BuickSkylarkN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1965PontiacTempestN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper
1964PontiacTempestN/AWith 10 Bolt Holes, 10in x 10-7/16in; Paper

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Z3282

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.