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2007-18 Jeep Wrangler JK Nodular Iron Diff Cover 12312 - Dana 44YouTube Button

B&M Nodular Iron Differential Cover for Dana 44

Dana 44 Differential Cover.

PART# 12312

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$203.00   Suggested Retail
$181.95   Your Price
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New, from B&M's popular Hi-Tek line of products comes a heavy duty Nodular Iron Differential Cover specifically designed for serious off-road enthusiasts. This super tough differential cover fits all 2007-2018 Jeep Wrangler JK with Dana 44 rear differentials and Rubicon models which generally have Dana 44 differentials front and rear. Features include a super durable black powder coated clear gloss finish with machined B&M logo, reinforcing ribs to help strengthen the cover and give it rugged good looks. Other features include a magnetic drain plug, a fill port with an o-ringed magnetic dipstick with "easy-grip" checkering for a sure grip when checking fluid levels whether on the trail, in the shop or at home. All hardware and installation instructions are included. Note: Gasket not included.


  • Fill Plug and Drain Plug for Easy Servicing
  • Super Tough Nodular Iron Construction
  • Magnetic Dipstick to Check Fluid Level
  • Over 65 Years of B&M Quality
  • Black Powder Coated Finish
  • Lifetime Limited Warranty
  • Easy Installation


Additional Fluid Capacity (qts)No
Bolt Count10
Bolt/Studs IncludedYes
Call Out Size (in)2.61
Carrier Main Cap SupportNo
Color/FinishBlack Powder Coat
Differential Cover Bolt PatternDANA 44
Differential Thickness (in)2.91
Drain Plug IncludedYes
Emission Code5
Filler Plug IncludedYes
Gasket IncludedNo
MaterialNodular Iron
Product TypeDifferential Cover
California Proposition 65 Chemical NameChromium (hexavalent compounds)
California Proposition 65 RequiredYes
Part Number12312



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

In The Box

In The Box

  • Cover
  • Fill Cap/Dipstick
  • Drain Plug
  • Bolts
  • Washers
  • Instructions

Tech Resources

Designed to fit most vehicles with Dana 44 Front or Rear differential, however vehicles may have other interfering components that may require modifications or moving of existing brackets, require longer cover bolts or different cover bolts, clearance of sway bars etc. - Checking for adequate clearance and fitment for your application should be verified prior to purchase & installation. Refer to ID guide and measurement drawings for specifications.


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      Some parts are not legal for use in California or other states with similar regulations.